1
2 /****************************************************************************
3
4 GLUI User Interface Toolkit
5 ---------------------------
6
7 glui_checkbox - GLUI_Checkbox control class
8
9
10 --------------------------------------------------
11
12 Copyright (c) 1998 Paul Rademacher
13
14 WWW: http://sourceforge.net/projects/glui/
15 Forums: http://sourceforge.net/forum/?group_id=92496
16
17 This software is provided 'as-is', without any express or implied
18 warranty. In no event will the authors be held liable for any damages
19 arising from the use of this software.
20
21 Permission is granted to anyone to use this software for any purpose,
22 including commercial applications, and to alter it and redistribute it
23 freely, subject to the following restrictions:
24
25 1. The origin of this software must not be misrepresented; you must not
26 claim that you wrote the original software. If you use this software
27 in a product, an acknowledgment in the product documentation would be
28 appreciated but is not required.
29 2. Altered source versions must be plainly marked as such, and must not be
30 misrepresented as being the original software.
31 3. This notice may not be removed or altered from any source distribution.
32
33 *****************************************************************************/
34
35 #include "glui_internal_control.h"
36
37 /****************************** GLUI_Checkbox::GLUI_Checkbox() **********/
38
GLUI_Checkbox(GLUI_Node * parent,const char * name,int * value_ptr,int id,GLUI_CB cb)39 GLUI_Checkbox::GLUI_Checkbox( GLUI_Node *parent,
40 const char *name, int *value_ptr,
41 int id,
42 GLUI_CB cb )
43 {
44 common_init();
45
46 set_ptr_val( value_ptr );
47 set_name( name );
48 user_id = id;
49 callback = cb;
50
51 parent->add_control( this );
52
53 init_live();
54 }
55
56 /****************************** GLUI_Checkbox::mouse_down_handler() **********/
57
mouse_down_handler(int local_x,int local_y)58 int GLUI_Checkbox::mouse_down_handler( int local_x, int local_y )
59 {
60 orig_value = int_val;
61 int_val = !int_val;
62
63 currently_inside = true;
64 redraw();
65
66 return false;
67 }
68
69
70 /****************************** GLUI_Checkbox::mouse_up_handler() **********/
71
mouse_up_handler(int local_x,int local_y,bool inside)72 int GLUI_Checkbox::mouse_up_handler( int local_x, int local_y, bool inside )
73 {
74 if ( NOT inside ) { /* undo effect on value */
75 int_val = orig_value;
76 }
77 else {
78 set_int_val( int_val );
79
80 /*** Invoke the callback ***/
81 execute_callback();
82 }
83
84 return false;
85 }
86
87
88 /****************************** GLUI_Checkbox::mouse_held_down_handler() ******/
89
mouse_held_down_handler(int local_x,int local_y,bool inside)90 int GLUI_Checkbox::mouse_held_down_handler( int local_x, int local_y,
91 bool inside)
92 {
93 /********** Toggle checked and unchecked bitmap if we're entering or
94 leaving the checkbox area **********/
95 if ( inside != currently_inside ) {
96 int_val = !int_val;
97 currently_inside = inside;
98 redraw();
99 }
100
101 return false;
102 }
103
104
105 /****************************** GLUI_Checkbox::key_handler() **********/
106
key_handler(unsigned char key,int modifiers)107 int GLUI_Checkbox::key_handler( unsigned char key,int modifiers )
108 {
109 return false;
110 }
111
112
113 /****************************** GLUI_Checkbox::draw() **********/
114
draw(int x,int y)115 void GLUI_Checkbox::draw( int x, int y )
116 {
117 GLUI_DRAWINGSENTINAL_IDIOM
118
119 if ( int_val != 0 ) {
120 if ( enabled )
121 glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_ON, 0, 0 );
122 else
123 glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_ON_DIS, 0, 0 );
124 }
125 else {
126 if ( enabled )
127 glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_OFF, 0, 0 );
128 else
129 glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_OFF_DIS, 0, 0 );
130 }
131
132 draw_active_area();
133
134 draw_name( text_x_offset, 10);
135 }
136
137 /**************************** GLUI_Checkbox::draw_active_area() **************/
138
draw_active_area(void)139 void GLUI_Checkbox::draw_active_area( void )
140 {
141 GLUI_DRAWINGSENTINAL_IDIOM
142 int text_width, left, right;
143
144 text_width = _glutBitmapWidthString( glui->font, name.c_str() );
145 left = text_x_offset-3;
146 right = left + 7 + text_width;
147
148 if ( active ) {
149 glEnable( GL_LINE_STIPPLE );
150 glLineStipple( 1, 0x5555 );
151 glColor3f( 0., 0., 0. );
152 } else {
153 glColor3ubv( glui->bkgd_color );
154 }
155
156 glBegin( GL_LINE_LOOP );
157 glVertex2i(left,0); glVertex2i( right,0);
158 glVertex2i(right,h+1); glVertex2i( left,h+1);
159 glEnd();
160
161 glDisable( GL_LINE_STIPPLE );
162 }
163
164
165 /************************************ GLUI_Checkbox::update_size() **********/
166
update_size(void)167 void GLUI_Checkbox::update_size( void )
168 {
169 int text_size;
170
171 if ( NOT glui )
172 return;
173
174 text_size = _glutBitmapWidthString( glui->font, name.c_str() );
175
176 /* if ( w < text_x_offset + text_size + 6 ) */
177 w = text_x_offset + text_size + 6 ;
178 }
179
180
181 /********************************* GLUI_Checkbox::set_int_val() **************/
182
set_int_val(int new_val)183 void GLUI_Checkbox::set_int_val( int new_val )
184 {
185 int_val = new_val;
186
187 /*** Update the variable we're (possibly) pointing to ***/
188 output_live(true);
189 redraw();
190 }
191