imtk

annotate src/button.c @ 9:1b27a69603ac

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fixed missing -lGLU from makefile
author John Tsiombikas <nuclear@siggraph.org>
date Sat, 16 Apr 2011 22:59:23 +0300
parents 38609a9f7586
children df2bc9406561
rev   line source
nuclear@6 1 #include <assert.h>
nuclear@6 2 #include "imtk.h"
nuclear@6 3 #include "state.h"
nuclear@6 4 #include "draw.h"
nuclear@6 5
nuclear@6 6 static void calc_button_size(const char *label, int *wret, int *hret);
nuclear@6 7 static void draw_button(int id, const char *label, int x, int y);
nuclear@6 8
nuclear@6 9 int imtk_button(int id, const char *label, int x, int y)
nuclear@6 10 {
nuclear@6 11 int w, h, res = 0;
nuclear@6 12 int over = 0;
nuclear@6 13
nuclear@6 14 assert(id >= 0);
nuclear@6 15
nuclear@6 16 calc_button_size(label, &w, &h);
nuclear@6 17
nuclear@6 18 if(imtk_hit_test(x, y, w, h)) {
nuclear@6 19 imtk_set_hot(id);
nuclear@6 20 over = 1;
nuclear@6 21 }
nuclear@6 22
nuclear@6 23 if(imtk_button_state(IMTK_LEFT_BUTTON)) {
nuclear@6 24 if(over) {
nuclear@6 25 imtk_set_active(id);
nuclear@6 26 }
nuclear@6 27 } else { /* mouse button up */
nuclear@6 28 if(imtk_is_active(id)) {
nuclear@6 29 imtk_set_active(-1);
nuclear@6 30 if(imtk_is_hot(id) && over) {
nuclear@6 31 res = 1;
nuclear@6 32 }
nuclear@6 33 }
nuclear@6 34 }
nuclear@6 35
nuclear@6 36 draw_button(id, label, x, y);
nuclear@6 37 return res;
nuclear@6 38 }
nuclear@6 39
nuclear@6 40 static void draw_button(int id, const char *label, int x, int y)
nuclear@6 41 {
nuclear@6 42 int width, height;
nuclear@6 43
nuclear@6 44 calc_button_size(label, &width, &height);
nuclear@6 45
nuclear@6 46 if(imtk_hit_test(x, y, width, height)) {
nuclear@6 47 glColor4fv(imtk_get_color(IMTK_FOCUS_COLOR));
nuclear@6 48 } else {
nuclear@6 49 glColor4fv(imtk_get_color(IMTK_BASE_COLOR));
nuclear@6 50 }
nuclear@6 51
nuclear@8 52 imtk_draw_rect(x, y, width, height, 0);
nuclear@6 53 imtk_draw_frame(x, y, width, height, imtk_is_active(id) ? FRAME_INSET : FRAME_OUTSET);
nuclear@6 54
nuclear@6 55 glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
nuclear@6 56 imtk_draw_string(x + 20, y + 15, label);
nuclear@6 57 }
nuclear@6 58
nuclear@6 59 static void calc_button_size(const char *label, int *wret, int *hret)
nuclear@6 60 {
nuclear@6 61 int strsz = imtk_string_size(label);
nuclear@6 62 if(wret) *wret = strsz + 40;
nuclear@6 63 if(hret) *hret = 20;
nuclear@6 64 }