1 #include <assert.h>

2 #include "imtk.h"

3 #include "state.h"

4 #include "draw.h"

5

6

7 #define CHECKBOX_SIZE 14

8

9

10 static void draw_checkbox(int id, const char *label, int x, int y, int state);

11

12

13 int imtk_checkbox(int id, const char *label, int x, int y, int state)

14 {

15 int sz = CHECKBOX_SIZE;

16 int over = 0;

17

18 assert(id >= 0);

19

20 if(imtk_hit_test(x, y, sz, sz)) {

21 imtk_set_hot(id);

22 over = 1;

23 }

24

25 if(imtk_button_state(IMTK_LEFT_BUTTON)) {

26 if(over) {

27 imtk_set_active(id);

28 }

29 } else { /* mouse button up */

30 if(imtk_is_active(id)) {

31 imtk_set_active(-1);

32 if(imtk_is_hot(id) && over) {

33 state = !state;

34 }

35 }

36 }

37

38 draw_checkbox(id, label, x, y, state);

39 return state;

40 }

41

42 static void draw_checkbox(int id, const char *label, int x, int y, int state)

43 {

44 static const int sz = CHECKBOX_SIZE;

45

46 if(imtk_hit_test(x, y, sz, sz)) {

47 glColor4fv(imtk_get_color(IMTK_FOCUS_COLOR));

48 } else {

49 glColor4fv(imtk_get_color(IMTK_BASE_COLOR));

50 }

51

52 imtk_draw_rect(x, y, sz, sz, 0);

53 imtk_draw_frame(x, y, sz, sz, FRAME_INSET);

54

55 glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));

56 if(state) {

57 glPushAttrib(GL_LINE_BIT);

58 glLineWidth(2);

59

60 glBegin(GL_LINES);

61 glVertex2f(x + 2, y + 2);

62 glVertex2f(x + sz - 2, y + sz - 2);

63 glVertex2f(x + sz - 2, y + 2);

64 glVertex2f(x + 2, y + sz - 2);

65 glEnd();

66

67 glPopAttrib();

68 }

69

70 imtk_draw_string(x + sz + 5, y + sz - 2, label);

71 }

72