rtgui/thumbbrowserentrybase.cc

   1 /*
   2  *  This file is part of RawTherapee.
   3  *
   4  *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
   5  *
   6  *  RawTherapee is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  RawTherapee is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #include <thumbbrowserentrybase.h>
  20 #include <thumbbrowserbase.h>
  21 #include <options.h>
  22 #include <mytime.h>
  23
  24 ThumbBrowserEntryBase::ThumbBrowserEntryBase (const Glib::ustring& fname)
  25     : filename(fname), selected(false), drawable(false),framed(false), processing(false),
  26         italicstyle(false), preview(NULL), exifline(""), datetimeline(""),
  27         buttonSet(NULL), updatepriority(false), redrawRequests(0),
  28         parent(NULL), exp_width(0), exp_height(0) {
  29
  30     shortname = Glib::path_get_basename (fname);
  31     dispname = shortname;
  32
  33     upperMargin = 6;
  34     borderWidth = 1;
  35     sideMargin = 8;
  36     lowerMargin = 8;
  37     textGap = 6;
  38
  39     ofsX = ofsY = 0;
  40 }
  41
  42 ThumbBrowserEntryBase::~ThumbBrowserEntryBase () {
  43
  44     delete [] preview;
  45     delete buttonSet;
  46 }
  47
  48 void ThumbBrowserEntryBase::addButtonSet (LWButtonSet* bs) {
  49
  50     buttonSet = bs;
  51 }
  52
  53 void ThumbBrowserEntryBase::updateBackBuffer () {
  54
  55     if (!parent)
  56         return;
  57
  58     Gtk::Widget* w = parent->getDrawingArea ();
  59
  60     backBuffer = Gdk::Pixmap::create (w->get_window(), exp_width, exp_height);
  61
  62     bbSelected = selected;
  63     bbFramed = framed;
  64     bbPreview = preview;
  65
  66     Glib::RefPtr<Gdk::GC> gc_ = Gdk::GC::create (backBuffer);
  67
  68     Gdk::Color textn = w->get_style()->get_text(Gtk::STATE_NORMAL);
  69     Gdk::Color texts = w->get_style()->get_text(Gtk::STATE_SELECTED);
  70     Gdk::Color bgn = w->get_style()->get_bg(Gtk::STATE_NORMAL);
  71     Gdk::Color bgs = w->get_style()->get_bg(Gtk::STATE_SELECTED);
  72
  73     // clear area, draw frames and background
  74     gc_->set_foreground (bgn);
  75     gc_->set_background (bgn);
  76     backBuffer->draw_rectangle (gc_, true, 0, 0, exp_width, exp_height);
  77     Cairo::RefPtr<Cairo::Context> cr = backBuffer->create_cairo_context();
  78     drawFrame (cr, bgs, bgn);
  79
  80     // calculate height of button set
  81     int bsHeight = 0;
  82     if (buttonSet) {
  83         int tmp;
  84         buttonSet->getAllocatedDimensions (tmp, bsHeight);
  85     }
  86
  87     // draw preview frame
  88     backBuffer->draw_rectangle (gc_, false, (exp_width-prew)/2, upperMargin+bsHeight, prew+1, preh+1);
  89     // draw thumbnail image
  90     if (preview) {
  91         prex = borderWidth + (exp_width-prew)/2;
  92         prey = upperMargin+bsHeight+borderWidth;
  93         backBuffer->draw_rgb_image (gc_, prex, prey, prew, preh, Gdk::RGB_DITHER_NONE, preview, prew*3);
  94     }
  95
  96     customBackBufferUpdate (cr);
  97
  98     // draw icons onto the thumbnail area
  99     bbIcons = getIconsOnImageArea ();
 100
 101     int infow, infoh;
 102     getTextSizes (infow, infoh);
 103
 104     int iofs_x = 4, iofs_y = 4;
 105     int igap = 2;
 106     int istartx = prex;
 107     int istarty = prey;
 108
 109     if (options.overlayedFileNames) {
 110         cr->begin_new_path ();
 111         cr->rectangle (istartx, istarty, prew, fnlabh+dtlabh+exlabh+2*iofs_y);
 112         if ((texts.get_red_p()+texts.get_green_p()+texts.get_blue_p())/3 > 0.5)
