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gecko-dev/widget/gtk/gtk3drawing.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* This file contains painting functions for each of the gtk2 widgets.
* Adapted from the gtkdrawing.c, and gtk+2.0 source.
*/
#include <gtk/gtk.h>
#include <gdk/gdkprivate.h>
#include <string.h>
#include "gtkdrawing.h"
#include "mozilla/Assertions.h"
#include "prinrval.h"
#include "WidgetStyleCache.h"
#include <math.h>
static GtkWidget* gProtoWindow;
static GtkWidget* gProtoLayout;
static GtkWidget* gButtonWidget;
static GtkWidget* gToggleButtonWidget;
static GtkWidget* gButtonArrowWidget;
static GtkWidget* gCheckboxWidget;
static GtkWidget* gRadiobuttonWidget;
static GtkWidget* gSpinWidget;
static GtkWidget* gHScaleWidget;
static GtkWidget* gVScaleWidget;
static GtkWidget* gEntryWidget;
static GtkWidget* gComboBoxWidget;
static GtkWidget* gComboBoxButtonWidget;
static GtkWidget* gComboBoxArrowWidget;
static GtkWidget* gComboBoxSeparatorWidget;
static GtkWidget* gComboBoxEntryWidget;
static GtkWidget* gComboBoxEntryTextareaWidget;
static GtkWidget* gComboBoxEntryButtonWidget;
static GtkWidget* gComboBoxEntryArrowWidget;
static GtkWidget* gHandleBoxWidget;
static GtkWidget* gToolbarWidget;
static GtkWidget* gFrameWidget;
static GtkWidget* gProgressWidget;
static GtkWidget* gTabWidget;
static GtkWidget* gTextViewWidget;
static GtkWidget* gTooltipWidget;
static GtkWidget* gMenuBarWidget;
static GtkWidget* gMenuBarItemWidget;
static GtkWidget* gMenuPopupWidget;
static GtkWidget* gMenuItemWidget;
static GtkWidget* gImageMenuItemWidget;
static GtkWidget* gCheckMenuItemWidget;
static GtkWidget* gTreeViewWidget;
static GtkTreeViewColumn* gMiddleTreeViewColumn;
static GtkWidget* gTreeHeaderCellWidget;
static GtkWidget* gTreeHeaderSortArrowWidget;
static GtkWidget* gExpanderWidget;
static GtkWidget* gToolbarSeparatorWidget;
static GtkWidget* gMenuSeparatorWidget;
static GtkWidget* gHPanedWidget;
static GtkWidget* gVPanedWidget;
static GtkWidget* gScrolledWindowWidget;
static GtkWidget* gInfoBar;
static style_prop_t style_prop_func;
static gboolean have_arrow_scaling;
static gboolean checkbox_check_state;
static gboolean notebook_has_tab_gap;
static gboolean is_initialized;
#define ARROW_UP 0
#define ARROW_DOWN G_PI
#define ARROW_RIGHT G_PI_2
#define ARROW_LEFT (G_PI+G_PI_2)
#if !GTK_CHECK_VERSION(3,14,0)
#define GTK_STATE_FLAG_CHECKED (1 << 11)
#endif
static GtkStateFlags
GetStateFlagsFromGtkWidgetState(GtkWidgetState* state)
{
GtkStateFlags stateFlags = GTK_STATE_FLAG_NORMAL;
if (state->disabled)
stateFlags = GTK_STATE_FLAG_INSENSITIVE;
else {
if (state->depressed || state->active)
stateFlags = static_cast<GtkStateFlags>(stateFlags|GTK_STATE_FLAG_ACTIVE);
if (state->inHover)
stateFlags = static_cast<GtkStateFlags>(stateFlags|GTK_STATE_FLAG_PRELIGHT);
if (state->focused)
stateFlags = static_cast<GtkStateFlags>(stateFlags|GTK_STATE_FLAG_FOCUSED);
}
return stateFlags;
}
/* Because we have such an unconventional way of drawing widgets, signal to the GTK theme engine
that they are drawing for Mozilla instead of a conventional GTK app so they can do any specific
things they may want to do. */
static void
moz_gtk_set_widget_name(GtkWidget* widget)
{
gtk_widget_set_name(widget, "MozillaGtkWidget");
}
gint
moz_gtk_enable_style_props(style_prop_t styleGetProp)
{
style_prop_func = styleGetProp;
return MOZ_GTK_SUCCESS;
}
static gint
ensure_window_widget()
{
if (!gProtoWindow) {
gProtoWindow = GetWidget(MOZ_GTK_WINDOW);
}
return MOZ_GTK_SUCCESS;
}
static gint
setup_widget_prototype(GtkWidget* widget)
{
if (!gProtoLayout) {
gProtoLayout = GetWidget(MOZ_GTK_WINDOW_CONTAINER);
}
gtk_container_add(GTK_CONTAINER(gProtoLayout), widget);
return MOZ_GTK_SUCCESS;
}
static gint
ensure_button_widget()
{
if (!gButtonWidget) {
gButtonWidget = gtk_button_new_with_label("M");
setup_widget_prototype(gButtonWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_hpaned_widget()
{
if (!gHPanedWidget) {
gHPanedWidget = gtk_paned_new(GTK_ORIENTATION_HORIZONTAL);
setup_widget_prototype(gHPanedWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_vpaned_widget()
{
if (!gVPanedWidget) {
gVPanedWidget = gtk_paned_new(GTK_ORIENTATION_VERTICAL);
setup_widget_prototype(gVPanedWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_toggle_button_widget()
{
if (!gToggleButtonWidget) {
gToggleButtonWidget = gtk_toggle_button_new();
setup_widget_prototype(gToggleButtonWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_button_arrow_widget()
{
if (!gButtonArrowWidget) {
ensure_toggle_button_widget();
gButtonArrowWidget = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
gtk_container_add(GTK_CONTAINER(gToggleButtonWidget), gButtonArrowWidget);
gtk_widget_realize(gButtonArrowWidget);
gtk_widget_show(gButtonArrowWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_checkbox_widget()
{
if (!gCheckboxWidget) {
gCheckboxWidget = gtk_check_button_new_with_label("M");
setup_widget_prototype(gCheckboxWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_radiobutton_widget()
{
if (!gRadiobuttonWidget) {
gRadiobuttonWidget = gtk_radio_button_new_with_label(NULL, "M");
setup_widget_prototype(gRadiobuttonWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_spin_widget()
{
if (!gSpinWidget) {
gSpinWidget = gtk_spin_button_new(NULL, 1, 0);
setup_widget_prototype(gSpinWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_scale_widget()
{
if (!gHScaleWidget) {
gHScaleWidget = gtk_scale_new(GTK_ORIENTATION_HORIZONTAL, NULL);
setup_widget_prototype(gHScaleWidget);
}
if (!gVScaleWidget) {
gVScaleWidget = gtk_scale_new(GTK_ORIENTATION_VERTICAL, NULL);
setup_widget_prototype(gVScaleWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_entry_widget()
{
if (!gEntryWidget) {
gEntryWidget = gtk_entry_new();
setup_widget_prototype(gEntryWidget);
}
return MOZ_GTK_SUCCESS;
}
/* We need to have pointers to the inner widgets (button, separator, arrow)
* of the ComboBox to get the correct rendering from theme engines which
* special cases their look. Since the inner layout can change, we ask GTK
* to NULL our pointers when they are about to become invalid because the
* corresponding widgets don't exist anymore. It's the role of
* g_object_add_weak_pointer().
* Note that if we don't find the inner widgets (which shouldn't happen), we
* fallback to use generic "non-inner" widgets, and they don't need that kind
* of weak pointer since they are explicit children of gProtoWindow and as
* such GTK holds a strong reference to them. */
static void
moz_gtk_get_combo_box_inner_button(GtkWidget *widget, gpointer client_data)
{
if (GTK_IS_TOGGLE_BUTTON(widget)) {
gComboBoxButtonWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer *) &gComboBoxButtonWidget);
gtk_widget_realize(widget);
}
}
static void
moz_gtk_get_combo_box_button_inner_widgets(GtkWidget *widget,
gpointer client_data)
{
if (GTK_IS_SEPARATOR(widget)) {
gComboBoxSeparatorWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer *) &gComboBoxSeparatorWidget);
} else if (GTK_IS_ARROW(widget)) {
gComboBoxArrowWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer *) &gComboBoxArrowWidget);
} else
return;
gtk_widget_realize(widget);
}
static gint
ensure_combo_box_widgets()
{
GtkWidget* buttonChild;
if (gComboBoxButtonWidget && gComboBoxArrowWidget)
return MOZ_GTK_SUCCESS;
/* Create a ComboBox if needed */
if (!gComboBoxWidget) {
gComboBoxWidget = gtk_combo_box_new();
setup_widget_prototype(gComboBoxWidget);
}
/* Get its inner Button */
gtk_container_forall(GTK_CONTAINER(gComboBoxWidget),
moz_gtk_get_combo_box_inner_button,
NULL);
if (gComboBoxButtonWidget) {
/* Get the widgets inside the Button */
buttonChild = gtk_bin_get_child(GTK_BIN(gComboBoxButtonWidget));
if (GTK_IS_BOX(buttonChild)) {
/* appears-as-list = FALSE, cell-view = TRUE; the button
* contains an hbox. This hbox is there because the ComboBox
* needs to place a cell renderer, a separator, and an arrow in
* the button when appears-as-list is FALSE. */
gtk_container_forall(GTK_CONTAINER(buttonChild),
moz_gtk_get_combo_box_button_inner_widgets,
NULL);
} else if(GTK_IS_ARROW(buttonChild)) {
/* appears-as-list = TRUE, or cell-view = FALSE;
* the button only contains an arrow */
gComboBoxArrowWidget = buttonChild;
g_object_add_weak_pointer(G_OBJECT(buttonChild), (gpointer *)
&gComboBoxArrowWidget);
gtk_widget_realize(gComboBoxArrowWidget);
}
} else {
/* Shouldn't be reached with current internal gtk implementation; we
* use a generic toggle button as last resort fallback to avoid
* crashing. */
ensure_toggle_button_widget();
gComboBoxButtonWidget = gToggleButtonWidget;
}
if (!gComboBoxArrowWidget) {
/* Shouldn't be reached with current internal gtk implementation;
* we gButtonArrowWidget as last resort fallback to avoid
* crashing. */
ensure_button_arrow_widget();
gComboBoxArrowWidget = gButtonArrowWidget;
}
/* We don't test the validity of gComboBoxSeparatorWidget since there
* is none when "appears-as-list" = TRUE or "cell-view" = FALSE; if it
* is invalid we just won't paint it. */
return MOZ_GTK_SUCCESS;
}
static void
ensure_info_bar()
{
if (!gInfoBar) {
gInfoBar = gtk_info_bar_new();
setup_widget_prototype(gInfoBar);
}
}
/* We need to have pointers to the inner widgets (entry, button, arrow) of
* the ComboBoxEntry to get the correct rendering from theme engines which
* special cases their look. Since the inner layout can change, we ask GTK
* to NULL our pointers when they are about to become invalid because the
* corresponding widgets don't exist anymore. It's the role of
* g_object_add_weak_pointer().
