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_16bpp_rotated_resources.h"
8 #include "all_widgets_16bpp_rotated_specifications.h"
9
10 extern VOID dynamic_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_ROTATE_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
21 gx_widget_find((GX_WIDGET *)&resize_screen, (USHORT)id, 0, &pp);
22
23 if (pp)
24 {
25 /* Transfer float value to string. */
26 text[0] = '0' + (int)(value);
27 text[1] = '.';
28 text[2] = '0' + (int)(value * 10) % 10;
29 text[3] = '0' + (int)(value * 100) % 10;
30 text[4] = '\0';
31
32 /* Reset prompt text. */
33 gx_prompt_text_set(pp, text);
34 }
35 }
36
resize_screen_event_handler(GX_WINDOW * window,GX_EVENT * myevent)37 UINT resize_screen_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
38 {
39 UINT status = 0;
40 INT value;
41
42 switch (myevent->gx_event_type)
43 {
44 case GX_SIGNAL(ID_SLIDER_WIDTH, GX_EVENT_SLIDER_VALUE):
45 value = myevent->gx_event_payload.gx_event_longdata;
46 value -= 50;
47 x_ratio = 1 + (float)value / 100;
48 update_prompt_text(ID_WIDTH_DISPLAY, x_ratio);
49 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
50 break;
51
52 case GX_SIGNAL(ID_SLIDER_HEIGHT, GX_EVENT_SLIDER_VALUE):
53 value = myevent->gx_event_payload.gx_event_longdata;
54 value -= 50;
55 y_ratio = 1 + (float)value / 100;
56 update_prompt_text(ID_HEIGHT_DISPLAY, y_ratio);
57 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
58 break;
59
60 case GX_SIGNAL(ID_RADIO_FOOT, GX_EVENT_RADIO_SELECT):
61 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FOOT;
62 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
63 break;
64
65 case GX_SIGNAL(ID_RADIO_FOOT_ALPHA, GX_EVENT_RADIO_SELECT):
66 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_APPLE;
67 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
68 break;
69
70 case GX_SIGNAL(ID_RADIO_FISH, GX_EVENT_RADIO_SELECT):
71 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FISH;
72 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
73 break;
74
75 default:
76 status = next_button_handler(window, myevent);
77 break;
78 }
79 return status;
80 }
81
resize_window_draw(GX_WINDOW * window)82 VOID resize_window_draw(GX_WINDOW *window)
83 {
84 INT xpos;
85 INT ypos;
86 GX_PIXELMAP *pixelmap;
87 GX_RECTANGLE win_size;
88 GX_PIXELMAP destination;
89 INT width, height;
90
91 gx_window_draw((GX_WINDOW*)window);
92
93 gx_context_pixelmap_get(resize_pixelmap_id, &pixelmap);
94 win_size = resize_screen.resize_screen_resize_window.gx_widget_size;
95
96 xpos = (win_size.gx_rectangle_right + win_size.gx_rectangle_left -pixelmap->gx_pixelmap_width) >> 1;
97 ypos = (win_size.gx_rectangle_top + win_size.gx_rectangle_bottom - pixelmap->gx_pixelmap_height) >> 1;
98
99 width = (int)(pixelmap->gx_pixelmap_width * x_ratio);
100 height = (int)(pixelmap->gx_pixelmap_height * y_ratio);
101
102 if (x_ratio == 1 && y_ratio == 1)
103 {
104 /* Draw source pixelmap. */
105 gx_canvas_pixelmap_draw(xpos, ypos, pixelmap);
106 }
107 else if (gx_utility_pixelmap_resize(pixelmap, &destination, width, height) == GX_SUCCESS)
108 {
109 xpos += (pixelmap->gx_pixelmap_width - destination.gx_pixelmap_width) >> 1;
110 ypos += (pixelmap->gx_pixelmap_height - destination.gx_pixelmap_height) >> 1;
111
112 /* Draw resized pixelmap. */
113 gx_canvas_pixelmap_draw(xpos, ypos, &destination);
114
115 if (destination.gx_pixelmap_data)
116 {
117 dynamic_memory_free((VOID *)destination.gx_pixelmap_data);
118 }
119
120 if (destination.gx_pixelmap_aux_data)
121 {
122 dynamic_memory_free((VOID *)destination.gx_pixelmap_aux_data);
123 }
124 }
125 }
126
