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_8bpp_rotated_cw_binary_resources.h"
6 #include "all_widgets_8bpp_rotated_cw_binary_specifications.h"
7
8
9 GX_WINDOW *pLineWin = &lines_screen.lines_screen_line_window;
10 int lines_screen_line_angle = 0;
11 int lines_screen_line_width = 1;
12 GX_BOOL lines_screen_rounded = GX_FALSE;
13 GX_RESOURCE_ID lines_screen_line_color = GX_COLOR_ID_BLACK;
14 GX_UBYTE lines_screen_brush_alpha = 255;
15 int line_x1;
16 int line_x2;
17 int line_y1;
18 int line_y2;
19 int lines_screen_line_length = 100;
20
21 /* Define prototypes. */
22 VOID PopulateDropList(void);
23
calculate_line_ends(VOID)24 VOID calculate_line_ends(VOID)
25 {
26 INT scaled_angle;
27 INT x_dist;
28 INT y_dist;
29
30 INT x_center = (pLineWin->gx_widget_size.gx_rectangle_left + pLineWin->gx_widget_size.gx_rectangle_right) / 2;
31 INT y_center = (pLineWin->gx_widget_size.gx_rectangle_top + pLineWin->gx_widget_size.gx_rectangle_bottom) / 2;
32
33 scaled_angle = GX_FIXED_VAL_MAKE(lines_screen_line_angle);
34 x_dist = GX_FIXED_VAL_TO_INT(gx_utility_math_cos(scaled_angle) * lines_screen_line_length);
35 y_dist = GX_FIXED_VAL_TO_INT(gx_utility_math_sin(scaled_angle) * lines_screen_line_length);
36
37 line_x1 = x_center - x_dist;
38 line_x2 = x_center + x_dist;
39 line_y1 = y_center - y_dist;
40 line_y2 = y_center + y_dist;
41 }
42
update_prompt(GX_RESOURCE_ID id,INT value)43 VOID update_prompt(GX_RESOURCE_ID id, INT value)
44 {
45 GX_PROMPT *pp;
46 static GX_CHAR val[10];
47
48 gx_widget_find((GX_WIDGET *)&lines_screen, (USHORT)id, 0, &pp);
49
50 if (pp)
51 {
52 gx_utility_ltoa(value, val, 10);
53 gx_prompt_text_set(pp, val);
54 }
55 }
56
main_event_handler(GX_WINDOW * window,GX_EVENT * myevent)57 UINT main_event_handler(GX_WINDOW *window, GX_EVENT *myevent)
58 {
59 UINT status = 0;
60
61 switch(myevent -> gx_event_type)
62 {
63 case GX_SIGNAL(ID_BRUSH_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
64 lines_screen_brush_alpha = (GX_UBYTE)myevent->gx_event_payload.gx_event_longdata;
65 update_prompt(ID_BRUSH_ALPHA_PROMPT, lines_screen_brush_alpha);
66 gx_system_dirty_mark(pLineWin);
67 break;
68
69 case GX_SIGNAL(ID_LINE_WIDTH, GX_EVENT_SLIDER_VALUE):
70 lines_screen_line_width = myevent ->gx_event_payload.gx_event_longdata;
71 update_prompt(ID_WIDTH_DISPLAY, lines_screen_line_width);
72 gx_system_dirty_mark(pLineWin);
73 break;
74
75 case GX_SIGNAL(ID_LINE_ANGLE, GX_EVENT_SLIDER_VALUE):
76 lines_screen_line_angle = myevent ->gx_event_payload.gx_event_longdata;
77 update_prompt(ID_ANGLE_DISPLAY, lines_screen_line_angle);
78 calculate_line_ends();
79 gx_system_dirty_mark(pLineWin);
80 break;
81
82 case GX_SIGNAL(ID_ROUNDED, GX_EVENT_TOGGLE_ON):
83 lines_screen_rounded = GX_TRUE;
84 gx_system_dirty_mark(pLineWin);
85 break;
86
87 case GX_SIGNAL(ID_ROUNDED, GX_EVENT_TOGGLE_OFF):
88 lines_screen_rounded = GX_FALSE;
89 gx_system_dirty_mark(pLineWin);
90 break;
91
92 case GX_SIGNAL(ID_COLOR_BLACK, GX_EVENT_RADIO_SELECT):
93 lines_screen_line_color = GX_COLOR_ID_BLACK;
94 gx_system_dirty_mark(pLineWin);
95 break;
96
97 case GX_SIGNAL(ID_COLOR_WHITE, GX_EVENT_RADIO_SELECT):
98 lines_screen_line_color = GX_COLOR_ID_WHITE;
99 gx_system_dirty_mark(pLineWin);
100 break;
101
102 case GX_SIGNAL(ID_COLOR_ORANGE, GX_EVENT_RADIO_SELECT):
103 lines_screen_line_color = GX_COLOR_ID_ORANGE;
104 gx_system_dirty_mark(pLineWin);
105 break;
106
107 default:
108 status = next_button_handler(window, myevent);
109 break;
110 }
111 return status;
112 }
113
line_win_draw(GX_WINDOW * window)114 VOID line_win_draw(GX_WINDOW *window)
115 {
116 ULONG brush_style = 0;
117 GX_BRUSH *brush;
118 GX_RECTANGLE *size;
119
120 gx_window_draw((GX_WINDOW*) window);
121
122 gx_context_brush_get(&brush);
123 brush -> gx_brush_alpha = lines_screen_brush_alpha;
124
125 if (lines_screen_rounded)
126 {
127 brush_style |= GX_BRUSH_ROUND;
128 }
129 gx_context_brush_define(lines_screen_line_color, window ->gx_widget_normal_fill_color, brush_style);
130 gx_context_brush_width_set(lines_screen_line_width);
131
132 /* Draw pattern lines. */
133 size = &window->gx_widget_size;
134
135 gx_context_brush_pattern_set(0xf8fcfeff);
136 gx_canvas_line_draw(size->gx_rectangle_left + 5, size->gx_rectangle_top + 5, size->gx_rectangle_left + 5, size->gx_rectangle_bottom - 5);
137 gx_context_brush_pattern_set(0xf0f0f0f0);
138 gx_canvas_line_draw(size->gx_rectangle_left + 5, size->gx_rectangle_top + 5, size->gx_rectangle_right - 5, size->gx_rectangle_top + 5);
139 gx_context_brush_pattern_set(0xaaaaaaaa);
140 gx_canvas_line_draw(size->gx_rectangle_left + 5, size->gx_rectangle_bottom - 5, size->gx_rectangle_right - 5, size->gx_rectangle_bottom - 5);
141 gx_context_brush_pattern_set(0x33333333);
142 gx_canvas_line_draw(size->gx_rectangle_right - 5, size->gx_rectangle_top + 5, size->gx_rectangle_right - 5, size->gx_rectangle_bottom - 5);
143
144 gx_context_brush_pattern_set(0);
145 calculate_line_ends();
146 gx_canvas_line_draw(line_x1, line_y1, line_x2, line_y2);
147 }
148