 113             cr->set_source_rgba (0, 0, 0, 0.5);
 114         else
 115             cr->set_source_rgba (1, 1, 1, 0.5);
 116         cr->fill ();
 117     }
 118
 119     istartx += iofs_x;
 120     istarty += iofs_y;
 121
 122     if (bbIcons.size()>0) {
 123         int iwidth = igap;
 124         int iheight = 0;
 125         for (int i=0; i<bbIcons.size(); i++) {
 126             iwidth += bbIcons[i]->get_width() + igap;
 127             if (bbIcons[i]->get_height() > iheight)
 128                 iheight = bbIcons[i]->get_height();
 129         }
 130         iheight += 2*igap;
 131         if (!options.overlayedFileNames) {
 132             cr->begin_new_path ();
 133             cr->rectangle (istartx-igap, istarty-igap, iwidth, iheight);
 134             cr->set_source_rgba (0, 0, 0, 0.75);
 135             cr->fill ();
 136         }
 137         for (int i=0; i<bbIcons.size(); i++) {
 138             backBuffer->draw_pixbuf (gc_, bbIcons[i], 0, 0, istartx, istarty, bbIcons[i]->get_width(), bbIcons[i]->get_height(), Gdk::RGB_DITHER_NONE, 0, 0);
 139             istartx += bbIcons[i]->get_width() + igap;
 140         }
 141     }
 142
 143     int textposx_fn, textposx_ex, textposx_dt, textposy, textw;
 144     if (!options.overlayedFileNames) {
 145         textposx_fn = exp_width/2 - fnlabw/2;
 146         if (textposx_fn<0) textposx_fn = 0;
 147         textposx_ex = exp_width/2 - exlabw/2;
 148         if (textposx_ex<0) textposx_ex = 0;
 149         textposx_dt = exp_width/2 - dtlabw/2;
 150         if (textposx_dt<0) textposx_dt = 0;
 151         textposy = upperMargin + bsHeight + 2*borderWidth + preh + borderWidth + textGap;
 152         textw = exp_width - 2*textGap;
 153         gc_->set_foreground (selected ? texts : textn);
 154     }
 155     else {
 156         textposx_fn = istartx;
 157         textposx_ex = istartx;
 158         textposx_dt = istartx;
 159         textposy = istarty;
 160         textw = prew - (istartx - prex);
 161         gc_->set_foreground (texts);
 162     }
 163
 164     // draw file name
 165     Glib::RefPtr<Pango::Context> context = w->get_pango_context () ;
 166     Pango::FontDescription fontd = context->get_font_description ();
 167     fontd.set_weight (Pango::WEIGHT_BOLD);
 168     if (italicstyle)
 169         fontd.set_style (Pango::STYLE_ITALIC);
 170     else
 171         fontd.set_style (Pango::STYLE_NORMAL);
 172
 173     context->set_font_description (fontd);
 174     Glib::RefPtr<Pango::Layout> fn = w->create_pango_layout (dispname);
 175     fn->set_width (textw*Pango::SCALE);
 176     fn->set_ellipsize (Pango::ELLIPSIZE_MIDDLE);
 177     backBuffer->draw_layout(gc_, textposx_fn, textposy, fn);
 178
 179     fontd.set_weight (Pango::WEIGHT_NORMAL);
 180     fontd.set_style (Pango::STYLE_NORMAL);
 181     context->set_font_description (fontd);
 182
 183     // draw date/time label
 184     int tpos = fnlabh;
 185     if (options.fbShowDateTime && datetimeline!="") {
 186         fn = w->create_pango_layout (datetimeline);
 187         fn->set_width (textw*Pango::SCALE);
 188         fn->set_ellipsize (Pango::ELLIPSIZE_MIDDLE);
 189         backBuffer->draw_layout(gc_, textposx_dt, textposy + tpos, fn);
 190         tpos += dtlabh;
 191     }
 192     // draw basic exif info
 193     if (options.fbShowBasicExif && exifline!="") {
 194         fn = w->create_pango_layout (exifline);
 195         fn->set_width (textw*Pango::SCALE);
 196         fn->set_ellipsize (Pango::ELLIPSIZE_MIDDLE);
 197         backBuffer->draw_layout (gc_, textposx_ex, textposy + tpos, fn);
