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annotate src/gui.cc @ 2:87b6a11c920b

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added gui stuff
author John Tsiombikas <nuclear@siggraph.org>
date Tue, 26 Oct 2010 08:49:09 +0300
parents
children bf1d56975cc9
rev   line source
nuclear@2 1 #include <stdio.h>
nuclear@2 2
nuclear@2 3 #ifndef __APPLE__
nuclear@2 4 #include <GL/glut.h>
nuclear@2 5 #else
nuclear@2 6 #include <GLUT/glut.h>
nuclear@2 7 #endif
nuclear@2 8
nuclear@2 9 #include <vmath.h>
nuclear@2 10 #include <ubertk.h>
nuclear@2 11 #include "gui.h"
nuclear@2 12 #include "utktext.h"
nuclear@2 13 #include "sdr.h"
nuclear@2 14
nuclear@2 15 #define TEXT_PT_SIZE 18
nuclear@2 16
nuclear@2 17 void huecb(utk::Event *ev, void *cls);
nuclear@2 18 static void cbfunc(utk::Event *ev, void *cls);
nuclear@2 19
nuclear@2 20 void utk_color(int r, int g, int b, int a);
nuclear@2 21 void utk_clip(int x1, int y1, int x2, int y2);
nuclear@2 22 void utk_image(int x, int y, const void *pix, int xsz, int ysz);
nuclear@2 23
nuclear@2 24 void utk_rect(int x1, int y1, int x2, int y2);
nuclear@2 25 void utk_line(int x1, int y1, int x2, int y2, int width);
nuclear@2 26
nuclear@2 27 void utk_text(int x, int y, const char *txt, int sz);
nuclear@2 28 int utk_text_spacing();
nuclear@2 29 int utk_text_width(const char *txt, int sz);
nuclear@2 30
nuclear@2 31
nuclear@2 32 int xsz, ysz;
nuclear@2 33 static utk::Container *utkroot;
nuclear@2 34 static float max_descent;
nuclear@2 35 utk::Window *win_seed, *win_material;
nuclear@2 36
nuclear@2 37
nuclear@2 38 extern unsigned int sdr;
nuclear@2 39 extern Vector4 seed;
nuclear@2 40 extern int iter;
nuclear@2 41 extern float err_thres;
nuclear@2 42 extern float reflectivity;
nuclear@2 43 extern Vector3 color;
nuclear@2 44
nuclear@2 45 int gui_init(int width, int height)
nuclear@2 46 {
nuclear@2 47 xsz = width;
nuclear@2 48 ysz = height;
nuclear@2 49
nuclear@2 50 if(!CreateFont("georgia.ttf", TEXT_PT_SIZE)) {
nuclear@2 51 fprintf(stderr, "failed to load font\n");
nuclear@2 52 return -1;
nuclear@2 53 }
nuclear@2 54 max_descent = GetMaxDescent();
nuclear@2 55
nuclear@2 56 utk::gfx::color = utk_color;
nuclear@2 57 utk::gfx::clip = utk_clip;
nuclear@2 58 utk::gfx::image = utk_image;
nuclear@2 59 utk::gfx::rect = utk_rect;
nuclear@2 60 utk::gfx::line = utk_line;
nuclear@2 61 utk::gfx::text = utk_text;
nuclear@2 62 utk::gfx::text_spacing = utk_text_spacing;
nuclear@2 63 utk::gfx::text_width = utk_text_width;
nuclear@2 64
nuclear@2 65 utkroot = utk::init(xsz, ysz);
nuclear@2 66
nuclear@2 67 win_seed = utk::create_window(utkroot, 5, 25, 220, 175, "julia parameters");
nuclear@2 68 win_seed->set_alpha(128);
nuclear@2 69 win_seed->show();
nuclear@2 70
nuclear@2 71 utk::VBox *vbox = utk::create_vbox(win_seed);
nuclear@2 72 utk::HBox *hbox;
nuclear@2 73
nuclear@2 74 hbox = utk::create_hbox(vbox);
nuclear@2 75 utk::create_label(hbox, "seed x");
nuclear@2 76 utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)0)->set_value(seed.x);
nuclear@2 77 hbox = utk::create_hbox(vbox);
nuclear@2 78 utk::create_label(hbox, "seed y");
nuclear@2 79 utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)1)->set_value(seed.y);
nuclear@2 80 hbox = utk::create_hbox(vbox);
nuclear@2 81 utk::create_label(hbox, "seed z");
nuclear@2 82 utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)2)->set_value(seed.z);
nuclear@2 83 hbox = utk::create_hbox(vbox);
nuclear@2 84 utk::create_label(hbox, "seed w");
nuclear@2 85 utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)3)->set_value(seed.w);
nuclear@2 86
