mirror of
https://github.com/libretro/scummvm.git
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347 lines
8.3 KiB
C++
347 lines
8.3 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2002-2006 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#include "common/stdafx.h"
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#include "gui/newgui.h"
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#include "gui/dialog.h"
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#include "gui/widget.h"
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#include "gui/PopUpWidget.h"
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#include "common/system.h"
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namespace GUI {
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/*
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* TODO list
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* - add some sense of the window being "active" (i.e. in front) or not. If it
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* was inactive and just became active, reset certain vars (like who is focused).
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* Maybe we should just add lostFocus and receivedFocus methods to Dialog, just
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* like we have for class Widget?
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* ...
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*/
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Dialog::Dialog(int x, int y, int w, int h, bool dimsInactive_)
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: GuiObject(x, y, w, h),
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_mouseWidget(0), _focusedWidget(0), _dragWidget(0), _visible(false), _drawingHints(0),
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_dimsInactive(dimsInactive_) {
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_drawingHints = THEME_HINT_FIRST_DRAW | THEME_HINT_SAVE_BACKGROUND;
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}
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Dialog::Dialog(Common::String name, bool dimsInactive_)
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: GuiObject(name),
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_mouseWidget(0), _focusedWidget(0), _dragWidget(0), _visible(false), _drawingHints(0),
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_dimsInactive(dimsInactive_) {
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_drawingHints = THEME_HINT_FIRST_DRAW | THEME_HINT_SAVE_BACKGROUND;
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}
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Dialog::~Dialog() {
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delete _firstWidget;
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_firstWidget = 0;
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}
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int Dialog::runModal() {
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// Open up
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open();
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// Start processing events
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g_gui.runLoop();
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// Return the result code
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return _result;
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}
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void Dialog::open() {
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Widget *w = _firstWidget;
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_result = 0;
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_visible = true;
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g_gui.openDialog(this);
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// Search for the first objects that wantsFocus() (if any) and give it the focus
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while (w && !w->wantsFocus()) {
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w = w->_next;
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}
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if (w) {
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w->receivedFocus();
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_focusedWidget = w;
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}
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}
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void Dialog::close() {
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_visible = false;
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g_gui.closeTopDialog();
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if (_mouseWidget) {
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_mouseWidget->handleMouseLeft(0);
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_mouseWidget = 0;
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}
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releaseFocus();
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}
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void Dialog::handleScreenChanged() {
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// The screen has changed. That means the screen visual may also have
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// changed, so any cached image may be invalid. The subsequent redraw
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// should be treated as the very first draw.
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_drawingHints |= THEME_HINT_FIRST_DRAW;
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Widget *w = _firstWidget;
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while (w) {
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w->handleScreenChanged();
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w->setHints(THEME_HINT_FIRST_DRAW);
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w = w->_next;
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}
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GuiObject::handleScreenChanged();
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}
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void Dialog::releaseFocus() {
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if (_focusedWidget) {
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_focusedWidget->lostFocus();
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_focusedWidget = 0;
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}
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}
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void Dialog::draw() {
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g_gui._needRedraw = true;
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}
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void Dialog::drawDialog() {
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if (!isVisible())
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return;
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g_gui.theme()->drawDialogBackground(Common::Rect(_x, _y, _x+_w, _y+_h), _drawingHints);
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_drawingHints &= ~THEME_HINT_FIRST_DRAW;
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// Draw all children
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Widget *w = _firstWidget;
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while (w) {
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w->draw();
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w = w->_next;
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}
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}
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void Dialog::handleMouseDown(int x, int y, int button, int clickCount) {
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Widget *w;
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w = findWidget(x, y);
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_dragWidget = w;
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// If the click occured inside a widget which is not the currently
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// focused one, change the focus to that widget.
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if (w && w != _focusedWidget && w->wantsFocus()) {
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// The focus will change. Tell the old focused widget (if any)
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// that it lost the focus.
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releaseFocus();
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// Tell the new focused widget (if any) that it just gained the focus.
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if (w)
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w->receivedFocus();
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_focusedWidget = w;
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}
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if (w)
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w->handleMouseDown(x - (w->getAbsX() - _x), y - (w->getAbsY() - _y), button, clickCount);
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}
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void Dialog::handleMouseUp(int x, int y, int button, int clickCount) {
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Widget *w;
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if (_focusedWidget) {
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//w = _focusedWidget;
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// Lose focus on mouseup unless the widget requested to retain the focus
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if (! (_focusedWidget->getFlags() & WIDGET_RETAIN_FOCUS )) {
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releaseFocus();
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}
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}
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w = _dragWidget;
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if (w)
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w->handleMouseUp(x - (w->getAbsX() - _x), y - (w->getAbsY() - _y), button, clickCount);
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_dragWidget = 0;
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}
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void Dialog::handleMouseWheel(int x, int y, int direction) {
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Widget *w;
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// This may look a bit backwards, but I think it makes more sense for
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// the mouse wheel to primarily affect the widget the mouse is at than
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// the widget that happens to be focused.
