1 /* This is a demo of the high-performance GUIX graphics framework. */
2
3 #include <stdio.h>
4 #include "gx_api.h"
5 #include "all_widgets_16bpp_resources.h"
6 #include "all_widgets_16bpp_specifications.h"
7
8 extern GX_WINDOW *pShapesScreen;
9
10 GX_RESOURCE_ID line_color = GX_COLOR_ID_GRAY;
11 GX_RESOURCE_ID fill_color = GX_COLOR_ID_PURPLE;
12 INT radius = 160;
13 GX_BOOL anti_aliased = GX_TRUE;
14 GX_BOOL round_end = GX_TRUE;
15 GX_BOOL solid_fill = GX_TRUE;
16 GX_BOOL pixelmap_fill = GX_FALSE;
17 INT brush_width = 2;
18 INT start_angle = 60;
19 INT end_angle = 90;
20 INT angle_off = 0;
21 INT ellipse_b = 100;
22 GX_UBYTE brush_alpha = 255;
23 INT fill_pixelmap_index = 0;
24 INT alpha = 0;
25 INT compress = 0;
26
27 GX_RESOURCE_ID pixelmap_id[4] = { GX_PIXELMAP_ID_ID_RAW, GX_PIXELMAP_ID_ID_ALPHA,
28 GX_PIXELMAP_ID_ID_COMPRESS, GX_PIXELMAP_ID_ID_COMPRESS_ALPHA};
29
30
31
32 #define CIRCLE 0
33 #define ARC 1
34 #define PIE 2
35 #define POLYGON 3
36 #define ELLIPSE 4
37 #define RECTANGLE 5
38
39 #define ARC_TIMER 5
40 #define PIE_TIMER 6
41
42 #define ARC_TICKS 2
43 #define PIE_TICKS 10
44
45 INT draw_shape = CIRCLE;
46 INT pre_shape;
47
update_prompt_value(GX_PROMPT * pp,INT value)48 VOID update_prompt_value(GX_PROMPT *pp, INT value)
49 {
50 static GX_CHAR str[10];
51 GX_STRING string;
52
53 if (pp)
54 {
55 gx_utility_ltoa(value, str, 10);
56 string.gx_string_ptr = str;
57 string.gx_string_length = strnlen(str, sizeof(str));
58 gx_prompt_text_set_ext(pp, &string);
59 }
60 }
61
shapesscreen_event_handler(GX_WINDOW * window,GX_EVENT * myevent)62 UINT shapesscreen_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
63 {
64 UINT status = 0;
65 GX_PROMPT *prompt;
66 GX_WINDOW *pGraphicsWin = &(((SHAPES_SCREEN_CONTROL_BLOCK *)pShapesScreen)->shapes_screen_graphics_window);
67
68 switch (myevent->gx_event_type)
69 {
70 case GX_EVENT_SHOW:
71 gx_window_event_process(window, myevent);
72 break;
73
74 case GX_SIGNAL(ID_BRUSH_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
75 brush_alpha = (GX_UBYTE )myevent->gx_event_payload.gx_event_longdata;
76 prompt = &(((SHAPES_SCREEN_CONTROL_BLOCK *)pShapesScreen) ->shapes_screen_prompt_12);
77 update_prompt_value(prompt, brush_alpha);
78 gx_system_dirty_mark(pGraphicsWin);
79 break;
80
81 case GX_SIGNAL(ID_RADIUS_SLIDER, GX_EVENT_SLIDER_VALUE):
82 radius = myevent->gx_event_payload.gx_event_longdata;
83 prompt = &(((SHAPES_SCREEN_CONTROL_BLOCK *)pShapesScreen)->shapes_screen_prompt_6);
84 update_prompt_value(prompt, radius);
85 gx_system_dirty_mark(pGraphicsWin);
86 break;
87
88 case GX_SIGNAL(ID_BRUSH_WIDTH, GX_EVENT_SLIDER_VALUE):
89 brush_width = myevent->gx_event_payload.gx_event_longdata;
90 prompt = &(((SHAPES_SCREEN_CONTROL_BLOCK *)pShapesScreen)->shapes_screen_prompt_7);
91 update_prompt_value(prompt, brush_width);
92 gx_system_dirty_mark(pGraphicsWin);
93 break;
94
95 case GX_SIGNAL(ID_ANTI_ALIASED, GX_EVENT_TOGGLE_ON):
96 anti_aliased = GX_TRUE;
97 gx_system_dirty_mark(pGraphicsWin);
98 break;
99
100 case GX_SIGNAL(ID_ANTI_ALIASED, GX_EVENT_TOGGLE_OFF):
101 anti_aliased = GX_FALSE;
102 gx_system_dirty_mark(pGraphicsWin);
103 break;
104
105 case GX_SIGNAL(ID_ROUND_END, GX_EVENT_TOGGLE_ON):
106 round_end = GX_TRUE;
107 gx_system_dirty_mark(pGraphicsWin);
108 break;
109