* Note that if we don't find the inner widgets (which shouldn't happen), we
* fallback to use generic "non-inner" widgets, and they don't need that kind
* of weak pointer since they are explicit children of gProtoWindow and as
* such GTK holds a strong reference to them. */
static void
moz_gtk_get_combo_box_entry_inner_widgets(GtkWidget *widget,
gpointer client_data)
{
if (GTK_IS_TOGGLE_BUTTON(widget)) {
gComboBoxEntryButtonWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer *) &gComboBoxEntryButtonWidget);
} else if (GTK_IS_ENTRY(widget)) {
gComboBoxEntryTextareaWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer *) &gComboBoxEntryTextareaWidget);
} else
return;
gtk_widget_realize(widget);
}
static void
moz_gtk_get_combo_box_entry_arrow(GtkWidget *widget, gpointer client_data)
{
if (GTK_IS_ARROW(widget)) {
gComboBoxEntryArrowWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer *) &gComboBoxEntryArrowWidget);
gtk_widget_realize(widget);
}
}
static gint
ensure_combo_box_entry_widgets()
{
GtkWidget* buttonChild;
if (gComboBoxEntryTextareaWidget &&
gComboBoxEntryButtonWidget &&
gComboBoxEntryArrowWidget)
return MOZ_GTK_SUCCESS;
/* Create a ComboBoxEntry if needed */
if (!gComboBoxEntryWidget) {
gComboBoxEntryWidget = gtk_combo_box_new_with_entry();
setup_widget_prototype(gComboBoxEntryWidget);
}
/* Get its inner Entry and Button */
gtk_container_forall(GTK_CONTAINER(gComboBoxEntryWidget),
moz_gtk_get_combo_box_entry_inner_widgets,
NULL);
if (!gComboBoxEntryTextareaWidget) {
ensure_entry_widget();
gComboBoxEntryTextareaWidget = gEntryWidget;
}
if (gComboBoxEntryButtonWidget) {
/* Get the Arrow inside the Button */
buttonChild = gtk_bin_get_child(GTK_BIN(gComboBoxEntryButtonWidget));
if (GTK_IS_BOX(buttonChild)) {
/* appears-as-list = FALSE, cell-view = TRUE; the button
* contains an hbox. This hbox is there because the ComboBox
* needs to place a cell renderer, a separator, and an arrow in
* the button when appears-as-list is FALSE. */
gtk_container_forall(GTK_CONTAINER(buttonChild),
moz_gtk_get_combo_box_entry_arrow,
NULL);
} else if(GTK_IS_ARROW(buttonChild)) {
/* appears-as-list = TRUE, or cell-view = FALSE;
* the button only contains an arrow */
gComboBoxEntryArrowWidget = buttonChild;
g_object_add_weak_pointer(G_OBJECT(buttonChild), (gpointer *)
&gComboBoxEntryArrowWidget);
gtk_widget_realize(gComboBoxEntryArrowWidget);
}
} else {
/* Shouldn't be reached with current internal gtk implementation;
* we use a generic toggle button as last resort fallback to avoid
* crashing. */
ensure_toggle_button_widget();
gComboBoxEntryButtonWidget = gToggleButtonWidget;
}
if (!gComboBoxEntryArrowWidget) {
/* Shouldn't be reached with current internal gtk implementation;
* we gButtonArrowWidget as last resort fallback to avoid
* crashing. */
ensure_button_arrow_widget();
gComboBoxEntryArrowWidget = gButtonArrowWidget;
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_handlebox_widget()
{
if (!gHandleBoxWidget) {
gHandleBoxWidget = gtk_handle_box_new();
setup_widget_prototype(gHandleBoxWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_toolbar_widget()
{
if (!gToolbarWidget) {
ensure_handlebox_widget();
gToolbarWidget = gtk_toolbar_new();
gtk_container_add(GTK_CONTAINER(gHandleBoxWidget), gToolbarWidget);
gtk_widget_realize(gToolbarWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_toolbar_separator_widget()
{
if (!gToolbarSeparatorWidget) {
ensure_toolbar_widget();
gToolbarSeparatorWidget = GTK_WIDGET(gtk_separator_tool_item_new());
setup_widget_prototype(gToolbarSeparatorWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tooltip_widget()
{
if (!gTooltipWidget) {
gTooltipWidget = gtk_window_new(GTK_WINDOW_POPUP);
GtkStyleContext* style = gtk_widget_get_style_context(gTooltipWidget);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_TOOLTIP);
gtk_widget_realize(gTooltipWidget);
moz_gtk_set_widget_name(gTooltipWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tab_widget()
{
if (!gTabWidget) {
gTabWidget = gtk_notebook_new();
setup_widget_prototype(gTabWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_progress_widget()
{
if (!gProgressWidget) {
gProgressWidget = gtk_progress_bar_new();
setup_widget_prototype(gProgressWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_frame_widget()
{
if (!gFrameWidget) {
gFrameWidget = gtk_frame_new(NULL);
setup_widget_prototype(gFrameWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_bar_widget()
{
if (!gMenuBarWidget) {
gMenuBarWidget = gtk_menu_bar_new();
setup_widget_prototype(gMenuBarWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_bar_item_widget()
{
if (!gMenuBarItemWidget) {
ensure_menu_bar_widget();
gMenuBarItemWidget = gtk_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuBarWidget),
gMenuBarItemWidget);
gtk_widget_realize(gMenuBarItemWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_popup_widget()
{
if (!gMenuPopupWidget) {
ensure_window_widget();
gMenuPopupWidget = gtk_menu_new();
gtk_menu_attach_to_widget(GTK_MENU(gMenuPopupWidget), gProtoWindow,
NULL);
gtk_widget_realize(gMenuPopupWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_item_widget()
{
if (!gMenuItemWidget) {
ensure_menu_popup_widget();
gMenuItemWidget = gtk_menu_item_new_with_label("M");
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gMenuItemWidget);
gtk_widget_realize(gMenuItemWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_image_menu_item_widget()
{
if (!gImageMenuItemWidget) {
ensure_menu_popup_widget();
gImageMenuItemWidget = gtk_image_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gImageMenuItemWidget);
gtk_widget_realize(gImageMenuItemWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_separator_widget()
{
if (!gMenuSeparatorWidget) {
ensure_menu_popup_widget();
gMenuSeparatorWidget = gtk_separator_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gMenuSeparatorWidget);
gtk_widget_realize(gMenuSeparatorWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_check_menu_item_widget()
{
if (!gCheckMenuItemWidget) {
ensure_menu_popup_widget();
gCheckMenuItemWidget = gtk_check_menu_item_new_with_label("M");
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gCheckMenuItemWidget);
gtk_widget_realize(gCheckMenuItemWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tree_view_widget()
{
if (!gTreeViewWidget) {
gTreeViewWidget = gtk_tree_view_new();
setup_widget_prototype(gTreeViewWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tree_header_cell_widget()
{
if(!gTreeHeaderCellWidget) {
/*
* Some GTK engines paint the first and last cell
* of a TreeView header with a highlight.
* Since we do not know where our widget will be relative
* to the other buttons in the TreeView header, we must
* paint it as a button that is between two others,
* thus ensuring it is neither the first or last button
* in the header.
* GTK doesn't give us a way to do this explicitly,
* so we must paint with a button that is between two
* others.
*/
GtkTreeViewColumn* firstTreeViewColumn;
GtkTreeViewColumn* lastTreeViewColumn;
ensure_tree_view_widget();
/* Create and append our three columns */
firstTreeViewColumn = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(firstTreeViewColumn, "M");
gtk_tree_view_append_column(GTK_TREE_VIEW(gTreeViewWidget), firstTreeViewColumn);
gMiddleTreeViewColumn = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(gMiddleTreeViewColumn, "M");
gtk_tree_view_append_column(GTK_TREE_VIEW(gTreeViewWidget),
gMiddleTreeViewColumn);
lastTreeViewColumn = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(lastTreeViewColumn, "M");
gtk_tree_view_append_column(GTK_TREE_VIEW(gTreeViewWidget), lastTreeViewColumn);
/* Use the middle column's header for our button */
gTreeHeaderCellWidget = gtk_tree_view_column_get_button(gMiddleTreeViewColumn);
/* TODO, but it can't be NULL */
gTreeHeaderSortArrowWidget = gtk_button_new();
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_expander_widget()
{
if (!gExpanderWidget) {
gExpanderWidget = gtk_expander_new("M");
setup_widget_prototype(gExpanderWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_scrolled_window_widget()
{
if (!gScrolledWindowWidget) {
gScrolledWindowWidget = gtk_scrolled_window_new(NULL, NULL);
setup_widget_prototype(gScrolledWindowWidget);
}
return MOZ_GTK_SUCCESS;
}
static void
ensure_text_view_widget()
{
if (gTextViewWidget)
return;
gTextViewWidget = gtk_text_view_new();
ensure_scrolled_window_widget();
gtk_container_add(GTK_CONTAINER(gScrolledWindowWidget), gTextViewWidget);
}
gint
moz_gtk_init()
{
if (is_initialized)
return MOZ_GTK_SUCCESS;
is_initialized = TRUE;
have_arrow_scaling = (gtk_major_version > 2 ||
(gtk_major_version == 2 && gtk_minor_version >= 12));
if (gtk_major_version > 3 ||
(gtk_major_version == 3 && gtk_minor_version >= 14))
checkbox_check_state = GTK_STATE_FLAG_CHECKED;
else
checkbox_check_state = GTK_STATE_FLAG_ACTIVE;
if(!gtk_check_version(3, 12, 0)) {
ensure_tab_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gTabWidget),
"has-tab-gap", &notebook_has_tab_gap, NULL);
}
else {
notebook_has_tab_gap = TRUE;
}
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_checkbox_get_metrics(gint* indicator_size, gint* indicator_spacing)
{
ensure_checkbox_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gCheckboxWidget),
"indicator_size", indicator_size,
"indicator_spacing", indicator_spacing,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_radio_get_metrics(gint* indicator_size, gint* indicator_spacing)
{
ensure_radiobutton_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gRadiobuttonWidget),
"indicator_size", indicator_size,
"indicator_spacing", indicator_spacing,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_focus_outline_size(gint* focus_h_width, gint* focus_v_width)
{
GtkBorder border;
GtkBorder padding;
GtkStyleContext *style;
ensure_entry_widget();
style = gtk_widget_get_style_context(gEntryWidget);
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
*focus_h_width = border.left + padding.left;
*focus_v_width = border.top + padding.top;
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_menuitem_get_horizontal_padding(gint* horizontal_padding)
{
ensure_menu_item_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gMenuItemWidget),
"horizontal-padding", horizontal_padding,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_checkmenuitem_get_horizontal_padding(gint* horizontal_padding)
{
ensure_check_menu_item_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gCheckMenuItemWidget),
"horizontal-padding", horizontal_padding,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_button_get_default_overflow(gint* border_top, gint* border_left,
gint* border_bottom, gint* border_right)
{
GtkBorder* default_outside_border;
ensure_button_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gButtonWidget),
"default-outside-border", &default_outside_border,
NULL);
if (default_outside_border) {
*border_top = default_outside_border->top;
*border_left = default_outside_border->left;
*border_bottom = default_outside_border->bottom;
*border_right = default_outside_border->right;
gtk_border_free(default_outside_border);
} else {
*border_top = *border_left = *border_bottom = *border_right = 0;
}
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_button_get_default_border(gint* border_top, gint* border_left,
gint* border_bottom, gint* border_right)
{
GtkBorder* default_border;
ensure_button_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gButtonWidget),
"default-border", &default_border,
NULL);
if (default_border) {
*border_top = default_border->top;
*border_left = default_border->left;
*border_bottom = default_border->bottom;
*border_right = default_border->right;
gtk_border_free(default_border);
} else {
/* see gtkbutton.c */
*border_top = *border_left = *border_bottom = *border_right = 1;
}
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_splitter_get_metrics(gint orientation, gint* size)
{
if (orientation == GTK_ORIENTATION_HORIZONTAL) {
ensure_hpaned_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gHPanedWidget),
"handle_size", size, NULL);
} else {
ensure_vpaned_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gVPanedWidget),
"handle_size", size, NULL);
}
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_window_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_window_widget();
gtk_widget_set_direction(gProtoWindow, direction);
style = gtk_widget_get_style_context(gProtoWindow);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_BACKGROUND);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_button_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkReliefStyle relief, GtkWidget* widget,
GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext* style = gtk_widget_get_style_context(widget);
gint x = rect->x, y=rect->y, width=rect->width, height=rect->height;
gtk_widget_set_direction(widget, direction);
gtk_style_context_save(style);
gtk_style_context_set_state(style, state_flags);
if (state->isDefault && relief == GTK_RELIEF_NORMAL) {
/* handle default borders both outside and inside the button */
gint default_top, default_left, default_bottom, default_right;
moz_gtk_button_get_default_overflow(&default_top, &default_left,
&default_bottom, &default_right);
x -= default_left;
y -= default_top;
width += default_left + default_right;
height += default_top + default_bottom;
gtk_render_background(style, cr, x, y, width, height);
gtk_render_frame(style, cr, x, y, width, height);
moz_gtk_button_get_default_border(&default_top, &default_left,
&default_bottom, &default_right);
x += default_left;
y += default_top;
width -= (default_left + default_right);
height -= (default_top + default_bottom);
} else if (relief != GTK_RELIEF_NONE || state->depressed ||
(state_flags & GTK_STATE_FLAG_PRELIGHT)) {
/* the following line can trigger an assertion (Crux theme)
file ../../gdk/gdkwindow.c: line 1846 (gdk_window_clear_area):
assertion `GDK_IS_WINDOW (window)' failed */
gtk_render_background(style, cr, x, y, width, height);
gtk_render_frame(style, cr, x, y, width, height);
}
if (state->focused) {
GtkBorder border;
gtk_style_context_get_border(style, state_flags, &border);
x += border.left;
y += border.top;
width -= (border.left + border.right);
height -= (border.top + border.bottom);
gtk_render_focus(style, cr, x, y, width, height);
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_toggle_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gboolean selected, gboolean inconsistent,
gboolean isradio, GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
gint indicator_size, indicator_spacing;
gint x, y, width, height;
gint focus_x, focus_y, focus_width, focus_height;
GtkWidget *w;
GtkStyleContext *style;
if (isradio) {
moz_gtk_radio_get_metrics(&indicator_size, &indicator_spacing);
w = gRadiobuttonWidget;
} else {
moz_gtk_checkbox_get_metrics(&indicator_size, &indicator_spacing);
w = gCheckboxWidget;
}
// XXX we should assert rect->height >= indicator_size too
// after bug 369581 is fixed.
