gecko-dev/widget/qt/nsNativeThemeQt.cpp
Birunthan Mohanathas e77ee4df1a Bug 784739 - Switch from NULL to nullptr in widget/os2/; r=ehsan
--HG--
extra : rebase_source : c6afd8bd171364431280c8e69f406e36ebc5b523
2013-10-08 14:47:49 -04:00

683 lines
22 KiB
C++

/* 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/. */
#include <QApplication>
#include <QStyle>
#include <QPalette>
#include <QRect>
#include <QPainter>
#include <QStyleOption>
#include <QStyleOptionFrameV2>
#include <QStyleOptionButton>
#include <QFlags>
#include <QStyleOptionComboBox>
#include "nsIFrame.h"
#include "nsCoord.h"
#include "nsNativeThemeQt.h"
#include "nsPresContext.h"
#include "nsRect.h"
#include "nsSize.h"
#include "nsTransform2D.h"
#include "nsThemeConstants.h"
#include "nsIServiceManager.h"
#include "nsIDOMHTMLInputElement.h"
#include "gfxASurface.h"
#include "gfxContext.h"
#include "gfxQtPlatform.h"
#include "gfxQPainterSurface.h"
#ifdef MOZ_X11
#include "gfxXlibSurface.h"
#endif
#include "nsRenderingContext.h"
nsNativeThemeQt::nsNativeThemeQt()
{
mNoBackgroundPalette.setColor(QPalette::Window, Qt::transparent);
ThemeChanged();
}
nsNativeThemeQt::~nsNativeThemeQt()
{
}
NS_IMPL_ISUPPORTS_INHERITED1(nsNativeThemeQt, nsNativeTheme, nsITheme)
static inline QRect qRectInPixels(const nsRect &aRect,
const int32_t p2a)
{
return QRect(NSAppUnitsToIntPixels(aRect.x, p2a),
NSAppUnitsToIntPixels(aRect.y, p2a),
NSAppUnitsToIntPixels(aRect.width, p2a),
NSAppUnitsToIntPixels(aRect.height, p2a));
}
static inline QImage::Format
_qimage_from_gfximage_format (gfxImageFormat aFormat)
{
switch (aFormat) {
case gfxImageFormatARGB32:
return QImage::Format_ARGB32_Premultiplied;
case gfxImageFormatRGB24:
return QImage::Format_RGB32;
case gfxImageFormatRGB16_565:
return QImage::Format_RGB16;
case gfxImageFormatA8:
return QImage::Format_Indexed8;
case gfxImageFormatA1:
#ifdef WORDS_BIGENDIAN
return QImage::Format_Mono;
#else
return QImage::Format_MonoLSB;
#endif
default:
return QImage::Format_Invalid;
}
return QImage::Format_Mono;
}
NS_IMETHODIMP
nsNativeThemeQt::DrawWidgetBackground(nsRenderingContext* aContext,
nsIFrame* aFrame,
uint8_t aWidgetType,
const nsRect& aRect,
const nsRect& aClipRect)
{
gfxContext* context = aContext->ThebesContext();
nsRefPtr<gfxASurface> surface = context->CurrentSurface();
#ifdef CAIRO_HAS_QT_SURFACE
if (surface->GetType() == gfxSurfaceTypeQPainter) {
gfxQPainterSurface* qSurface = (gfxQPainterSurface*) (surface.get());
QPainter *painter = qSurface->GetQPainter();
NS_ASSERTION(painter, "Where'd my QPainter go?");
if (!painter)
return NS_ERROR_FAILURE;
return DrawWidgetBackground(painter, aContext,
aFrame, aWidgetType,
aRect, aClipRect);
} else
#endif
if (surface->GetType() == gfxSurfaceTypeImage) {
gfxImageSurface* qSurface = (gfxImageSurface*) (surface.get());
QImage tempQImage(qSurface->Data(),
qSurface->Width(),
qSurface->Height(),
qSurface->Stride(),
_qimage_from_gfximage_format(qSurface->Format()));
QPainter painter(&tempQImage);
return DrawWidgetBackground(&painter, aContext,
aFrame, aWidgetType,
aRect, aClipRect);
}
#if defined(MOZ_X11) && defined(Q_WS_X11)
