nuclear@6: #include "state.h"
nuclear@6: #include "imtk.h"
nuclear@6: 
nuclear@6: struct key_node {
nuclear@6: 	int key;
nuclear@6: 	struct key_node *next;
nuclear@6: };
nuclear@6: 
nuclear@6: 
nuclear@6: struct imtk_state st = {
nuclear@6: 	1, 1,			/* scr_width/scr_height */
nuclear@6: 	0, 0, 0, 0, 0,	/* mousex/mousey, prevx, prevy, mouse_bnmask */
nuclear@6: 	-1, -1, -1, -1	/* active, hot, input, prev_active */
nuclear@6: };
nuclear@6: 
nuclear@6: static struct key_node *key_list, *key_tail;
nuclear@6: 
nuclear@6: 
nuclear@6: 
nuclear@6: void imtk_inp_key(int key, int state)
nuclear@6: {
nuclear@6: 	if(state == IMTK_DOWN) {
nuclear@6: 		struct key_node *node;
nuclear@6: 
nuclear@6: 		if(!(node = malloc(sizeof *node))) {
nuclear@6: 			return;
nuclear@6: 		}
nuclear@6: 		node->key = key;
nuclear@6: 		node->next = 0;
nuclear@6: 
nuclear@6: 		if(key_list) {
nuclear@6: 			key_tail->next = node;
nuclear@6: 			key_tail = node;
nuclear@6: 		} else {
nuclear@6: 			key_list = key_tail = node;
nuclear@6: 		}
nuclear@6: 	}
nuclear@6: 
nuclear@6: 	imtk_post_redisplay();
nuclear@6: }
nuclear@6: 
nuclear@6: void imtk_inp_mouse(int bn, int state)
nuclear@6: {
nuclear@6: 	if(state == IMTK_DOWN) {
nuclear@6: 		st.mouse_bnmask |= 1 << bn;
nuclear@6: 	} else {
nuclear@6: 		st.mouse_bnmask &= ~(1 << bn);
nuclear@6: 	}
nuclear@6: 	imtk_post_redisplay();
nuclear@6: }
nuclear@6: 
nuclear@6: void imtk_inp_motion(int x, int y)
nuclear@6: {
nuclear@6: 	st.mousex = x;
nuclear@6: 	st.mousey = y;
nuclear@6: 
nuclear@6: 	imtk_post_redisplay();
nuclear@6: }
nuclear@6: 
nuclear@7: void imtk_set_viewport(int x, int y)
nuclear@6: {
nuclear@6: 	st.scr_width = x;
nuclear@6: 	st.scr_height = y;
nuclear@6: }
nuclear@6: 
nuclear@7: void imtk_get_viewport(int *width, int *height)
nuclear@7: {
nuclear@7: 	if(width) *width = st.scr_width;
nuclear@7: 	if(height) *height = st.scr_height;
nuclear@7: }
nuclear@7: 
nuclear@6: 
nuclear@6: void imtk_set_active(int id)
nuclear@6: {
nuclear@6: 	if(id == -1 || st.hot == id) {
nuclear@6: 		st.prev_active = st.active;
nuclear@6: 		st.active = id;
nuclear@6: 	}
nuclear@6: }
nuclear@6: 
nuclear@6: int imtk_is_active(int id)
nuclear@6: {
nuclear@6: 	return st.active == id;
nuclear@6: }
nuclear@6: 
nuclear@6: int imtk_set_hot(int id)
nuclear@6: {
nuclear@6: 	if(st.active == -1) {
nuclear@6: 		st.hot = id;
nuclear@6: 		return 1;
nuclear@6: 	}
nuclear@6: 	return 0;
nuclear@6: }
nuclear@6: 
nuclear@6: int imtk_is_hot(int id)
nuclear@6: {
nuclear@6: 	return st.hot == id;
nuclear@6: }
nuclear@6: 
nuclear@6: void imtk_set_focus(int id)
nuclear@6: {
nuclear@6: 	st.input = id;
nuclear@6: }
nuclear@6: 
nuclear@6: int imtk_has_focus(int id)
nuclear@6: {
nuclear@6: 	return st.input == id;
nuclear@6: }
nuclear@6: 
nuclear@6: int imtk_hit_test(int x, int y, int w, int h)
nuclear@6: {
nuclear@6: 	return st.mousex >= x && st.mousex < (x + w) &&
nuclear@6: 		st.mousey >= y && st.mousey < (y + h);
nuclear@6: }
nuclear@6: 
nuclear@6: void imtk_get_mouse(int *xptr, int *yptr)
nuclear@6: {
nuclear@6: 	if(xptr) *xptr = st.mousex;
nuclear@6: 	if(yptr) *yptr = st.mousey;
nuclear@6: }
nuclear@6: 
nuclear@6: void imtk_set_prev_mouse(int x, int y)
nuclear@6: {
nuclear@6: 	st.prevx = x;
nuclear@6: 	st.prevy = y;
nuclear@6: }
nuclear@6: 
nuclear@6: void imtk_get_prev_mouse(int *xptr, int *yptr)
nuclear@6: {
nuclear@6: 	if(xptr) *xptr = st.prevx;
nuclear@6: 	if(yptr) *yptr = st.prevy;
nuclear@6: }
nuclear@6: 
nuclear@6: int imtk_button_state(int bn)
nuclear@6: {
nuclear@6: 	return st.mouse_bnmask & (1 << bn);
nuclear@6: }
nuclear@6: 
nuclear@6: 
nuclear@6: int imtk_get_key(void)
nuclear@6: {
nuclear@6: 	int key = -1;
nuclear@6: 	struct key_node *node = key_list;
nuclear@6: 
nuclear@6: 	if(node) {
nuclear@6: 		key = node->key;
nuclear@6: 		key_list = node->next;
nuclear@6: 		if(!key_list) {
nuclear@6: 			key_tail = 0;
nuclear@6: 		}
nuclear@6: 		free(node);
nuclear@6: 	}
nuclear@6: 	return key;
nuclear@6: }