istereo2

annotate src/uitheme.cc @ 30:900651a2f401

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author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 08 Oct 2015 06:54:18 +0300
parents 018f997dc646
children
rev   line source
nuclear@7 1 #include <map>
nuclear@7 2 #include <string>
nuclear@7 3 #include "goatkit/goatkit.h"
nuclear@7 4 #include "opengl.h"
nuclear@9 5 #include "sanegl.h"
nuclear@7 6 #include "drawtext.h"
nuclear@7 7 #include "sdr.h"
nuclear@7 8
nuclear@15 9 #define BEVEL 1.5
nuclear@7 10 #define VIS_THRES 0.005
nuclear@7 11
nuclear@7 12 using namespace goatkit;
nuclear@7 13
nuclear@14 14 struct Color {
nuclear@14 15 float r, g, b, a;
nuclear@14 16
nuclear@14 17 Color() : r(1), g(1), b(1), a(1) {}
nuclear@14 18 Color(float r, float g, float b, float a = 1.0f)
nuclear@14 19 {
nuclear@14 20 this->r = r;
nuclear@14 21 this->g = g;
nuclear@14 22 this->b = b;
nuclear@14 23 this->a = a;
nuclear@14 24 }
nuclear@14 25 };
nuclear@14 26
nuclear@14 27 enum {
nuclear@14 28 TEXT_COLOR,
nuclear@14 29 TOP_COLOR,
nuclear@14 30 BOTTOM_COLOR,
nuclear@15 31 TOP_ON_COLOR,
nuclear@15 32 BOTTOM_ON_COLOR,
nuclear@15 33 TOP_OFF_COLOR,
nuclear@15 34 BOTTOM_OFF_COLOR,
nuclear@14 35 BEVEL_LIT_COLOR,
nuclear@14 36 BEVEL_SHAD_COLOR,
nuclear@14 37 CURSOR_COLOR,
nuclear@14 38 SELECTION_COLOR,
nuclear@14 39 CHECK_COLOR
nuclear@14 40 };
nuclear@14 41
nuclear@14 42 static Color colors[] = {
nuclear@14 43 Color(0.0, 0.0, 0.0, 1.0), /* text color */
nuclear@14 44 Color(0.75, 0.75, 0.75, 1.0), /* top color */
nuclear@14 45 Color(0.56, 0.56, 0.56, 1.0), /* bot color */
nuclear@15 46 Color(0.4, 0.5, 0.8, 1.0), /* top on color */
nuclear@15 47 Color(0.15, 0.2, 0.4, 1.0), /* bottom on color */
nuclear@15 48 Color(0.8, 0.5, 0.4, 1.0), /* top off color */
nuclear@15 49 Color(0.4, 0.2, 0.15, 1.0), /* bottom off color */
nuclear@14 50 Color(0.8, 0.8, 0.8, 1.0), /* lit bevel */
nuclear@15 51 Color(0.35, 0.35, 0.35, 1.0), /* shadowed bevel */
nuclear@14 52 Color(0.8, 0.25, 0.18, 1.0), /* cursor color */
nuclear@14 53 Color(0.68, 0.85, 1.3, 1.0), /* selection color */
nuclear@14 54 Color(0.75, 0.1, 0.095, 1.0) /* check color */
nuclear@14 55 };
nuclear@14 56
nuclear@14 57
nuclear@14 58 #define JLEFT -1.0f
nuclear@14 59 #define JCENTER 0.0f
nuclear@14 60 #define JRIGHT 1.0f
nuclear@14 61
nuclear@14 62 enum { FRAME_INSET, FRAME_OUTSET };
nuclear@14 63
nuclear@7 64 extern int view_xsz, view_ysz;
nuclear@13 65 extern float view_aspect;
nuclear@13 66 extern unsigned int prog_ui, prog_font, prog_color;
nuclear@7 67 extern struct dtx_font *font;
nuclear@7 68
nuclear@7 69 static void draw_label(const Widget *w);
nuclear@13 70 static void draw_button(const Widget *w);
nuclear@15 71 static void draw_checkbox(const Widget *w);
nuclear@15 72 static void draw_slider(const Widget *w);
nuclear@15 73 static void draw_rect(const Widget *w, const Vec2 &pos, const Vec2 &sz, const Color &color);
nuclear@15 74 static void draw_rect(const Widget *w, const Vec2 &pos, const Vec2 &sz, const Color &ctop, const Color &cbot);