else if (surface->GetType() == gfxSurfaceTypeXlib) {
gfxXlibSurface* qSurface = (gfxXlibSurface*) (surface.get());
QPixmap pixmap(QPixmap::fromX11Pixmap(qSurface->XDrawable()));
QPainter painter(&pixmap);
return DrawWidgetBackground(&painter, aContext,
aFrame, aWidgetType,
aRect, aClipRect);
}
#endif
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsNativeThemeQt::DrawWidgetBackground(QPainter *qPainter,
nsRenderingContext* aContext,
nsIFrame* aFrame,
uint8_t aWidgetType,
const nsRect& aRect,
const nsRect& aClipRect)
{
gfxContext* context = aContext->ThebesContext();
nsRefPtr<gfxASurface> surface = context->CurrentSurface();
context->UpdateSurfaceClip();
QStyle* style = qApp->style();
qPainter->save();
gfxPoint offs = surface->GetDeviceOffset();
qPainter->translate(offs.x, offs.y);
gfxMatrix ctm = context->CurrentMatrix();
if (!ctm.HasNonTranslation()) {
ctm.x0 = NSToCoordRound(ctm.x0);
ctm.y0 = NSToCoordRound(ctm.y0);
}
QMatrix qctm(ctm.xx, ctm.yx, ctm.xy, ctm.yy, ctm.x0, ctm.y0);
qPainter->setWorldMatrix(qctm, true);
int32_t p2a = aContext->AppUnitsPerDevPixel();
QRect r = qRectInPixels(aRect, p2a);
QRect cr = qRectInPixels(aClipRect, p2a);
QStyle::State extraFlags = QStyle::State_None;
switch (aWidgetType) {
case NS_THEME_RADIO:
case NS_THEME_CHECKBOX: {
QStyleOptionButton opt;
InitButtonStyle (aWidgetType, aFrame, r, opt);
if (aWidgetType == NS_THEME_CHECKBOX)
{
style->drawPrimitive (QStyle::PE_IndicatorCheckBox, &opt, qPainter);
} else {
style->drawPrimitive (QStyle::PE_IndicatorRadioButton, &opt, qPainter);
}
break;
}
case NS_THEME_BUTTON:
case NS_THEME_BUTTON_BEVEL: {
QStyleOptionButton opt;
InitButtonStyle (aWidgetType, aFrame, r, opt);
if (aWidgetType == NS_THEME_BUTTON) {
style->drawPrimitive(QStyle::PE_PanelButtonCommand, &opt, qPainter);
if (IsDefaultButton(aFrame))
style->drawPrimitive(QStyle::PE_FrameDefaultButton, &opt, qPainter);
} else {
style->drawPrimitive(QStyle::PE_PanelButtonBevel, &opt, qPainter);
style->drawPrimitive(QStyle::PE_FrameButtonBevel, &opt, qPainter);
}
break;
}
case NS_THEME_SCROLLBAR: {
qPainter->fillRect(r, qApp->palette().brush(QPalette::Normal, QPalette::Window));
break;
}
case NS_THEME_SCROLLBAR_TRACK_HORIZONTAL: {
qPainter->fillRect(r, qApp->palette().brush(QPalette::Active, QPalette::Window));
break;
}
case NS_THEME_SCROLLBAR_TRACK_VERTICAL: {
qPainter->fillRect(r, qApp->palette().brush(QPalette::Active, QPalette::Window));
break;
}
case NS_THEME_SCROLLBAR_BUTTON_LEFT: {
QStyleOptionSlider opt;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)opt, QStyle::State_Horizontal);
opt.orientation = Qt::Horizontal;
style->drawControl(QStyle::CE_ScrollBarSubLine, &opt, qPainter, nullptr);
break;
}
case NS_THEME_SCROLLBAR_BUTTON_RIGHT: {
QStyleOptionSlider opt;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)opt, QStyle::State_Horizontal);
opt.orientation = Qt::Horizontal;
style->drawControl(QStyle::CE_ScrollBarAddLine, &opt, qPainter, nullptr);
break;
}
case NS_THEME_SCROLLBAR_BUTTON_UP: {
QStyleOptionSlider opt;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)opt);
opt.orientation = Qt::Vertical;
