nuclear@14: #include <string.h>
nuclear@6: #include <assert.h>
nuclear@6: #include "imtk.h"
nuclear@6: #include "state.h"
nuclear@6: #include "draw.h"
nuclear@6: 
nuclear@6: 
nuclear@6: #define CHECKBOX_SIZE	14
nuclear@6: 
nuclear@6: 
nuclear@11: static void draw_checkbox(int id, const char *label, int x, int y, int state, int over);
nuclear@6: 
nuclear@6: int imtk_checkbox(int id, const char *label, int x, int y, int state)
nuclear@6: {
nuclear@6: 	int sz = CHECKBOX_SIZE;
nuclear@20: 	int full_size, over = 0;
nuclear@6: 
nuclear@6: 	assert(id >= 0);
nuclear@6: 
nuclear@20: 	if(x == IMTK_AUTO || y == IMTK_AUTO) {
nuclear@20: 		imtk_layout_get_pos(&x, &y);
nuclear@20: 	}
nuclear@20: 
nuclear@20: 	full_size = sz + imtk_string_size(label) + 5;
nuclear@20: 	if(imtk_hit_test(x, y, full_size, sz)) {
nuclear@6: 		imtk_set_hot(id);
nuclear@6: 		over = 1;
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	if(imtk_button_state(IMTK_LEFT_BUTTON)) {
nuclear@6: 		if(over) {
nuclear@6: 			imtk_set_active(id);
nuclear@6: 		}
nuclear@6: 	} else { /* mouse button up */
nuclear@6: 		if(imtk_is_active(id)) {
nuclear@6: 			imtk_set_active(-1);
nuclear@6: 			if(imtk_is_hot(id) && over) {
nuclear@6: 				state = !state;
nuclear@6: 			}
nuclear@6: 		}
nuclear@6: 	}
nuclear@6: 
nuclear@11: 	draw_checkbox(id, label, x, y, state, over);
nuclear@20: 	imtk_layout_advance(full_size, sz);
nuclear@6: 	return state;
nuclear@6: }
nuclear@6: 
nuclear@14: static float v[][2] = {
nuclear@14: 	{-0.2, 0.63},	/* 0 */
nuclear@14: 	{0.121, 0.325},	/* 1 */
nuclear@14: 	{0.15, 0.5},	/* 2 */
nuclear@14: 	{0.28, 0.125},	/* 3 */
nuclear@14: 	{0.38, 0.33},	/* 4 */
nuclear@14: 	{0.42, -0.122},	/* 5 */
nuclear@14: 	{0.58, 0.25},	/* 6 */
nuclear@14: 	{0.72, 0.52},	/* 7 */
nuclear@14: 	{0.625, 0.65},	/* 8 */
nuclear@14: 	{0.89, 0.78},	/* 9 */
nuclear@14: 	{0.875, 0.92},	/* 10 */
nuclear@14: 	{1.13, 1.145}	/* 11 */
nuclear@14: };
nuclear@14: #define TRI(a, b, c)	(glVertex2fv(v[a]), glVertex2fv(v[b]), glVertex2fv(v[c]))
nuclear@14: 
nuclear@11: static void draw_checkbox(int id, const char *label, int x, int y, int state, int over)
nuclear@6: {
nuclear@6: 	static const int sz = CHECKBOX_SIZE;
nuclear@14: 	unsigned int attr = 0;
nuclear@14: 	float tcol[4], bcol[4];
nuclear@6: 
nuclear@11: 	if(over) {
nuclear@14: 		attr |= IMTK_FOCUS_BIT;
nuclear@6: 	}
nuclear@14: 	if(imtk_is_active(id)) {
nuclear@14: 		attr |= IMTK_PRESS_BIT;
nuclear@14: 	}
nuclear@14: 	memcpy(tcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof tcol);
nuclear@14: 	memcpy(bcol, imtk_get_color(IMTK_TOP_COLOR | attr), sizeof bcol);
nuclear@6: 
nuclear@14: 	imtk_draw_rect(x, y, sz, sz, tcol, bcol);
nuclear@6: 	imtk_draw_frame(x, y, sz, sz, FRAME_INSET);
nuclear@6: 
nuclear@6: 	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
nuclear@6: 	if(state) {
nuclear@13: 		glMatrixMode(GL_MODELVIEW);
nuclear@13: 		glPushMatrix();
nuclear@13: 		glTranslatef(x, y + sz, 0);
nuclear@13: 		glScalef(sz * 1.2, -sz * 1.3, 1);
nuclear@6: 
nuclear@13: 		glBegin(GL_TRIANGLES);
nuclear@13: 		glColor4fv(imtk_get_color(IMTK_CHECK_COLOR));
nuclear@13: 		TRI(0, 1, 2);
nuclear@13: 		TRI(1, 3, 2);
nuclear@13: 		TRI(3, 4, 2);
nuclear@13: 		TRI(3, 5, 4);
nuclear@13: 		TRI(4, 5, 6);
nuclear@13: 		TRI(4, 6, 7);
nuclear@13: 		TRI(4, 7, 8);
nuclear@13: 		TRI(8, 7, 9);
nuclear@13: 		TRI(8, 9, 10);
nuclear@13: 		TRI(10, 9, 11);
nuclear@6: 		glEnd();
nuclear@6: 
nuclear@13: 		glPopMatrix();
nuclear@6: 	}
nuclear@6: 
nuclear@13: 	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
nuclear@6: 	imtk_draw_string(x + sz + 5, y + sz - 2, label);
nuclear@6: }
nuclear@6: