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_565bgr_resources.h"
6 #include "all_widgets_565bgr_specifications.h"
7
8 GX_RESOURCE_ID line_color = GX_COLOR_ID_GRAY;
9 GX_RESOURCE_ID fill_color = GX_COLOR_ID_PURPLE;
10 INT radius = 160;
11 GX_BOOL anti_aliased = GX_TRUE;
12 GX_BOOL round_end = GX_TRUE;
13 GX_BOOL solid_fill = GX_TRUE;
14 GX_BOOL pixelmap_fill = GX_FALSE;
15 INT brush_width = 2;
16 INT start_angle = 60;
17 INT end_angle = 90;
18 INT angle_off = 0;
19 INT ellipse_b = 100;
20 GX_UBYTE brush_alpha = 255;
21 INT fill_pixelmap_index = 0;
22 INT alpha = 0;
23 INT compress = 0;
24
25 GX_RESOURCE_ID pixelmap_id[4] = { GX_PIXELMAP_ID_ID_RAW, GX_PIXELMAP_ID_ID_ALPHA,
26 GX_PIXELMAP_ID_ID_COMPRESS, GX_PIXELMAP_ID_ID_COMPRESS_ALPHA};
27
28
29
30 #define CIRCLE 0
31 #define ARC 1
32 #define PIE 2
33 #define POLYGON 3
34 #define ELLIPSE 4
35 #define RECTANGLE 5
36
37 #define ARC_TIMER 5
38 #define PIE_TIMER 6
39
40 #define ARC_TICKS 2
41 #define PIE_TICKS 10
42
43 INT draw_shape = CIRCLE;
44 INT pre_shape;
45
update_prompt_value(GX_PROMPT * pp,INT value)46 VOID update_prompt_value(GX_PROMPT *pp, INT value)
47 {
48 static GX_CHAR str[10];
49 GX_STRING string;
50
51 if (pp)
52 {
53 gx_utility_ltoa(value, str, 10);
54 string.gx_string_ptr = str;
55 string.gx_string_length = strnlen(str, sizeof(str));
56 gx_prompt_text_set_ext(pp, &string);
57 }
58 }
59
shapesscreen_event_handler(GX_WINDOW * window,GX_EVENT * myevent)60 UINT shapesscreen_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
61 {
62 UINT status = 0;
63 GX_PROMPT *prompt;
64 GX_WINDOW *pGraphicsWin = &shapes_screen.shapes_screen_graphics_window;
65
66 switch (myevent->gx_event_type)
67 {
68 case GX_EVENT_SHOW:
69 gx_window_event_process(window, myevent);
70 break;
71
72 case GX_SIGNAL(ID_BRUSH_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
73 brush_alpha = (GX_UBYTE )myevent->gx_event_payload.gx_event_longdata;
74 prompt = &shapes_screen.shapes_screen_prompt_12;
75 update_prompt_value(prompt, brush_alpha);
76 gx_system_dirty_mark(pGraphicsWin);
77 break;
78
79 case GX_SIGNAL(ID_RADIUS_SLIDER, GX_EVENT_SLIDER_VALUE):
80 radius = myevent->gx_event_payload.gx_event_longdata;
81 prompt = &shapes_screen.shapes_screen_prompt_6;
82 update_prompt_value(prompt, radius);
83 gx_system_dirty_mark(pGraphicsWin);
84 break;
85
86 case GX_SIGNAL(ID_BRUSH_WIDTH, GX_EVENT_SLIDER_VALUE):
87 brush_width = myevent->gx_event_payload.gx_event_longdata;
88 prompt = &shapes_screen.shapes_screen_prompt_7;
89 update_prompt_value(prompt, brush_width);
90 gx_system_dirty_mark(pGraphicsWin);
91 break;
92
93 case GX_SIGNAL(ID_ANTI_ALIASED, GX_EVENT_TOGGLE_ON):
94 anti_aliased = GX_TRUE;
95 gx_system_dirty_mark(pGraphicsWin);
96 break;
97
98 case GX_SIGNAL(ID_ANTI_ALIASED, GX_EVENT_TOGGLE_OFF):
99 anti_aliased = GX_FALSE;
100 gx_system_dirty_mark(pGraphicsWin);
101 break;
102
103 case GX_SIGNAL(ID_ROUND_END, GX_EVENT_TOGGLE_ON):
104 round_end = GX_TRUE;
105 gx_system_dirty_mark(pGraphicsWin);
106 break;
107
108 case GX_SIGNAL(ID_ROUND_END, GX_EVENT_TOGGLE_OFF):
109 round_end = GX_FALSE;
110 gx_system_dirty_mark(pGraphicsWin);
111 break;
112
113 case GX_SIGNAL(ID_SOLID_FILL, GX_EVENT_TOGGLE_ON):
