1 /* This is a small demo of the high-performance GUIX graphics framework. */
2
3 #include <stdio.h>
4 #include "gx_api.h"
5 #include "all_widgets_332rgb_resources.h"
6 #include "all_widgets_332rgb_specifications.h"
7
8 GX_UBYTE alpha_value = 255;
9 GX_BOOL sprite_move_down = GX_TRUE;
10 extern GX_WINDOW *pSpriteScreen;
11 extern VOID memory_free(VOID *mem);
12 GX_RESOURCE_ID map_id = GX_PIXELMAP_ID_ROTATE_APPLE;
13
14 void move_sprite(void);
15
16
17
sprite_event_handler(GX_WINDOW * window,GX_EVENT * event_ptr)18 UINT sprite_event_handler(GX_WINDOW *window, GX_EVENT *event_ptr)
19 {
20 switch (event_ptr->gx_event_type)
21 {
22 case GX_SIGNAL(ID_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
23 alpha_value = (GX_UBYTE)event_ptr->gx_event_payload.gx_event_longdata;
24 gx_system_dirty_mark(&((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_apple_window);
25 break;
26
27 case GX_SIGNAL(ID_BIRD_SPRITE, GX_EVENT_SPRITE_COMPLETE):
28 gx_widget_hide(&((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_sprite);
29 move_sprite();
30 gx_widget_show(&((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_sprite);
31 break;
32 default:
33 return next_button_handler(window, event_ptr);
34 }
35
36 return 0;
37 }
38
move_sprite(void)39 void move_sprite(void)
40 {
41 GX_RECTANGLE size;
42 GX_SPRITE *sprite = &((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_sprite;
43
44 size = sprite->gx_widget_size;
45
46 if (sprite_move_down)
47 {
48 gx_utility_rectangle_shift(&size, 100, 117);
49 sprite_move_down = GX_FALSE;
50 }
51 else
52 {
53 gx_utility_rectangle_shift(&size, 100, -57);
54 sprite_move_down = GX_TRUE;
55 }
56 if (size.gx_rectangle_bottom > pSpriteScreen->gx_widget_size.gx_rectangle_bottom)
57 {
58 size.gx_rectangle_top -= pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
59 size.gx_rectangle_bottom -= pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
60 }
61 if (size.gx_rectangle_top < pSpriteScreen->gx_widget_size.gx_rectangle_top)
62 {
63 size.gx_rectangle_top += pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
64 size.gx_rectangle_bottom += pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
65 }
66
67
68 if (size.gx_rectangle_right > pSpriteScreen->gx_widget_size.gx_rectangle_right)
69 {
70 size.gx_rectangle_left -= pSpriteScreen->gx_widget_size.gx_rectangle_right;
71 size.gx_rectangle_right -= pSpriteScreen->gx_widget_size.gx_rectangle_right;
72 }
73 gx_widget_resize(sprite, &size);
74 }
75
apple_window_draw(GX_WINDOW * window)76 VOID apple_window_draw(GX_WINDOW *window)
77 {
78 GX_PIXELMAP *map;
79 GX_PIXELMAP scaled_map;
80 int width;
81 int height;
82 int xpos;
83 int ypos;
84
85 gx_context_pixelmap_get(map_id, &map);
86
87 width = (alpha_value * map->gx_pixelmap_width) >> 8;
88 height = (alpha_value * map->gx_pixelmap_height) >> 8;
89
90 if ((width == 0) || (height == 0))
91 {
92 return;
93 }
94
95 if (gx_utility_pixelmap_resize(map, &scaled_map, width, height) == GX_SUCCESS)
96 {
97 xpos = window->gx_widget_size.gx_rectangle_left;
98 ypos = window->gx_widget_size.gx_rectangle_top;
99
100 xpos += (map->gx_pixelmap_width - width) >> 1;
101 ypos += (map->gx_pixelmap_height - height) >> 1;
102
103 gx_canvas_pixelmap_blend(xpos, ypos, &scaled_map, alpha_value);
104
105 if (scaled_map.gx_pixelmap_data)
106 {
107 memory_free((VOID *)scaled_map.gx_pixelmap_data);
108 }
109
110 if (scaled_map.gx_pixelmap_aux_data)
111 {
112 memory_free((VOID *)scaled_map.gx_pixelmap_aux_data);
113 }
114 }
115
116 }