MOZ_ASSERT(rect->width >= indicator_size,
"GetMinimumWidgetSize was ignored");
// Paint it center aligned in the rect.
x = rect->x + (rect->width - indicator_size) / 2;
y = rect->y + (rect->height - indicator_size) / 2;
width = indicator_size;
height = indicator_size;
focus_x = x - indicator_spacing;
focus_y = y - indicator_spacing;
focus_width = width + 2 * indicator_spacing;
focus_height = height + 2 * indicator_spacing;
style = gtk_widget_get_style_context(w);
gtk_widget_set_sensitive(w, !state->disabled);
gtk_widget_set_direction(w, direction);
gtk_style_context_save(style);
if (selected)
state_flags = static_cast<GtkStateFlags>(state_flags|checkbox_check_state);
if (inconsistent)
state_flags = static_cast<GtkStateFlags>(state_flags|GTK_STATE_FLAG_INCONSISTENT);
gtk_style_context_set_state(style, state_flags);
if (isradio) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_RADIO);
gtk_render_option(style, cr, x, y, width, height);
if (state->focused) {
gtk_render_focus(style, cr, focus_x, focus_y,
focus_width, focus_height);
}
}
else {
/*
* 'indeterminate' type on checkboxes. In GTK, the shadow type
* must also be changed for the state to be drawn.
*/
gtk_style_context_add_class(style, GTK_STYLE_CLASS_CHECK);
gtk_toggle_button_set_inconsistent(GTK_TOGGLE_BUTTON(gCheckboxWidget), inconsistent);
gtk_render_check(style, cr, x, y, width, height);
if (state->focused) {
gtk_render_focus(style, cr,
focus_x, focus_y, focus_width, focus_height);
}
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
calculate_button_inner_rect(GtkWidget* button, GdkRectangle* rect,
GdkRectangle* inner_rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
GtkBorder border;
GtkBorder padding = {0, 0, 0, 0};
style = gtk_widget_get_style_context(button);
/* This mirrors gtkbutton's child positioning */
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
inner_rect->x = rect->x + border.left + padding.left;
inner_rect->y = rect->y + padding.top + border.top;
inner_rect->width = MAX(1, rect->width - padding.left -
padding.right - border.left * 2);
inner_rect->height = MAX(1, rect->height - padding.top -
padding.bottom - border.top * 2);
return MOZ_GTK_SUCCESS;
}
static gint
calculate_arrow_rect(GtkWidget* arrow, GdkRectangle* rect,
GdkRectangle* arrow_rect, GtkTextDirection direction)
{
/* defined in gtkarrow.c */
gfloat arrow_scaling = 0.7;
gfloat xalign, xpad;
gint extent;
gint mxpad, mypad;
gfloat mxalign, myalign;
GtkMisc* misc = GTK_MISC(arrow);
if (have_arrow_scaling)
gtk_style_context_get_style(gtk_widget_get_style_context(arrow),
"arrow_scaling", &arrow_scaling, NULL);
gtk_misc_get_padding(misc, &mxpad, &mypad);
extent = MIN((rect->width - mxpad * 2),
(rect->height - mypad * 2)) * arrow_scaling;
gtk_misc_get_alignment(misc, &mxalign, &myalign);
xalign = direction == GTK_TEXT_DIR_LTR ? mxalign : 1.0 - mxalign;
xpad = mxpad + (rect->width - extent) * xalign;
arrow_rect->x = direction == GTK_TEXT_DIR_LTR ?
floor(rect->x + xpad) : ceil(rect->x + xpad);
arrow_rect->y = floor(rect->y + mypad +
((rect->height - extent) * myalign));
arrow_rect->width = arrow_rect->height = extent;
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_scrollbar_button_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkScrollbarButtonFlags flags,
GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GdkRectangle arrow_rect;
gdouble arrow_angle;
GtkStyleContext* style;
gint arrow_displacement_x, arrow_displacement_y;
GtkWidget *scrollbar =
GetWidget(flags & MOZ_GTK_STEPPER_VERTICAL ?
MOZ_GTK_SCROLLBAR_VERTICAL : MOZ_GTK_SCROLLBAR_HORIZONTAL);
gtk_widget_set_direction(scrollbar, direction);
if (flags & MOZ_GTK_STEPPER_VERTICAL) {
arrow_angle = (flags & MOZ_GTK_STEPPER_DOWN) ? ARROW_DOWN : ARROW_UP;
} else {
arrow_angle = (flags & MOZ_GTK_STEPPER_DOWN) ? ARROW_RIGHT : ARROW_LEFT;
}
style = gtk_widget_get_style_context(scrollbar);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_BUTTON);
gtk_style_context_set_state(style, state_flags);
if (arrow_angle == ARROW_RIGHT) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_RIGHT);
} else if (arrow_angle == ARROW_DOWN) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_BOTTOM);
} else if (arrow_angle == ARROW_LEFT) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_LEFT);
} else {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_TOP);
}
/* Scrollbar button has to be inset by trough_border because its DOM element
* is filling width of vertical scrollbar's track (or height in case
* of horizontal scrollbars). */
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
if (flags & MOZ_GTK_STEPPER_VERTICAL) {
rect->x += metrics.trough_border;
rect->width = metrics.slider_width;
} else {
rect->y += metrics.trough_border;
rect->height = metrics.slider_width;
}
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
arrow_rect.width = rect->width / 2;
arrow_rect.height = rect->height / 2;
gfloat arrow_scaling;
gtk_style_context_get_style(style, "arrow-scaling", &arrow_scaling, NULL);
gdouble arrow_size = MIN(rect->width, rect->height) * arrow_scaling;
arrow_rect.x = rect->x + (rect->width - arrow_size) / 2;
arrow_rect.y = rect->y + (rect->height - arrow_size) / 2;
if (state_flags & GTK_STATE_FLAG_ACTIVE) {
gtk_style_context_get_style(style,
"arrow-displacement-x", &arrow_displacement_x,
"arrow-displacement-y", &arrow_displacement_y,
NULL);
arrow_rect.x += arrow_displacement_x;
arrow_rect.y += arrow_displacement_y;
}
gtk_render_arrow(style, cr, arrow_angle,
arrow_rect.x,
arrow_rect.y,
arrow_size);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_scrollbar_trough_paint(WidgetNodeType widget,
cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkScrollbarTrackFlags flags,
GtkTextDirection direction)
{
if (flags & MOZ_GTK_TRACK_OPAQUE) {
GtkStyleContext* style =
gtk_widget_get_style_context(GTK_WIDGET(gProtoWindow));
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
}
GtkStyleContext* style =
ClaimStyleContext(widget == MOZ_GTK_SCROLLBAR_HORIZONTAL ?
MOZ_GTK_SCROLLBAR_TROUGH_HORIZONTAL :
MOZ_GTK_SCROLLBAR_TROUGH_VERTICAL,
direction);
// TODO - integate with ClaimStyleContext()?
gtk_style_context_set_direction(style, direction);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
if (state->focused) {
gtk_render_focus(style, cr,
rect->x, rect->y, rect->width, rect->height);
}
ReleaseStyleContext(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_scrollbar_thumb_paint(WidgetNodeType widget,
cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkBorder margin;
GtkStyleContext* style = ClaimStyleContext(widget, direction);
// TODO - integate those with ClaimStyleContext()?
gtk_style_context_set_state(style, state_flags);
gtk_style_context_set_direction(style, direction);
gtk_style_context_get_margin (style, state_flags, &margin);
gtk_render_slider(style, cr,
rect->x + margin.left,
rect->y + margin.top,
rect->width - margin.left - margin.right,
rect->height - margin.top - margin.bottom,
(widget == MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL) ?
GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL);
ReleaseStyleContext(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_spin_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_spin_widget();
gtk_widget_set_direction(gSpinWidget, direction);
style = gtk_widget_get_style_context(gSpinWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_SPINBUTTON);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_spin_updown_paint(cairo_t *cr, GdkRectangle* rect,
gboolean isDown, GtkWidgetState* state,
GtkTextDirection direction)
{
GdkRectangle arrow_rect;
GtkStyleContext* style;
ensure_spin_widget();
style = gtk_widget_get_style_context(gSpinWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_SPINBUTTON);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
gtk_widget_set_direction(gSpinWidget, direction);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
/* hard code these values */
arrow_rect.width = 6;
arrow_rect.height = 6;
arrow_rect.x = rect->x + (rect->width - arrow_rect.width) / 2;
arrow_rect.y = rect->y + (rect->height - arrow_rect.height) / 2;
arrow_rect.y += isDown ? -1 : 1;
gtk_render_arrow(style, cr,
isDown ? ARROW_DOWN : ARROW_UP,
arrow_rect.x, arrow_rect.y,
arrow_rect.width);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
/* See gtk_range_draw() for reference.
*/
static gint
moz_gtk_scale_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkOrientation flags, GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
gint x, y, width, height, min_width, min_height;
GtkStyleContext* style;
GtkWidget* widget;
GtkBorder margin;
ensure_scale_widget();
widget = ((flags == GTK_ORIENTATION_HORIZONTAL) ? gHScaleWidget : gVScaleWidget);
gtk_widget_set_direction(widget, direction);
moz_gtk_get_scale_metrics(flags, &min_width, &min_height);
style = gtk_widget_get_style_context(widget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_TROUGH);
gtk_style_context_get_margin(style, state_flags, &margin);
// Clamp the dimension perpendicular to the direction that the slider crosses
// to the minimum size.
if (flags == GTK_ORIENTATION_HORIZONTAL) {
width = rect->width - (margin.left + margin.right);
height = min_height - (margin.top + margin.bottom);
x = rect->x + margin.left;
y = rect->y + (rect->height - height)/2;
} else {
width = min_width - (margin.left + margin.right);
height = rect->height - (margin.top + margin.bottom);
x = rect->x + (rect->width - width)/2;
y = rect->y + margin.top;
}
gtk_render_background(style, cr, x, y, width, height);
gtk_render_frame(style, cr, x, y, width, height);
if (state->focused)
gtk_render_focus(style, cr,
rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_scale_thumb_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkOrientation flags, GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext* style;
GtkWidget* widget;
gint thumb_width, thumb_height, x, y;
ensure_scale_widget();
widget = ((flags == GTK_ORIENTATION_HORIZONTAL) ? gHScaleWidget : gVScaleWidget);
gtk_widget_set_direction(widget, direction);
style = gtk_widget_get_style_context(widget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_SLIDER);
gtk_style_context_set_state(style, state_flags);
/* determine the thumb size, and position the thumb in the center in the opposite axis
*/
if (flags == GTK_ORIENTATION_HORIZONTAL) {
moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_HORIZONTAL, &thumb_width, &thumb_height);
x = rect->x;
y = rect->y + (rect->height - thumb_height) / 2;
}
else {
moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_VERTICAL, &thumb_height, &thumb_width);
x = rect->x + (rect->width - thumb_width) / 2;
y = rect->y;
}
gtk_render_slider(style, cr, x, y, thumb_width, thumb_height, flags);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_gripper_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_handlebox_widget();
gtk_widget_set_direction(gHandleBoxWidget, direction);
style = gtk_widget_get_style_context(gHandleBoxWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_GRIP);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_hpaned_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state)
{
GtkStyleContext* style;
ensure_hpaned_widget();
style = gtk_widget_get_style_context(gHPanedWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_PANE_SEPARATOR);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
gtk_render_handle(style, cr,
rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_vpaned_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state)
{
GtkStyleContext* style;
ensure_vpaned_widget();
style = gtk_widget_get_style_context(gVPanedWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_PANE_SEPARATOR);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
gtk_render_handle(style, cr,
rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
// See gtk_entry_draw() for reference.
static gint
moz_gtk_entry_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkWidget* widget, GtkTextDirection direction)
{
gint x = rect->x, y = rect->y, width = rect->width, height = rect->height;
GtkStyleContext* style;
int draw_focus_outline_only = state->depressed; // NS_THEME_FOCUS_OUTLINE
gtk_widget_set_direction(widget, direction);
style = gtk_widget_get_style_context(widget);
if (draw_focus_outline_only) {
// Inflate the given 'rect' with the focus outline size.
gint h, v;
moz_gtk_get_focus_outline_size(&h, &v);
rect->x -= h;
rect->width += 2 * h;
rect->y -= v;
rect->height += 2 * v;
width = rect->width;
height = rect->height;
}
/* gtkentry.c uses two windows, one for the entire widget and one for the
* text area inside it. The background of both windows is set to the "base"
* color of the new state in gtk_entry_state_changed, but only the inner
* textarea window uses gtk_paint_flat_box when exposed */
/* This gets us a lovely greyish disabledish look */
gtk_widget_set_sensitive(widget, !state->disabled);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_ENTRY);
/* Now paint the shadow and focus border.
* We do like in gtk_entry_draw_frame, we first draw the shadow, a tad
* smaller when focused if the focus is not interior, then the focus. */
if (state->focused && !state->disabled) {
/* This will get us the lit borders that focused textboxes enjoy on
* some themes. */
gtk_style_context_set_state(style, GTK_STATE_FLAG_FOCUSED);
}
if (state->disabled) {
gtk_style_context_set_state(style, GTK_STATE_FLAG_INSENSITIVE);
}
if (!draw_focus_outline_only) {
gtk_render_background(style, cr, x, y, width, height);
}
gtk_render_frame(style, cr, x, y, width, height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_text_view_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
ensure_text_view_widget();
ensure_scrolled_window_widget();
gtk_widget_set_direction(gTextViewWidget, direction);
gtk_widget_set_direction(gScrolledWindowWidget, direction);
GtkStyleContext* style = gtk_widget_get_style_context(gTextViewWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_VIEW);
GtkStyleContext* style_frame = gtk_widget_get_style_context(gScrolledWindowWidget);
gtk_style_context_save(style_frame);
gtk_style_context_add_class(style_frame, GTK_STYLE_CLASS_FRAME);
if (state->focused && !state->disabled) {
gtk_style_context_set_state(style, GTK_STATE_FLAG_FOCUSED);
}
if (state->disabled) {
gtk_style_context_set_state(style, GTK_STATE_FLAG_INSENSITIVE);
gtk_style_context_set_state(style_frame, GTK_STATE_FLAG_INSENSITIVE);
}
gtk_render_frame(style_frame, cr, rect->x, rect->y, rect->width, rect->height);
GtkBorder border, padding;
GtkStateFlags state_flags = gtk_style_context_get_state(style);
gtk_style_context_get_border(style_frame, state_flags, &border);
gtk_style_context_get_padding(style_frame, state_flags, &padding);
gint xthickness = border.left + padding.left;
gint ythickness = border.top + padding.top;
gtk_render_background(style, cr,
rect->x + xthickness, rect->y + ythickness,
rect->width - 2 * xthickness,
rect->height - 2 * ythickness);
gtk_style_context_restore(style);
gtk_style_context_restore(style_frame);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_treeview_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
gint xthickness, ythickness;
GtkStyleContext *style;
GtkStyleContext *style_tree;
GtkStateFlags state_flags;
GtkBorder border;
ensure_tree_view_widget();
ensure_scrolled_window_widget();
gtk_widget_set_direction(gTreeViewWidget, direction);
gtk_widget_set_direction(gScrolledWindowWidget, direction);
/* only handle disabled and normal states, otherwise the whole background
* area will be painted differently with other states */
state_flags = state->disabled ? GTK_STATE_FLAG_INSENSITIVE : GTK_STATE_FLAG_NORMAL;
style = gtk_widget_get_style_context(gScrolledWindowWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_FRAME);
gtk_style_context_get_border(style, state_flags, &border);
xthickness = border.left;
ythickness = border.top;
style_tree = gtk_widget_get_style_context(gTreeViewWidget);
gtk_style_context_save(style_tree);
gtk_style_context_add_class(style_tree, GTK_STYLE_CLASS_VIEW);
gtk_render_background(style_tree, cr,
rect->x + xthickness, rect->y + ythickness,
rect->width - 2 * xthickness,
rect->height - 2 * ythickness);
gtk_render_frame(style, cr,
rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
gtk_style_context_restore(style_tree);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_tree_header_cell_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gboolean isSorted, GtkTextDirection direction)
{
moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL,
gTreeHeaderCellWidget, direction);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_tree_header_sort_arrow_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state, GtkArrowType arrow_type,
GtkTextDirection direction)
{
GdkRectangle arrow_rect;
gdouble arrow_angle;
GtkStyleContext* style;
ensure_tree_header_cell_widget();
gtk_widget_set_direction(gTreeHeaderSortArrowWidget, direction);
/* hard code these values */
arrow_rect.width = 11;
arrow_rect.height = 11;
arrow_rect.x = rect->x + (rect->width - arrow_rect.width) / 2;
arrow_rect.y = rect->y + (rect->height - arrow_rect.height) / 2;
style = gtk_widget_get_style_context(gTreeHeaderSortArrowWidget);
gtk_style_context_save(style);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
switch (arrow_type) {
case GTK_ARROW_LEFT:
arrow_angle = ARROW_LEFT;
break;
case GTK_ARROW_RIGHT:
arrow_angle = ARROW_RIGHT;
break;
case GTK_ARROW_DOWN:
arrow_angle = ARROW_DOWN;
break;
default:
arrow_angle = ARROW_UP;
break;
}
if (arrow_type != GTK_ARROW_NONE)
gtk_render_arrow(style, cr, arrow_angle,
arrow_rect.x, arrow_rect.y,
arrow_rect.width);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
/* See gtk_expander_paint() for reference.
*/
static gint
moz_gtk_treeview_expander_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkExpanderStyle expander_state,
GtkTextDirection direction)
{
GtkStyleContext *style;
GtkStateFlags state_flags;
ensure_tree_view_widget();
gtk_widget_set_direction(gTreeViewWidget, direction);
style = gtk_widget_get_style_context(gTreeViewWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_EXPANDER);
/* Because the frame we get is of the entire treeview, we can't get the precise
* event state of one expander, thus rendering hover and active feedback useless. */
state_flags = state->disabled ? GTK_STATE_FLAG_INSENSITIVE : GTK_STATE_FLAG_NORMAL;
/* GTK_STATE_FLAG_ACTIVE controls expanded/colapsed state rendering
* in gtk_render_expander()
*/
if (expander_state == GTK_EXPANDER_EXPANDED)
state_flags = static_cast<GtkStateFlags>(state_flags|GTK_STATE_FLAG_ACTIVE);
else
state_flags = static_cast<GtkStateFlags>(state_flags&~(GTK_STATE_FLAG_ACTIVE));
gtk_style_context_set_state(style, state_flags);
gtk_render_expander(style, cr,
rect->x,
rect->y,
rect->width,
rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
/* See gtk_separator_draw() for reference.
*/
static gint
moz_gtk_combo_box_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
GdkRectangle arrow_rect, real_arrow_rect;
gint separator_width;
gboolean wide_separators;
GtkStyleContext* style;
GtkRequisition arrow_req;
ensure_combo_box_widgets();
/* Also sets the direction on gComboBoxButtonWidget, which is then
* inherited by the separator and arrow */
moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL,
gComboBoxButtonWidget, direction);
calculate_button_inner_rect(gComboBoxButtonWidget,
rect, &arrow_rect, direction);
/* Now arrow_rect contains the inner rect ; we want to correct the width
* to what the arrow needs (see gtk_combo_box_size_allocate) */
gtk_widget_get_preferred_size(gComboBoxArrowWidget, NULL, &arrow_req);
if (direction == GTK_TEXT_DIR_LTR)
arrow_rect.x += arrow_rect.width - arrow_req.width;
arrow_rect.width = arrow_req.width;
calculate_arrow_rect(gComboBoxArrowWidget,
&arrow_rect, &real_arrow_rect, direction);
style = gtk_widget_get_style_context(gComboBoxArrowWidget);
gtk_render_arrow(style, cr, ARROW_DOWN,
real_arrow_rect.x, real_arrow_rect.y,
real_arrow_rect.width);
/* If there is no separator in the theme, there's nothing left to do. */
if (!gComboBoxSeparatorWidget)
return MOZ_GTK_SUCCESS;
style = gtk_widget_get_style_context(gComboBoxSeparatorWidget);
gtk_style_context_get_style(style,
"wide-separators", &wide_separators,
"separator-width", &separator_width,
NULL);
if (wide_separators) {
if (direction == GTK_TEXT_DIR_LTR)
arrow_rect.x -= separator_width;
else
arrow_rect.x += arrow_rect.width;
gtk_render_frame(style, cr, arrow_rect.x, arrow_rect.y, separator_width, arrow_rect.height);
} else {
if (direction == GTK_TEXT_DIR_LTR) {
GtkBorder padding;
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
gtk_style_context_get_padding(style, state_flags, &padding);
arrow_rect.x -= padding.left;
}
else
arrow_rect.x += arrow_rect.width;
gtk_render_line(style, cr,
arrow_rect.x, arrow_rect.y,
arrow_rect.x, arrow_rect.y + arrow_rect.height);
}
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_arrow_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkArrowType arrow_type, GtkTextDirection direction)
{
GtkStyleContext* style;
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GdkRectangle arrow_rect;
gdouble arrow_angle;
ensure_button_arrow_widget();
style = gtk_widget_get_style_context(gButtonArrowWidget);
gtk_style_context_save(style);
gtk_style_context_set_state(style, state_flags);
gtk_widget_set_direction(gButtonArrowWidget, direction);
calculate_arrow_rect(gButtonArrowWidget, rect, &arrow_rect,
direction);
if (direction == GTK_TEXT_DIR_RTL) {
arrow_type = (arrow_type == GTK_ARROW_LEFT) ?