 198         tpos += exlabh;
 199     }
 200 }
 201
 202 void ThumbBrowserEntryBase::getTextSizes (int& infow, int& infoh) {
 203
 204     if (!parent)
 205         return;
 206
 207     Gtk::Widget* w = parent->getDrawingArea ();
 208
 209     // calculate dimensions of the text based fields
 210     dispname = shortname;
 211
 212     Glib::RefPtr<Pango::Context> context = w->get_pango_context () ;
 213     context->set_font_description (w->get_style()->get_font());
 214
 215     // filename:
 216     Pango::FontDescription fontd = context->get_font_description ();
 217     fontd.set_weight (Pango::WEIGHT_BOLD);
 218     context->set_font_description (fontd);
 219     Glib::RefPtr<Pango::Layout> fn = w->create_pango_layout(shortname);
 220     fn->get_pixel_size (fnlabw, fnlabh);
 221
 222     // datetime
 223     fontd.set_weight (Pango::WEIGHT_NORMAL);
 224     context->set_font_description (fontd);
 225     fn = w->create_pango_layout (datetimeline);
 226     fn->get_pixel_size (dtlabw, dtlabh);
 227
 228     // basic exif data
 229     fn = w->create_pango_layout (exifline);
 230     fn->get_pixel_size (exlabw, exlabh);
 231
 232     // calculate cummulated height of all info fields
 233     infoh = fnlabh;
 234     infow = 0;
 235     // add date/tile size:
 236     if (options.fbShowDateTime) {
 237         infoh += dtlabh;
 238         if (dtlabw + 2*sideMargin > infow)
 239             infow = dtlabw + 2*sideMargin;
 240     }
 241     if (options.fbShowBasicExif) {
 242         infoh += exlabh;
 243         if (exlabw + 2*sideMargin > infow)
 244             infow = exlabw + 2*sideMargin;
 245     }
 246 }
 247
 248 void ThumbBrowserEntryBase::resize (int h) {
 249
 250     delete [] preview;
 251     preview = NULL;
 252     height = h;
 253
 254     // dimensions of the button set
 255     int bsw=0, bsh=0;
 256     if (buttonSet)
 257         buttonSet->getMinimalDimensions (bsw, bsh);
 258
 259     // calculate the height remaining for the thumbnail image
 260     preh = height - upperMargin - 2*borderWidth - lowerMargin - bsh;
 261     int infow, infoh;
 262     if (!options.overlayedFileNames) {
 263         // dimensions of the info text
 264         getTextSizes (infow, infoh);
 265         preh -= infoh + textGap;
 266     }
 267
 268     calcThumbnailSize ();
 269     width = prew + 2*sideMargin + 2*borderWidth;
 270     if (!options.overlayedFileNames) {
 271         width = prew + 2*sideMargin + 2*borderWidth;
 272         if (width<infow + 2*sideMargin + 2*borderWidth)
 273             width = infow + 2*sideMargin + 2*borderWidth;
 274         if (width < bsw + 2*sideMargin + 2*borderWidth)
 275             width = bsw + 2*sideMargin + 2*borderWidth;
 276     }
 277 //    updateBackBuffer ();
 278
 279     refreshThumbnailImage ();
 280     drawable = true;
 281 }
 282
 283 void ThumbBrowserEntryBase::drawFrame (Cairo::RefPtr<Cairo::Context> cr, const Gdk::Color& bg, const Gdk::Color& fg) {
 284
 285     int radius = 8;
 286     if (selected || framed) {
 287         cr->set_antialias (Cairo::ANTIALIAS_SUBPIXEL);
 288         cr->move_to (radius, 0);
 289         cr->arc (exp_width-1-radius, radius, radius, -M_PI/2, 0);
 290         cr->arc (exp_width-1-radius, exp_height-1-radius, radius, 0, M_PI/2);
 291         cr->arc (radius, exp_height-1-radius, radius, M_PI/2, M_PI);
 292         cr->arc (radius, radius, radius, M_PI, -M_PI/2);
 293         cr->close_path ();
 294         if (selected) {
 295             cr->set_source_rgb (bg.get_red_p(), bg.get_green_p(), bg.get_blue_p());