style->drawControl(QStyle::CE_ScrollBarSubLine, &opt, qPainter, nullptr);
break;
}
case NS_THEME_SCROLLBAR_BUTTON_DOWN: {
QStyleOptionSlider opt;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)opt);
opt.orientation = Qt::Vertical;
style->drawControl(QStyle::CE_ScrollBarAddLine, &opt, qPainter, nullptr);
break;
}
case NS_THEME_SCROLLBAR_THUMB_HORIZONTAL: {
extraFlags |= QStyle::State_Horizontal;
QStyleOptionSlider option;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)option, extraFlags);
option.orientation = Qt::Horizontal;
style->drawControl(QStyle::CE_ScrollBarSlider, &option, qPainter, nullptr);
break;
}
case NS_THEME_SCROLLBAR_THUMB_VERTICAL: {
QStyleOptionSlider option;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)option, extraFlags);
option.orientation = Qt::Vertical;
style->drawControl(QStyle::CE_ScrollBarSlider, &option, qPainter, nullptr);
break;
}
case NS_THEME_DROPDOWN: {
QStyleOptionComboBox comboOpt;
InitComboStyle(aWidgetType, aFrame, r, comboOpt);
style->drawComplexControl(QStyle::CC_ComboBox, &comboOpt, qPainter);
break;
}
case NS_THEME_DROPDOWN_BUTTON: {
QStyleOptionComboBox option;
InitComboStyle(aWidgetType, aFrame, r, option);
style->drawPrimitive(QStyle::PE_FrameDefaultButton, &option, qPainter);
style->drawPrimitive(QStyle::PE_IndicatorSpinDown, &option, qPainter);
break;
}
case NS_THEME_DROPDOWN_TEXT:
case NS_THEME_DROPDOWN_TEXTFIELD:
case NS_THEME_TEXTFIELD:
case NS_THEME_TEXTFIELD_MULTILINE:
case NS_THEME_LISTBOX: {
QStyleOptionFrameV2 frameOpt;
nsEventStates eventState = GetContentState(aFrame, aWidgetType);
if (!IsDisabled(aFrame, eventState))
frameOpt.state |= QStyle::State_Enabled;
frameOpt.rect = r;
frameOpt.features = QStyleOptionFrameV2::Flat;
if (aWidgetType == NS_THEME_TEXTFIELD || aWidgetType == NS_THEME_TEXTFIELD_MULTILINE) {
QRect contentRect = style->subElementRect(QStyle::SE_LineEditContents, &frameOpt);
contentRect.adjust(mFrameWidth, mFrameWidth, -mFrameWidth, -mFrameWidth);
qPainter->fillRect(contentRect, QBrush(Qt::white));
}
frameOpt.palette = mNoBackgroundPalette;
style->drawPrimitive(QStyle::PE_FrameLineEdit, &frameOpt, qPainter, nullptr);
break;
}
case NS_THEME_MENUPOPUP: {
QStyleOptionMenuItem option;
InitPlainStyle(aWidgetType, aFrame, r, (QStyleOption&)option, extraFlags);
style->drawPrimitive(QStyle::PE_FrameMenu, &option, qPainter, nullptr);
break;
}
default:
break;
}
qPainter->restore();
return NS_OK;
}
NS_IMETHODIMP
nsNativeThemeQt::GetWidgetBorder(nsDeviceContext* ,
nsIFrame* aFrame,
uint8_t aWidgetType,
nsIntMargin* aResult)
{
(*aResult).top = (*aResult).bottom = (*aResult).left = (*aResult).right = 0;
QStyle* style = qApp->style();
switch(aWidgetType) {
// case NS_THEME_TEXTFIELD:
// case NS_THEME_LISTBOX:
case NS_THEME_MENUPOPUP: {
(*aResult).top = (*aResult).bottom = (*aResult).left = (*aResult).right = style->pixelMetric(QStyle::PM_MenuPanelWidth);
break;
}
default:
break;
}
return NS_OK;
}
bool
nsNativeThemeQt::GetWidgetPadding(nsDeviceContext* ,
nsIFrame*, uint8_t aWidgetType,
nsIntMargin* aResult)
{
// XXX: Where to get padding values, framewidth?
