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comparison examples/dynamic/main.c @ 201:31933f9ee70e

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Chkec in demo for dynamic rectangle creation and button.
author wycc@wycc-desktop
date Sun, 07 Dec 2008 18:00:06 +0800
parents
children 8d9d717c9300
comparison
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200:1528209c6c92 201:31933f9ee70e
1 /*! \file
2 *
3 * svg2code_ex is an example that show programmers how to create a
4 * menu with MadButterfly.
5 *
6 */
7 #include <stdio.h>
8 #include <mb.h>
9 #include "menu.h"
10 #include "button.h"
11
12
13 typedef struct _engine engine_t;
14 struct _engine {
15 X_MB_runtime_t *rt;
16 redraw_man_t *rdman;
17 menu_t *menu;
18 button_t *button;
19 int state;
20 co_aix orx,ory;
21 int start_x,start_y;
22 observer_t *obs1,*obs2;
23 shape_t *rect;
24 co_aix rx,ry;
25 };
26 engine_t *engine_init()
27 {
28
29 X_MB_runtime_t *rt;
30 rt = X_MB_new(":0.0", 800, 600);
31 engine_t *en = (engine_t *) malloc(sizeof(engine_t));
32
33 en->rt = rt;
34 en->rdman = X_MB_rdman(rt);
35 return en;
36 }
37
38 void engine_close(engine_t *en)
39 {
40 /*
41 * Start handle connections, includes one to X server.
42 * User start to interact with the application.
43 */
44 X_MB_handle_connection(en->rt);
45
46 /*
47 * Clean
48 */
49 menu_free(en->menu);
50 X_MB_free(en->rt);
51 free(en);
52 }
53 #define COORD_SHOW(group) coord_show(group);rdman_coord_changed(en->rdman, group)
54 #define COORD_HIDE(group) coord_hide(group);rdman_coord_changed(en->rdman, group)
55
56 #define CMOUSE(e) (coord_get_mouse_event(e))
57
58
59
60 static void button_move(event_t *evt, void *arg)
61 {
62 engine_t *en = (engine_t *) arg;
63
64
65 printf("Mouse move\n");
66 COORD_SHOW(en->button->active);
67 rdman_coord_changed(en->rdman,en->button->root_coord);
68 rdman_redraw_changed(en->rdman);
69 }
70 static void button_out(event_t *evt, void *arg)
71 {
72 engine_t *en = (engine_t *) arg;
73
74 printf("mouse out\n");
75 COORD_HIDE(en->button->active);
76 rdman_coord_changed(en->rdman,en->button->root_coord);
77 rdman_redraw_changed(en->rdman);
78 }
79
80 void button_pressed(event_t *evt, void *arg)
81 {
82 printf("Pressed\n");
83 }
84
85 void engine_add_button(engine_t *en, coord_t *normal, coord_t *active, void (*func)())
86 {
87 active->matrix[2] = 200;
88 active->matrix[5] = 200;
89 normal->matrix[2] = 200;
90 normal->matrix[5] = 200;
91 COORD_HIDE(en->button->active);
92 rdman_coord_changed(en->rdman,en->button->root_coord);
93 rdman_redraw_changed(en->rdman);
94 subject_add_event_observer(CMOUSE(normal), EVT_MOUSE_MOVE, button_move,en);
95 subject_add_event_observer(CMOUSE(active), EVT_MOUSE_OUT, button_out,en);
96 subject_add_event_observer(CMOUSE(active), EVT_MOUSE_BUT_RELEASE, button_pressed,en);
97 }
98
99
100 void coord_move(coord_t *c, co_aix x, co_aix y)
101 {
102 c->matrix[2] = x;
103 c->matrix[5] = y;
104 }
105
106
107
108 static void add_rect_move(event_t *evt, void *arg)
109 {
110 engine_t *en = (engine_t *) arg;
111 mouse_event_t *mev = (mouse_event_t *) evt;
112
113 printf("resize rectangle\n");
114 sh_rect_set(en->rect, en->start_x, en->start_y, mev->x - en->start_x, mev->y-en->start_y,en->rx,en->ry);
115 rdman_shape_changed(en->rdman,en->rect);
116 rdman_redraw_changed(en->rdman);
117 }
118
119 static void add_rect_release(event_t *evt, void *arg)
120 {
121 engine_t *en = (engine_t *) arg;
122 mouse_event_t *mev = (mouse_event_t *) evt;
123
124 printf("rectangle done\n");
125 subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs1);
126 subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs2);
127 }
128
129 static void add_rect_2(event_t *evt, void *arg)
130 {
131 engine_t *en = (engine_t *) arg;
132 mouse_event_t *mev = (mouse_event_t *) evt;
133 paint_t *color;
134
135 printf("select first point\n");
136 // Add an rect path
137
138 en->start_x = mev->x;
139 en->start_y = mev->y;
140 subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs1);
141 subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs2);
142 en->obs1 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_MOVE, add_rect_move, en);
143 en->obs2 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_BUT_RELEASE, add_rect_release, en);
144 }
145
146 static void add_rect_2_move(event_t *evt, void *arg)
147 {
148 engine_t *en = (engine_t *) arg;
149 mouse_event_t *mev = (mouse_event_t *) evt;
150
151 sh_rect_set(en->rect, mev->x, mev->y, 50,50,en->rx,en->ry);
152 rdman_shape_changed(en->rdman,en->rect);
153 rdman_redraw_changed(en->rdman);
154 }
155
156 static void add_rect(event_t *evt, void *arg)
157 {
158 engine_t *en = (engine_t *) arg;
159 mouse_event_t *mev = (mouse_event_t *) evt;
160 paint_t *color;
161
162 printf("menut selected\n");
163 en->obs1 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_BUT_PRESS, add_rect_2, en);
164 en->obs2 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_MOVE, add_rect_2_move, en);
165 en->rect = rdman_shape_rect_new(en->rdman, mev->x, mev->y, 50 , 50, en->rx, en->ry);
166 // Paint it with color
167 color = rdman_paint_color_new(en->rdman, 0.800000, 0.800000, 0.400000, 1.000000);
168 rdman_paint_fill(en->rdman, color, en->rect);
169 // Add to the stage
170 rdman_add_shape(en->rdman, en->rect, en->menu->root_coord);
171 }
172
173
174
175
176
177 int main(int argc, char * const argv[]) {
178 subject_t *subject;
179 engine_t *en;
180
181 en = engine_init();
182 en->menu = menu_new(en->rdman, en->rdman->root_coord);
183 en->button = button_new(en->rdman, en->rdman->root_coord);
184 engine_add_button(en, en->button->normal, en->button->active, button_pressed);
185
186 en->rx = 0;
187 en->ry = 0;
188
189 /*
190 * Register observers to subjects of events for objects.
191 */
192 subject = coord_get_mouse_event(en->menu->rect);
193 subject_add_event_observer(subject, EVT_MOUSE_BUT_RELEASE, add_rect, en);
194
195
196 engine_close(en);
197
198 return 0;
199 }
200
201 /* vim: set ts=4 */