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comparison mde/gl.d @ 27:0aa621b3e070

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Some GUI work, plus a small fix in the paths module. Implemented GUI code to load windows from file with a basic widget and draw. Fixed a bug in mde.resource.paths.mdeDirectory.makeMTReader when called with readOrder == PRIORITY.HIGH_ONLY. committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Fri, 04 Apr 2008 17:07:38 +0100
parents 611f7b9063c6
children 467c74d4804d
comparison
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26:611f7b9063c6 27:0aa621b3e070
11 See the GNU General Public License for more details. 11 See the GNU General Public License for more details.
12 12
13 You should have received a copy of the GNU General Public License 13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
15 15
16 /** Simple OpenGL functions. */ 16 /** Some basic OpenGL code.
17 *
18 * Everything here is really intended as makeshift code to enable GUI development. */
17 module mde.gl; 19 module mde.gl;
18 20
19 import mde.scheduler.runTime; 21 import mde.scheduler.runTime;
20 22
21 import derelict.sdl.sdl; 23 import derelict.sdl.sdl;
23 25
24 static this () { 26 static this () {
25 Scheduler.perRequest (RF_KEYS.DRAW, &mde.gl.draw); 27 Scheduler.perRequest (RF_KEYS.DRAW, &mde.gl.draw);
26 } 28 }
27 29
30 //BEGIN GL & window setup
28 void glSetup () { 31 void glSetup () {
29 glClearColor (0.0f, 0.0f, 0.0f, 0.0f); 32 glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
30 } 33 }
31 34
32 void setProjection (int w, int h) { 35 void setProjection (int w, int h) {
33 glMatrixMode (GL_PROJECTION); 36 glMatrixMode (GL_PROJECTION);
34 glLoadIdentity (); 37 glLoadIdentity ();
35 38
36 glViewport (0,0,w,h); 39 glViewport (0,0,w,h);
37 //glOrtho (0.0,w, 0.0,h, -1.0, 1.0); 40 glOrtho (0.0,w, 0.0,h, -1.0, 1.0);
38 glOrtho (0.0,1.0,0.0,1.0,-1.0,1.0); 41 //glOrtho (0.0,1.0,0.0,1.0,-1.0,1.0);
39 42
40 glMatrixMode(GL_MODELVIEW); 43 glMatrixMode(GL_MODELVIEW);
41 glLoadIdentity(); 44 glLoadIdentity();
42 } 45 }
46 //END GL & window setup
43 47
48 //BEGIN Drawing utils
49 // Simple drawing commands for use by GUI
50 // (temporary)
51 void setColor (float r, float g, float b) {
52 glColor3f (r, g, b);
53 }
54 void drawBox (int l, int r, int b, int t) {
55 glBegin (GL_QUADS);
56 {
57 glVertex2i (l, b);
58 glVertex2i (r, b);
59 glVertex2i (r, t);
60 glVertex2i (l, t);
61 }
62 glEnd();
63 }
64 //END Drawing utils
65
66 //BEGIN Drawing loop
44 // Temporary draw function 67 // Temporary draw function
45 void draw () { 68 void draw () {
46 glClear(GL_COLOR_BUFFER_BIT); 69 glClear(GL_COLOR_BUFFER_BIT);
47 70
48 glBegin (GL_QUADS); 71 foreach (func; drawCallbacks)
49 { 72 func();
50 glColor3f (0.2f, 0.6f, 0.8f);
51 /+glVertex2i (40, 40);
52 glVertex2i (200, 40);
53 glVertex2i (200, 200);
54 glVertex2i (40, 200);+/
55 glVertex2f (0.1f, 0.1f);
56 glVertex2f (0.9f, 0.1f);
57 glVertex2f (0.9f, 0.9f);
58 glVertex2f (0.1f, 0.9f);
59 }
60 glEnd();
61 73
62 glFlush(); 74 glFlush();
63 SDL_GL_SwapBuffers(); 75 SDL_GL_SwapBuffers();
64 } 76 }
77
78 alias void delegate() DrawingFunc;
79 void addDrawCallback (DrawingFunc f) {
80 drawCallbacks ~= f;
81 }
82 private DrawingFunc[] drawCallbacks;
83 //END Drawing loop