nuclear@15 75 static void draw_shadow_text(const Widget *w, float justify, float x, float y, const Color &col, const char *text, float press = 0.0);
nuclear@15 76 static void draw_shadow_text(const Widget *w, float justify, float x, float y, const char *text, float press = 0.0);
nuclear@15 77 static void draw_text(const Widget *w, float justify, float x, float y, const char *text);
nuclear@15 78 static void draw_frame(const Widget *w, const Vec2 &pos, const Vec2 &sz, float inset);
nuclear@15 79 static float lerp(float a, float b, float t);
nuclear@14 80 static Color lerp(const Color &a, const Color &b, float t);
nuclear@7 81
nuclear@7 82 static struct {
nuclear@7 83 const char *name;
nuclear@7 84 WidgetDrawFunc func;
nuclear@7 85 } widget_funcs[] = {
nuclear@7 86 { "label", draw_label },
nuclear@13 87 { "button", draw_button },
nuclear@15 88 { "checkbox", draw_checkbox },
nuclear@15 89 { "slider", draw_slider },
nuclear@7 90 {0, 0}
nuclear@7 91 };
nuclear@7 92
nuclear@7 93 static std::map<std::string, WidgetDrawFunc> funcmap;
nuclear@7 94
nuclear@9 95
nuclear@10 96 extern "C" __attribute__ ((used))
nuclear@9 97 WidgetDrawFunc get_widget_func(const char *name)
nuclear@7 98 {
nuclear@7 99 static bool initialized;
nuclear@7 100
nuclear@7 101 if(!initialized) {
nuclear@7 102 for(int i=0; widget_funcs[i].func; i++) {
nuclear@7 103 funcmap[widget_funcs[i].name] = widget_funcs[i].func;
nuclear@7 104 }
nuclear@7 105 initialized = true;
nuclear@7 106 }
nuclear@7 107 return funcmap[name];
nuclear@7 108 }
nuclear@7 109
nuclear@11 110 // register ourselves as a built-in theme
nuclear@11 111 GOATKIT_BUILTIN_THEME("istereo", get_widget_func);
nuclear@11 112
nuclear@7 113 static void begin_drawing(const Widget *w)
nuclear@7 114 {
nuclear@14 115 //Vec2 pos = w->get_position();
nuclear@7 116
nuclear@7 117 glEnable(GL_BLEND);
nuclear@7 118 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@7 119
nuclear@7 120 gl_matrix_mode(GL_MODELVIEW);
nuclear@7 121 gl_push_matrix();
nuclear@7 122 gl_load_identity();
nuclear@14 123 //gl_translatef(pos.x, pos.y, 0);
nuclear@7 124 }
nuclear@7 125
nuclear@7 126 static void end_drawing(const Widget *w)
nuclear@7 127 {
nuclear@7 128 gl_matrix_mode(GL_MODELVIEW);
nuclear@7 129 gl_pop_matrix();
nuclear@7 130 }
nuclear@7 131
nuclear@7 132 static void draw_label(const Widget *w)
nuclear@7 133 {
nuclear@7 134 Vec2 pos = w->get_position();
nuclear@15 135 Vec2 sz = w->get_size();
nuclear@7 136 float vis = w->get_visibility();
nuclear@7 137 if(vis < VIS_THRES) return;
nuclear@7 138
nuclear@7 139 begin_drawing(w);
nuclear@15 140 draw_shadow_text(w, JLEFT, pos.x, pos.y + sz.y / 2.0, w->get_text());
nuclear@7 141 end_drawing(w);
nuclear@7 142 }
nuclear@7 143
nuclear@13 144 static void draw_button(const Widget *w)
nuclear@13 145 {
nuclear@15 146 float vis = w->get_visibility();
nuclear@15 147 if(vis < VIS_THRES) return;
nuclear@15 148
nuclear@13 149 Vec2 pos = w->get_position();
nuclear@13 150 Vec2 sz = w->get_size();
nuclear@14 151 float press = w->get_pressed();
nuclear@13 152