if (aWidgetType == NS_THEME_TEXTFIELD ||
aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||
aWidgetType == NS_THEME_DROPDOWN) {
aResult->SizeTo(2, 2, 2, 2);
return true;
}
return false;
}
NS_IMETHODIMP
nsNativeThemeQt::GetMinimumWidgetSize(nsRenderingContext* aContext, nsIFrame* aFrame,
uint8_t aWidgetType,
nsIntSize* aResult, bool* aIsOverridable)
{
(*aResult).width = (*aResult).height = 0;
*aIsOverridable = true;
QStyle *s = qApp->style();
int32_t p2a = aContext->AppUnitsPerDevPixel();
switch (aWidgetType) {
case NS_THEME_RADIO:
case NS_THEME_CHECKBOX: {
nsRect frameRect = aFrame->GetRect();
QRect qRect = qRectInPixels(frameRect, p2a);
QStyleOptionButton option;
InitButtonStyle(aWidgetType, aFrame, qRect, option);
QRect rect = s->subElementRect(
(aWidgetType == NS_THEME_CHECKBOX) ?
QStyle::SE_CheckBoxIndicator :
QStyle::SE_RadioButtonIndicator,
&option,
nullptr);
(*aResult).width = rect.width();
(*aResult).height = rect.height();
break;
}
case NS_THEME_BUTTON: {
nsRect frameRect = aFrame->GetRect();
QRect qRect = qRectInPixels(frameRect, p2a);
QStyleOptionButton option;
InitButtonStyle(aWidgetType, aFrame, qRect, option);
QRect rect = s->subElementRect(
QStyle::SE_PushButtonFocusRect,
&option,
nullptr);
(*aResult).width = rect.width();
(*aResult).height = rect.height();
break;
}
case NS_THEME_SCROLLBAR_BUTTON_UP:
case NS_THEME_SCROLLBAR_BUTTON_DOWN: {
(*aResult).width = s->pixelMetric(QStyle::PM_ScrollBarExtent);
(*aResult).height = (*aResult).width;
//*aIsOverridable = false;
break;
}
case NS_THEME_SCROLLBAR_BUTTON_LEFT:
case NS_THEME_SCROLLBAR_BUTTON_RIGHT: {
(*aResult).height = s->pixelMetric(QStyle::PM_ScrollBarExtent);
(*aResult).width = (*aResult).height;
//*aIsOverridable = false;
break;
}
case NS_THEME_SCROLLBAR_THUMB_VERTICAL: {
(*aResult).width = s->pixelMetric(QStyle::PM_ScrollBarExtent);
(*aResult).height = s->pixelMetric(QStyle::PM_ScrollBarSliderMin);
//*aIsOverridable = false;
break;
}
case NS_THEME_SCROLLBAR_THUMB_HORIZONTAL: {
(*aResult).width = s->pixelMetric(QStyle::PM_ScrollBarSliderMin);
(*aResult).height = s->pixelMetric(QStyle::PM_ScrollBarExtent);
//*aIsOverridable = false;
break;
}
case NS_THEME_SCROLLBAR_TRACK_VERTICAL: {
(*aResult).width = s->pixelMetric(QStyle::PM_ScrollBarExtent);
(*aResult).height = s->pixelMetric(QStyle::PM_SliderLength);
break;
}
case NS_THEME_SCROLLBAR_TRACK_HORIZONTAL: {
(*aResult).width = s->pixelMetric(QStyle::PM_SliderLength);
(*aResult).height = s->pixelMetric(QStyle::PM_ScrollBarExtent);
break;
}
case NS_THEME_DROPDOWN_BUTTON: {
QStyleOptionComboBox comboOpt;
nsRect frameRect = aFrame->GetRect();
QRect qRect = qRectInPixels(frameRect, p2a);
comboOpt.rect = qRect;
InitComboStyle(aWidgetType, aFrame, qRect, comboOpt);
QRect subRect = s->subControlRect(QStyle::CC_ComboBox, &comboOpt,
QStyle::SC_ComboBoxArrow, nullptr);
(*aResult).width = subRect.width();
(*aResult).height = subRect.height();
//*aIsOverridable = false;
break;
}
case NS_THEME_DROPDOWN: {
QStyleOptionComboBox comboOpt;
nsRect frameRect = aFrame->GetRect();
QRect qRect = qRectInPixels(frameRect, p2a);
comboOpt.rect = qRect;
InitComboStyle(aWidgetType, aFrame, qRect, comboOpt);
QRect subRect = s->subControlRect(QStyle::CC_ComboBox,
&comboOpt,
QStyle::SC_ComboBoxFrame,
nullptr);
(*aResult).width = subRect.width();
(*aResult).height = subRect.height();
//*aIsOverridable = false;
break;
}
case NS_THEME_DROPDOWN_TEXT: {
QStyleOptionComboBox comboOpt;
nsRect frameRect = aFrame->GetRect();
QRect qRect = qRectInPixels(frameRect, p2a);
comboOpt.rect = qRect;
QRect subRect = s->subControlRect(QStyle::CC_ComboBox, &comboOpt,
QStyle::SC_ComboBoxEditField, nullptr);
(*aResult).width = subRect.width();
(*aResult).height = subRect.height();
//*aIsOverridable = false;
break;
}
case NS_THEME_DROPDOWN_TEXTFIELD: {
QStyleOptionComboBox comboOpt;
nsRect frameRect = aFrame->GetRect();
QRect qRect = qRectInPixels(frameRect, p2a);
comboOpt.rect = qRect;
QRect subRect = s->subControlRect(QStyle::CC_ComboBox, &comboOpt,
QStyle::SC_ComboBoxArrow, nullptr);
QRect subRect2 = s->subControlRect(QStyle::CC_ComboBox, &comboOpt,
QStyle::SC_ComboBoxFrame, nullptr);
(*aResult).width = subRect.width() + subRect2.width();
(*aResult).height = std::max(subRect.height(), subRect2.height());
//*aIsOverridable = false;
break;
}
case NS_THEME_TEXTFIELD:
case NS_THEME_TEXTFIELD_MULTILINE:
break;
}
return NS_OK;
}
NS_IMETHODIMP
nsNativeThemeQt::WidgetStateChanged(nsIFrame* aFrame, uint8_t aWidgetType,
nsIAtom* aAttribute, bool* aShouldRepaint)
{
*aShouldRepaint = true;
return NS_OK;
}
NS_IMETHODIMP
nsNativeThemeQt::ThemeChanged()
{
QStyle *s = qApp->style();
if (s)
mFrameWidth = s->pixelMetric(QStyle::PM_DefaultFrameWidth);
return NS_OK;
}
bool
nsNativeThemeQt::ThemeSupportsWidget(nsPresContext* aPresContext,
nsIFrame* aFrame,
uint8_t aWidgetType)
{
switch (aWidgetType) {
case NS_THEME_SCROLLBAR:
case NS_THEME_SCROLLBAR_BUTTON_UP:
case NS_THEME_SCROLLBAR_BUTTON_DOWN:
case NS_THEME_SCROLLBAR_BUTTON_LEFT:
case NS_THEME_SCROLLBAR_BUTTON_RIGHT:
case NS_THEME_SCROLLBAR_THUMB_HORIZONTAL:
case NS_THEME_SCROLLBAR_THUMB_VERTICAL:
//case NS_THEME_SCROLLBAR_GRIPPER_HORIZONTAL:
//case NS_THEME_SCROLLBAR_GRIPPER_VERTICAL:
case NS_THEME_SCROLLBAR_TRACK_HORIZONTAL:
case NS_THEME_SCROLLBAR_TRACK_VERTICAL:
case NS_THEME_RADIO:
case NS_THEME_CHECKBOX:
case NS_THEME_BUTTON_BEVEL:
case NS_THEME_BUTTON:
case NS_THEME_DROPDOWN:
case NS_THEME_DROPDOWN_BUTTON:
case NS_THEME_DROPDOWN_TEXT:
case NS_THEME_DROPDOWN_TEXTFIELD:
case NS_THEME_TEXTFIELD:
case NS_THEME_TEXTFIELD_MULTILINE:
