File: menusystem.cpp

package info (click to toggle)
qonk 0.3.1-1
  • links: PTS, VCS
  • area: main
  • in suites: lenny
  • size: 2,076 kB
  • ctags: 2,026
  • sloc: cpp: 14,978; sh: 3,464; makefile: 200
file content (283 lines) | stat: -rw-r--r-- 4,869 bytes parent folder | download | duplicates (3)
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
#include <iostream>

#include "settings.h"
#include "canvas.h"

#include "menusystem.h"
#include "menu.h"

using namespace gcn;
using namespace std;

MenuSystem::MenuSystem(SDLInput *input)
  : currentMenu(0)
{
  gui = new Gui();
  
  gui->setInput(input);
  gui->setGraphics(Canvas::getSDLGraphics());
  Image::setImageLoader(new SDLImageLoader());

  menuKeyListener = new MenuSystem::KeyListener(*this);
  gui->addGlobalKeyListener(menuKeyListener);

  normal = loadFont("normal.png");
  highlighted = loadFont("highlight.png");
  gcn::Widget::setGlobalFont(normal);

  top = new Container();
  top->setOpaque(false);
  top->setVisible(true);
  top->setPosition(0,0);
  top->setDimension(Rectangle(0, 0, Settings::getScreenWidth(), Settings::getScreenHeight()));

  gui->setTop(top);

  menus = new map< Menu::Id, Menu * > ();
}

MenuSystem::~MenuSystem()
{
  delete highlighted;
  delete normal;

  delete top;

  gui->removeGlobalKeyListener(menuKeyListener);
  delete menuKeyListener;

  delete gui;

  delete menus;
}

void
MenuSystem::render()
{
  gui->draw();
}

bool
MenuSystem::update()
{
  gui->logic();

  if (currentMenu != nextMenu)
  {
    if (currentMenu)
      currentMenu->leave();
    
    if (nextMenu)
      nextMenu->enter();

    currentMenu = nextMenu;
  }

  return currentMenu;
}

void
MenuSystem::resize()
{
  int w = Settings::getScreenWidth();
  int h =  Settings::getScreenHeight();
  top->setSize(w, h);

  for (map< Menu::Id, Menu * >::iterator i = menus->begin(); i != menus->end(); i++)
  {
    i->second->resize(w, h);
  }

}

void
MenuSystem::addMenu(Menu::Id menuId, Menu *menu)
{
  (*menus)[menuId] = menu;
  menu->registered(this);
  top->add(menu->getContainer());
}

ImageFont *
MenuSystem::getNormalFont()
{
  return normal;
}

ImageFont *
MenuSystem::getHighlightedFont()
{
  return highlighted;
}

ImageFont *
MenuSystem::loadFont(string fileName)
{
  ImageFont *font = 0;
  std::string s = PKG_DATA_DIR;
  s += fileName;

  try
  {
    font = new ImageFont(s, " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,!?-+/():;%&`'*#=[]\"");
    return font;
  }
  catch (gcn::Exception &e)
  {
  }

  s = "data";
#ifdef WINDOWS
  s += "\\";
#else
  s += "/";
#endif
  s += fileName;

  try
  {
    font = new ImageFont(s, " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,!?-+/():;%&`'*#=[]\"");
    return font;
  }
  catch (gcn::Exception &e)
  {
  }

  cerr << "Could not load " << fileName << " from the following directories: " << endl
       << PKG_DATA_DIR << endl
       << "data" << endl;

  exit( 1 );

  return 0;
}

Image *
MenuSystem::loadImage(string fileName)
{
  Image *image = 0;
  std::string s = PKG_DATA_DIR;
  s += fileName;

  try
  {
    image = Image::load(s);
    return image;
  }
  catch (gcn::Exception &e)
  {
  }

  s = "data";
#ifdef WINDOWS
  s += "\\";
#else
  s += "/";
#endif
  s += fileName;

  try
  {
    image = Image::load(s);
    return image;
  }
  catch (gcn::Exception &e)
  {
  }

  cerr << "Could not load " << fileName << " from the following directories: " << endl
       << PKG_DATA_DIR << endl
       << "data" << endl;

  exit( 1 );

  return 0;
}

/**
 * Makes the menu with the given id visible and hides the currently visible
 * one (if there is one).
 *
 * If called with no argument the main menu is shown.
 *
 * If called with id == NONE the menus are made invisible.
 *
 * Actually the menusystem does not change to current visible menu at once. It
 * just marks which menu it should show next and completes the request when
 * update() is called next.
 * Doing so prevents the menusystem from hiding right after it was made visible
 * from main.
 * 
 */
void
MenuSystem::enter(Menu::Id id)
{
  if (id != Menu::NONE)
  {
    nextMenu = (*menus)[id];
  }
  else
  {
    nextMenu = 0;
  }

}

bool
MenuSystem::isVisible() const
{
  return currentMenu;
}

void
MenuSystem::invoke()
{
  if (currentMenu)
    currentMenu->invoke();
}

void
MenuSystem::cancel()
{
  if (currentMenu)
    currentMenu->cancel();

}

MenuSystem::KeyListener::KeyListener(MenuSystem &menuSystem)
 : system(menuSystem)
{
}

void
MenuSystem::KeyListener::keyReleased(KeyEvent &keyEvent)
{
  // MenuSystem does not handle making itself visible. This is done from main.
  if (!system.currentMenu)
    return;

  switch (keyEvent.getKey().getValue())
  {
    case Key::BACKSPACE:
        system.currentMenu->reset();
        break;
    case Key::ESCAPE:
        system.currentMenu->cancel();
        break;
    case Key::ENTER:
        system.currentMenu->invoke();
        break;
    case Key::UP:
        system.currentMenu->up();
        break;
    case Key::DOWN:
        system.currentMenu->down();
        break;
    case Key::LEFT:
        system.currentMenu->previous();
        break;
    case Key::RIGHT:
        system.currentMenu->next();
        break;
  }
}