nuclear@14 153 Color tcol = lerp(colors[TOP_COLOR], colors[BOTTOM_COLOR], press);
nuclear@14 154 Color bcol = lerp(colors[BOTTOM_COLOR], colors[TOP_COLOR], press);
nuclear@14 155
nuclear@13 156 begin_drawing(w);
nuclear@13 157
nuclear@15 158 draw_frame(w, pos, sz, press);
nuclear@15 159 draw_rect(w, pos, sz, tcol, bcol);
nuclear@15 160 //draw_rect(w, Vec2(pos.x + sz.x / 2.0 - 2.0, pos.y), Vec2(4.0, sz.y),
nuclear@14 161 // Color(0.4, 0.5, 1.0));
nuclear@15 162 draw_shadow_text(w, JCENTER, pos.x + sz.x / 2.0, pos.y + sz.y / 2.0, w->get_text(), press);
nuclear@13 163
nuclear@13 164 end_drawing(w);
nuclear@13 165 }
nuclear@13 166
nuclear@15 167 static void draw_checkbox(const Widget *w)
nuclear@14 168 {
nuclear@15 169 float vis = w->get_visibility();
nuclear@15 170 if(vis < VIS_THRES) return;
nuclear@15 171
nuclear@15 172 Vec2 pos = w->get_position();
nuclear@15 173 Vec2 sz = w->get_size();
nuclear@15 174 Vec2 boxsz = Vec2(sz.y * 3.0, sz.y);
nuclear@15 175 Vec2 boxpos = Vec2(pos.x + sz.x - boxsz.x, pos.y);
nuclear@15 176
nuclear@15 177 float checked = ((CheckBox*)w)->get_checked();
nuclear@15 178
nuclear@15 179 float vcenter = boxpos.y + boxsz.y / 2.0;
nuclear@15 180
nuclear@15 181 begin_drawing(w);
nuclear@15 182
nuclear@15 183 draw_frame(w, boxpos, boxsz, 1.0);
nuclear@15 184 Color tcol = lerp(colors[TOP_OFF_COLOR], colors[TOP_ON_COLOR], checked);
nuclear@15 185 Color bcol = lerp(colors[BOTTOM_OFF_COLOR], colors[BOTTOM_ON_COLOR], checked);
nuclear@15 186 draw_rect(w, boxpos, boxsz, bcol, tcol);
nuclear@15 187
nuclear@15 188 draw_shadow_text(w, JLEFT, boxpos.x + 2, vcenter, "ON", 0.0);
nuclear@15 189 draw_shadow_text(w, JRIGHT, boxpos.x + boxsz.x - 3, vcenter, "OFF", 0.0);
nuclear@15 190
nuclear@15 191 Vec2 knobpos = Vec2(0, boxpos.y + 1.0);
nuclear@15 192 Vec2 knobsz = Vec2(boxsz.x / 2.0, boxsz.y - 2.0);
nuclear@15 193
nuclear@15 194 knobpos.x = lerp(boxpos.x + 1.0, boxpos.x + boxsz.x / 2.0, checked);
nuclear@15 195
nuclear@15 196 draw_frame(w, knobpos, knobsz, 0.0);
nuclear@15 197 draw_rect(w, knobpos, knobsz, colors[TOP_COLOR], colors[BOTTOM_COLOR]);
nuclear@15 198
nuclear@15 199 draw_shadow_text(w, JRIGHT, boxpos.x - 2.0, vcenter, w->get_text(), 0.0);
nuclear@15 200
nuclear@15 201 end_drawing(w);
nuclear@14 202 }
nuclear@14 203
nuclear@15 204 static void draw_slider(const Widget *w)
nuclear@13 205 {
nuclear@15 206 float vis = w->get_visibility();
nuclear@15 207 if(vis < VIS_THRES) return;
nuclear@15 208
nuclear@15 209 float nval = ((Slider*)w)->get_value_norm();
nuclear@15 210
nuclear@15 211 Vec2 pos = w->get_position();
nuclear@15 212 Vec2 sz = w->get_size();
nuclear@15 213 Vec2 tsz = Vec2(sz.y * 0.5, sz.y);
nuclear@15 214 Vec2 tpos = Vec2(pos.x + sz.x * nval - tsz.x / 2.0, pos.y);
nuclear@15 215
nuclear@15 216 // modify original pos/size to correspond to the trough geometry
nuclear@15 217 sz.y /= 5.0;
nuclear@15 218 pos.y += sz.y * 2.0;
nuclear@15 219
nuclear@15 220 begin_drawing(w);
nuclear@15 221
nuclear@15 222 // draw trough
nuclear@15 223 draw_frame(w, pos, sz, 1.0);