case NS_THEME_LISTBOX:
case NS_THEME_MENUPOPUP:
return !IsWidgetStyled(aPresContext, aFrame, aWidgetType);
default:
break;
}
return false;
}
bool
nsNativeThemeQt::WidgetIsContainer(uint8_t aWidgetType)
{
// if (aWidgetType == NS_THEME_DROPDOWN_BUTTON ||
// aWidgetType == NS_THEME_RADIO ||
// aWidgetType == NS_THEME_CHECKBOX) {
// return false;
// }
return true;
}
bool
nsNativeThemeQt::ThemeDrawsFocusForWidget(uint8_t aWidgetType)
{
if (aWidgetType == NS_THEME_DROPDOWN ||
aWidgetType == NS_THEME_BUTTON ||
aWidgetType == NS_THEME_TREEVIEW_HEADER_CELL) {
return true;
}
return false;
}
bool
nsNativeThemeQt::ThemeNeedsComboboxDropmarker()
{
return true;
}
void
nsNativeThemeQt::InitButtonStyle(uint8_t aWidgetType,
nsIFrame* aFrame,
QRect rect,
QStyleOptionButton &opt)
{
nsEventStates eventState = GetContentState(aFrame, aWidgetType);
opt.rect = rect;
opt.palette = mNoBackgroundPalette;
bool isDisabled = IsDisabled(aFrame, eventState);
if (!isDisabled)
opt.state |= QStyle::State_Enabled;
if (eventState.HasState(NS_EVENT_STATE_HOVER))
opt.state |= QStyle::State_MouseOver;
if (eventState.HasState(NS_EVENT_STATE_FOCUS))
opt.state |= QStyle::State_HasFocus;
if (!isDisabled && eventState.HasState(NS_EVENT_STATE_ACTIVE))
// Don't allow sunken when disabled
opt.state |= QStyle::State_Sunken;
switch (aWidgetType) {
case NS_THEME_RADIO:
case NS_THEME_CHECKBOX:
if (IsChecked(aFrame))
opt.state |= QStyle::State_On;
else
opt.state |= QStyle::State_Off;
break;
default:
if (!eventState.HasState(NS_EVENT_STATE_ACTIVE))
opt.state |= QStyle::State_Raised;
break;
}
}
void
nsNativeThemeQt::InitPlainStyle(uint8_t aWidgetType,
nsIFrame* aFrame,
QRect rect,
QStyleOption &opt,
QStyle::State extraFlags)
{
nsEventStates eventState = GetContentState(aFrame, aWidgetType);
opt.rect = rect;
if (!IsDisabled(aFrame, eventState))
opt.state |= QStyle::State_Enabled;
if (eventState.HasState(NS_EVENT_STATE_HOVER))
opt.state |= QStyle::State_MouseOver;
if (eventState.HasState(NS_EVENT_STATE_FOCUS))
opt.state |= QStyle::State_HasFocus;
opt.state |= extraFlags;
}
void
nsNativeThemeQt::InitComboStyle(uint8_t aWidgetType,
nsIFrame* aFrame,
QRect rect,
QStyleOptionComboBox &opt)
{
nsEventStates eventState = GetContentState(aFrame, aWidgetType);
bool isDisabled = IsDisabled(aFrame, eventState);
if (!isDisabled)
opt.state |= QStyle::State_Enabled;
if (eventState.HasState(NS_EVENT_STATE_HOVER))
opt.state |= QStyle::State_MouseOver;
if (eventState.HasState(NS_EVENT_STATE_FOCUS))
opt.state |= QStyle::State_HasFocus;
if (!eventState.HasState(NS_EVENT_STATE_ACTIVE))
opt.state |= QStyle::State_Raised;
if (!isDisabled && eventState.HasState(NS_EVENT_STATE_ACTIVE))
// Don't allow sunken when disabled
opt.state |= QStyle::State_Sunken;
opt.rect = rect;
opt.palette = mNoBackgroundPalette;
}