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nuclear@6
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1 #include <assert.h>
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nuclear@6
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2 #include "imtk.h"
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nuclear@6
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3 #include "state.h"
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nuclear@6
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4 #include "draw.h"
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5
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nuclear@6
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6 static void calc_button_size(const char *label, int *wret, int *hret);
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nuclear@6
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7 static void draw_button(int id, const char *label, int x, int y);
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8
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nuclear@6
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9 int imtk_button(int id, const char *label, int x, int y)
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10 {
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nuclear@6
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11 int w, h, res = 0;
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12 int over = 0;
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13
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14 assert(id >= 0);
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15
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16 calc_button_size(label, &w, &h);
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17
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18 if(imtk_hit_test(x, y, w, h)) {
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19 imtk_set_hot(id);
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20 over = 1;
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21 }
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nuclear@6
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22
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nuclear@6
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23 if(imtk_button_state(IMTK_LEFT_BUTTON)) {
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24 if(over) {
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25 imtk_set_active(id);
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26 }
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nuclear@6
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27 } else { /* mouse button up */
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28 if(imtk_is_active(id)) {
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29 imtk_set_active(-1);
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30 if(imtk_is_hot(id) && over) {
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31 res = 1;
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32 }
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33 }
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34 }
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35
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nuclear@6
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36 draw_button(id, label, x, y);
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nuclear@6
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37 return res;
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nuclear@6
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38 }
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39
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nuclear@6
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40 static void draw_button(int id, const char *label, int x, int y)
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41 {
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nuclear@6
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42 int width, height;
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43
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44 calc_button_size(label, &width, &height);
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45
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46 glBegin(GL_QUADS);
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nuclear@6
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47 if(imtk_hit_test(x, y, width, height)) {
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nuclear@6
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48 glColor4fv(imtk_get_color(IMTK_FOCUS_COLOR));
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nuclear@6
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49 } else {
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nuclear@6
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50 glColor4fv(imtk_get_color(IMTK_BASE_COLOR));
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51 }
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52 glVertex2f(x, y);
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53 glVertex2f(x + width, y);
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54 glVertex2f(x + width, y + height);
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55 glVertex2f(x, y + height);
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56 glEnd();
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57
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58 imtk_draw_frame(x, y, width, height, imtk_is_active(id) ? FRAME_INSET : FRAME_OUTSET);
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59
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60 glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
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61 imtk_draw_string(x + 20, y + 15, label);
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62 }
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63
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nuclear@6
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64 static void calc_button_size(const char *label, int *wret, int *hret)
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nuclear@6
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65 {
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66 int strsz = imtk_string_size(label);
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67 if(wret) *wret = strsz + 40;
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68 if(hret) *hret = 20;
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69 }
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