GTK_ARROW_RIGHT : GTK_ARROW_LEFT;
}
switch (arrow_type) {
case GTK_ARROW_LEFT:
arrow_angle = ARROW_LEFT;
break;
case GTK_ARROW_RIGHT:
arrow_angle = ARROW_RIGHT;
break;
case GTK_ARROW_DOWN:
arrow_angle = ARROW_DOWN;
break;
default:
arrow_angle = ARROW_UP;
break;
}
if (arrow_type != GTK_ARROW_NONE)
gtk_render_arrow(style, cr, arrow_angle,
arrow_rect.x, arrow_rect.y, arrow_rect.width);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_combo_box_entry_button_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gboolean input_focus,
GtkTextDirection direction)
{
gint x_displacement, y_displacement;
GdkRectangle arrow_rect, real_arrow_rect;
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext* style;
ensure_combo_box_entry_widgets();
moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL,
gComboBoxEntryButtonWidget, direction);
calculate_button_inner_rect(gComboBoxEntryButtonWidget,
rect, &arrow_rect, direction);
if (state_flags & GTK_STATE_FLAG_ACTIVE) {
gtk_style_context_get_style(gtk_widget_get_style_context(gComboBoxEntryButtonWidget),
"child-displacement-x", &x_displacement,
"child-displacement-y", &y_displacement,
NULL);
arrow_rect.x += x_displacement;
arrow_rect.y += y_displacement;
}
calculate_arrow_rect(gComboBoxEntryArrowWidget,
&arrow_rect, &real_arrow_rect, direction);
style = gtk_widget_get_style_context(gComboBoxEntryArrowWidget);
gtk_render_arrow(style, cr, ARROW_DOWN,
real_arrow_rect.x, real_arrow_rect.y,
real_arrow_rect.width);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_container_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gboolean isradio, GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext* style;
GtkWidget *widget;
if (isradio) {
ensure_radiobutton_widget();
widget = gRadiobuttonWidget;
} else {
ensure_checkbox_widget();
widget = gCheckboxWidget;
}
gtk_widget_set_direction(widget, direction);
style = gtk_widget_get_style_context(widget);
gtk_style_context_save(style);
gtk_style_context_set_state(style, state_flags);
/* this is for drawing a prelight box */
if (state_flags & GTK_STATE_FLAG_PRELIGHT) {
gtk_render_background(style, cr,
rect->x, rect->y, rect->width, rect->height);
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_toggle_label_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gboolean isradio, GtkTextDirection direction)
{
GtkStyleContext *style;
GtkWidget *widget;
if (!state->focused)
return MOZ_GTK_SUCCESS;
if (isradio) {
ensure_radiobutton_widget();
widget = gRadiobuttonWidget;
} else {
ensure_checkbox_widget();
widget = gCheckboxWidget;
}
style = gtk_widget_get_style_context(widget);
gtk_style_context_save(style);
if (isradio) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_RADIO);
} else {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_CHECK);
}
gtk_widget_set_direction(widget, direction);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
gtk_render_focus(style, cr,
rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_toolbar_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_toolbar_widget();
gtk_widget_set_direction(gToolbarWidget, direction);
style = gtk_widget_get_style_context(gToolbarWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_TOOLBAR);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
/* See _gtk_toolbar_paint_space_line() for reference.
*/
static gint
moz_gtk_toolbar_separator_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
gint separator_width;
gint paint_width;
gboolean wide_separators;
/* Defined as constants in GTK+ 2.10.14 */
const double start_fraction = 0.2;
const double end_fraction = 0.8;
ensure_toolbar_separator_widget();
gtk_widget_set_direction(gToolbarSeparatorWidget, direction);
style = gtk_widget_get_style_context(gToolbarSeparatorWidget);
gtk_style_context_get_style(gtk_widget_get_style_context(gToolbarWidget),
"wide-separators", &wide_separators,
"separator-width", &separator_width,
NULL);
if (wide_separators) {
if (separator_width > rect->width)
separator_width = rect->width;
gtk_render_frame(style, cr,
rect->x + (rect->width - separator_width) / 2,
rect->y + rect->height * start_fraction,
separator_width,
rect->height * (end_fraction - start_fraction));
} else {
GtkBorder padding;
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
paint_width = padding.left;
if (paint_width > rect->width)
paint_width = rect->width;
gtk_render_line(style, cr,
rect->x + (rect->width - paint_width) / 2,
rect->y + rect->height * start_fraction,
rect->x + (rect->width - paint_width) / 2,
rect->y + rect->height * end_fraction);
}
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_tooltip_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_tooltip_widget();
gtk_widget_set_direction(gTooltipWidget, direction);
style = gtk_widget_get_style_context(gTooltipWidget);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_resizer_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
GtkStyleContext* style;
// gtk_render_handle() draws a background, so use GtkTextView and its
// GTK_STYLE_CLASS_VIEW to match the background with textarea elements.
// The resizer is drawn with shaded variants of the background color, and
// so a transparent background would lead to a transparent resizer.
ensure_text_view_widget();
gtk_widget_set_direction(gTextViewWidget, GTK_TEXT_DIR_LTR);
style = gtk_widget_get_style_context(gTextViewWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_VIEW);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_GRIP);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
// Workaround unico not respecting the text direction for resizers.
// See bug 1174248.
cairo_save(cr);
if (direction == GTK_TEXT_DIR_RTL) {
cairo_matrix_t mat;
cairo_matrix_init_translate(&mat, 2 * rect->x + rect->width, 0);
cairo_matrix_scale(&mat, -1, 1);
cairo_transform(cr, &mat);
}
gtk_render_handle(style, cr, rect->x, rect->y, rect->width, rect->height);
cairo_restore(cr);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_frame_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_frame_widget();
gtk_widget_set_direction(gFrameWidget, direction);
style = gtk_widget_get_style_context(gFrameWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_FRAME);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_progressbar_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_progress_widget();
gtk_widget_set_direction(gProgressWidget, direction);
style = gtk_widget_get_style_context(gProgressWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_TROUGH);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_progress_chunk_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction,
WidgetNodeType widget)
{
GtkStyleContext* style;
ensure_progress_widget();
gtk_widget_set_direction(gProgressWidget, direction);
style = gtk_widget_get_style_context(gProgressWidget);
gtk_style_context_save(style);
gtk_style_context_remove_class(style, GTK_STYLE_CLASS_TROUGH);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_PROGRESSBAR);
if (widget == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE ||
widget == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE) {
/**
* The bar's size and the bar speed are set depending of the progress'
* size. These could also be constant for all progress bars easily.
*/
gboolean vertical = (widget == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE);
/* The size of the dimension we are going to use for the animation. */
const gint progressSize = vertical ? rect->height : rect->width;
/* The bar is using a fifth of the element size, based on GtkProgressBar
* activity-blocks property. */
const gint barSize = MAX(1, progressSize / 5);
/* Represents the travel that has to be done for a complete cycle. */
const gint travel = 2 * (progressSize - barSize);
/* period equals to travel / pixelsPerMillisecond
* where pixelsPerMillisecond equals progressSize / 1000.0.
* This is equivalent to 1600. */
static const guint period = 1600;
const gint t = PR_IntervalToMilliseconds(PR_IntervalNow()) % period;
const gint dx = travel * t / period;
if (vertical) {
rect->y += (dx < travel / 2) ? dx : travel - dx;
rect->height = barSize;
} else {
rect->x += (dx < travel / 2) ? dx : travel - dx;
rect->width = barSize;
}
}
// gtk_render_activity was used to render progress chunks on GTK versions
// before 3.13.7, see bug 1173907.
if (!gtk_check_version(3, 13, 7)) {
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
} else {
gtk_render_activity(style, cr, rect->x, rect->y, rect->width, rect->height);
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_tab_thickness(void)
{
GtkBorder border;
GtkStyleContext * style;
ensure_tab_widget();
if (!notebook_has_tab_gap)
return 0; /* tabs do not overdraw the tabpanel border with "no gap" style */
style = gtk_widget_get_style_context(gTabWidget);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_NOTEBOOK);
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
if (border.top < 2)
return 2; /* some themes don't set ythickness correctly */
return border.top;
}
static void
moz_gtk_tab_prepare_style_context(GtkStyleContext *style,
GtkTabFlags flags)
{
gtk_style_context_set_state(style, ((flags & MOZ_GTK_TAB_SELECTED) == 0) ?
GTK_STATE_FLAG_NORMAL :
GTK_STATE_FLAG_ACTIVE);
gtk_style_context_add_region(style, GTK_STYLE_REGION_TAB,
(flags & MOZ_GTK_TAB_FIRST) ?
GTK_REGION_FIRST : static_cast<GtkRegionFlags>(0));
gtk_style_context_add_class(style, (flags & MOZ_GTK_TAB_BOTTOM) ?
GTK_STYLE_CLASS_BOTTOM :
GTK_STYLE_CLASS_TOP);
}
/* actual small tabs */
static gint
moz_gtk_tab_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTabFlags flags, GtkTextDirection direction)
{
/* When the tab isn't selected, we just draw a notebook extension.
* When it is selected, we overwrite the adjacent border of the tabpanel
* touching the tab with a pierced border (called "the gap") to make the
* tab appear physically attached to the tabpanel; see details below. */
GtkStyleContext* style;
GdkRectangle tabRect;
GdkRectangle focusRect;
GdkRectangle backRect;
int initial_gap = 0;
ensure_tab_widget();
gtk_widget_set_direction(gTabWidget, direction);
style = gtk_widget_get_style_context(gTabWidget);
gtk_style_context_save(style);
moz_gtk_tab_prepare_style_context(style, flags);
tabRect = *rect;
if (flags & MOZ_GTK_TAB_FIRST) {
gtk_style_context_get_style(style, "initial-gap", &initial_gap, NULL);
tabRect.width -= initial_gap;
if (direction != GTK_TEXT_DIR_RTL) {
tabRect.x += initial_gap;
}
}
focusRect = backRect = tabRect;
if (notebook_has_tab_gap) {
if ((flags & MOZ_GTK_TAB_SELECTED) == 0) {
/* Only draw the tab */
gtk_render_extension(style, cr,
tabRect.x, tabRect.y, tabRect.width, tabRect.height,
(flags & MOZ_GTK_TAB_BOTTOM) ?
GTK_POS_TOP : GTK_POS_BOTTOM );
} else {
/* Draw the tab and the gap
* We want the gap to be positioned exactly on the tabpanel top
* border; since tabbox.css may set a negative margin so that the tab
* frame rect already overlaps the tabpanel frame rect, we need to take
* that into account when drawing. To that effect, nsNativeThemeGTK
* passes us this negative margin (bmargin in the graphic below) in the
* lowest bits of |flags|. We use it to set gap_voffset, the distance
* between the top of the gap and the bottom of the tab (resp. the
* bottom of the gap and the top of the tab when we draw a bottom tab),
* while ensuring that the gap always touches the border of the tab,
* i.e. 0 <= gap_voffset <= gap_height, to avoid surprinsing results
* with big negative or positive margins.
* Here is a graphical explanation in the case of top tabs:
* ___________________________
* / \
* | T A B |
* ----------|. . . . . . . . . . . . . . .|----- top of tabpanel
* : ^ bmargin : ^
* : | (-negative margin, : |
* bottom : v passed in flags) : | gap_height
* of -> :.............................: | (the size of the
* the tab . part of the gap . | tabpanel top border)
* . outside of the tab . v
* ----------------------------------------------
*
* To draw the gap, we use gtk_paint_box_gap(), see comment in
* moz_gtk_tabpanels_paint(). This box_gap is made 3 * gap_height tall,
* which should suffice to ensure that the only visible border is the
* pierced one. If the tab is in the middle, we make the box_gap begin
* a bit to the left of the tab and end a bit to the right, adjusting
* the gap position so it still is under the tab, because we want the
* rendering of a gap in the middle of a tabpanel. This is the role of
* the gints gap_{l,r}_offset. On the contrary, if the tab is the
* first, we align the start border of the box_gap with the start
* border of the tab (left if LTR, right if RTL), by setting the
* appropriate offset to 0.*/
gint gap_loffset, gap_roffset, gap_voffset, gap_height;
/* Get height needed by the gap */
gap_height = moz_gtk_get_tab_thickness();
/* Extract gap_voffset from the first bits of flags */
gap_voffset = flags & MOZ_GTK_TAB_MARGIN_MASK;
if (gap_voffset > gap_height)
gap_voffset = gap_height;
/* Set gap_{l,r}_offset to appropriate values */
gap_loffset = gap_roffset = 20; /* should be enough */
if (flags & MOZ_GTK_TAB_FIRST) {
if (direction == GTK_TEXT_DIR_RTL)
gap_roffset = initial_gap;
else
gap_loffset = initial_gap;
}
if (flags & MOZ_GTK_TAB_BOTTOM) {
/* Draw the tab on bottom */
focusRect.y += gap_voffset;
focusRect.height -= gap_voffset;
gtk_render_extension(style, cr,
tabRect.x, tabRect.y + gap_voffset, tabRect.width,
tabRect.height - gap_voffset, GTK_POS_TOP);
gtk_style_context_remove_region(style, GTK_STYLE_REGION_TAB);
backRect.y += (gap_voffset - gap_height);
backRect.height = gap_height;
/* Draw the gap; erase with background color before painting in
* case theme does not */
gtk_render_background(style, cr, backRect.x, backRect.y,
backRect.width, backRect.height);
cairo_save(cr);
cairo_rectangle(cr, backRect.x, backRect.y, backRect.width, backRect.height);
cairo_clip(cr);
gtk_render_frame_gap(style, cr,
tabRect.x - gap_loffset,
tabRect.y + gap_voffset - 3 * gap_height,
tabRect.width + gap_loffset + gap_roffset,
3 * gap_height, GTK_POS_BOTTOM,
gap_loffset, gap_loffset + tabRect.width);
cairo_restore(cr);
} else {
/* Draw the tab on top */
focusRect.height -= gap_voffset;
gtk_render_extension(style, cr,
tabRect.x, tabRect.y, tabRect.width,
tabRect.height - gap_voffset, GTK_POS_BOTTOM);
gtk_style_context_remove_region(style, GTK_STYLE_REGION_TAB);
backRect.y += (tabRect.height - gap_voffset);
backRect.height = gap_height;
/* Draw the gap; erase with background color before painting in
* case theme does not */
gtk_render_background(style, cr, backRect.x, backRect.y,
backRect.width, backRect.height);
cairo_save(cr);
cairo_rectangle(cr, backRect.x, backRect.y, backRect.width, backRect.height);
cairo_clip(cr);
gtk_render_frame_gap(style, cr,
tabRect.x - gap_loffset,
tabRect.y + tabRect.height - gap_voffset,
tabRect.width + gap_loffset + gap_roffset,
3 * gap_height, GTK_POS_TOP,
gap_loffset, gap_loffset + tabRect.width);
cairo_restore(cr);
}
}
} else {
gtk_render_background(style, cr, tabRect.x, tabRect.y, tabRect.width, tabRect.height);
gtk_render_frame(style, cr, tabRect.x, tabRect.y, tabRect.width, tabRect.height);
}
gtk_style_context_restore(style);
if (state->focused) {
/* Paint the focus ring */
GtkBorder padding;
gtk_style_context_save(style);
moz_gtk_tab_prepare_style_context(style, flags);
gtk_style_context_get_padding(style, GetStateFlagsFromGtkWidgetState(state), &padding);
focusRect.x += padding.left;
focusRect.width -= (padding.left + padding.right);
focusRect.y += padding.top;
focusRect.height -= (padding.top + padding.bottom);
gtk_render_focus(style, cr,
focusRect.x, focusRect.y, focusRect.width, focusRect.height);
gtk_style_context_restore(style);
}
return MOZ_GTK_SUCCESS;
}
/* tab area*/
static gint
moz_gtk_tabpanels_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_tab_widget();
gtk_widget_set_direction(gTabWidget, direction);
style = gtk_widget_get_style_context(gTabWidget);
gtk_style_context_save(style);
gtk_render_background(style, cr, rect->x, rect->y,
rect->width, rect->height);
/*
* The gap size is not needed in moz_gtk_tabpanels_paint because
* the gap will be painted with the foreground tab in moz_gtk_tab_paint.