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w = findWidget(x, y);
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if (!w)
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w = _focusedWidget;
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if (w)
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w->handleMouseWheel(x, y, direction);
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}
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void Dialog::handleKeyDown(uint16 ascii, int keycode, int modifiers) {
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if (_focusedWidget) {
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if (_focusedWidget->handleKeyDown(ascii, keycode, modifiers))
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return;
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}
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// Hotkey handling
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if (ascii != 0) {
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Widget *w = _firstWidget;
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ascii = toupper(ascii);
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while (w) {
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if (w->_type == kButtonWidget && ascii == toupper(((ButtonWidget *)w)->_hotkey)) {
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// The hotkey for widget w was pressed. We fake a mouse click into the
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// button by invoking the appropriate methods.
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w->handleMouseDown(0, 0, 1, 1);
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w->handleMouseUp(0, 0, 1, 1);
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return;
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}
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w = w->_next;
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}
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}
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// ESC closes all dialogs by default
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if (keycode == 27) {
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setResult(-1);
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close();
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}
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// TODO: tab/shift-tab should focus the next/previous focusable widget
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}
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void Dialog::handleKeyUp(uint16 ascii, int keycode, int modifiers) {
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// Focused widget receives keyup events
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if (_focusedWidget)
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_focusedWidget->handleKeyUp(ascii, keycode, modifiers);
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}
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void Dialog::handleMouseMoved(int x, int y, int button) {
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Widget *w;
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//if (!button)
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// _dragWidget = 0;
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if (_focusedWidget && !_dragWidget) {
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w = _focusedWidget;
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int wx = w->getAbsX() - _x;
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int wy = w->getAbsY() - _y;
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// We still send mouseEntered/Left messages to the focused item
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// (but to no other items).
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bool mouseInFocusedWidget = (x >= wx && x < wx + w->_w && y >= wy && y < wy + w->_h);
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if (mouseInFocusedWidget && _mouseWidget != w) {
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if (_mouseWidget)
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_mouseWidget->handleMouseLeft(button);
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_mouseWidget = w;
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w->handleMouseEntered(button);
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} else if (!mouseInFocusedWidget && _mouseWidget == w) {
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_mouseWidget = 0;
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w->handleMouseLeft(button);
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}
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w->handleMouseMoved(x - wx, y - wy, button);
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}
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// While a "drag" is in process (i.e. mouse is moved while a button is pressed),
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// only deal with the widget in which the click originated.
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if (_dragWidget)
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w = _dragWidget;
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else
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w = findWidget(x, y);
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if (_mouseWidget != w) {
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if (_mouseWidget)
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_mouseWidget->handleMouseLeft(button);
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if (w)
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w->handleMouseEntered(button);
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_mouseWidget = w;
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}
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if (w && (w->getFlags() & WIDGET_TRACK_MOUSE)) {
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w->handleMouseMoved(x - (w->getAbsX() - _x), y - (w->getAbsY() - _y), button);
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}
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}
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void Dialog::handleTickle() {
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// Focused widget receives tickle notifications
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if (_focusedWidget && _focusedWidget->getFlags() & WIDGET_WANT_TICKLE) {
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_focusedWidget->handleTickle();
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}
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}
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void Dialog::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
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switch (cmd) {
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case kCloseCmd:
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close();
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break;
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}
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}
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/*
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* Determine the widget at location (x,y) if any. Assumes the coordinates are
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* in the local coordinate system, i.e. relative to the top left of the dialog.
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*/
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Widget *Dialog::findWidget(int x, int y) {
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return Widget::findWidgetInChain(_firstWidget, x, y);
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}
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Widget *Dialog::findWidget(const char *name) {
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return Widget::findWidgetInChain(_firstWidget, name);
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}
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void Dialog::deleteWidget(Widget *del) {
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Widget *w = _firstWidget;
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if (del == _firstWidget) {
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_firstWidget = _firstWidget->_next;
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return;
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}
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w = _firstWidget;
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while (w) {
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if (w->_next == del) {
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w->_next = w->_next->_next;
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return;
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}
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w = w->_next;
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}
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}
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ButtonWidget *Dialog::addButton(GuiObject *boss, int x, int y, const Common::String &label, uint32 cmd, char hotkey, WidgetSize ws) {
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int w = kButtonWidth;
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int h = kButtonHeight;
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if (ws == kBigWidgetSize) {
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w = kBigButtonWidth;
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h = kBigButtonHeight;
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}
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return new ButtonWidget(boss, x, y, w, h, label, cmd, hotkey, ws);
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}
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uint32 GuiObject::getMillis() {
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return g_system->getMillis();
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}
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} // End of namespace GUI
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