nuclear@15 224 draw_rect(w, pos, sz, colors[BOTTOM_COLOR], colors[TOP_COLOR]);
nuclear@15 225
nuclear@15 226 // draw thumb
nuclear@15 227 draw_frame(w, tpos, tsz, 0.0);
nuclear@15 228 draw_rect(w, tpos, tsz, colors[TOP_COLOR], colors[BOTTOM_COLOR]);
nuclear@15 229
nuclear@15 230 end_drawing(w);
nuclear@15 231 }
nuclear@15 232
nuclear@15 233 static void draw_rect(const Widget *w, const Vec2 &pos, const Vec2 &sz, const Color &color)
nuclear@15 234 {
nuclear@15 235 draw_rect(w, pos, sz, color, color);
nuclear@15 236 }
nuclear@15 237
nuclear@15 238 static void draw_rect(const Widget *w, const Vec2 &pos, const Vec2 &sz, const Color &ctop, const Color &cbot)
nuclear@15 239 {
nuclear@15 240 float vis = w ? w->get_visibility() : 1.0;
nuclear@15 241 float act = w ? w->get_active() : 1.0;
nuclear@13 242 float aspect = sz.x / sz.y;
nuclear@13 243
nuclear@15 244 float alpha = vis * (act * 0.5 + 0.5);
nuclear@15 245
nuclear@13 246 bind_program(prog_color);
nuclear@13 247
nuclear@13 248 gl_begin(GL_QUADS);
nuclear@15 249 gl_color4f(cbot.r, cbot.g, cbot.b, cbot.a * alpha);
nuclear@13 250 gl_texcoord2f(0, 1);
nuclear@14 251 gl_vertex3f(pos.x, pos.y, 0);
nuclear@13 252 gl_texcoord2f(aspect, 1);
nuclear@14 253 gl_vertex3f(pos.x + sz.x, pos.y, 0);
nuclear@15 254 gl_color4f(ctop.r, ctop.g, ctop.b, ctop.a * alpha);
nuclear@13 255 gl_texcoord2f(aspect, 0);
nuclear@14 256 gl_vertex3f(pos.x + sz.x, pos.y + sz.y, 0);
nuclear@13 257 gl_texcoord2f(0, 0);
nuclear@14 258 gl_vertex3f(pos.x, pos.y + sz.y, 0);
nuclear@13 259 gl_end();
nuclear@13 260 }
nuclear@13 261
nuclear@15 262 static void draw_shadow_text(const Widget *w, float justify, float x, float y, const Color &col, const char *text, float press)
nuclear@15 263 {
nuclear@15 264 static const Color cshad = Color(0.1, 0.1, 0.1, 1.0);
nuclear@15 265
nuclear@15 266 float xoffs = 1.0 - press;
nuclear@15 267 float yoffs = 1.0 - press;
nuclear@15 268
nuclear@15 269 Color orig = colors[TEXT_COLOR];
nuclear@15 270 colors[TEXT_COLOR] = cshad;
nuclear@15 271 colors[TEXT_COLOR].a = (1.0 - press);
nuclear@15 272 draw_text(w, justify, x + xoffs, y - yoffs, text);
nuclear@15 273 colors[TEXT_COLOR] = col;
nuclear@15 274 draw_text(w, justify, x, y, text);
nuclear@15 275 colors[TEXT_COLOR] = orig;
nuclear@15 276 }
nuclear@15 277
nuclear@15 278 static void draw_shadow_text(const Widget *w, float justify, float x, float y, const char *text, float press)
nuclear@15 279 {
nuclear@15 280 draw_shadow_text(w, justify, x, y, Color(1.0, 1.0, 1.0, 1.0), text, press);
nuclear@15 281 }
nuclear@15 282
nuclear@15 283 static void draw_text(const Widget *w, float justify, float x, float y, const char *text)
nuclear@7 284 {
nuclear@7 285 struct dtx_glyphmap *gmap = dtx_get_font_glyphmap_idx(font, 0);
nuclear@7 286 dtx_use_font(font, dtx_get_glyphmap_ptsize(gmap));
nuclear@7 287
nuclear@15 288 float vis = w ? w->get_visibility() : 1.0;
nuclear@15 289 float act = w ? w->get_active() : 1.0;
nuclear@15 290
nuclear@14 291 float twidth = dtx_string_width(text);
nuclear@14 292 float thalf = twidth / 2.0;
