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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#include "common/events.h"
#include "common/system.h"
#include "common/util.h"
#include "graphics/cursorman.h"
#include "gui/newgui.h"
#include "gui/dialog.h"
#include "gui/ThemeRenderer.h"
#include "common/config-manager.h"
DECLARE_SINGLETON(GUI::NewGui);
namespace GUI {
/*
* TODO list
* - add more widgets: edit field, popup, radio buttons, ...
*
* Other ideas:
* - allow multi line (l/c/r aligned) text via StaticTextWidget ?
* - add "close" widget to all dialogs (with a flag to turn it off) ?
* - make dialogs "moveable" ?
* - come up with a new look & feel / theme for the GUI
* - ...
*/
enum {
kDoubleClickDelay = 500, // milliseconds
kCursorAnimateDelay = 250
};
void GuiObject::reflowLayout() {
if (!_name.empty()) {
if (!g_gui.xmlEval()->getWidgetData(_name, _x, _y, _w, _h)) {
warning("Could not load widget position for '%s'", _name.c_str());
}
return;
if (_x < 0)
error("Widget <%s> has x < 0: %d", _name.c_str(), _x);
if (_x >= g_system->getOverlayWidth())
error("Widget <%s> has x > %d", _name.c_str(), g_system->getOverlayWidth());
if (_x + _w > g_system->getOverlayWidth())
error("Widget <%s> has x + w > %d (%d)", _name.c_str(), g_system->getOverlayWidth(), _x + _w);
if (_y < 0)
error("Widget <%s> has y < 0", _name.c_str());
if (_y >= g_system->getOverlayWidth())
error("Widget <%s> has y > %d", _name.c_str(), g_system->getOverlayHeight());
if (_y + _h > g_system->getOverlayWidth())
error("Widget <%s> has y + h > %d (%d)", _name.c_str(), g_system->getOverlayHeight(), _y + _h);
}
}
// Constructor
NewGui::NewGui() : _redrawStatus(kRedrawDisabled),
_stateIsSaved(false), _cursorAnimateCounter(0), _cursorAnimateTimer(0) {
_theme = 0;
_useStdCursor = false;
_system = g_system;
_lastScreenChangeID = _system->getScreenChangeID();
// Clear the cursor
memset(_cursor, 0xFF, sizeof(_cursor));
ConfMan.registerDefault("gui_theme", "default");
Common::String themefile(ConfMan.get("gui_theme"));
if (themefile.compareToIgnoreCase("default") == 0)
themefile = "builtin";
if (themefile != "builtin" && !themefile.hasSuffix(".zip"))
themefile += ".zip";
ConfMan.registerDefault("gui_renderer", 2);
ThemeRenderer::GraphicsMode gfxMode = (ThemeRenderer::GraphicsMode)ConfMan.getInt("gui_renderer");
loadNewTheme(themefile, gfxMode);
_themeChange = false;
}
NewGui::~NewGui() {
delete _theme;
}
bool NewGui::loadNewTheme(const Common::String &filename, ThemeRenderer::GraphicsMode gfx) {
if (_theme && filename == _theme->getThemeFileName() && gfx == _theme->getThemeRenderer())
return true;
Common::String oldTheme = (_theme != 0) ? _theme->getThemeFileName() : "";
if (gfx == ThemeRenderer::kGfxDisabled)
gfx = (ThemeRenderer::GraphicsMode)ConfMan.getInt("gui_renderer");
if (_theme)
_theme->disable();
if (_useStdCursor) {
CursorMan.popCursorPalette();
CursorMan.popCursor();
}
delete _theme;
_theme = 0;
_theme = new ThemeRenderer(filename, gfx);
if (!_theme)
return (!oldTheme.empty() ? loadNewTheme(oldTheme) : false);
_theme->init();
if (!oldTheme.empty())
screenChange();
_themeChange = true;
return true;
}
void NewGui::redraw() {
int i;
if (_redrawStatus == kRedrawDisabled)
return;
switch (_redrawStatus) {
case kRedrawCloseDialog:
case kRedrawFull:
case kRedrawTopDialog:
_theme->clearAll();
_theme->openDialog(true);
for (i = 0; i < _dialogStack.size() - 1; i++) {
_dialogStack[i]->drawDialog();
}
_theme->finishBuffering();
_theme->updateScreen();
case kRedrawOpenDialog:
_theme->openDialog(true, (Theme::ShadingStyle)xmlEval()->getVar("Dialog." + _dialogStack.top()->_name + ".Shading", 0));
_dialogStack.top()->drawDialog();
_theme->finishBuffering();
break;
default:
return;
}
_theme->updateScreen();
_redrawStatus = kRedrawDisabled;
}
Dialog *NewGui::getTopDialog() const {
if (_dialogStack.empty())
return 0;
return _dialogStack.top();
}
void NewGui::runLoop() {
Dialog *activeDialog = getTopDialog();
bool didSaveState = false;
int button;
uint32 time;
if (activeDialog == 0)
return;
if (!_stateIsSaved) {
saveState();
_theme->enable();
didSaveState = true;
_useStdCursor = !_theme->ownCursor();
if (_useStdCursor)
setupCursor();
}
Common::EventManager *eventMan = _system->getEventManager();
uint32 lastRedraw = 0;
const uint32 waitTime = 1000 / 45;
while (!_dialogStack.empty() && activeDialog == getTopDialog()) {
redraw();
// Don't "tickle" the dialog until the theme has had a chance
// to re-allocate buffers in case of a scaler change.
activeDialog->handleTickle();
if (_useStdCursor)
animateCursor();
// _theme->updateScreen();
// _system->updateScreen();
if (lastRedraw + waitTime < _system->getMillis()) {
_theme->updateScreen();
_system->updateScreen();
lastRedraw = _system->getMillis();
}
Common::Event event;
while (eventMan->pollEvent(event)) {
if (activeDialog != getTopDialog() && event.type != Common::EVENT_QUIT && event.type != Common::EVENT_SCREEN_CHANGED)
continue;
Common::Point mouse(event.mouse.x - activeDialog->_x, event.mouse.y - activeDialog->_y);
// HACK to change the cursor to the new themes one
if (_themeChange) {
_theme->enable();
_useStdCursor = !_theme->ownCursor();
if (_useStdCursor)
setupCursor();
_theme->refresh();
_themeChange = false;
_redrawStatus = kRedrawFull;
redraw();
}
if (lastRedraw + waitTime < _system->getMillis()) {
_theme->updateScreen();
_system->updateScreen();
lastRedraw = _system->getMillis();
}
switch (event.type) {
case Common::EVENT_KEYDOWN:
activeDialog->handleKeyDown(event.kbd);
break;
case Common::EVENT_KEYUP:
activeDialog->handleKeyUp(event.kbd);
break;
case Common::EVENT_MOUSEMOVE:
activeDialog->handleMouseMoved(mouse.x, mouse.y, 0);
break;
// We don't distinguish between mousebuttons (for now at least)
case Common::EVENT_LBUTTONDOWN:
case Common::EVENT_RBUTTONDOWN:
button = (event.type == Common::EVENT_LBUTTONDOWN ? 1 : 2);
time = _system->getMillis();
if (_lastClick.count && (time < _lastClick.time + kDoubleClickDelay)
&& ABS(_lastClick.x - event.mouse.x) < 3
&& ABS(_lastClick.y - event.mouse.y) < 3) {
_lastClick.count++;
} else {
_lastClick.x = event.mouse.x;
_lastClick.y = event.mouse.y;
_lastClick.count = 1;
}
_lastClick.time = time;
activeDialog->handleMouseDown(mouse.x, mouse.y, button, _lastClick.count);
break;
case Common::EVENT_LBUTTONUP:
case Common::EVENT_RBUTTONUP:
button = (event.type == Common::EVENT_LBUTTONUP ? 1 : 2);
