aboutsummaryrefslogtreecommitdiff
path: root/subprojects/d2tk/pugl/examples/pugl_window_demo.c
blob: f7d5b2cb1338132208573c0c4bb829a2b5f7d85a (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
/*
  Copyright 2012-2020 David Robillard <d@drobilla.net>

  Permission to use, copy, modify, and/or distribute this software for any
  purpose with or without fee is hereby granted, provided that the above
  copyright notice and this permission notice appear in all copies.

  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

/*
  A demonstration of using multiple top-level windows.
*/

#include "cube_view.h"
#include "demo_utils.h"
#include "test/test_utils.h"

#include "pugl/gl.h"
#include "pugl/pugl.h"

#include <math.h>
#include <stdbool.h>
#include <string.h>

typedef struct {
  PuglView* view;
  double    xAngle;
  double    yAngle;
  double    lastMouseX;
  double    lastMouseY;
  double    lastDrawTime;
  float     dist;
  bool      entered;
} CubeView;

typedef struct {
  PuglWorld* world;
  CubeView   cubes[2];
  int        quit;
  bool       continuous;
  bool       verbose;
} PuglTestApp;

static const double pad = 64.0;

static void
onDisplay(PuglView* view)
{
  PuglWorld*   world = puglGetWorld(view);
  PuglTestApp* app   = (PuglTestApp*)puglGetWorldHandle(world);
  CubeView*    cube  = (CubeView*)puglGetHandle(view);

  const double thisTime = puglGetTime(app->world);
  if (app->continuous) {
    const double dTime = thisTime - cube->lastDrawTime;

    cube->xAngle = fmod(cube->xAngle + dTime * 100.0, 360.0);
    cube->yAngle = fmod(cube->yAngle + dTime * 100.0, 360.0);
  }

  displayCube(
    view, cube->dist, (float)cube->xAngle, (float)cube->yAngle, cube->entered);

  cube->lastDrawTime = thisTime;
}

static void
onKeyPress(PuglView* view, const PuglEventKey* event)
{
  PuglWorld*   world = puglGetWorld(view);
  PuglTestApp* app   = (PuglTestApp*)puglGetWorldHandle(world);
  PuglRect     frame = puglGetFrame(view);

  if (event->key == 'q' || event->key == PUGL_KEY_ESCAPE) {
    app->quit = 1;
  } else if (event->state & PUGL_MOD_SHIFT) {
    if (event->key == PUGL_KEY_UP) {
      frame.height += 10;
    } else if (event->key == PUGL_KEY_DOWN) {
      frame.height -= 10;
    } else if (event->key == PUGL_KEY_LEFT) {
      frame.width -= 10;
    } else if (event->key == PUGL_KEY_RIGHT) {
      frame.width += 10;
    } else {
      return;
    }
    puglSetFrame(view, frame);
  } else {
    if (event->key == PUGL_KEY_UP) {
      frame.y -= 10;
    } else if (event->key == PUGL_KEY_DOWN) {
      frame.y += 10;
    } else if (event->key == PUGL_KEY_LEFT) {
      frame.x -= 10;
    } else if (event->key == PUGL_KEY_RIGHT) {
      frame.x += 10;
    } else {
      return;
    }
    puglSetFrame(view, frame);
  }
}

static void
redisplayView(PuglTestApp* app, PuglView* view)
{
  if (!app->continuous) {
    puglPostRedisplay(view);
  }
}

static PuglStatus
onEvent(PuglView* view, const PuglEvent* event)
{
  PuglWorld*   world = puglGetWorld(view);
  PuglTestApp* app   = (PuglTestApp*)puglGetWorldHandle(world);
  CubeView*    cube  = (CubeView*)puglGetHandle(view);

  const char* const prefix = cube == &app->cubes[0] ? "View 1: " : "View 2: ";
  printEvent(event, prefix, app->verbose);

