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 "partial_frame_buffer_16bpp_resources.h"
8 #include "partial_frame_buffer_16bpp_specifications.h"
9
10 extern VOID memory_free(VOID *mem);
11
12 #define RATIO_ONE 100
13
14 INT x_ratio = RATIO_ONE;
15 INT y_ratio = RATIO_ONE;
16
17 GX_RESOURCE_ID resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FOOT;
18
resize_ratio_format(GX_NUMERIC_PROMPT * prompt,INT value)19 VOID resize_ratio_format(GX_NUMERIC_PROMPT *prompt, INT value)
20 {
21 INT index = 0;
22
23 /* Transfer float value to string. */
24 prompt->gx_numeric_prompt_buffer[index++] = '0' + (value / RATIO_ONE);
25 prompt->gx_numeric_prompt_buffer[index++] = '.';
26 prompt->gx_numeric_prompt_buffer[index++] = '0' + (value % RATIO_ONE) / 10;
27 prompt->gx_numeric_prompt_buffer[index++] = '0' + (value % RATIO_ONE) % 10;
28 prompt->gx_numeric_prompt_buffer[index] = '\0';
29 }
30
resize_screen_event_handler(GX_WINDOW * window,GX_EVENT * myevent)31 UINT resize_screen_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
32 {
33 switch (myevent->gx_event_type)
34 {
35 case GX_SIGNAL(ID_SLIDER_WIDTH, GX_EVENT_SLIDER_VALUE):
36 x_ratio = myevent->gx_event_payload.gx_event_longdata;
37 gx_numeric_prompt_value_set(&resize_screen.resize_screen_width, x_ratio);
38 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
39 break;
40
41 case GX_SIGNAL(ID_SLIDER_HEIGHT, GX_EVENT_SLIDER_VALUE):
42 y_ratio = myevent->gx_event_payload.gx_event_longdata;
43 gx_numeric_prompt_value_set(&resize_screen.resize_screen_height, y_ratio);
44 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
45 break;
46
47 case GX_SIGNAL(ID_RADIO_FOOT, GX_EVENT_RADIO_SELECT):
48 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FOOT;
49 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
50 break;
51
52 case GX_SIGNAL(ID_RADIO_FOOT_ALPHA, GX_EVENT_RADIO_SELECT):
53 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_APPLE;
54 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
55 break;
56
57 case GX_SIGNAL(ID_RADIO_FISH, GX_EVENT_RADIO_SELECT):
58 resize_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FISH;
59 gx_system_dirty_mark((GX_WIDGET *)&resize_screen.resize_screen_resize_window);
60 break;
61
62 default:
63 return gx_window_event_process(window, myevent);
64 }
65 return 0;
66 }
67
resize_window_draw(GX_WINDOW * window)68 VOID resize_window_draw(GX_WINDOW *window)
69 {
70 INT xpos;
71 INT ypos;
72 GX_PIXELMAP *pixelmap;
73 GX_RECTANGLE win_size;
74 GX_PIXELMAP destination;
75 INT width, height;
76
77 gx_window_draw((GX_WINDOW*)window);
78
79 gx_context_pixelmap_get(resize_pixelmap_id, &pixelmap);
80 win_size = resize_screen.resize_screen_resize_window.gx_widget_size;
81
82 xpos = (win_size.gx_rectangle_right + win_size.gx_rectangle_left -pixelmap->gx_pixelmap_width) >> 1;
83 ypos = (win_size.gx_rectangle_top + win_size.gx_rectangle_bottom - pixelmap->gx_pixelmap_height) >> 1;
84
85 width = (pixelmap->gx_pixelmap_width * x_ratio / RATIO_ONE);
86 height = (pixelmap->gx_pixelmap_height * y_ratio / RATIO_ONE);
87
88 if (x_ratio == RATIO_ONE && y_ratio == RATIO_ONE)
89 {
90 /* Draw source pixelmap. */
91 gx_canvas_pixelmap_draw(xpos, ypos, pixelmap);
92 }
93 else if (gx_utility_pixelmap_resize(pixelmap, &destination, width, height) == GX_SUCCESS)
94 {
95 xpos += (pixelmap->gx_pixelmap_width - destination.gx_pixelmap_width) >> 1;
96 ypos += (pixelmap->gx_pixelmap_height - destination.gx_pixelmap_height) >> 1;
97
98 /* Draw resized pixelmap. */
99 gx_canvas_pixelmap_draw(xpos, ypos, &destination);
100
101 if (destination.gx_pixelmap_data)
102 {
103 memory_free((VOID *)destination.gx_pixelmap_data);
104 }
105
106 if (destination.gx_pixelmap_aux_data)
107 {
108 memory_free((VOID *)destination.gx_pixelmap_aux_data);
109 }
110 }
111 }
112