*
* However, if moz_gtk_tabpanels_paint just uses gtk_render_frame(),
* the theme will think that there are no tabs and may draw something
* different.Hence the trick of using two clip regions, and drawing the
* gap outside each clip region, to get the correct frame for
* a tabpanel with tabs.
*/
/* left side */
cairo_save(cr);
cairo_rectangle(cr, rect->x, rect->y,
rect->x + rect->width / 2,
rect->y + rect->height);
cairo_clip(cr);
gtk_render_frame_gap(style, cr,
rect->x, rect->y,
rect->width, rect->height,
GTK_POS_TOP, rect->width - 1, rect->width);
cairo_restore(cr);
/* right side */
cairo_save(cr);
cairo_rectangle(cr, rect->x + rect->width / 2, rect->y,
rect->x + rect->width,
rect->y + rect->height);
cairo_clip(cr);
gtk_render_frame_gap(style, cr,
rect->x, rect->y,
rect->width, rect->height,
GTK_POS_TOP, 0, 1);
cairo_restore(cr);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_tab_scroll_arrow_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkArrowType arrow_type,
GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext* style;
gdouble arrow_angle;
gint arrow_size = MIN(rect->width, rect->height);
gint x = rect->x + (rect->width - arrow_size) / 2;
gint y = rect->y + (rect->height - arrow_size) / 2;
ensure_tab_widget();
style = gtk_widget_get_style_context(gTabWidget);
gtk_style_context_save(style);
if (direction == GTK_TEXT_DIR_RTL) {
arrow_type = (arrow_type == GTK_ARROW_LEFT) ?
GTK_ARROW_RIGHT : GTK_ARROW_LEFT;
}
switch (arrow_type) {
case GTK_ARROW_LEFT:
arrow_angle = ARROW_LEFT;
break;
case GTK_ARROW_RIGHT:
arrow_angle = ARROW_RIGHT;
break;
case GTK_ARROW_DOWN:
arrow_angle = ARROW_DOWN;
break;
default:
arrow_angle = ARROW_UP;
break;
}
if (arrow_type != GTK_ARROW_NONE) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_NOTEBOOK); /* TODO TEST */
gtk_style_context_set_state(style, state_flags);
gtk_render_arrow(style, cr, arrow_angle,
x, y, arrow_size);
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_menu_bar_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_menu_bar_widget();
gtk_widget_set_direction(gMenuBarWidget, direction);
style = gtk_widget_get_style_context(gMenuBarWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENUBAR);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_menu_popup_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
ensure_menu_popup_widget();
gtk_widget_set_direction(gMenuPopupWidget, direction);
// Draw a backing toplevel. This fixes themes that don't provide a menu
// background, and depend on the GtkMenu's implementation window to provide it.
moz_gtk_window_paint(cr, rect, direction);
style = gtk_widget_get_style_context(gMenuPopupWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENU);
gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
// See gtk_menu_item_draw() for reference.
static gint
moz_gtk_menu_separator_paint(cairo_t *cr, GdkRectangle* rect,
GtkTextDirection direction)
{
GtkStyleContext* style;
gboolean wide_separators;
gint separator_height;
guint border_width;
gint x, y, w;
GtkBorder padding;
ensure_menu_separator_widget();
gtk_widget_set_direction(gMenuSeparatorWidget, direction);
border_width = gtk_container_get_border_width(GTK_CONTAINER(gMenuSeparatorWidget));
style = gtk_widget_get_style_context(gMenuSeparatorWidget);
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
x = rect->x + border_width;
y = rect->y + border_width;
w = rect->width - border_width * 2;
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_SEPARATOR);
gtk_style_context_get_style(style,
"wide-separators", &wide_separators,
"separator-height", &separator_height,
NULL);
if (wide_separators) {
gtk_render_frame(style, cr,
x + padding.left,
y + padding.top,
w - padding.left - padding.right,
separator_height);
} else {
gtk_render_line(style, cr,
x + padding.left,
y + padding.top,
x + w - padding.right - 1,
y + padding.top);
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
// See gtk_menu_item_draw() for reference.
static gint
moz_gtk_menu_item_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gint flags, GtkTextDirection direction)
{
GtkStyleContext* style;
GtkWidget* item_widget;
guint border_width;
gint x, y, w, h;
if (state->inHover && !state->disabled) {
if (flags & MOZ_TOPLEVEL_MENU_ITEM) {
ensure_menu_bar_item_widget();
item_widget = gMenuBarItemWidget;
} else {
ensure_menu_item_widget();
item_widget = gMenuItemWidget;
}
style = gtk_widget_get_style_context(item_widget);
if (flags & MOZ_TOPLEVEL_MENU_ITEM) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENUBAR);
}
gtk_widget_set_direction(item_widget, direction);
gtk_style_context_set_state(style, GetStateFlagsFromGtkWidgetState(state));
border_width = gtk_container_get_border_width(GTK_CONTAINER(item_widget));
x = rect->x + border_width;
y = rect->y + border_width;
w = rect->width - border_width * 2;
h = rect->height - border_width * 2;
gtk_render_background(style, cr, x, y, w, h);
gtk_render_frame(style, cr, x, y, w, h);
if (flags & MOZ_TOPLEVEL_MENU_ITEM) {
gtk_style_context_remove_class(style, GTK_STYLE_CLASS_MENUBAR);
}
gtk_style_context_set_state(style, GTK_STATE_FLAG_NORMAL);
}
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_menu_arrow_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
GtkTextDirection direction)
{
GtkStyleContext* style;
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
ensure_menu_item_widget();
gtk_widget_set_direction(gMenuItemWidget, direction);
style = gtk_widget_get_style_context(gMenuItemWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENUITEM);
gtk_style_context_set_state(style, state_flags);
gtk_render_arrow(style, cr,
(direction == GTK_TEXT_DIR_LTR) ? ARROW_RIGHT : ARROW_LEFT,
rect->x, rect->y, rect->width);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
// See gtk_real_check_menu_item_draw_indicator() for reference.
static gint
moz_gtk_check_menu_item_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state,
gboolean checked, gboolean isradio,
GtkTextDirection direction)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext* style;
GtkBorder padding;
gint offset;
gint indicator_size, horizontal_padding;
gint x, y;
moz_gtk_menu_item_paint(cr, rect, state, FALSE, direction);
ensure_check_menu_item_widget();
gtk_widget_set_direction(gCheckMenuItemWidget, direction);
style = gtk_widget_get_style_context(gCheckMenuItemWidget);
gtk_style_context_save(style);
gtk_style_context_get_style(style,
"indicator-size", &indicator_size,
"horizontal-padding", &horizontal_padding,
NULL);
if (isradio) {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_RADIO);
} else {
gtk_style_context_add_class(style, GTK_STYLE_CLASS_CHECK);
}
if (checked) {
state_flags = static_cast<GtkStateFlags>(state_flags|checkbox_check_state);
}
gtk_style_context_set_state(style, state_flags);
gtk_style_context_get_padding(style, state_flags, &padding);
offset = gtk_container_get_border_width(GTK_CONTAINER(gCheckMenuItemWidget)) +
padding.left + 2;
if (direction == GTK_TEXT_DIR_RTL) {
x = rect->width - indicator_size - offset - horizontal_padding;
}
else {
x = rect->x + offset + horizontal_padding;
}
y = rect->y + (rect->height - indicator_size) / 2;
if (isradio) {
gtk_render_option(style, cr, x, y, indicator_size, indicator_size);
} else {
gtk_render_check(style, cr, x, y, indicator_size, indicator_size);
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_info_bar_paint(cairo_t *cr, GdkRectangle* rect,
GtkWidgetState* state)
{
GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state);
GtkStyleContext *style;
ensure_info_bar();
style = gtk_widget_get_style_context(gInfoBar);
gtk_style_context_save(style);
gtk_style_context_set_state(style, state_flags);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_INFO);
gtk_render_background(style, cr, rect->x, rect->y, rect->width,
rect->height);
gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
static void
moz_gtk_add_style_border(GtkStyleContext* style,
gint* left, gint* top, gint* right, gint* bottom)
{
GtkBorder border;
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
*left += border.left;
*right += border.right;
*top += border.top;
*bottom += border.bottom;
}
static void
moz_gtk_add_style_padding(GtkStyleContext* style,
gint* left, gint* top, gint* right, gint* bottom)
{
GtkBorder padding;
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
*left += padding.left;
*right += padding.right;
*top += padding.top;
*bottom += padding.bottom;
}
gint
moz_gtk_get_widget_border(WidgetNodeType widget, gint* left, gint* top,
gint* right, gint* bottom, GtkTextDirection direction,
gboolean inhtml)
{
GtkWidget* w;
GtkStyleContext* style;
*left = *top = *right = *bottom = 0;
switch (widget) {
case MOZ_GTK_BUTTON:
case MOZ_GTK_TOOLBAR_BUTTON:
{
ensure_button_widget();
style = gtk_widget_get_style_context(gButtonWidget);
*left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(gButtonWidget));
if (widget == MOZ_GTK_TOOLBAR_BUTTON) {
gtk_style_context_save(style);
gtk_style_context_add_class(style, "image-button");
}
moz_gtk_add_style_padding(style, left, top, right, bottom);
if (widget == MOZ_GTK_TOOLBAR_BUTTON)
gtk_style_context_restore(style);
// XXX: Subtract 1 pixel from the border to account for the added
// -moz-focus-inner border (Bug 1228281).
*left -= 1; *top -= 1; *right -= 1; *bottom -= 1;
moz_gtk_add_style_border(style, left, top, right, bottom);
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_ENTRY:
{
ensure_entry_widget();
style = gtk_widget_get_style_context(gEntryWidget);
// XXX: Subtract 1 pixel from the padding to account for the default
// padding in forms.css. See bug 1187385.