  switch (event->type) {
  case PUGL_CONFIGURE:
    reshapeCube((float)event->configure.width, (float)event->configure.height);
    break;
  case PUGL_UPDATE:
    if (app->continuous) {
      puglPostRedisplay(view);
    }
    break;
  case PUGL_EXPOSE:
    onDisplay(view);
    break;
  case PUGL_CLOSE:
    app->quit = 1;
    break;
  case PUGL_KEY_PRESS:
    onKeyPress(view, &event->key);
    break;
  case PUGL_MOTION:
    cube->xAngle -= event->motion.x - cube->lastMouseX;
    cube->yAngle += event->motion.y - cube->lastMouseY;
    cube->lastMouseX = event->motion.x;
    cube->lastMouseY = event->motion.y;
    redisplayView(app, view);
    break;
  case PUGL_SCROLL:
    cube->dist = fmaxf(10.0f, cube->dist + (float)event->scroll.dy);
    redisplayView(app, view);
    break;
  case PUGL_POINTER_IN:
    cube->entered = true;
    redisplayView(app, view);
    break;
  case PUGL_POINTER_OUT:
    cube->entered = false;
    redisplayView(app, view);
    break;
  case PUGL_FOCUS_IN:
  case PUGL_FOCUS_OUT:
    redisplayView(app, view);
    break;
  default:
    break;
  }

  return PUGL_SUCCESS;
}

int
main(int argc, char** argv)
{
  PuglTestApp app = {0};

  const PuglTestOptions opts = puglParseTestOptions(&argc, &argv);
  if (opts.help) {
    puglPrintTestUsage(argv[0], "");
    return 1;
  }

  app.continuous = opts.continuous;
  app.verbose    = opts.verbose;

  app.world         = puglNewWorld(PUGL_PROGRAM, 0);
  app.cubes[0].view = puglNewView(app.world);
  app.cubes[1].view = puglNewView(app.world);

  puglSetWorldHandle(app.world, &app);
  puglSetClassName(app.world, "Pugl Test");

  PuglStatus st = PUGL_SUCCESS;
  for (unsigned i = 0; i < 2; ++i) {
    CubeView*      cube  = &app.cubes[i];
    PuglView*      view  = cube->view;
    const PuglRect frame = {
      pad + (128.0 + pad) * i, pad + (128.0 + pad) * i, 512.0, 512.0};

    cube->dist = 10;

    puglSetWindowTitle(view, "Pugl Window Demo");
    puglSetFrame(view, frame);
    puglSetDefaultSize(view, 512, 512);
    puglSetMinSize(view, 128, 128);
    puglSetMaxSize(view, 2048, 2048);
    puglSetBackend(view, puglGlBackend());

    puglSetViewHint(view, PUGL_USE_DEBUG_CONTEXT, opts.errorChecking);
    puglSetViewHint(view, PUGL_RESIZABLE, opts.resizable);
    puglSetViewHint(view, PUGL_SAMPLES, opts.samples);
    puglSetViewHint(view, PUGL_DOUBLE_BUFFER, opts.doubleBuffer);
    puglSetViewHint(view, PUGL_SWAP_INTERVAL, opts.sync);
    puglSetViewHint(view, PUGL_IGNORE_KEY_REPEAT, opts.ignoreKeyRepeat);
    puglSetHandle(view, cube);
    puglSetEventFunc(view, onEvent);

    if (i == 1) {
      puglSetTransientFor(app.cubes[1].view,
                          puglGetNativeWindow(app.cubes[0].view));
    }

    if ((st = puglRealize(view))) {
      return logError("Failed to create window (%s)\n", puglStrerror(st));
    }

    puglShow(view);
  }

  PuglFpsPrinter fpsPrinter  = {puglGetTime(app.world)};
  unsigned       framesDrawn = 0;
  while (!app.quit) {
    puglUpdate(app.world, app.continuous ? 0.0 : -1.0);
    ++framesDrawn;

    if (app.continuous) {
      puglPrintFps(app.world, &fpsPrinter, &framesDrawn);
    }
  }

  for (size_t i = 0; i < 2; ++i) {
    puglFreeView(app.cubes[i].view);
  }

  puglFreeWorld(app.world);

  return 0;
}