activeDialog->handleMouseUp(mouse.x, mouse.y, button, _lastClick.count);
break;
case Common::EVENT_WHEELUP:
activeDialog->handleMouseWheel(mouse.x, mouse.y, -1);
break;
case Common::EVENT_WHEELDOWN:
activeDialog->handleMouseWheel(mouse.x, mouse.y, 1);
break;
case Common::EVENT_QUIT:
_system->quit();
return;
case Common::EVENT_SCREEN_CHANGED:
screenChange();
break;
default:
break;
}
}
// Delay for a moment
_system->delayMillis(10);
}
if (didSaveState) {
_theme->disable();
restoreState();
_useStdCursor = false;
}
}
#pragma mark -
void NewGui::saveState() {
// Backup old cursor
_lastClick.x = _lastClick.y = 0;
_lastClick.time = 0;
_lastClick.count = 0;
_stateIsSaved = true;
}
void NewGui::restoreState() {
if (_useStdCursor) {
CursorMan.popCursor();
CursorMan.popCursorPalette();
}
_system->updateScreen();
_stateIsSaved = false;
}
void NewGui::openDialog(Dialog *dialog) {
_dialogStack.push(dialog);
_redrawStatus = kRedrawOpenDialog;
// We reflow the dialog just before opening it. If the screen changed
// since the last time we looked, also refresh the loaded theme,
// and reflow all other open dialogs, too.
int tmpScreenChangeID = _system->getScreenChangeID();
if (_lastScreenChangeID != tmpScreenChangeID) {
_lastScreenChangeID = tmpScreenChangeID;
// reinit the whole theme
_theme->refresh();
// refresh all dialogs
for (int i = 0; i < _dialogStack.size(); ++i) {
_dialogStack[i]->reflowLayout();
}
} else {
dialog->reflowLayout();
}
}
void NewGui::closeTopDialog() {
// Don't do anything if no dialog is open
if (_dialogStack.empty())
return;
// Remove the dialog from the stack
_dialogStack.pop();
_redrawStatus = kRedrawCloseDialog;
}
void NewGui::setupCursor() {
const byte palette[] = {
255, 255, 255, 0,
255, 255, 255, 0,
171, 171, 171, 0,
87, 87, 87, 0
};
CursorMan.pushCursorPalette(palette, 0, 4);
CursorMan.pushCursor(NULL, 0, 0, 0, 0);
CursorMan.showMouse(true);
}
// Draw the mouse cursor (animated). This is pretty much the same as in old
// SCUMM games, but the code no longer resembles what we have in cursor.cpp
// very much. We could plug in a different cursor here if we like to.
void NewGui::animateCursor() {
int time = _system->getMillis();
if (time > _cursorAnimateTimer + kCursorAnimateDelay) {
for (int i = 0; i < 15; i++) {
if ((i < 6) || (i > 8)) {
_cursor[16 * 7 + i] = _cursorAnimateCounter;
_cursor[16 * i + 7] = _cursorAnimateCounter;
}
}
CursorMan.replaceCursor(_cursor, 16, 16, 7, 7);
_cursorAnimateTimer = time;
_cursorAnimateCounter = (_cursorAnimateCounter + 1) % 4;
}
}
WidgetSize NewGui::getWidgetSize() {
return (WidgetSize)(g_gui.xmlEval()->getVar("Globals.WidgetSize"));
}
void NewGui::clearDragWidget() {
if (!_dialogStack.empty())
_dialogStack.top()->_dragWidget = 0;
}
void NewGui::screenChange() {
_lastScreenChangeID = _system->getScreenChangeID();
// reinit the whole theme
_theme->refresh();
// refresh all dialogs
for (int i = 0; i < _dialogStack.size(); ++i) {
_dialogStack[i]->reflowLayout();
}
// We need to redraw immediately. Otherwise
// some other event may cause a widget to be
// redrawn before redraw() has been called.
_redrawStatus = kRedrawFull;
redraw();
}
} // End of namespace GUI
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