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_resources.h"
6 #include "all_widgets_specifications.h"
7
8 GX_UBYTE alpha_value = 255;
9 GX_BOOL sprite_move_down = GX_TRUE;
10 extern GX_WINDOW *pSpriteScreen;
11
12 VOID rotate_memory_free(VOID *mem);
13 void move_sprite(void);
14
sprite_event_handler(GX_WINDOW * window,GX_EVENT * event_ptr)15 UINT sprite_event_handler(GX_WINDOW *window, GX_EVENT *event_ptr)
16 {
17 switch (event_ptr->gx_event_type)
18 {
19 case GX_SIGNAL(ID_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
20 alpha_value = (GX_UBYTE)event_ptr->gx_event_payload.gx_event_longdata;
21 gx_system_dirty_mark(&((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_apple_window);
22 break;
23
24 case GX_SIGNAL(ID_BIRD_SPRITE, GX_EVENT_SPRITE_COMPLETE):
25 gx_widget_hide(&((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_sprite_1);
26 move_sprite();
27 gx_widget_show(&((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_sprite_1);
28 break;
29
30 default:
31 return gx_window_event_process(window, event_ptr);
32 }
33
34 return 0;
35 }
36
move_sprite(void)37 void move_sprite(void)
38 {
39 GX_RECTANGLE size;
40 GX_SPRITE *sprite = &((SPRITE_SCREEN_CONTROL_BLOCK *)pSpriteScreen)->sprite_screen_sprite_1;
41
42 size = sprite->gx_widget_size;
43
44 if (sprite_move_down)
45 {
46 gx_utility_rectangle_shift(&size, 100, 117);
47 sprite_move_down = GX_FALSE;
48 }
49 else
50 {
51 gx_utility_rectangle_shift(&size, 100, -57);
52 sprite_move_down = GX_TRUE;
53 }
54 if (size.gx_rectangle_bottom > pSpriteScreen->gx_widget_size.gx_rectangle_bottom)
55 {
56 size.gx_rectangle_top -= pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
57 size.gx_rectangle_bottom -= pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
58 }
59 if (size.gx_rectangle_top < pSpriteScreen->gx_widget_size.gx_rectangle_top)
60 {
61 size.gx_rectangle_top += pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
62 size.gx_rectangle_bottom += pSpriteScreen->gx_widget_size.gx_rectangle_bottom;
63 }
64
65
66 if (size.gx_rectangle_right > pSpriteScreen->gx_widget_size.gx_rectangle_right)
67 {
68 size.gx_rectangle_left -= pSpriteScreen->gx_widget_size.gx_rectangle_right;
69 size.gx_rectangle_right -= pSpriteScreen->gx_widget_size.gx_rectangle_right;
70 }
71 gx_widget_resize(sprite, &size);
72 }
73
apple_window_draw(GX_WINDOW * window)74 VOID apple_window_draw(GX_WINDOW *window)
75 {
76 GX_PIXELMAP *map;
77 GX_PIXELMAP scaled_map;
78 int width;
79 int height;
80 int xpos;
81 int ypos;
82
83 gx_context_pixelmap_get(GX_PIXELMAP_ID_RED_APPLE, &map);
84
85 if(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 rotate_memory_free((VOID *)scaled_map.gx_pixelmap_data);
108 }
109 }
110 }
111 }
