imtk

annotate src/imtk.c @ 5:09b6e8a5dc14

find changesets by author, revision, files, or words in the commit message
reorganizing the code
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 14 Apr 2011 14:22:20 +0300
parents 00a4ea4ee6dc
children 6d35e6c7b2ca
rev   line source
nuclear@3 1 #include <stdio.h>
nuclear@2 2 #include <stdlib.h>
nuclear@1 3 #include <string.h>
nuclear@2 4 #include <ctype.h>
nuclear@4 5 #include <stdarg.h>
nuclear@0 6 #include <assert.h>
nuclear@0 7 #ifndef __APPLE__
nuclear@0 8 #include <GL/glut.h>
nuclear@0 9 #else
nuclear@0 10 #include <GLUT/glut.h>
nuclear@0 11 #endif
nuclear@0 12 #include "imtk.h"
nuclear@0 13
nuclear@1 14
nuclear@5 15 static void draw_progress(int id, float pos, int x, int y);
nuclear@1 16
nuclear@0 17
nuclear@0 18 void imtk_begin(void)
nuclear@0 19 {
nuclear@0 20 glMatrixMode(GL_PROJECTION);
nuclear@0 21 glPushMatrix();
nuclear@0 22 glLoadIdentity();
nuclear@0 23 glTranslatef(-1, 1, 0);
nuclear@0 24 glScalef(2.0 / scr_width, -2.0 / scr_height, 1.0);
nuclear@2 25
nuclear@2 26 glMatrixMode(GL_MODELVIEW);
nuclear@2 27 glPushMatrix();
nuclear@2 28 glLoadIdentity();
nuclear@2 29
nuclear@2 30 glPushAttrib(GL_ENABLE_BIT);
nuclear@2 31 glDisable(GL_DEPTH_TEST);
nuclear@2 32 glDisable(GL_CULL_FACE);
nuclear@2 33 glDisable(GL_LIGHTING);
nuclear@0 34 }
nuclear@0 35
nuclear@0 36 void imtk_end(void)
nuclear@0 37 {
nuclear@2 38 glPopAttrib();
nuclear@2 39
nuclear@0 40 glMatrixMode(GL_PROJECTION);
nuclear@0 41 glPopMatrix();
nuclear@2 42 glMatrixMode(GL_MODELVIEW);
nuclear@2 43 glPopMatrix();
nuclear@0 44 }
nuclear@0 45
nuclear@5 46
nuclear@5 47 void imtk_post_redisplay(void)
nuclear@0 48 {
nuclear@5 49 glutPostRedisplay();
nuclear@0 50 }
nuclear@0 51
nuclear@1 52
nuclear@3 53
nuclear@3 54 void imtk_progress(int id, float pos, int x, int y)
nuclear@3 55 {
nuclear@3 56 draw_progress(id, pos, x, y);
nuclear@3 57 }
nuclear@3 58
nuclear@4 59 int imtk_listbox(int id, const char *list, int sel, int x, int y)
nuclear@4 60 {
nuclear@4 61 int i;
nuclear@4 62 assert(id >= 0);
nuclear@4 63
nuclear@4 64 if(!list) {
nuclear@4 65 return -1;
nuclear@4 66 }
nuclear@4 67
nuclear@4 68 if(id & 1) {
nuclear@4 69 id++;
nuclear@4 70 }
nuclear@4 71
nuclear@4 72 for(i=0; *list; i++) {
nuclear@4 73 if(imtk_button(id + i * 2 + 1, list, x, y + i * 20)) {
nuclear@4 74 sel = i;
nuclear@4 75 }
nuclear@4 76 list += strlen(list) + 1;
nuclear@4 77 }
nuclear@4 78 return sel;
nuclear@4 79 }
nuclear@4 80
nuclear@4 81 int imtk_combobox(int id, char *textbuf, size_t buf_sz, const char *list, int sel, int x, int y)
nuclear@4 82 {
nuclear@4 83 imtk_textbox(id + 1, textbuf, buf_sz, x, y);
nuclear@4 84 imtk_button(id + 3, "V", x + TEXTBOX_SIZE, y);
nuclear@4 85
nuclear@4 86 if(prev_active == id + 3) {
nuclear@4 87 sel = imtk_listbox(id + 5, list, sel, x, y + 20);
nuclear@4 88 }
nuclear@4 89 return sel;
nuclear@4 90 }
nuclear@4 91
nuclear@4 92 char *imtk_create_list(const char *first, ...)
