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 "gx_canvas.h"
6
7 #include "all_widgets_1bpp_resources.h"
8 #include "all_widgets_1bpp_specifications.h"
9
10 extern VOID memory_free(VOID *mem);
11
12 float x_ratio = 1;
13 float y_ratio = 1;
14 GX_RESOURCE_ID resize_pixelmap_id = GX_PIXELMAP_ID_ICON_FOOT;
15
update_prompt_text(GX_RESOURCE_ID id,float value)16 VOID update_prompt_text(GX_RESOURCE_ID id, float value)
17 {
18 GX_PROMPT *pp;
19 static GX_CHAR text[10];
20 GX_STRING string;
21 INT index = 0;
22
23 gx_widget_find((GX_WIDGET *)&resize_screen, (USHORT)id, 0, &pp);
24
25 if (pp)
26 {
27 /* Transfer float value to string. */
28 text[index++] = '0' + (int)(value);
29 text[index++] = '.';
30 text[index++] = '0' + (int)(value * 10) % 10;
31 text[index++] = '0' + (int)(value * 100) % 10;
32 text[index] = '\0';
33
34 /* Reset prompt text. */
35 string.gx_string_ptr = text;
36 string.gx_string_length = index;
37 gx_prompt_text_set_ext(pp, &string);
38 }
39 }
40
resize_screen_event_handler(GX_WINDOW * window,GX_EVENT * myevent)41 UINT resize_screen_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
42 {
43 UINT status = 0;
44 INT value;
45
46 switch (myevent->gx_event_type)
47 {
48 case GX_SIGNAL(ID_SLIDER_WIDTH, GX_EVENT_SLIDER_VALUE):
49 value = myevent->gx_event_payload.gx_event_longdata;
50 value -= 50;
51 x_ratio = 1 + (float)value / 100;
52 update_prompt_text(ID_WIDTH_DISPLAY, x_ratio);
53 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
54 break;
55
56 case GX_SIGNAL(ID_SLIDER_HEIGHT, GX_EVENT_SLIDER_VALUE):
57 value = myevent->gx_event_payload.gx_event_longdata;
58 value -= 50;
59 y_ratio = 1 + (float)value / 100;
60 update_prompt_text(ID_HEIGHT_DISPLAY, y_ratio);
61 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
62 break;
63
64 case GX_SIGNAL(ID_RADIO_FOOT, GX_EVENT_RADIO_SELECT):
65 resize_pixelmap_id = GX_PIXELMAP_ID_ICON_FOOT;
66 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
67 break;
68
69 case GX_SIGNAL(ID_RADIO_FOOT_ALPHA, GX_EVENT_RADIO_SELECT):
70 resize_pixelmap_id = GX_PIXELMAP_ID_RED_APPLE;
71 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
72 break;
73
74 case GX_SIGNAL(ID_RADIO_FISH, GX_EVENT_RADIO_SELECT):
75 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FISH;
76 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
77 break;
78
79 default:
80 status = next_button_handler(window, myevent);
81 break;
82 }
83 return status;
84 }
85
resize_window_draw(GX_WINDOW * window)86 VOID resize_window_draw(GX_WINDOW *window)
87 {
88 INT xpos;
89 INT ypos;
90 GX_PIXELMAP *pixelmap;
91 GX_RECTANGLE win_size;
92 GX_PIXELMAP destination;
93 INT width, height;
94
95 gx_window_draw((GX_WINDOW*)window);
96
97 gx_context_pixelmap_get(resize_pixelmap_id, &pixelmap);
98 win_size = resize_screen.resize_screen_resize_window.gx_widget_size;
99
100 xpos = (win_size.gx_rectangle_right + win_size.gx_rectangle_left -pixelmap->gx_pixelmap_width) >> 1;
101 ypos = (win_size.gx_rectangle_top + win_size.gx_rectangle_bottom - pixelmap->gx_pixelmap_height) >> 1;
102
103 width = (int)(pixelmap->gx_pixelmap_width * x_ratio);
104 height = (int)(pixelmap->gx_pixelmap_height * y_ratio);
105
106 if (x_ratio == 1 && y_ratio == 1)
107 {
108 /* Draw source pixelmap. */
109 gx_canvas_pixelmap_draw(xpos, ypos, pixelmap);
110 }
111 else if (gx_utility_pixelmap_resize(pixelmap, &destination, width, height) == GX_SUCCESS)
112 {
113 xpos += (pixelmap->gx_pixelmap_width - destination.gx_pixelmap_width) >> 1;
114 ypos += (pixelmap->gx_pixelmap_height - destination.gx_pixelmap_height) >> 1;
115
116 /* Draw resized pixelmap. */
117 gx_canvas_pixelmap_draw(xpos, ypos, &destination);
118
119 if (destination.gx_pixelmap_data)
120 {
121 memory_free((VOID *)destination.gx_pixelmap_data);
122 }
123
124 if (destination.gx_pixelmap_aux_data)
125 {
126 memory_free((VOID *)destination.gx_pixelmap_aux_data);
127 }
128 }
129 }
130