110 case GX_SIGNAL(ID_ROUND_END, GX_EVENT_TOGGLE_OFF):
111 round_end = GX_FALSE;
112 gx_system_dirty_mark(pGraphicsWin);
113 break;
114
115 case GX_SIGNAL(ID_SOLID_FILL, GX_EVENT_TOGGLE_ON):
116 solid_fill = GX_TRUE;
117 gx_system_dirty_mark(pGraphicsWin);
118 break;
119
120 case GX_SIGNAL(ID_SOLID_FILL, GX_EVENT_TOGGLE_OFF):
121 solid_fill = GX_FALSE;
122 gx_system_dirty_mark(pGraphicsWin);
123 break;
124
125 case GX_SIGNAL(ID_PIXELMAP_FILL, GX_EVENT_TOGGLE_ON):
126 pixelmap_fill = GX_TRUE;
127 gx_system_dirty_mark(pGraphicsWin);
128 break;
129
130 case GX_SIGNAL(ID_PIXELMAP_FILL, GX_EVENT_TOGGLE_OFF):
131 pixelmap_fill = GX_FALSE;
132 gx_system_dirty_mark(pGraphicsWin);
133 break;
134
135 case GX_SIGNAL(ID_COMPRESS, GX_EVENT_TOGGLE_ON):
136 compress = 2;
137 gx_system_dirty_mark(pGraphicsWin);
138 break;
139
140 case GX_SIGNAL(ID_COMPRESS, GX_EVENT_TOGGLE_OFF):
141 compress = 0;
142 gx_system_dirty_mark(pGraphicsWin);
143 break;
144
145 case GX_SIGNAL(ID_ALPHA, GX_EVENT_TOGGLE_ON):
146 alpha = 1;
147 gx_system_dirty_mark(pGraphicsWin);
148 break;
149
150 case GX_SIGNAL(ID_ALPHA, GX_EVENT_TOGGLE_OFF):
151 alpha = 0;
152 gx_system_dirty_mark(pGraphicsWin);
153 break;
154
155 case GX_SIGNAL(ID_CIRCLE, GX_EVENT_RADIO_SELECT):
156 draw_shape = CIRCLE;
157 gx_system_dirty_mark(pGraphicsWin);
158 break;
159
160 case GX_SIGNAL(ID_ELLIPSE, GX_EVENT_RADIO_SELECT):
161 draw_shape = ELLIPSE;
162 gx_system_dirty_mark(pGraphicsWin);
163 break;
164
165 case GX_SIGNAL(ID_ARC, GX_EVENT_RADIO_SELECT):
166 draw_shape = ARC;
167 end_angle = start_angle;
168 gx_system_timer_start(pGraphicsWin, ARC_TIMER, ARC_TICKS, ARC_TICKS);
169 gx_system_dirty_mark(pGraphicsWin);
170 break;
171
172 case GX_SIGNAL(ID_PIE, GX_EVENT_RADIO_SELECT):
173 draw_shape = PIE;
174 gx_system_timer_start(pGraphicsWin, PIE_TIMER, PIE_TICKS, PIE_TICKS);
175 gx_system_dirty_mark(pGraphicsWin);
176 break;
177
178 case GX_SIGNAL(ID_POLYGON, GX_EVENT_RADIO_SELECT):
179 draw_shape = POLYGON;
180 gx_system_dirty_mark(pGraphicsWin);
181 break;
182
183 case GX_SIGNAL(ID_RECTANGLE, GX_EVENT_RADIO_SELECT):
184 draw_shape = RECTANGLE;
185 gx_system_dirty_mark(pGraphicsWin);
186 break;
187
188 case GX_EVENT_TIMER:
189 if (myevent->gx_event_payload.gx_event_timer_id == ARC_TIMER)
190 {
191 /* Update arc parameter. */
192 end_angle += 2;
193 if (end_angle == 360)
194 {
195 gx_system_timer_stop(pGraphicsWin, ARC_TIMER);
196 }
197 }
198 else if (myevent->gx_event_payload.gx_event_timer_id == PIE_TIMER)
199 {
200 /* Update pie parameter. */
201 angle_off += 2;
202 if (angle_off >= 360)
203 {
204 angle_off = 0;
205 }
206 gx_system_dirty_mark(pGraphicsWin);
207 }
208 break;
209
210 default:
211 return next_button_handler(window, myevent);
212 break;
213 }
214 fill_pixelmap_index = alpha + compress;
215 return status;
216 }
217
218
219
graphics_draw(GX_WINDOW * window)220 VOID graphics_draw(GX_WINDOW *window)
221 {
222 ULONG brush_style = 0;
223 GX_RECTANGLE rect;
224 GX_POINT rectangle[4] = { { 188, 50 },{ 254, 50 },{ 254, 150 },{ 188, 150 } };
225 GX_POINT pentagon[5] = { { 290, 90 },{ 335, 50 },{ 380, 90 },{ 360, 150 },{ 310, 150 } };
226 GX_POINT concave[6] = { { 50, 50 },{ 90, 80 },{ 130, 50 },{ 130, 150 },{ 90, 110 },{ 50, 150 } };