*left = *top = *right = *bottom = -1;
moz_gtk_add_style_padding(style, left, top, right, bottom);
moz_gtk_add_style_border(style, left, top, right, bottom);
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_TEXT_VIEW:
case MOZ_GTK_TREEVIEW:
{
ensure_scrolled_window_widget();
style = gtk_widget_get_style_context(gScrolledWindowWidget);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_FRAME);
moz_gtk_add_style_border(style, left, top, right, bottom);
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_TREE_HEADER_CELL:
{
/* A Tree Header in GTK is just a different styled button
* It must be placed in a TreeView for getting the correct style
* assigned.
* That is why the following code is the same as for MOZ_GTK_BUTTON.
* */
ensure_tree_header_cell_widget();
*left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(gTreeHeaderCellWidget));
style = gtk_widget_get_style_context(gTreeHeaderCellWidget);
moz_gtk_add_style_border(style, left, top, right, bottom);
moz_gtk_add_style_padding(style, left, top, right, bottom);
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_TREE_HEADER_SORTARROW:
ensure_tree_header_cell_widget();
w = gTreeHeaderSortArrowWidget;
break;
case MOZ_GTK_DROPDOWN_ENTRY:
ensure_combo_box_entry_widgets();
w = gComboBoxEntryTextareaWidget;
break;
case MOZ_GTK_DROPDOWN_ARROW:
ensure_combo_box_entry_widgets();
w = gComboBoxEntryButtonWidget;
break;
case MOZ_GTK_DROPDOWN:
{
/* We need to account for the arrow on the dropdown, so text
* doesn't come too close to the arrow, or in some cases spill
* into the arrow. */
gboolean wide_separators;
gint separator_width;
GtkRequisition arrow_req;
GtkBorder border;
ensure_combo_box_widgets();
*left = *top = *right = *bottom =
gtk_container_get_border_width(GTK_CONTAINER(gComboBoxButtonWidget));
style = gtk_widget_get_style_context(gComboBoxButtonWidget);
moz_gtk_add_style_padding(style, left, top, right, bottom);
moz_gtk_add_style_border(style, left, top, right, bottom);
/* If there is no separator, don't try to count its width. */
separator_width = 0;
if (gComboBoxSeparatorWidget) {
style = gtk_widget_get_style_context(gComboBoxSeparatorWidget);
gtk_style_context_get_style(style,
"wide-separators", &wide_separators,
"separator-width", &separator_width,
NULL);
if (!wide_separators) {
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
separator_width = border.left;
}
}
gtk_widget_get_preferred_size(gComboBoxArrowWidget, NULL, &arrow_req);
if (direction == GTK_TEXT_DIR_RTL)
*left += separator_width + arrow_req.width;
else
*right += separator_width + arrow_req.width;
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_TABPANELS:
ensure_tab_widget();
w = gTabWidget;
break;
case MOZ_GTK_PROGRESSBAR:
ensure_progress_widget();
w = gProgressWidget;
break;
case MOZ_GTK_SPINBUTTON_ENTRY:
case MOZ_GTK_SPINBUTTON_UP:
case MOZ_GTK_SPINBUTTON_DOWN:
ensure_spin_widget();
w = gSpinWidget;
break;
case MOZ_GTK_SCALE_HORIZONTAL:
ensure_scale_widget();
w = gHScaleWidget;
break;
case MOZ_GTK_SCALE_VERTICAL:
ensure_scale_widget();
w = gVScaleWidget;
break;
case MOZ_GTK_FRAME:
ensure_frame_widget();
w = gFrameWidget;
break;
case MOZ_GTK_CHECKBUTTON_CONTAINER:
case MOZ_GTK_RADIOBUTTON_CONTAINER:
{
if (widget == MOZ_GTK_CHECKBUTTON_CONTAINER) {
ensure_checkbox_widget();
w = gCheckboxWidget;
} else {
ensure_radiobutton_widget();
w = gRadiobuttonWidget;
}
style = gtk_widget_get_style_context(w);
*left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(w));
moz_gtk_add_style_border(style,
left, top, right, bottom);
moz_gtk_add_style_padding(style,
left, top, right, bottom);
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_MENUPOPUP:
ensure_menu_popup_widget();
w = gMenuPopupWidget;
break;
case MOZ_GTK_MENUITEM:
case MOZ_GTK_CHECKMENUITEM:
case MOZ_GTK_RADIOMENUITEM:
{
if (widget == MOZ_GTK_MENUITEM) {
ensure_menu_item_widget();
ensure_menu_bar_item_widget();
w = gMenuItemWidget;
}
else {
ensure_check_menu_item_widget();
w = gCheckMenuItemWidget;
}
*left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(w));
moz_gtk_add_style_padding(gtk_widget_get_style_context(w),
left, top, right, bottom);
return MOZ_GTK_SUCCESS;
}
case MOZ_GTK_INFO_BAR:
ensure_info_bar();
w = gInfoBar;
break;
/* These widgets have no borders, since they are not containers. */
case MOZ_GTK_CHECKBUTTON_LABEL:
case MOZ_GTK_RADIOBUTTON_LABEL:
case MOZ_GTK_SPLITTER_HORIZONTAL:
case MOZ_GTK_SPLITTER_VERTICAL:
case MOZ_GTK_CHECKBUTTON:
case MOZ_GTK_RADIOBUTTON:
case MOZ_GTK_SCROLLBAR_BUTTON:
case MOZ_GTK_SCROLLBAR_HORIZONTAL:
case MOZ_GTK_SCROLLBAR_VERTICAL:
case MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL:
case MOZ_GTK_SCROLLBAR_THUMB_VERTICAL:
case MOZ_GTK_SCALE_THUMB_HORIZONTAL:
case MOZ_GTK_SCALE_THUMB_VERTICAL:
case MOZ_GTK_GRIPPER:
case MOZ_GTK_PROGRESS_CHUNK:
case MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE:
case MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE:
case MOZ_GTK_TREEVIEW_EXPANDER:
case MOZ_GTK_TOOLBAR_SEPARATOR:
case MOZ_GTK_MENUSEPARATOR:
/* These widgets have no borders.*/
case MOZ_GTK_SPINBUTTON:
case MOZ_GTK_TOOLTIP:
case MOZ_GTK_WINDOW:
case MOZ_GTK_RESIZER:
case MOZ_GTK_MENUARROW:
case MOZ_GTK_TOOLBARBUTTON_ARROW:
case MOZ_GTK_TOOLBAR:
case MOZ_GTK_MENUBAR:
case MOZ_GTK_TAB_SCROLLARROW:
return MOZ_GTK_SUCCESS;
default:
g_warning("Unsupported widget type: %d", widget);
return MOZ_GTK_UNKNOWN_WIDGET;
}
/* TODO - we're still missing some widget implementations */
if (w) {
moz_gtk_add_style_border(gtk_widget_get_style_context(w),
left, top, right, bottom);
}
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_tab_border(gint* left, gint* top, gint* right, gint* bottom,
GtkTextDirection direction, GtkTabFlags flags)
{
GtkStyleContext* style;
int tab_curvature;
ensure_tab_widget();
style = gtk_widget_get_style_context(gTabWidget);
gtk_style_context_save(style);
moz_gtk_tab_prepare_style_context(style, flags);
*left = *top = *right = *bottom = 0;
moz_gtk_add_style_padding(style, left, top, right, bottom);
gtk_style_context_get_style(style, "tab-curvature", &tab_curvature, NULL);
*left += tab_curvature;
*right += tab_curvature;
if (flags & MOZ_GTK_TAB_FIRST) {
int initial_gap;
gtk_style_context_get_style(style, "initial-gap", &initial_gap, NULL);
if (direction == GTK_TEXT_DIR_RTL)
*right += initial_gap;
else
*left += initial_gap;
}
gtk_style_context_restore(style);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_combo_box_entry_button_size(gint* width, gint* height)
{
/*
* We get the requisition of the drop down button, which includes
* all padding, border and focus line widths the button uses,
* as well as the minimum arrow size and its padding
* */
GtkRequisition requisition;
ensure_combo_box_entry_widgets();
gtk_widget_get_preferred_size(gComboBoxEntryButtonWidget, NULL, &requisition);
*width = requisition.width;
*height = requisition.height;
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_tab_scroll_arrow_size(gint* width, gint* height)
{
gint arrow_size;
ensure_tab_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gTabWidget),
"scroll-arrow-hlength", &arrow_size,
NULL);
*height = *width = arrow_size;
return MOZ_GTK_SUCCESS;
}
void
moz_gtk_get_arrow_size(WidgetNodeType widgetType, gint* width, gint* height)
{
GtkWidget* widget;
switch (widgetType) {
case MOZ_GTK_DROPDOWN:
ensure_combo_box_widgets();
widget = gComboBoxArrowWidget;
break;
default:
ensure_button_arrow_widget();
widget = gButtonArrowWidget;
break;
}
GtkRequisition requisition;
gtk_widget_get_preferred_size(widget, NULL, &requisition);
*width = requisition.width;
*height = requisition.height;
}
gint
moz_gtk_get_toolbar_separator_width(gint* size)
{
gboolean wide_separators;
gint separator_width;
GtkStyleContext* style;
GtkBorder border;
ensure_toolbar_widget();
style = gtk_widget_get_style_context(gToolbarWidget);
gtk_style_context_get_style(style,
"space-size", size,
"wide-separators", &wide_separators,
"separator-width", &separator_width,
NULL);
/* Just in case... */
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
*size = MAX(*size, (wide_separators ? separator_width : border.left));
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_expander_size(gint* size)
{
ensure_expander_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gExpanderWidget),
"expander-size", size,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_treeview_expander_size(gint* size)
{
ensure_tree_view_widget();
gtk_style_context_get_style(gtk_widget_get_style_context(gTreeViewWidget),
"expander-size", size,
NULL);
return MOZ_GTK_SUCCESS;
}
// See gtk_menu_item_draw() for reference.
gint
moz_gtk_get_menu_separator_height(gint *size)
{
gboolean wide_separators;
gint separator_height;
GtkBorder padding;
GtkStyleContext* style;
guint border_width;
ensure_menu_separator_widget();
border_width = gtk_container_get_border_width(GTK_CONTAINER(gMenuSeparatorWidget));
style = gtk_widget_get_style_context(gMenuSeparatorWidget);
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
gtk_style_context_save(style);
gtk_style_context_add_class(style, GTK_STYLE_CLASS_SEPARATOR);
gtk_style_context_get_style(style,
"wide-separators", &wide_separators,
"separator-height", &separator_height,
NULL);
gtk_style_context_restore(style);
*size = padding.top + padding.bottom + border_width*2;
*size += (wide_separators) ? separator_height : 1;
return MOZ_GTK_SUCCESS;
}
void
moz_gtk_get_entry_min_height(gint* height)
{
ensure_entry_widget();
GtkStyleContext* style = gtk_widget_get_style_context(gEntryWidget);
if (!gtk_check_version(3, 20, 0)) {
gtk_style_context_get(style, gtk_style_context_get_state(style),
"min-height", height,
nullptr);
} else {
*height = 0;
}
GtkBorder border;
GtkBorder padding;
gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border);
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
*height += (border.top + border.bottom + padding.top + padding.bottom);
}
void
moz_gtk_get_scale_metrics(GtkOrientation orient, gint* scale_width,
gint* scale_height)
{
gint thumb_length, thumb_height, trough_border;
GtkWidget* widget = orient == GTK_ORIENTATION_HORIZONTAL ?
