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_4444argb_resources.h"
9 #include "all_widgets_4444argb_specifications.h"
10
11 extern VOID memory_free(VOID *mem);
12
13 extern GX_WINDOW *pRotateScreen;
14 extern GX_WINDOW *pRotateWin;
15 INT rotate_pixelmap_id = GX_PIXELMAP_ID_ICON_FOOT;
16 INT angle = 30;
17 GX_BOOL direct = GX_FALSE;
18
update_angle_prompt()19 VOID update_angle_prompt()
20 {
21 GX_PROMPT *pp;
22 static GX_CHAR angle_text_buffer[10];
23 GX_STRING angle_text;
24
25 gx_widget_find(pRotateScreen, ID_ANGLE_DISPLAY, 0, &pp);
26
27 if (pp)
28 {
29 gx_utility_ltoa(angle, angle_text_buffer, 10);
30 angle_text.gx_string_ptr = angle_text_buffer;
31 angle_text.gx_string_length = strnlen(angle_text_buffer, sizeof(angle_text_buffer));
32 gx_prompt_text_set_ext(pp, &angle_text);
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(pRotateScreen);
46 break;
47
48 case GX_SIGNAL(ID_RADIO_FOOT, GX_EVENT_RADIO_SELECT):
49 rotate_pixelmap_id = GX_PIXELMAP_ID_ICON_FOOT;
50 gx_system_dirty_mark(pRotateScreen);
51 break;
52
53 case GX_SIGNAL(ID_RADIO_APPLE, GX_EVENT_RADIO_SELECT):
54 rotate_pixelmap_id= GX_PIXELMAP_ID_RED_APPLE;
55 gx_system_dirty_mark(pRotateScreen);
56 break;
57
58 case GX_SIGNAL(ID_RADIO_FISH, GX_EVENT_RADIO_SELECT):
59 rotate_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FISH;
60 gx_system_dirty_mark(pRotateScreen);
61 break;
62
63 case GX_SIGNAL(ID_DIRECT_ROTATE, GX_EVENT_TOGGLE_ON):
64 direct = GX_TRUE;
65 gx_system_dirty_mark(pRotateScreen);
66 break;
67
68 case GX_SIGNAL(ID_DIRECT_ROTATE, GX_EVENT_TOGGLE_OFF):
69 direct = GX_FALSE;
70 gx_system_dirty_mark(pRotateScreen);
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_context_pixelmap_get(rotate_pixelmap_id, &pixelmap);
95
96 win_size = pRotateWin->gx_widget_size;
97
98 xpos = (win_size.gx_rectangle_right + win_size.gx_rectangle_left - pixelmap->gx_pixelmap_width) >> 1;
99 ypos = (win_size.gx_rectangle_top + win_size.gx_rectangle_bottom - pixelmap->gx_pixelmap_height) >> 1;
100
101
102 if (direct)
103 {
104 gx_canvas_pixelmap_rotate(xpos, ypos, pixelmap, angle, -1, -1);
105 }
106 else
107 {
108 x_axis_old = (pixelmap->gx_pixelmap_width >> 1);
109 y_axis_old = (pixelmap->gx_pixelmap_height >> 1);
110
111 x_axis = x_axis_old;
112 y_axis = y_axis_old;
113
114 if (gx_utility_pixelmap_rotate(pixelmap, angle, &destination, &x_axis, &y_axis) == GX_SUCCESS)
115 {
116 xpos += x_axis_old - x_axis;
117 ypos += y_axis_old - y_axis;
118
119 /* Draw rotated pixelmap. */
120 gx_canvas_pixelmap_draw(xpos, ypos, &destination);
121
122 /* free memory of the rotated pixelmap */
123 if (destination.gx_pixelmap_data)
124 {
125 memory_free((VOID *)destination.gx_pixelmap_data);
126 }
127 }
128 else
129 {
130 gx_canvas_pixelmap_draw(xpos, ypos, pixelmap);
131 }
132 }
133 }
134