nuclear@15 293 float theight = dtx_line_height();
nuclear@7 294
nuclear@7 295 gl_matrix_mode(GL_MODELVIEW);
nuclear@7 296 gl_push_matrix();
nuclear@7 297 gl_load_identity();
nuclear@15 298 gl_translatef(x - thalf - justify * thalf, y - theight * 0.25, 0);
nuclear@7 299
nuclear@7 300 bind_program(prog_font);
nuclear@15 301 const Color &tcol = colors[TEXT_COLOR];
nuclear@15 302 set_uniform_float4(prog_font, "ucolor", tcol.r, tcol.g, tcol.b, tcol.a * vis * (act * 0.5 + 0.5));
nuclear@14 303 gl_apply_xform(prog_font);
nuclear@7 304
nuclear@7 305 dtx_string(text);
nuclear@7 306
nuclear@7 307 gl_matrix_mode(GL_MODELVIEW);
nuclear@7 308 gl_pop_matrix();
nuclear@9 309 }
nuclear@14 310
nuclear@15 311 static void draw_frame(const Widget *widget, const Vec2 &pos, const Vec2 &sz, float inset)
nuclear@14 312 {
nuclear@15 313 float vis = widget ? widget->get_visibility() : 1.0;
nuclear@15 314 float act = widget ? widget->get_active() : 1.0;
nuclear@15 315 float offs = 300.0 * (1.0 - vis);
nuclear@15 316
nuclear@15 317 float alpha = vis * (act * 0.5 + 0.5);
nuclear@15 318
nuclear@14 319 float x = pos.x - BEVEL;
nuclear@14 320 float y = pos.y - BEVEL;
nuclear@14 321 float w = sz.x + BEVEL * 2.0;
nuclear@14 322 float h = sz.y + BEVEL * 2.0;
nuclear@14 323 float b = BEVEL;
nuclear@14 324
nuclear@14 325 Color tcol = lerp(colors[BEVEL_LIT_COLOR], colors[BEVEL_SHAD_COLOR], inset);
nuclear@14 326 Color bcol = lerp(colors[BEVEL_SHAD_COLOR], colors[BEVEL_LIT_COLOR], inset);
nuclear@14 327
nuclear@14 328 bind_program(prog_color);
nuclear@14 329
nuclear@14 330 gl_begin(GL_QUADS);
nuclear@15 331 gl_color4f(tcol.r, tcol.g, tcol.b, tcol.a * alpha);
nuclear@15 332 gl_vertex2f(x + b + offs, y + h - b);
nuclear@15 333 gl_vertex2f(x + w - b + offs, y + h - b);
nuclear@15 334 gl_vertex2f(x + w + offs, y + h);
nuclear@15 335 gl_vertex2f(x + offs, y + h);
nuclear@14 336
nuclear@15 337 gl_vertex2f(x + b, y + b + offs);
nuclear@15 338 gl_vertex2f(x, y + offs);
nuclear@15 339 gl_vertex2f(x, y + h + offs);
nuclear@15 340 gl_vertex2f(x + b, y + h - b + offs);
nuclear@14 341
nuclear@15 342 gl_color4f(bcol.r, bcol.g, bcol.b, bcol.a * alpha);
nuclear@15 343 gl_vertex2f(x - offs, y);
nuclear@15 344 gl_vertex2f(x + b - offs, y + b);
nuclear@15 345 gl_vertex2f(x + w - b - offs, y + b);
nuclear@15 346 gl_vertex2f(x + w - offs, y);
nuclear@14 347
nuclear@15 348 gl_vertex2f(x + w - b, y + b - offs);
nuclear@15 349 gl_vertex2f(x + w, y - offs);
nuclear@15 350 gl_vertex2f(x + w, y + h - offs);
nuclear@15 351 gl_vertex2f(x + w - b, y + h - b - offs);
nuclear@14 352 gl_end();
nuclear@14 353 }
nuclear@14 354
nuclear@15 355 static float lerp(float a, float b, float t)
nuclear@15 356 {
nuclear@15 357 return a + (b - a) * t;
nuclear@15 358 }
nuclear@15 359
nuclear@14 360 static Color lerp(const Color &a, const Color &b, float t)
nuclear@14 361 {
nuclear@14 362 Color res;
nuclear@14 363 res.r = a.r + (b.r - a.r) * t;
nuclear@14 364 res.g = a.g + (b.g - a.g) * t;
nuclear@14 365 res.b = a.b + (b.b - a.b) * t;
nuclear@14 366 return res;
nuclear@14 367 }