114 solid_fill = GX_TRUE;
115 gx_system_dirty_mark(pGraphicsWin);
116 break;
117
118 case GX_SIGNAL(ID_SOLID_FILL, GX_EVENT_TOGGLE_OFF):
119 solid_fill = GX_FALSE;
120 gx_system_dirty_mark(pGraphicsWin);
121 break;
122
123 case GX_SIGNAL(ID_PIXELMAP_FILL, GX_EVENT_TOGGLE_ON):
124 pixelmap_fill = GX_TRUE;
125 gx_system_dirty_mark(pGraphicsWin);
126 break;
127
128 case GX_SIGNAL(ID_PIXELMAP_FILL, GX_EVENT_TOGGLE_OFF):
129 pixelmap_fill = GX_FALSE;
130 gx_system_dirty_mark(pGraphicsWin);
131 break;
132
133 case GX_SIGNAL(ID_COMPRESS, GX_EVENT_TOGGLE_ON):
134 compress = 2;
135 gx_system_dirty_mark(pGraphicsWin);
136 break;
137
138 case GX_SIGNAL(ID_COMPRESS, GX_EVENT_TOGGLE_OFF):
139 compress = 0;
140 gx_system_dirty_mark(pGraphicsWin);
141 break;
142
143 case GX_SIGNAL(ID_ALPHA, GX_EVENT_TOGGLE_ON):
144 alpha = 1;
145 gx_system_dirty_mark(pGraphicsWin);
146 break;
147
148 case GX_SIGNAL(ID_ALPHA, GX_EVENT_TOGGLE_OFF):
149 alpha = 0;
150 gx_system_dirty_mark(pGraphicsWin);
151 break;
152
153 case GX_SIGNAL(ID_CIRCLE, GX_EVENT_RADIO_SELECT):
154 draw_shape = CIRCLE;
155 gx_system_dirty_mark(pGraphicsWin);
156 break;
157
158 case GX_SIGNAL(ID_ELLIPSE, GX_EVENT_RADIO_SELECT):
159 draw_shape = ELLIPSE;
160 gx_system_dirty_mark(pGraphicsWin);
161 break;
162
163 case GX_SIGNAL(ID_ARC, GX_EVENT_RADIO_SELECT):
164 draw_shape = ARC;
165 end_angle = start_angle;
166 gx_system_timer_start(pGraphicsWin, ARC_TIMER, ARC_TICKS, ARC_TICKS);
167 gx_system_dirty_mark(pGraphicsWin);
168 break;
169
170 case GX_SIGNAL(ID_PIE, GX_EVENT_RADIO_SELECT):
171 draw_shape = PIE;
172 gx_system_timer_start(pGraphicsWin, PIE_TIMER, PIE_TICKS, PIE_TICKS);
173 gx_system_dirty_mark(pGraphicsWin);
174 break;
175
176 case GX_SIGNAL(ID_POLYGON, GX_EVENT_RADIO_SELECT):
177 draw_shape = POLYGON;
178 gx_system_dirty_mark(pGraphicsWin);
179 break;
180
181 case GX_SIGNAL(ID_RECTANGLE, GX_EVENT_RADIO_SELECT):
182 draw_shape = RECTANGLE;
183 gx_system_dirty_mark(pGraphicsWin);
184 break;
185
186 case GX_EVENT_TIMER:
187 if (myevent->gx_event_payload.gx_event_timer_id == ARC_TIMER)
188 {
189 /* Update arc parameter. */
190 end_angle += 2;
191 if (end_angle == 360)
192 {
193 gx_system_timer_stop(pGraphicsWin, ARC_TIMER);
194 }
195 }
196 else if (myevent->gx_event_payload.gx_event_timer_id == PIE_TIMER)
197 {
198 /* Update pie parameter. */
199 angle_off += 2;
200 if (angle_off >= 360)
201 {
202 angle_off = 0;
203 }
204 gx_system_dirty_mark(pGraphicsWin);
205 }
206 break;
207
208 default:
209 return next_button_handler(window, myevent);
210 break;
211 }
212 fill_pixelmap_index = alpha + compress;
213 return status;
214 }
215
216
217
graphics_draw(GX_WINDOW * window)218 VOID graphics_draw(GX_WINDOW *window)
219 {
220 ULONG brush_style = 0;
221 GX_RECTANGLE rect;
222 GX_POINT rectangle[4] = { { 188, 50 },{ 254, 50 },{ 254, 150 },{ 188, 150 } };
223 GX_POINT pentagon[5] = { { 290, 90 },{ 335, 50 },{ 380, 90 },{ 360, 150 },{ 310, 150 } };
224 GX_POINT concave[6] = { { 50, 50 },{ 90, 80 },{ 130, 50 },{ 130, 150 },{ 90, 110 },{ 50, 150 } };
225 GX_POINT star[10] = { { 173, 227 },{ 212, 227 },{ 223, 187 },{ 237, 227 },{ 273, 227 },{ 244, 253 },{ 256, 294 },{ 226, 270 },{ 192, 293 },{ 203, 253 } };
