X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=blobdiff_plain;f=src%2Fimtk%2Fstate.c;fp=src%2Fimtk%2Fstate.c;h=f177f4db4c8bea84eecde9e19883eb1c962e11db;hp=0000000000000000000000000000000000000000;hb=2f14a35e7d557da12f24056267b911f24774aa18;hpb=5eefe7b94c8d6c6caa2c10e3835ab0831a3c42a1

diff --git a/src/imtk/state.c b/src/imtk/state.c
new file mode 100644
index 0000000..f177f4d
--- /dev/null
+++ b/src/imtk/state.c
@@ -0,0 +1,154 @@
+#include "state.h"
+#include "imtk.h"
+
+struct key_node {
+	int key;
+	struct key_node *next;
+};
+
+
+struct imtk_state st = {
+	1, 1,			/* scr_width/scr_height */
+	0, 0, 0, 0, 0,	/* mousex/mousey, prevx, prevy, mouse_bnmask */
+	-1, -1, -1, -1	/* active, hot, input, prev_active */
+};
+
+static struct key_node *key_list, *key_tail;
+
+
+
+void imtk_inp_key(int key, int state)
+{
+	if(state == IMTK_DOWN) {
+		struct key_node *node;
+
+		if(!(node = malloc(sizeof *node))) {
+			return;
+		}
+		node->key = key;
+		node->next = 0;
+
+		if(key_list) {
+			key_tail->next = node;
+			key_tail = node;
+		} else {
+			key_list = key_tail = node;
+		}
+	}
+
+	imtk_post_redisplay();
+}
+
+void imtk_inp_mouse(int bn, int state)
+{
+	if(state == IMTK_DOWN) {
+		st.mouse_bnmask |= 1 << bn;
+	} else {
+		st.mouse_bnmask &= ~(1 << bn);
+	}
+	imtk_post_redisplay();
+}
+
+void imtk_inp_motion(int x, int y)
+{
+	st.mousex = x;
+	st.mousey = y;
+
+	imtk_post_redisplay();
+}
+
+void imtk_set_viewport(int x, int y)
+{
+	st.scr_width = x;
+	st.scr_height = y;
+}
+
+void imtk_get_viewport(int *width, int *height)
+{
+	if(width) *width = st.scr_width;
+	if(height) *height = st.scr_height;
+}
+
+
+void imtk_set_active(int id)
+{
+	if(id == -1 || st.hot == id) {
+		st.prev_active = st.active;
+		st.active = id;
+	}
+}
+
+int imtk_is_active(int id)
+{
+	return st.active == id;
+}
+
+int imtk_set_hot(int id)
+{
+	if(st.active == -1) {
+		st.hot = id;
+		return 1;
+	}
+	return 0;
+}
+
+int imtk_is_hot(int id)
+{
+	return st.hot == id;
+}
+
+void imtk_set_focus(int id)
+{
+	st.input = id;
+}
+
+int imtk_has_focus(int id)
+{
+	return st.input == id;
+}
+
+int imtk_hit_test(int x, int y, int w, int h)
+{
+	return st.mousex >= x && st.mousex < (x + w) &&
+		st.mousey >= y && st.mousey < (y + h);
+}
+
+void imtk_get_mouse(int *xptr, int *yptr)
+{
+	if(xptr) *xptr = st.mousex;
+	if(yptr) *yptr = st.mousey;
+}
+
+void imtk_set_prev_mouse(int x, int y)
+{
+	st.prevx = x;
+	st.prevy = y;
+}
+
+void imtk_get_prev_mouse(int *xptr, int *yptr)
+{
+	if(xptr) *xptr = st.prevx;
+	if(yptr) *yptr = st.prevy;
+}
+
+int imtk_button_state(int bn)
+{
+	return st.mouse_bnmask & (1 << bn);
+}
+
+
+int imtk_get_key(void)
+{
+	int key = -1;
+	struct key_node *node = key_list;
+
+	if(node) {
+		key = node->key;
+		key_list = node->next;
+		if(!key_list) {
+			key_tail = 0;
+		}
+		free(node);
+	}
+	return key;
+}