aboutsummaryrefslogtreecommitdiff
path: root/gui/newgui.cpp
blob: 814387fff1d552e425e785135a6fda51469d6d66 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2002-2006 The ScummVM project
 *
 * 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/stdafx.h"
#include "common/system.h"
#include "common/util.h"
#include "gui/newgui.h"
#include "gui/dialog.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,
	kKeyRepeatInitialDelay = 400,
	kKeyRepeatSustainDelay = 100
};

#if defined(__SYMBIAN32__) // Testing: could be removed? Just making sure that an CVS update doesn't break my code :P
#define USE_AUTO_SCALING	false
#else
#define USE_AUTO_SCALING	false
#endif

// Constructor
NewGui::NewGui() : _needRedraw(false),
	_stateIsSaved(false), _cursorAnimateCounter(0), _cursorAnimateTimer(0) {

	_system = &OSystem::instance();

	// Clear the cursor
	memset(_cursor, 0xFF, sizeof(_cursor));

	// Reset key repeat
	_currentKeyDown.keycode = 0;

	ConfMan.registerDefault("gui_theme", "default-theme");
	Common::String style = ConfMan.get("gui_theme");
	if (scumm_stricmp(style.c_str(), "classic") == 0) {
		_theme = new ThemeClassic(_system);
	} else {
		_theme = new ThemeNew(_system, style.c_str());
	}
	assert(_theme);

	// Init the theme
	if (!_theme->init()) {
		warning("Could not initialize your preferred theme, falling back to classic style");
		delete _theme;
		_theme = new ThemeClassic(_system);
		assert(_theme);
		if (!_theme->init()) {
			error("Couldn't initialize classic theme");
		}
	}
	_theme->resetDrawArea();
}

void NewGui::runLoop() {
	Dialog *activeDialog = _dialogStack.top();
	bool didSaveState = false;
	int button;

	if (activeDialog == 0)
		return;

	if (!_stateIsSaved) {
		saveState();
		_theme->enable();
		didSaveState = true;
	}

	_theme->openDialog();

	while (!_dialogStack.empty() && activeDialog == _dialogStack.top()) {
		activeDialog->handleTickle();

		if (_needRedraw) {
			// Restore the overlay to its initial state, then draw all dialogs.
			// This is necessary to get the blending right.
			_theme->clearAll();

			int i;

			for (i = 0; i < _dialogStack.size(); ++i) {
				_theme->closeDialog();
			}
			for (i = 0; i < _dialogStack.size(); i++) {
				_theme->openDialog();
				_dialogStack[i]->drawDialog();
			}
			_needRedraw = false;
		}

		animateCursor();
		_theme->drawAll();
		_system->updateScreen();

		OSystem::Event event;
		uint32 time = _system->getMillis();

		while (_system->pollEvent(event)) {
			Common::Point mouse(event.mouse.x - activeDialog->_x, event.mouse.y - activeDialog->_y);
			
			switch (event.type) {
			case OSystem::EVENT_KEYDOWN:
#if !defined(PALMOS_MODE)
				// init continuous event stream
				// not done on PalmOS because keyboard is emulated and keyup is not generated
				_currentKeyDown.ascii = event.kbd.ascii;
				_currentKeyDown.keycode = event.kbd.keycode;
				_currentKeyDown.flags = event.kbd.flags;
				_keyRepeatTime = time + kKeyRepeatInitialDelay;
#endif
				activeDialog->handleKeyDown(event.kbd.ascii, event.kbd.keycode, event.kbd.flags);
				break;
			case OSystem::EVENT_KEYUP:
				activeDialog->handleKeyUp(event.kbd.ascii, event.kbd.keycode, event.kbd.flags);
				if (event.kbd.keycode == _currentKeyDown.keycode)
					// only stop firing events if it's the current key
					_currentKeyDown.keycode = 0;
				break;
			case OSystem::EVENT_MOUSEMOVE:
				activeDialog->handleMouseMoved(mouse.x, mouse.y, 0);
				break;
			// We don't distinguish between mousebuttons (for now at least)
			case OSystem::EVENT_LBUTTONDOWN:
			case OSystem::EVENT_RBUTTONDOWN:
				button = (event.type == OSystem::EVENT_LBUTTONDOWN ? 1 : 2);
				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 OSystem::EVENT_LBUTTONUP:
			case OSystem::EVENT_RBUTTONUP:
				button = (event.type == OSystem::EVENT_LBUTTONUP ? 1 : 2);
				activeDialog->handleMouseUp(mouse.x, mouse.y, button, _lastClick.count);
				break;
			case OSystem::EVENT_WHEELUP:
				activeDialog->handleMouseWheel(mouse.x, mouse.y, -1);
				break;
			case OSystem::EVENT_WHEELDOWN:
				activeDialog->handleMouseWheel(mouse.x, mouse.y, 1);
				break;
			case OSystem::EVENT_QUIT:
				_system->quit();
				return;
			case OSystem::EVENT_SCREEN_CHANGED:
				// reinit the whole theme
				_theme->refresh();
				_needRedraw = true;
				activeDialog->handleScreenChanged();
				break;
			}
		}

		// check if event should be sent again (keydown)
		if (_currentKeyDown.keycode != 0) {
			if (_keyRepeatTime < time) {
				// fire event
				activeDialog->handleKeyDown(_currentKeyDown.ascii, _currentKeyDown.keycode, _currentKeyDown.flags);
				_keyRepeatTime = time + kKeyRepeatSustainDelay;
			}
		}

		// Delay for a moment
		_system->delayMillis(10);
	}

	_theme->closeDialog();

	if (didSaveState) {
		restoreState();
		_theme->disable();
	}
}

#pragma mark -

void NewGui::saveState() {
	// Backup old cursor
	_oldCursorMode = _system->showMouse(true);

	_currentKeyDown.keycode = 0;
	_lastClick.x = _lastClick.y = 0;
	_lastClick.time = 0;
	_lastClick.count = 0;

	_stateIsSaved = true;
}

void NewGui::restoreState() {
	_system->showMouse(_oldCursorMode);

	_system->updateScreen();

	_stateIsSaved = false;
}

void NewGui::openDialog(Dialog *dialog) {
	_dialogStack.push(dialog);
	_needRedraw = true;
}

void NewGui::closeTopDialog() {
	// Don't do anything if no dialog is open
	if (_dialogStack.empty())
		return;

	// Remove the dialog from the stack
	_dialogStack.pop();
	_needRedraw = true;
}

//
// Draw the mouse cursor (animated). This is mostly ripped from the cursor code in gfx.cpp
// We could plug in a different cursor here if we like to.
//
void NewGui::animateCursor() {
	int time = _system->getMillis();
	if (time > _cursorAnimateTimer + kCursorAnimateDelay) {
		const byte colors[4] = { 15, 15, 7, 8 };
		const byte color = colors[_cursorAnimateCounter];
		int i;

		for (i = 0; i < 15; i++) {
			if ((i < 6) || (i > 8)) {
				_cursor[16 * 7 + i] = color;
				_cursor[16 * i + 7] = color;
			}
		}

		_system->setMouseCursor(_cursor, 16, 16, 7, 7);

		_cursorAnimateTimer = time;
		_cursorAnimateCounter = (_cursorAnimateCounter + 1) % 4;
	}
}

} // End of namespace GUI