226 GX_POINT self_intersection[8] = { { 110, 321 },{ 189, 415 },{ 266, 321 },{ 334, 415 },{ 334, 321 },{ 264, 415 },{ 189, 321 },{ 110, 415 } };
227 INT xcenter = 213;
228 INT ycenter = 230;
229 GX_BRUSH *brush;
230
231 gx_context_brush_get(&brush);
232 gx_window_draw((GX_WINDOW*)window);
233 brush->gx_brush_alpha = brush_alpha;
234
235 if (anti_aliased)
236 {
237 brush_style |= GX_BRUSH_ALIAS;
238 }
239
240 if (solid_fill)
241 {
242 brush_style |= GX_BRUSH_SOLID_FILL;
243 }
244
245 if (pixelmap_fill)
246 {
247 brush_style |= GX_BRUSH_PIXELMAP_FILL;
248 gx_context_pixelmap_set(pixelmap_id[fill_pixelmap_index]);
249 }
250
251 if (round_end)
252 {
253 brush_style |= GX_BRUSH_ROUND;
254 }
255
256 gx_context_brush_define(line_color, fill_color, brush_style);
257 gx_context_brush_width_set(brush_width);
258
259
260 switch (draw_shape)
261 {
262
263 case CIRCLE:
264 gx_canvas_circle_draw(xcenter, ycenter, radius);
265 break;
266
267 case ARC:
268
269 gx_canvas_arc_draw(xcenter, ycenter, radius, start_angle, end_angle);
270 break;
271
272 case PIE:
273 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_INDIAN_RED, brush_style);
274 gx_canvas_pie_draw(xcenter, ycenter, radius, 60 + angle_off, 150 + angle_off);
275
276 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_YELLOW, brush_style);
277 gx_canvas_pie_draw(xcenter, ycenter, radius, 150 + angle_off, 200 + angle_off);
278
279 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_PINK, brush_style);
280 gx_canvas_pie_draw(xcenter, ycenter, radius, 200 + angle_off, 280 + angle_off);
281
282 gx_context_brush_define(GX_COLOR_ID_GRAY, GX_COLOR_ID_PURPLE, brush_style);
283 gx_canvas_pie_draw(xcenter, ycenter, radius, 280 + angle_off, 60 + angle_off);
284 break;
285
286 case RECTANGLE:
287 gx_context_line_color_set(GX_COLOR_ID_INDIAN_RED);
288 gx_context_fill_color_set(GX_COLOR_ID_YELLOW);
289 rect = window->gx_widget_size;
290 gx_utility_rectangle_resize(&rect, -10);
291 gx_canvas_rectangle_draw(&rect);
292
293 gx_utility_rectangle_resize(&rect, -30);
294 gx_context_fill_color_set(GX_COLOR_ID_BROWN);
295 gx_canvas_rectangle_draw(&rect);
296
297 gx_utility_rectangle_resize(&rect, -30);
298 gx_context_line_color_set(GX_COLOR_ID_WHITE);
299 gx_context_fill_color_set(GX_COLOR_ID_BLACK);
300 gx_canvas_rectangle_draw(&rect);
301 break;
302
303 case POLYGON:
304 gx_context_brush_define(GX_COLOR_ID_GREEN, fill_color, brush_style);
305 gx_canvas_polygon_draw(rectangle, 4);
306 gx_canvas_polygon_draw(pentagon, 5);
307 gx_canvas_polygon_draw(concave, 6);
308 gx_canvas_polygon_draw(star, 10);
309 gx_canvas_polygon_draw(self_intersection, 8);
310 break;
311
312 case ELLIPSE:
313 gx_context_brush_define(GX_COLOR_ID_BROWN, GX_COLOR_ID_YELLOW, brush_style);
314 gx_canvas_ellipse_draw(xcenter, ycenter, radius, ellipse_b);
315
316 if (radius > 50)
317 {
318 gx_context_brush_define(GX_COLOR_ID_BROWN, GX_COLOR_ID_WHITE, brush_style);
319 gx_canvas_ellipse_draw(xcenter, ycenter, radius - 50, ellipse_b);
320 }
321
322 if (radius > 100)
323 {
324 gx_context_brush_define(GX_COLOR_ID_BROWN, GX_COLOR_ID_YELLOW, brush_style);
325 gx_canvas_ellipse_draw(xcenter, ycenter, radius - 100, ellipse_b);
326 }
327 break;
328 }
329
330 }
