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, int over);

11

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

13 {

14 int sz = CHECKBOX_SIZE;

15 int over = 0;

16

17 assert(id >= 0);

18

19 if(imtk_hit_test(x, y, sz + imtk_string_size(label) + 5, sz)) {

20 imtk_set_hot(id);

21 over = 1;

22 }

23

24 if(imtk_button_state(IMTK_LEFT_BUTTON)) {

25 if(over) {

26 imtk_set_active(id);

27 }

28 } else { /* mouse button up */

29 if(imtk_is_active(id)) {

30 imtk_set_active(-1);

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

32 state = !state;

33 }

34 }

35 }

36

37 draw_checkbox(id, label, x, y, state, over);

38 return state;

39 }

40

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

42 {

43 static const int sz = CHECKBOX_SIZE;

44

45 if(over) {

46 glColor4fv(imtk_get_color(IMTK_FOCUS_COLOR));

47 } else {

48 glColor4fv(imtk_get_color(IMTK_BASE_COLOR));

49 }

50

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

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

53

54 glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));

55 if(state) {

56 glPushAttrib(GL_LINE_BIT);

57 glLineWidth(2);

58

59 glBegin(GL_LINES);

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

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

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

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

64 glEnd();

65

66 glPopAttrib();

67 }

68

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

70 }

71