nuclear@2 87 hbox = utk::create_hbox(vbox);
nuclear@2 88 utk::create_label(hbox, "iterations");
nuclear@2 89 utk::Slider *iter_slider = utk::create_slider(hbox, 0, 32, cbfunc, (void*)5);
nuclear@2 90 iter_slider->set_value(iter);
nuclear@2 91 iter_slider->set_vis_decimal(0);
nuclear@2 92
nuclear@2 93 hbox = utk::create_hbox(vbox);
nuclear@2 94 utk::create_label(hbox, "max error");
nuclear@2 95 utk::Slider *err_slider = utk::create_slider(hbox, 0, 0.075, cbfunc, (void*)6);
nuclear@2 96 err_slider->set_value(err_thres);
nuclear@2 97 err_slider->set_vis_decimal(4);
nuclear@2 98
nuclear@2 99 win_material = utk::create_window(utkroot, 250, 25, 220, 210, "material");
nuclear@2 100 win_material->set_alpha(128);
nuclear@2 101 win_material->show();
nuclear@2 102 ((utk::WinFrame*)win_material->get_parent())->set_shade(true);
nuclear@2 103
nuclear@2 104 vbox = utk::create_vbox(win_material);
nuclear@2 105
nuclear@2 106 utk::ColorBox *colbox = new utk::ColorBox;
nuclear@2 107 vbox->add_child(colbox);
nuclear@2 108 utk::HueBox *huebox = new utk::HueBox;
nuclear@2 109 vbox->add_child(huebox);
nuclear@2 110 huebox->set_callback(utk::EVENT_MODIFY, huecb, colbox);
nuclear@2 111
nuclear@2 112 float hue, sat, val;
nuclear@2 113 utk::rgb_to_hsv(color.x, color.y, color.z, &hue, &sat, &val);
nuclear@2 114 colbox->set_color_hsv(hue, sat, val);
nuclear@2 115 huebox->set_h(hue);
nuclear@2 116
nuclear@2 117 hbox = utk::create_hbox(vbox);
nuclear@2 118 utk::create_label(hbox, "reflectivity");
nuclear@2 119 utk::create_slider(hbox, 0, 1.0, cbfunc, (void*)4)->set_value(reflectivity);
nuclear@2 120
nuclear@2 121 return 0;
nuclear@2 122 }
nuclear@2 123
nuclear@2 124 void gui_draw()
nuclear@2 125 {
nuclear@2 126 glMatrixMode(GL_MODELVIEW);
nuclear@2 127 glPushMatrix();
nuclear@2 128 glLoadIdentity();
nuclear@2 129 glMatrixMode(GL_PROJECTION);
nuclear@2 130 glPushMatrix();
nuclear@2 131 glLoadIdentity();
nuclear@2 132
nuclear@2 133 glPushAttrib(GL_ENABLE_BIT);
nuclear@2 134 glDisable(GL_LIGHTING);
nuclear@2 135 glDisable(GL_DEPTH_TEST);
nuclear@2 136 glDisable(GL_CULL_FACE);
nuclear@2 137 glEnable(GL_BLEND);
nuclear@2 138
nuclear@2 139 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@2 140
nuclear@2 141 utk::draw();
nuclear@2 142
nuclear@2 143 glPopAttrib();
nuclear@2 144
nuclear@2 145 glMatrixMode(GL_PROJECTION);
nuclear@2 146 glPopMatrix();
nuclear@2 147 glMatrixMode(GL_MODELVIEW);
nuclear@2 148 glPopMatrix();
nuclear@2 149 }
nuclear@2 150
nuclear@2 151 void gui_set_visible(bool vis)
nuclear@2 152 {
nuclear@2 153 if(vis) {
nuclear@2 154 win_seed->show();
nuclear@2 155 win_material->show();
nuclear@2 156 } else {
nuclear@2 157 win_seed->hide();
nuclear@2 158 win_material->hide();
nuclear@2 159 }
nuclear@2 160 }
nuclear@2 161
nuclear@2 162 void huecb(utk::Event *ev, void *cls)
nuclear@2 163 {
nuclear@2 164 utk::HueBox *huebox = (utk::HueBox*)ev->widget;
nuclear@2 165 utk::ColorBox *colbox = (utk::ColorBox*)cls;
nuclear@2 166
nuclear@2 167 colbox->set_h(huebox->get_h());
nuclear@2 168 }
nuclear@2 169
nuclear@2 170 void cbfunc(utk::Event *ev, void *cls)
nuclear@2 171 {
nuclear@2 172 int id = (int)(intptr_t)cls;
nuclear@2 173
nuclear@2 174 switch(id) {
nuclear@2 175 case 0:
nuclear@2 176 case 1:
nuclear@2 177 case 2:
nuclear@2 178 case 3:
nuclear@2 179 {
nuclear@2 180 utk::Slider *slider = (utk::Slider*)ev->widget;
nuclear@2 181
nuclear@2 182 seed[id] = slider->get_value();
nuclear@2 183 set_uniform_float4(sdr, "seed", seed.x, seed.y, seed.z, seed.w);
nuclear@2 184 glutPostRedisplay();
nuclear@2 185 }
nuclear@2 186 break;
nuclear@2 187
nuclear@2 188 case 4:
nuclear@2 189 {
nuclear@2 190 utk::Slider *slider = (utk::Slider*)ev->widget;
nuclear@2 191
nuclear@2 192 reflectivity = slider->get_value();
nuclear@2 193 set_uniform_float(sdr, "reflectivity", reflectivity);
nuclear@2 194 glutPostRedisplay();
nuclear@2 195 }
nuclear@2 196 break;
nuclear@2 197
nuclear@2 198 case 5:
nuclear@2 199 {
nuclear@2 200 utk::Slider *slider = (utk::Slider*)ev->widget;
nuclear@2 201
nuclear@2 202 iter = (int)slider->get_value();
nuclear@2 203 set_uniform_int(sdr, "iter", iter);
nuclear@2 204 glutPostRedisplay();
nuclear@2 205 }
nuclear@2 206 break;
nuclear@2 207
nuclear@2 208 case 6:
nuclear@2 209 {
nuclear@2 210 utk::Slider *slider = (utk::Slider*)ev->widget;
nuclear@2 211
nuclear@2 212 err_thres = slider->get_value();
nuclear@2 213 set_uniform_float(sdr, "err_thres", err_thres);
nuclear@2 214 glutPostRedisplay();
nuclear@2 215 }
nuclear@2 216 break;
nuclear@2 217
nuclear@2 218 default:
nuclear@2 219 fprintf(stderr, "unhandled callback (id: %d)\n", id);
nuclear@2 220 break;
nuclear@2 221 }
nuclear@2 222 }
nuclear@2 223
nuclear@2 224
nuclear@2 225 #define CONVX(x) (2.0 * (float)(x) / (float)xsz - 1.0)
nuclear@2 226 #define CONVY(y) (1.0 - 2.0 * (float)(y) / (float)ysz)
nuclear@2 227
nuclear@2 228 void utk_color(int r, int g, int b, int a)
nuclear@2 229 {
nuclear@2 230 glColor4ub(r, g, b, a);
nuclear@2 231 SetTextColor(Color(r / 255.0, g / 255.0, b / 255.0, a / 255.0));
nuclear@2 232 }
nuclear@2 233
nuclear@2 234 void utk_clip(int x1, int y1, int x2, int y2)
nuclear@2 235 {
nuclear@2 236 if(x1 == x2 && y1 == y2 && x1 == y1 && x1 == 0) {
nuclear@2 237 glDisable(GL_SCISSOR_TEST);
nuclear@2 238 } else {
nuclear@2 239 glEnable(GL_SCISSOR_TEST);
nuclear@2 240 }
nuclear@2 241 glScissor(x1, ysz - y2, x2 - x1, y2 - y1);
nuclear@2 242 }
nuclear@2 243
nuclear@2 244 void utk_image(int x, int y, const void *pix, int w, int h)
nuclear@2 245 {
nuclear@2 246 glPixelZoom(1, -1);
nuclear@2 247 glRasterPos2f(CONVX(x), CONVY(y));
nuclear@2 248 glDrawPixels(w, h, GL_BGRA, GL_UNSIGNED_BYTE, pix);
nuclear@2 249 }
nuclear@2 250
nuclear@2 251 void utk_rect(int x1, int y1, int x2, int y2)
nuclear@2 252 {
nuclear@2 253 glRectf(CONVX(x1), CONVY(y1), CONVX(x2), CONVY(y2));
nuclear@2 254 }
nuclear@2 255
nuclear@2 256 void utk_line(int x1, int y1, int x2, int y2, int width)
nuclear@2 257 {
nuclear@2 258 glPushAttrib(GL_LINE_BIT);
nuclear@2 259
nuclear@2 260 glLineWidth((float)width);
nuclear@2 261 glBegin(GL_LINES);
nuclear@2 262 glVertex2f(CONVX(x1), CONVY(y1));
nuclear@2 263 glVertex2f(CONVX(x2), CONVY(y2));
nuclear@2 264 glEnd();
nuclear@2 265
nuclear@2 266 glPopAttrib();
nuclear@2 267 }
nuclear@2 268
nuclear@2 269 void utk_text(int x, int y, const char *txt, int sz)
nuclear@2 270 {
nuclear@2 271 float fx = (float)x / (float)xsz;
nuclear@2 272 float fy = (float)y / (float)ysz;
nuclear@2 273
nuclear@2 274 SetTextPos(Vector2(fx, fy - max_descent));
nuclear@2 275 //SetTextPos(Vector2(0.25, 0.25));
nuclear@2 276 SetTextSize((float)sz / (float)TEXT_PT_SIZE);
nuclear@2 277 PrintString(txt);
nuclear@2 278 }
nuclear@2 279
nuclear@2 280 int utk_text_spacing()
nuclear@2 281 {
nuclear@2 282 return (int)(GetLineAdvance() * (float)ysz);
nuclear@2 283 }
nuclear@2 284
nuclear@2 285 int utk_text_width(const char *txt, int sz)
nuclear@2 286 {
nuclear@2 287 float prev_sz = GetTextSize();
nuclear@2 288 SetTextSize((float)sz / (float)TEXT_PT_SIZE);
nuclear@2 289
nuclear@2 290 int width = (int)(GetTextWidth(txt) * (float)xsz);
nuclear@2 291
nuclear@2 292 SetTextSize(prev_sz);
nuclear@2 293 return width;
nuclear@2 294 }
nuclear@2 295