X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=blobdiff_plain;f=src%2Fimtk%2Fcheckbox.c;fp=src%2Fimtk%2Fcheckbox.c;h=6efd0a3f49520324f6424f6708056a700f5a2389;hp=0000000000000000000000000000000000000000;hb=2f14a35e7d557da12f24056267b911f24774aa18;hpb=5eefe7b94c8d6c6caa2c10e3835ab0831a3c42a1

diff --git a/src/imtk/checkbox.c b/src/imtk/checkbox.c
new file mode 100644
index 0000000..6efd0a3
--- /dev/null
+++ b/src/imtk/checkbox.c
@@ -0,0 +1,109 @@
+#include <string.h>
+#include <assert.h>
+#include "imtk.h"
+#include "state.h"
+#include "draw.h"
+
+
+#define CHECKBOX_SIZE	14
+
+
+static void draw_checkbox(int id, const char *label, int x, int y, int state, int over);
+
+int imtk_checkbox(int id, const char *label, int x, int y, int state)
+{
+	int sz = CHECKBOX_SIZE;
+	int full_size, over = 0;
+
+	assert(id >= 0);
+
+	if(x == IMTK_AUTO || y == IMTK_AUTO) {
+		imtk_layout_get_pos(&x, &y);
+	}
+
+	full_size = sz + imtk_string_size(label) + 5;
+	if(imtk_hit_test(x, y, full_size, sz)) {
+		imtk_set_hot(id);
+		over = 1;
+	}
+
+	if(imtk_button_state(IMTK_LEFT_BUTTON)) {
+		if(over) {
+			imtk_set_active(id);
+		}
+	} else { /* mouse button up */
+		if(imtk_is_active(id)) {
+			imtk_set_active(-1);
+			if(imtk_is_hot(id) && over) {
+				state = !state;
+			}
+		}
+	}
+
+	draw_checkbox(id, label, x, y, state, over);
+	imtk_layout_advance(full_size, sz);
+	return state;
+}
+
+static float v[][2] = {
+	{-0.2, 0.63},	/* 0 */
+	{0.121, 0.325},	/* 1 */
+	{0.15, 0.5},	/* 2 */
+	{0.28, 0.125},	/* 3 */
+	{0.38, 0.33},	/* 4 */
+	{0.42, -0.122},	/* 5 */
+	{0.58, 0.25},	/* 6 */
+	{0.72, 0.52},	/* 7 */
+	{0.625, 0.65},	/* 8 */
+	{0.89, 0.78},	/* 9 */
+	{0.875, 0.92},	/* 10 */
+	{1.13, 1.145}	/* 11 */
+};
+#define TRI(a, b, c)	(glVertex2fv(v[a]), glVertex2fv(v[b]), glVertex2fv(v[c]))
+
+static void draw_checkbox(int id, const char *label, int x, int y, int state, int over)
+{
+	static const int sz = CHECKBOX_SIZE;
+	unsigned int attr = 0;
+	float tcol[4], bcol[4];
+
+	if(over) {
+		attr |= IMTK_FOCUS_BIT;
+	}
+	if(imtk_is_active(id)) {
+		attr |= IMTK_PRESS_BIT;
+	}
+	memcpy(tcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof tcol);
+	memcpy(bcol, imtk_get_color(IMTK_TOP_COLOR | attr), sizeof bcol);
+
+	imtk_draw_rect(x, y, sz, sz, tcol, bcol);
+	imtk_draw_frame(x, y, sz, sz, FRAME_INSET);
+
+	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
+	if(state) {
+		glMatrixMode(GL_MODELVIEW);
+		glPushMatrix();
+		glTranslatef(x, y + sz, 0);
+		glScalef(sz * 1.2, -sz * 1.3, 1);
+
+		glBegin(GL_TRIANGLES);
+		glColor4fv(imtk_get_color(IMTK_CHECK_COLOR));
+		TRI(0, 1, 2);
+		TRI(1, 3, 2);
+		TRI(3, 4, 2);
+		TRI(3, 5, 4);
+		TRI(4, 5, 6);
+		TRI(4, 6, 7);
+		TRI(4, 7, 8);
+		TRI(8, 7, 9);
+		TRI(8, 9, 10);
+		TRI(10, 9, 11);
+		glEnd();
+
+		glPopMatrix();
+	}
+
+	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
+	imtk_draw_string(x + sz + 5, y + sz - 2, label);
+}
+