aboutsummaryrefslogtreecommitdiff
path: root/sword2/driver/menu.cpp
blob: 44b695dc86a2a59b2a1e7fc4f4ce2f5b6ae01e3c (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
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
/* Copyright (C) 1994-2004 Revolution Software Ltd
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header$
 */

#include "common/stdafx.h"
#include "sword2/sword2.h"
#include "sword2/driver/render.h"

namespace Sword2 {

#define MENUDEEP 40
#define MAXMENUANIMS 8

void Graphics::clearIconArea(int menu, int pocket, Common::Rect *r) {
	byte *dst;
	int i;

	r->top = menu * (RENDERDEEP + MENUDEEP) + (MENUDEEP - RDMENU_ICONDEEP) / 2;
	r->bottom = r->top + RDMENU_ICONDEEP;
	r->left = RDMENU_ICONSTART + pocket * (RDMENU_ICONWIDE + RDMENU_ICONSPACING);
	r->right = r->left + RDMENU_ICONWIDE;

	dst = _buffer + r->top * _screenWide + r->left;

	for (i = 0; i < RDMENU_ICONDEEP; i++) {
		memset(dst, 0, RDMENU_ICONWIDE);
		dst += _screenWide;
	}
}

/**
 * This function should be called regularly to process the menubar system. The
 * rate at which this function is called will dictate how smooth the menu
 * system is.
 */

void Graphics::processMenu(void) {
	byte *src, *dst;
	uint8 menu;
	uint8 i, j;
	uint8 complete;
	uint8 frameCount;
	int32 curx, xoff;
	int32 cury, yoff;
	Common::Rect r1, r2;
	int32 delta;
	static int32 lastTime = 0;

	if (lastTime == 0) {
		lastTime = _vm->_system->get_msecs();
		frameCount = 1;
	} else {
		delta = _vm->_system->get_msecs() - lastTime;
		if (delta > 250) {
			lastTime += delta;
			delta = 250;
			frameCount = 1;
		} else {
			frameCount = (uint8) ((_iconCount + 8) * delta / 750);
			lastTime += frameCount * 750 / (_iconCount + 8);
		}
	}

	while (frameCount-- > 0) {
		for (menu = RDMENU_TOP; menu <= RDMENU_BOTTOM; menu++) {
			if (_menuStatus[menu] == RDMENU_OPENING) {
				// The menu is opening, so process it here
				complete = 1;

				// Propagate the animation from the first icon.
				for (i = RDMENU_MAXPOCKETS - 1; i > 0; i--) {
					_pocketStatus[menu][i] = _pocketStatus[menu][i - 1];
					if (_pocketStatus[menu][i] != MAXMENUANIMS)
						complete = 0;
				}
				if (_pocketStatus[menu][i] != MAXMENUANIMS)
					complete = 0;

				// ... and animate the first icon
				if (_pocketStatus[menu][0] != MAXMENUANIMS)
					_pocketStatus[menu][0]++;

				// Check to see if the menu is fully open
				if (complete)
					_menuStatus[menu] = RDMENU_SHOWN;
			} else if (_menuStatus[menu] == RDMENU_CLOSING) {
				// The menu is closing, so process it here
				complete = 1;

				// Propagate the animation from the first icon.
				for (i = RDMENU_MAXPOCKETS - 1; i > 0; i--) {
					if (_icons[menu][i] && _pocketStatus[menu][i] != 0 && _pocketStatus[menu][i - 1] == 0) {
						clearIconArea(menu, i, &r1);
						updateRect(&r1);
					}

					_pocketStatus[menu][i] = _pocketStatus[menu][i - 1];
					if (_pocketStatus[menu][i] != 0)
						complete = 0;
				}
				if (_pocketStatus[menu][i] != 0)
					complete = 0;

				// ... and animate the first icon
				if (_pocketStatus[menu][0] != 0) {
					_pocketStatus[menu][0]--;

					if (_pocketStatus[menu][0] == 0) {
						clearIconArea(menu, 0, &r1);
						updateRect(&r1);
					}
				}

				// Check to see if the menu is fully closed
				if (complete)
					_menuStatus[menu] = RDMENU_HIDDEN;
			}
		}
	}
	
	// Does the menu need to be drawn?
	for (menu = RDMENU_TOP; menu <= RDMENU_BOTTOM; menu++) {
		if (_menuStatus[menu] != RDMENU_HIDDEN) {
			// Draw the menu here.
			curx = RDMENU_ICONSTART + RDMENU_ICONWIDE / 2;
			cury = (MENUDEEP / 2) + (RENDERDEEP + MENUDEEP) * menu;

			for (i = 0; i < RDMENU_MAXPOCKETS; i++) {
				if (_icons[menu][i]) {
					// Since we no longer clear the screen
					// after each frame we need to clear
					// the icon area.

					clearIconArea(menu, i, &r1);
					
					if (_pocketStatus[menu][i] == MAXMENUANIMS) {
						xoff = (RDMENU_ICONWIDE / 2);
						r2.left = curx - xoff;
						r2.right = r2.left + RDMENU_ICONWIDE;
						yoff = (RDMENU_ICONDEEP / 2);
						r2.top = cury - yoff;
						r2.bottom = r2.top + RDMENU_ICONDEEP;
					} else {
						xoff = (RDMENU_ICONWIDE / 2) * _pocketStatus[menu][i] / MAXMENUANIMS;
						r2.left = curx - xoff;
						r2.right = curx + xoff;
						yoff = (RDMENU_ICONDEEP / 2) * _pocketStatus[menu][i] / MAXMENUANIMS;
						r2.top = cury - yoff;
						r2.bottom = cury + yoff;
					}

					if (xoff != 0 && yoff != 0) {
						dst = _buffer + r2.top * _screenWide + r2.left;
						src = _icons[menu][i];

						if (_pocketStatus[menu][i] != MAXMENUANIMS) {
							squashImage(
								dst, _screenWide, r2.right - r2.left, r2.bottom - r2.top,
								src, RDMENU_ICONWIDE, RDMENU_ICONWIDE, RDMENU_ICONDEEP, NULL);
						} else {
							for (j = 0; j < RDMENU_ICONDEEP; j++) {
								memcpy(dst, src, RDMENU_ICONWIDE);
								src += RDMENU_ICONWIDE;
								dst += _screenWide;
							}
						}
						updateRect(&r1);
					}
				}
				curx += (RDMENU_ICONSPACING + RDMENU_ICONWIDE);
				r1.left += (RDMENU_ICONSPACING + RDMENU_ICONWIDE);
				r1.right += (RDMENU_ICONSPACING + RDMENU_ICONWIDE);
			}
		}
	}
}

/**
 * This function brings a specified menu into view. 
 * @param menu RDMENU_TOP or RDMENU_BOTTOM, depending on which menu to show
 * @return RD_OK, or an error code
 */

int32 Graphics::showMenu(uint8 menu) {
	// Check for invalid menu parameter
	if (menu > RDMENU_BOTTOM)
		return RDERR_INVALIDMENU;

	// Check that the menu is not currently shown, or in the process of
	// being shown.
	if (_menuStatus[menu] == RDMENU_SHOWN || _menuStatus[menu] == RDMENU_OPENING)
		return RDERR_INVALIDCOMMAND;

	_menuStatus[menu] = RDMENU_OPENING;
	return RD_OK;
}

/**
 * This function hides a specified menu.
 * @param menu RDMENU_TOP or RDMENU_BOTTOM depending on which menu to hide
 * @return RD_OK, or an error code
 */

int32 Graphics::hideMenu(uint8 menu) {
	// Check for invalid menu parameter
	if (menu > RDMENU_BOTTOM)
		return RDERR_INVALIDMENU;

	// Check that the menu is not currently hidden, or in the process of
	// being hidden.
	if (_menuStatus[menu] == RDMENU_HIDDEN || _menuStatus[menu] == RDMENU_CLOSING)
		return RDERR_INVALIDCOMMAND;

	_menuStatus[menu] = RDMENU_CLOSING;
	return RD_OK;
}

/**
 * This function hides both menus immediately.
 */

void Graphics::closeMenuImmediately(void) {
	Common::Rect r;
	int i;

	_menuStatus[0] = RDMENU_HIDDEN;
	_menuStatus[1] = RDMENU_HIDDEN;

	for (i = 0; i < RDMENU_MAXPOCKETS; i++) {
		if (_icons[0][i]) {
			clearIconArea(0, i, &r);
			updateRect(&r);
		}
		if (_icons[1][i]) {
			clearIconArea(1, i, &r);
			updateRect(&r);
		}
	}

	memset(_pocketStatus, 0, sizeof(uint8) * 2 * RDMENU_MAXPOCKETS);
}

/**
 * This function sets a menubar icon.
 * @param menu RDMENU_TOP or RDMENU_BOTTOM, depending on which menu to change
 * @param pocket the menu pocket to change
 * @param icon icon data, or NULL to clear the icon
 * @return RD_OK, or an error code
 */

int32 Graphics::setMenuIcon(uint8 menu, uint8 pocket, uint8 *icon) {
	Common::Rect r;

	// Check for invalid menu parameter.
	if (menu > RDMENU_BOTTOM)
		return RDERR_INVALIDMENU;
	
	// Check for invalid pocket parameter
	if (pocket >= RDMENU_MAXPOCKETS)
		return RDERR_INVALIDPOCKET;

	// If there is an icon in the requested menu/pocket, clear it out.
	if (_icons[menu][pocket]) {
		_iconCount--;
		free(_icons[menu][pocket]);
		_icons[menu][pocket] = NULL;
		clearIconArea(menu, pocket, &r);
		updateRect(&r);
	}

	// Only put the icon in the pocket if it is not NULL
	if (icon != NULL) {
		_iconCount++;
		_icons[menu][pocket] = (uint8 *) malloc(RDMENU_ICONWIDE * RDMENU_ICONDEEP);
		if (_icons[menu][pocket] == NULL)
			return RDERR_OUTOFMEMORY;
		memcpy(_icons[menu][pocket], icon, RDMENU_ICONWIDE * RDMENU_ICONDEEP);
	}

	return RD_OK;
}

} // End of namespace Sword2