nuclear@4 93 {
nuclear@4 94 int sz;
nuclear@4 95 char *buf, *item;
nuclear@4 96 va_list ap;
nuclear@4 97
nuclear@4 98 if(!first) {
nuclear@4 99 return 0;
nuclear@4 100 }
nuclear@4 101
nuclear@4 102 sz = strlen(first) + 2;
nuclear@4 103 if(!(buf = malloc(sz))) {
nuclear@4 104 return 0;
nuclear@4 105 }
nuclear@4 106 memcpy(buf, first, sz - 2);
nuclear@4 107 buf[sz - 1] = buf[sz - 2] = 0;
nuclear@4 108
nuclear@4 109 va_start(ap, first);
nuclear@4 110 while((item = va_arg(ap, char*))) {
nuclear@4 111 int len = strlen(item);
nuclear@4 112 char *tmp = realloc(buf, sz + len + 1);
nuclear@4 113 if(!tmp) {
nuclear@4 114 free(buf);
nuclear@4 115 return 0;
nuclear@4 116 }
nuclear@4 117 buf = tmp;
nuclear@4 118
nuclear@4 119 memcpy(buf + sz - 1, item, len);
nuclear@4 120 sz += len + 1;
nuclear@4 121 buf[sz - 1] = buf[sz - 2] = 0;
nuclear@4 122 }
nuclear@4 123 va_end(ap);
nuclear@4 124
nuclear@4 125 return buf;
nuclear@4 126 }
nuclear@4 127
nuclear@4 128 void imtk_free_list(char *list)
nuclear@4 129 {
nuclear@4 130 free(list);
nuclear@4 131 }
nuclear@4 132
nuclear@3 133
nuclear@3 134 static void draw_progress(int id, float pos, int x, int y)
nuclear@3 135 {
nuclear@3 136 int bar_size = SLIDER_SIZE * pos;
nuclear@3 137
nuclear@3 138 if(pos < 0.0) pos = 0.0;
nuclear@3 139 if(pos > 1.0) pos = 1.0;
nuclear@3 140
nuclear@3 141 /* through */
nuclear@3 142 glBegin(GL_QUADS);
nuclear@3 143 glColor3fv(colors[IMTK_BASE_COLOR]);
nuclear@3 144 glVertex2f(x - 1, y - 1);
nuclear@3 145 glVertex2f(x + SLIDER_SIZE + 1, y - 1);
nuclear@3 146 glVertex2f(x + SLIDER_SIZE + 1, y + 17);
nuclear@3 147 glVertex2f(x - 1, y + 17);
nuclear@3 148 glEnd();
nuclear@3 149 draw_frame(x - 1, y - 1, SLIDER_SIZE + 2, 17, FRAME_INSET);
nuclear@3 150
nuclear@3 151 if(pos > 0.0) {
nuclear@3 152 /* bar */
nuclear@3 153 glBegin(GL_QUADS);
nuclear@3 154 glColor3fv(colors[IMTK_BASE_COLOR]);
nuclear@3 155 glVertex2f(x, y);
nuclear@3 156 glVertex2f(x + bar_size, y);
nuclear@3 157 glVertex2f(x + bar_size, y + 15);
nuclear@3 158 glVertex2f(x, y + 15);
nuclear@3 159 glEnd();
nuclear@3 160 draw_frame(x, y, bar_size, 15, FRAME_OUTSET);
nuclear@3 161 }
nuclear@3 162 }