1 /****************************************************************/
2 /* This file tests gx_utility_4444argb_roate and */
3 /* _gx_display_driver_16bpp_pixelmap_rotate */
4 /* */
5 /****************************************************************/
6 #include <stdio.h>
7 #include "gx_api.h"
8 #include "all_widgets_565bgr_resources.h"
9 #include "all_widgets_565bgr_specifications.h"
10
11 extern GX_WINDOW_ROOT *root;
12 extern VOID memory_free(VOID *mem);
13
14 INT angle = 90;
15 INT rotate_pixelmap_index = 0;
16 GX_RESOURCE_ID rotate_pixelmap_id[] = { GX_PIXELMAP_ID_ROTATE_FOOT, GX_PIXELMAP_ID_ROTATE_APPLE, GX_PIXELMAP_ID_ROTATE_FISH, GX_PIXELMAP_ID_BLACK_PAUSE_ALPHAMAP};
17 GX_BOOL direct = GX_FALSE;
18
update_angle_prompt()19 VOID update_angle_prompt()
20 {
21 GX_PROMPT *pp;
22 static GX_CHAR rotate_angle[10];
23 GX_STRING string;
24
25 gx_widget_find(&rotate_screen, ID_ANGLE_DISPLAY, 0, &pp);
26
27 if (pp)
28 {
29 gx_utility_ltoa(angle, rotate_angle, 10);
30 string.gx_string_ptr = rotate_angle;
31 string.gx_string_length = strnlen(rotate_angle, sizeof(rotate_angle));
32 gx_prompt_text_set_ext(pp, &string);
33 }
34 }
35
rotate_event_handler(GX_WINDOW * window,GX_EVENT * myevent)36 UINT rotate_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
37 {
38 UINT status = 0;
39
40 switch (myevent->gx_event_type)
41 {
42 case GX_SIGNAL(ID_SLIDER_ANGLE, GX_EVENT_SLIDER_VALUE):
43 angle = myevent->gx_event_payload.gx_event_longdata;
44 update_angle_prompt();
45 gx_system_dirty_mark(&rotate_screen);
46 break;
47
48 case GX_SIGNAL(ID_RADIO_FOOT, GX_EVENT_RADIO_SELECT):
49 rotate_pixelmap_index = 0;
50 gx_system_dirty_mark(&rotate_screen);
51 break;
52
53 case GX_SIGNAL(ID_RADIO_APPLE, GX_EVENT_RADIO_SELECT):
54 rotate_pixelmap_index = 1;
55 gx_system_dirty_mark(&rotate_screen);
56 break;
57
58 case GX_SIGNAL(ID_RADIO_FISH, GX_EVENT_RADIO_SELECT):
59 rotate_pixelmap_index = 2;
60 gx_system_dirty_mark(&rotate_screen);
61 break;
62
63 case GX_SIGNAL(ID_DIRECT_ROTATE, GX_EVENT_TOGGLE_ON):
64 direct = GX_TRUE;
65 gx_system_dirty_mark(&rotate_screen);
66 break;
67
68 case GX_SIGNAL(ID_DIRECT_ROTATE, GX_EVENT_TOGGLE_OFF):
69 direct = GX_FALSE;
70 gx_system_dirty_mark(&rotate_screen);
71 break;
72
73 default:
74 return next_button_handler(window, myevent);
75 break;
76 }
77 return status;
78 }
79
pixelmap_draw(GX_WINDOW * window)80 VOID pixelmap_draw(GX_WINDOW *window)
81 {
82 INT xpos;
83 INT ypos;
84 GX_PIXELMAP *pixelmap;
85 GX_RECTANGLE win_size;
86 GX_PIXELMAP destination;
87 INT x_axis_old;
88 INT y_axis_old;
89 INT x_axis;
90 INT y_axis;
91
92 gx_window_draw((GX_WINDOW*)window);
93
94 gx_widget_pixelmap_get(window, rotate_pixelmap_id[rotate_pixelmap_index], &pixelmap);
95 win_size = rotate_screen.rotate_screen_pixelmap_window.gx_widget_size;
96
97 xpos = (win_size.gx_rectangle_right + win_size.gx_rectangle_left - pixelmap->gx_pixelmap_width) >> 1;
98 ypos = (win_size.gx_rectangle_top + win_size.gx_rectangle_bottom - pixelmap->gx_pixelmap_height) >> 1;
99
100 if (direct)
101 {
102 gx_canvas_pixelmap_rotate(xpos, ypos, pixelmap, angle, -1, -1);
103 }
104 else
105 {
106 x_axis_old = (pixelmap->gx_pixelmap_width >> 1);
107 y_axis_old = (pixelmap->gx_pixelmap_height >> 1);
108
109 x_axis = x_axis_old;
110 y_axis = y_axis_old;
111
112 if (gx_utility_pixelmap_rotate(pixelmap, angle, &destination, &x_axis, &y_axis) == GX_SUCCESS)
113 {
114 xpos += x_axis_old - x_axis;
115 ypos += y_axis_old - y_axis;
116
117 /* Draw rotated pixelmap. */
118 gx_canvas_pixelmap_draw(xpos, ypos, &destination);
119
120 /* free memory of the rotated pixelmap */
121 if (destination.gx_pixelmap_data)
122 {
123 memory_free((VOID *)destination.gx_pixelmap_data);
124 }
125 if (destination.gx_pixelmap_aux_data)
126 {
127 memory_free((VOID *)destination.gx_pixelmap_aux_data);
128 }
129 }
130 else
131 {
132 gx_canvas_pixelmap_draw(xpos, ypos, pixelmap);
133 }
134 }
135 }
136