gHScaleWidget : gVScaleWidget;
moz_gtk_get_scalethumb_metrics(orient, &thumb_length, &thumb_height);
gtk_style_context_get_style(gtk_widget_get_style_context(widget),
"trough-border", &trough_border, NULL);
if (orient == GTK_ORIENTATION_HORIZONTAL) {
*scale_width = thumb_length + trough_border * 2;
*scale_height = thumb_height + trough_border * 2;
} else {
*scale_width = thumb_height + trough_border * 2;
*scale_height = thumb_length + trough_border * 2;
}
}
gint
moz_gtk_get_scalethumb_metrics(GtkOrientation orient, gint* thumb_length, gint* thumb_height)
{
GtkWidget* widget;
ensure_scale_widget();
widget = ((orient == GTK_ORIENTATION_HORIZONTAL) ? gHScaleWidget : gVScaleWidget);
gtk_style_context_get_style(gtk_widget_get_style_context(widget),
"slider_length", thumb_length,
"slider_width", thumb_height,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_get_scrollbar_metrics(MozGtkScrollbarMetrics *metrics)
{
GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_VERTICAL);
gtk_style_context_get_style(style,
"slider_width", &metrics->slider_width,
"trough_border", &metrics->trough_border,
"stepper_size", &metrics->stepper_size,
"stepper_spacing", &metrics->stepper_spacing,
"min-slider-length", &metrics->min_slider_size,
nullptr);
ReleaseStyleContext(style);
if(!gtk_check_version(3, 20, 0)) {
style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_THUMB_VERTICAL);
gtk_style_context_get(style, gtk_style_context_get_state(style),
"min-height", &metrics->min_slider_size, nullptr);
ReleaseStyleContext(style);
}
return MOZ_GTK_SUCCESS;
}
gboolean
moz_gtk_images_in_menus()
{
gboolean result;
GtkSettings* settings;
ensure_image_menu_item_widget();
settings = gtk_widget_get_settings(gImageMenuItemWidget);
g_object_get(settings, "gtk-menu-images", &result, NULL);
return result;
}
gboolean
moz_gtk_images_in_buttons()
{
gboolean result;
GtkSettings* settings;
ensure_button_widget();
settings = gtk_widget_get_settings(gButtonWidget);
g_object_get(settings, "gtk-button-images", &result, NULL);
return result;
}
/* cairo_t *cr argument has to be a system-cairo. */
gint
moz_gtk_widget_paint(WidgetNodeType widget, cairo_t *cr,
GdkRectangle* rect,
GtkWidgetState* state, gint flags,
GtkTextDirection direction)
{
/* A workaround for https://bugzilla.gnome.org/show_bug.cgi?id=694086
*/
cairo_new_path(cr);
switch (widget) {
case MOZ_GTK_BUTTON:
case MOZ_GTK_TOOLBAR_BUTTON:
if (state->depressed) {
ensure_toggle_button_widget();
return moz_gtk_button_paint(cr, rect, state,
(GtkReliefStyle) flags,
gToggleButtonWidget, direction);
}
ensure_button_widget();
return moz_gtk_button_paint(cr, rect, state,
(GtkReliefStyle) flags, gButtonWidget,
direction);
break;
case MOZ_GTK_CHECKBUTTON:
case MOZ_GTK_RADIOBUTTON:
return moz_gtk_toggle_paint(cr, rect, state,
!!(flags & MOZ_GTK_WIDGET_CHECKED),
!!(flags & MOZ_GTK_WIDGET_INCONSISTENT),
(widget == MOZ_GTK_RADIOBUTTON),
direction);
break;
case MOZ_GTK_SCROLLBAR_BUTTON:
return moz_gtk_scrollbar_button_paint(cr, rect, state,
(GtkScrollbarButtonFlags) flags,
direction);
break;
case MOZ_GTK_SCROLLBAR_HORIZONTAL:
case MOZ_GTK_SCROLLBAR_VERTICAL:
return moz_gtk_scrollbar_trough_paint(widget, cr, rect,
state,
(GtkScrollbarTrackFlags) flags,
direction);
break;
case MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL:
case MOZ_GTK_SCROLLBAR_THUMB_VERTICAL:
return moz_gtk_scrollbar_thumb_paint(widget, cr, rect,
state, direction);
break;
case MOZ_GTK_SCALE_HORIZONTAL:
case MOZ_GTK_SCALE_VERTICAL:
return moz_gtk_scale_paint(cr, rect, state,
(GtkOrientation) flags, direction);
break;
case MOZ_GTK_SCALE_THUMB_HORIZONTAL:
case MOZ_GTK_SCALE_THUMB_VERTICAL:
return moz_gtk_scale_thumb_paint(cr, rect, state,
(GtkOrientation) flags, direction);
break;
case MOZ_GTK_SPINBUTTON:
return moz_gtk_spin_paint(cr, rect, direction);
break;
case MOZ_GTK_SPINBUTTON_UP:
case MOZ_GTK_SPINBUTTON_DOWN:
return moz_gtk_spin_updown_paint(cr, rect,
(widget == MOZ_GTK_SPINBUTTON_DOWN),
state, direction);
break;
case MOZ_GTK_SPINBUTTON_ENTRY:
ensure_spin_widget();
return moz_gtk_entry_paint(cr, rect, state,
gSpinWidget, direction);
break;
case MOZ_GTK_GRIPPER:
return moz_gtk_gripper_paint(cr, rect, state,
direction);
break;
case MOZ_GTK_TREEVIEW:
return moz_gtk_treeview_paint(cr, rect, state,
direction);
break;
case MOZ_GTK_TREE_HEADER_CELL:
return moz_gtk_tree_header_cell_paint(cr, rect, state,
flags, direction);
break;
case MOZ_GTK_TREE_HEADER_SORTARROW:
return moz_gtk_tree_header_sort_arrow_paint(cr, rect,
state,
(GtkArrowType) flags,
direction);
break;
case MOZ_GTK_TREEVIEW_EXPANDER:
return moz_gtk_treeview_expander_paint(cr, rect, state,
(GtkExpanderStyle) flags, direction);
break;
case MOZ_GTK_ENTRY:
ensure_entry_widget();
return moz_gtk_entry_paint(cr, rect, state,
gEntryWidget, direction);
break;
case MOZ_GTK_TEXT_VIEW:
return moz_gtk_text_view_paint(cr, rect, state, direction);
break;
case MOZ_GTK_DROPDOWN:
return moz_gtk_combo_box_paint(cr, rect, state, direction);
break;
case MOZ_GTK_DROPDOWN_ARROW:
return moz_gtk_combo_box_entry_button_paint(cr, rect,
state, flags, direction);
break;
case MOZ_GTK_DROPDOWN_ENTRY:
ensure_combo_box_entry_widgets();
return moz_gtk_entry_paint(cr, rect, state,
gComboBoxEntryTextareaWidget, direction);
break;
case MOZ_GTK_CHECKBUTTON_CONTAINER:
case MOZ_GTK_RADIOBUTTON_CONTAINER:
return moz_gtk_container_paint(cr, rect, state,
(widget == MOZ_GTK_RADIOBUTTON_CONTAINER),
direction);
break;
case MOZ_GTK_CHECKBUTTON_LABEL:
case MOZ_GTK_RADIOBUTTON_LABEL:
return moz_gtk_toggle_label_paint(cr, rect, state,
(widget == MOZ_GTK_RADIOBUTTON_LABEL),
direction);
break;
case MOZ_GTK_TOOLBAR:
return moz_gtk_toolbar_paint(cr, rect, direction);
break;
case MOZ_GTK_TOOLBAR_SEPARATOR:
return moz_gtk_toolbar_separator_paint(cr, rect,
direction);
break;
case MOZ_GTK_TOOLTIP:
return moz_gtk_tooltip_paint(cr, rect, direction);
break;
case MOZ_GTK_FRAME:
return moz_gtk_frame_paint(cr, rect, direction);
break;
case MOZ_GTK_RESIZER:
return moz_gtk_resizer_paint(cr, rect, state,
direction);
break;
case MOZ_GTK_PROGRESSBAR:
return moz_gtk_progressbar_paint(cr, rect, direction);
break;
case MOZ_GTK_PROGRESS_CHUNK:
case MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE:
case MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE:
return moz_gtk_progress_chunk_paint(cr, rect,
direction, widget);
break;
case MOZ_GTK_TAB:
return moz_gtk_tab_paint(cr, rect, state,
(GtkTabFlags) flags, direction);
break;
case MOZ_GTK_TABPANELS:
return moz_gtk_tabpanels_paint(cr, rect, direction);
break;
case MOZ_GTK_TAB_SCROLLARROW:
return moz_gtk_tab_scroll_arrow_paint(cr, rect, state,
(GtkArrowType) flags, direction);
break;
case MOZ_GTK_MENUBAR:
return moz_gtk_menu_bar_paint(cr, rect, direction);
break;
case MOZ_GTK_MENUPOPUP:
return moz_gtk_menu_popup_paint(cr, rect, direction);
break;
case MOZ_GTK_MENUSEPARATOR:
return moz_gtk_menu_separator_paint(cr, rect,
direction);
break;
case MOZ_GTK_MENUITEM:
return moz_gtk_menu_item_paint(cr, rect, state, flags,
direction);
break;
case MOZ_GTK_MENUARROW:
return moz_gtk_menu_arrow_paint(cr, rect, state,
direction);
break;
case MOZ_GTK_TOOLBARBUTTON_ARROW:
return moz_gtk_arrow_paint(cr, rect, state,
(GtkArrowType) flags, direction);
break;
case MOZ_GTK_CHECKMENUITEM:
case MOZ_GTK_RADIOMENUITEM:
return moz_gtk_check_menu_item_paint(cr, rect, state,
(gboolean) flags,
(widget == MOZ_GTK_RADIOMENUITEM),
direction);
break;
case MOZ_GTK_SPLITTER_HORIZONTAL:
return moz_gtk_vpaned_paint(cr, rect, state);
break;
case MOZ_GTK_SPLITTER_VERTICAL:
return moz_gtk_hpaned_paint(cr, rect, state);
break;
case MOZ_GTK_WINDOW:
return moz_gtk_window_paint(cr, rect, direction);
break;
case MOZ_GTK_INFO_BAR:
return moz_gtk_info_bar_paint(cr, rect, state);
break;
default:
g_warning("Unknown widget type: %d", widget);
}
return MOZ_GTK_UNKNOWN_WIDGET;
}
GtkWidget* moz_gtk_get_scrollbar_widget(void)
{
return GetWidget(MOZ_GTK_SCROLLBAR_HORIZONTAL);
}
gboolean moz_gtk_has_scrollbar_buttons(void)
{
gboolean backward, forward, secondary_backward, secondary_forward;
MOZ_ASSERT(is_initialized, "Forgot to call moz_gtk_init()");
GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_VERTICAL);
gtk_style_context_get_style(style,
"has-backward-stepper", &backward,
"has-forward-stepper", &forward,
"has-secondary-backward-stepper", &secondary_backward,
"has-secondary-forward-stepper", &secondary_forward,
NULL);
ReleaseStyleContext(style);
return backward | forward | secondary_forward | secondary_forward;
}
gint
moz_gtk_shutdown()
{
if (gTooltipWidget)
gtk_widget_destroy(gTooltipWidget);
/* This will destroy all of our widgets */
ResetWidgetCache();
/* TODO - replace it with appropriate widget */
if (gTreeHeaderSortArrowWidget)
gtk_widget_destroy(gTreeHeaderSortArrowWidget);
gProtoWindow = NULL;
gProtoLayout = NULL;
gButtonWidget = NULL;
gToggleButtonWidget = NULL;
gButtonArrowWidget = NULL;
gCheckboxWidget = NULL;
gRadiobuttonWidget = NULL;
gSpinWidget = NULL;
gHScaleWidget = NULL;
gVScaleWidget = NULL;
gEntryWidget = NULL;
gComboBoxWidget = NULL;
gComboBoxButtonWidget = NULL;
gComboBoxSeparatorWidget = NULL;
gComboBoxArrowWidget = NULL;
gComboBoxEntryWidget = NULL;
gComboBoxEntryButtonWidget = NULL;
gComboBoxEntryArrowWidget = NULL;
gComboBoxEntryTextareaWidget = NULL;
gHandleBoxWidget = NULL;
gToolbarWidget = NULL;
gFrameWidget = NULL;
gProgressWidget = NULL;
gTabWidget = NULL;
gTextViewWidget = nullptr;
gTooltipWidget = NULL;
gMenuBarWidget = NULL;
gMenuBarItemWidget = NULL;
gMenuPopupWidget = NULL;
gMenuItemWidget = NULL;
gImageMenuItemWidget = NULL;
gCheckMenuItemWidget = NULL;
gTreeViewWidget = NULL;
gMiddleTreeViewColumn = NULL;
gTreeHeaderCellWidget = NULL;
gTreeHeaderSortArrowWidget = NULL;
gExpanderWidget = NULL;
gToolbarSeparatorWidget = NULL;
gMenuSeparatorWidget = NULL;
gHPanedWidget = NULL;
gVPanedWidget = NULL;
gScrolledWindowWidget = NULL;
is_initialized = FALSE;
return MOZ_GTK_SUCCESS;
}
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