imtk

annotate src/checkbox.c @ 14:df2bc9406561

find changesets by author, revision, files, or words in the commit message
added gradients
author John Tsiombikas <nuclear@siggraph.org>
date Tue, 19 Apr 2011 03:01:46 +0300
parents 9c7987064bb0
children c7a7ddbe7714
rev   line source
nuclear@14 1 #include <string.h>
nuclear@6 2 #include <assert.h>
nuclear@6 3 #include "imtk.h"
nuclear@6 4 #include "state.h"
nuclear@6 5 #include "draw.h"
nuclear@6 6
nuclear@6 7
nuclear@6 8 #define CHECKBOX_SIZE 14
nuclear@6 9
nuclear@6 10
nuclear@11 11 static void draw_checkbox(int id, const char *label, int x, int y, int state, int over);
nuclear@6 12
nuclear@6 13 int imtk_checkbox(int id, const char *label, int x, int y, int state)
nuclear@6 14 {
nuclear@6 15 int sz = CHECKBOX_SIZE;
nuclear@6 16 int over = 0;
nuclear@6 17
nuclear@6 18 assert(id >= 0);
nuclear@6 19
nuclear@11 20 if(imtk_hit_test(x, y, sz + imtk_string_size(label) + 5, sz)) {
nuclear@6 21 imtk_set_hot(id);
nuclear@6 22 over = 1;
nuclear@6 23 }
nuclear@6 24
nuclear@6 25 if(imtk_button_state(IMTK_LEFT_BUTTON)) {
nuclear@6 26 if(over) {
nuclear@6 27 imtk_set_active(id);
nuclear@6 28 }
nuclear@6 29 } else { /* mouse button up */
nuclear@6 30 if(imtk_is_active(id)) {
nuclear@6 31 imtk_set_active(-1);
nuclear@6 32 if(imtk_is_hot(id) && over) {
nuclear@6 33 state = !state;
nuclear@6 34 }
nuclear@6 35 }
nuclear@6 36 }
nuclear@6 37
nuclear@11 38 draw_checkbox(id, label, x, y, state, over);
nuclear@6 39 return state;
nuclear@6 40 }
nuclear@6 41
nuclear@14 42 static float v[][2] = {
nuclear@14 43 {-0.2, 0.63}, /* 0 */
nuclear@14 44 {0.121, 0.325}, /* 1 */
nuclear@14 45 {0.15, 0.5}, /* 2 */
nuclear@14 46 {0.28, 0.125}, /* 3 */
nuclear@14 47 {0.38, 0.33}, /* 4 */
nuclear@14 48 {0.42, -0.122}, /* 5 */
nuclear@14 49 {0.58, 0.25}, /* 6 */
nuclear@14 50 {0.72, 0.52}, /* 7 */
nuclear@14 51 {0.625, 0.65}, /* 8 */
nuclear@14 52 {0.89, 0.78}, /* 9 */
nuclear@14 53 {0.875, 0.92}, /* 10 */
nuclear@14 54 {1.13, 1.145} /* 11 */
nuclear@14 55 };
nuclear@14 56 #define TRI(a, b, c) (glVertex2fv(v[a]), glVertex2fv(v[b]), glVertex2fv(v[c]))
nuclear@14 57
nuclear@11 58 static void draw_checkbox(int id, const char *label, int x, int y, int state, int over)
nuclear@6 59 {
nuclear@6 60 static const int sz = CHECKBOX_SIZE;
nuclear@14 61 unsigned int attr = 0;
nuclear@14 62 float tcol[4], bcol[4];
nuclear@6 63
nuclear@11 64 if(over) {
nuclear@14 65 attr |= IMTK_FOCUS_BIT;
nuclear@6 66 }
nuclear@14 67 if(imtk_is_active(id)) {
nuclear@14 68 attr |= IMTK_PRESS_BIT;
nuclear@14 69 }
nuclear@14 70 memcpy(tcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof tcol);
nuclear@14 71 memcpy(bcol, imtk_get_color(IMTK_TOP_COLOR | attr), sizeof bcol);
nuclear@6 72
nuclear@14 73 imtk_draw_rect(x, y, sz, sz, tcol, bcol);
nuclear@6 74 imtk_draw_frame(x, y, sz, sz, FRAME_INSET);
nuclear@6 75
nuclear@6 76 glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
nuclear@6 77 if(state) {
nuclear@13 78 glMatrixMode(GL_MODELVIEW);
nuclear@13 79 glPushMatrix();
nuclear@13 80 glTranslatef(x, y + sz, 0);
nuclear@13 81 glScalef(sz * 1.2, -sz * 1.3, 1);
nuclear@6 82
nuclear@13 83 glBegin(GL_TRIANGLES);
nuclear@13 84 glColor4fv(imtk_get_color(IMTK_CHECK_COLOR));
nuclear@13 85 TRI(0, 1, 2);
nuclear@13 86 TRI(1, 3, 2);
nuclear@13 87 TRI(3, 4, 2);
nuclear@13 88 TRI(3, 5, 4);
nuclear@13 89 TRI(4, 5, 6);
nuclear@13 90 TRI(4, 6, 7);
nuclear@13 91 TRI(4, 7, 8);
nuclear@13 92 TRI(8, 7, 9);
nuclear@13 93 TRI(8, 9, 10);
nuclear@13 94 TRI(10, 9, 11);
nuclear@6 95 glEnd();
nuclear@6 96
nuclear@13 97 glPopMatrix();
nuclear@6 98 }
nuclear@6 99
nuclear@13 100 glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
nuclear@6 101 imtk_draw_string(x + sz + 5, y + sz - 2, label);
nuclear@6 102 }
nuclear@6 103