227 GX_POINT star[10] = { { 173, 227 },{ 212, 227 },{ 223, 187 },{ 237, 227 },{ 273, 227 },{ 244, 253 },{ 256, 294 },{ 226, 270 },{ 192, 293 },{ 203, 253 } };
228 GX_POINT self_intersection[8] = { { 110, 321 },{ 189, 415 },{ 266, 321 },{ 334, 415 },{ 334, 321 },{ 264, 415 },{ 189, 321 },{ 110, 415 } };
229 INT xcenter = 213;
230 INT ycenter = 230;
231 GX_BRUSH *brush;
232
233 gx_context_brush_get(&brush);
234 gx_window_draw((GX_WINDOW*)window);
235 brush->gx_brush_alpha = brush_alpha;
236
237 if (anti_aliased)
238 {
239 brush_style |= GX_BRUSH_ALIAS;
240 }
241
242 if (solid_fill)
243 {
244 brush_style |= GX_BRUSH_SOLID_FILL;
245 }
246
247 if (pixelmap_fill)
248 {
249 brush_style |= GX_BRUSH_PIXELMAP_FILL;
250 gx_context_pixelmap_set(pixelmap_id[fill_pixelmap_index]);
251 }
252
253 if (round_end)
254 {
255 brush_style |= GX_BRUSH_ROUND;
256 }
257
258 gx_context_brush_define(line_color, fill_color, brush_style);
259 gx_context_brush_width_set(brush_width);
260
261
262 switch (draw_shape)
263 {
264
265 case CIRCLE:
266 gx_canvas_circle_draw(xcenter, ycenter, radius);
267 break;
268
269 case ARC:
270
271 gx_canvas_arc_draw(xcenter, ycenter, radius, start_angle, end_angle);
272 break;
273
274 case PIE:
275 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_INDIAN_RED, brush_style);
276 gx_canvas_pie_draw(xcenter, ycenter, radius, 60 + angle_off, 150 + angle_off);
277
278 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_YELLOW, brush_style);
279 gx_canvas_pie_draw(xcenter, ycenter, radius, 150 + angle_off, 200 + angle_off);
280
281 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_PINK, brush_style);
282 gx_canvas_pie_draw(xcenter, ycenter, radius, 200 + angle_off, 280 + angle_off);
283
284 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_PURPLE, brush_style);
285 gx_canvas_pie_draw(xcenter, ycenter, radius, 280 + angle_off, 60 + angle_off);
286 break;
287
288 case RECTANGLE:
289 gx_context_line_color_set(GX_COLOR_ID_INDIAN_RED);
290 gx_context_fill_color_set(GX_COLOR_ID_YELLOW);
291 rect = window->gx_widget_size;
292 gx_utility_rectangle_resize(&rect, -10);
293 gx_canvas_rectangle_draw(&rect);
294
295 gx_utility_rectangle_resize(&rect, -30);
296 gx_context_fill_color_set(GX_COLOR_ID_BROWN);
297 gx_canvas_rectangle_draw(&rect);
298
299 gx_utility_rectangle_resize(&rect, -30);
300 gx_context_line_color_set(GX_COLOR_ID_WHITE);
301 gx_context_fill_color_set(GX_COLOR_ID_BLACK);
302 gx_canvas_rectangle_draw(&rect);
303 break;
304
305 case POLYGON:
306 gx_context_brush_define(GX_COLOR_ID_GREEN, fill_color, brush_style);
307 gx_canvas_polygon_draw(rectangle, 4);
308 gx_canvas_polygon_draw(pentagon, 5);
309 gx_canvas_polygon_draw(concave, 6);
310 gx_canvas_polygon_draw(star, 10);
311 gx_canvas_polygon_draw(self_intersection, 8);
312 break;
313
314 case ELLIPSE:
315 gx_context_brush_define(GX_COLOR_ID_BROWN, GX_COLOR_ID_YELLOW, brush_style);
316 gx_canvas_ellipse_draw(xcenter, ycenter, radius, ellipse_b);
317
318 if (radius > 50)
319 {
320 gx_context_brush_define(GX_COLOR_ID_BROWN, GX_COLOR_ID_WHITE, brush_style);
321 gx_canvas_ellipse_draw(xcenter, ycenter, radius - 50, ellipse_b);
322 }
323
324 if (radius > 100)
325 {
326 gx_context_brush_define(GX_COLOR_ID_BROWN, GX_COLOR_ID_YELLOW, brush_style);
327 gx_canvas_ellipse_draw(xcenter, ycenter, radius - 100, ellipse_b);
328 }
329 break;
330 }
331
332 }
