X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=blobdiff_plain;f=src%2Fimtk%2Fbutton.c;fp=src%2Fimtk%2Fbutton.c;h=f501a500f3f590021f166b54f34a6ba68b985f6c;hp=0000000000000000000000000000000000000000;hb=2f14a35e7d557da12f24056267b911f24774aa18;hpb=5eefe7b94c8d6c6caa2c10e3835ab0831a3c42a1

diff --git a/src/imtk/button.c b/src/imtk/button.c
new file mode 100644
index 0000000..f501a50
--- /dev/null
+++ b/src/imtk/button.c
@@ -0,0 +1,72 @@
+#include <string.h>
+#include <assert.h>
+#include "imtk.h"
+#include "state.h"
+#include "draw.h"
+
+static void calc_button_size(const char *label, int *wret, int *hret);
+static void draw_button(int id, const char *label, int x, int y, int over);
+
+int imtk_button(int id, const char *label, int x, int y)
+{
+	int w, h, res = 0;
+	int over = 0;
+
+	assert(id >= 0);
+
+	if(x == IMTK_AUTO || y == IMTK_AUTO) {
+		imtk_layout_get_pos(&x, &y);
+	}
+
+	calc_button_size(label, &w, &h);
+
+	if(imtk_hit_test(x, y, w, h)) {
+		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) {
+				res = 1;
+			}
+		}
+	}
+
+	draw_button(id, label, x, y, over);
+	imtk_layout_advance(w, h);
+	return res;
+}
+
+static void draw_button(int id, const char *label, int x, int y, int over)
+{
+	float tcol[4], bcol[4];
+	int width, height, active = imtk_is_active(id);
+	unsigned int attr = 0;
+
+	if(over) attr |= IMTK_FOCUS_BIT;
+	if(active) attr |= IMTK_PRESS_BIT;
+
+	calc_button_size(label, &width, &height);
+
+	memcpy(tcol, imtk_get_color(IMTK_TOP_COLOR | attr), sizeof tcol);
+	memcpy(bcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof bcol);
+
+	imtk_draw_rect(x, y, width, height, tcol, bcol);
+	imtk_draw_frame(x, y, width, height, active ? FRAME_INSET : FRAME_OUTSET);
+
+	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
+	imtk_draw_string(x + 20, y + 15, label);
+}
+
+static void calc_button_size(const char *label, int *wret, int *hret)
+{
+	int strsz = imtk_string_size(label);
+	if(wret) *wret = strsz + 40;
+	if(hret) *hret = 20;
+}