1 #include <string.h>

2 #include <assert.h>

3 #include "draw.h"

4 #include "imtk.h"

5

6 /* default colors, can be changed with imtk_set_color */

7 static float colors[][4] = {

8 {0.0, 0.0, 0.0, 1.0}, /* text color */

9 {0.7, 0.7, 0.7, 1.0}, /* base color */

10 {0.85, 0.85, 0.85, 1.0}, /* focus color */

11 {1.0, 1.0, 1.0, 1.0}, /* lit bevel */

12 {0.3, 0.3, 0.3, 1.0} /* shadowed bevel */

13 };

14

15 void imtk_set_color(int col, float r, float g, float b, float a)

16 {

17 assert(col >= 0 && col < sizeof colors / sizeof *colors);

18

19 colors[col][0] = r;

20 colors[col][1] = g;

21 colors[col][2] = b;

22 colors[col][3] = a;

23 }

24

25 float *imtk_get_color(int col)

26 {

27 return colors[col];

28 }

29

30 void imtk_draw_frame(int x, int y, int w, int h, int style)

31 {

32 float tcol[4], bcol[4];

33

34 switch(style) {

35 case FRAME_INSET:

36 memcpy(tcol, colors[IMTK_BEVEL_SHAD_COLOR], sizeof tcol);

37 memcpy(bcol, colors[IMTK_BEVEL_LIT_COLOR], sizeof bcol);

38 break;

39

40 case FRAME_OUTSET:

41 default:

42 memcpy(tcol, colors[IMTK_BEVEL_LIT_COLOR], sizeof tcol);

43 memcpy(bcol, colors[IMTK_BEVEL_SHAD_COLOR], sizeof bcol);

44 }

45

46 glBegin(GL_LINES);

47 glColor4fv(tcol);

48 glVertex2f(x, y + h);

49 glVertex2f(x, y);

50 glVertex2f(x, y);

51 glVertex2f(x + w, y);

52 glColor4fv(bcol);

53 glVertex2f(x + w, y);

54 glVertex2f(x + w, y + h);

55 glVertex2f(x + w, y + h);

56 glVertex2f(x, y + h);

57 glEnd();

58

59 }

60

61 void imtk_draw_string(int x, int y, const char *str)

62 {

63 glRasterPos2i(x, y);

64 while(*str) {

65 glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, *str++);

66 }

67 }

68

69 int imtk_string_size(const char *str)

70 {

71 return glutBitmapLength(GLUT_BITMAP_HELVETICA_12, (const unsigned char*)str);

72 }