 296             cr->fill_preserve ();
 297         }
 298         cr->set_source_rgb (bg.get_red_p()*2/3, bg.get_green_p()*2/3, bg.get_blue_p()*2/3);
 299         cr->set_line_width (1.0);
 300         cr->stroke ();
 301
 302     }
 303
 304     if (framed) {
 305         cr->set_antialias (Cairo::ANTIALIAS_SUBPIXEL);
 306         cr->move_to (+2+0.5+radius, +2+0.5);
 307         cr->arc (-2+0.5+exp_width-1-radius, +2+0.5+radius, radius, -M_PI/2, 0);
 308         cr->arc (-2+0.5+exp_width-1-radius, -2+0.5+exp_height-1-radius, radius, 0, M_PI/2);
 309         cr->arc (+2+0.5+radius, -2+exp_height-1-radius, radius, M_PI/2, M_PI);
 310         cr->arc (+2+0.5+radius, +2+radius, radius, M_PI, -M_PI/2);
 311         cr->close_path ();
 312         cr->set_source_rgb (fg.get_red_p(), fg.get_green_p(), fg.get_blue_p());
 313         cr->set_line_width (2.0);
 314         cr->stroke ();
 315     }
 316 }
 317
 318 void ThumbBrowserEntryBase::draw () {
 319
 320     if (!drawable)
 321         return;
 322
 323     int bbWidth, bbHeight;
 324     if (backBuffer)
 325         backBuffer->get_size (bbWidth, bbHeight);
 326
 327
 328     if (!backBuffer || selected!=bbSelected || framed!=bbFramed || preview!=bbPreview
 329         || exp_width!=bbWidth || exp_height!=bbHeight || getIconsOnImageArea ()!=bbIcons)
 330         updateBackBuffer ();
 331
 332     if (!parent)
 333         return;
 334
 335     Gtk::Widget* w = parent->getDrawingArea ();
 336
 337     Glib::RefPtr<Gdk::GC> gc_ = Gdk::GC::create (w->get_window());
 338
 339     Gdk::Color textn = w->get_style()->get_text(Gtk::STATE_NORMAL);
 340     Gdk::Color texts = w->get_style()->get_text(Gtk::STATE_SELECTED);
 341     Gdk::Color bgn = w->get_style()->get_bg(Gtk::STATE_NORMAL);
 342     Gdk::Color bgs = w->get_style()->get_bg(Gtk::STATE_SELECTED);
 343
 344     w->get_window()->draw_drawable (gc_, backBuffer, 0, 0, startx + ofsX, starty + ofsY);
 345
 346     // check icon set changes!!!
 347
 348 //    drawProgressBar (window, gc_, selected ? texts : textn, selected ? bgs : bgn, ofsX+startx, exp_width, ofsY+starty + upperMargin+bsHeight+borderWidth+preh+borderWidth+textGap+tpos, fnlabh);
 349
 350     // redraw button set above the thumbnail
 351     if (buttonSet) {
 352         buttonSet->setColors (selected ? bgs : bgn, selected ? bgn : bgs);
 353         buttonSet->redraw (w->get_window()->create_cairo_context());
 354     }
 355 }
 356
 357 void ThumbBrowserEntryBase::setPosition (int x, int y, int w, int h) {
 358
 359     exp_width = w;
 360     exp_height = h;
 361     startx = x;
 362     starty = y;
 363
 364     if (buttonSet)
 365         buttonSet->arrangeButtons (ofsX+x+sideMargin, ofsY+y+upperMargin, w-2*sideMargin, -1);
 366 }
 367
 368 void ThumbBrowserEntryBase::setOffset (int x, int y) {
 369
 370     ofsX = -x;
 371     ofsY = -y;
 372
 373     if (buttonSet)
 374         buttonSet->move (ofsX+startx+sideMargin, ofsY+starty+upperMargin);
 375 }
 376
 377 bool ThumbBrowserEntryBase::inside (int x, int y) {
 378
 379     return x>ofsX+startx && x<ofsX+startx+exp_width && y>ofsY+starty && y<ofsY+starty+exp_height;
 380 }
 381
 382 bool ThumbBrowserEntryBase::insideWindow (int x, int y, int w, int h) {
 383
 384     return !(ofsX+startx>x+w || ofsX+startx+exp_width<x || ofsY+starty>y+h || ofsY+starty+exp_height<y);
 385 }
 386
 387 bool ThumbBrowserEntryBase::motionNotify  (int x, int y) {
 388
 389     return buttonSet ? buttonSet->motionNotify (x, y) : false;
 390 }
 391
 392 bool ThumbBrowserEntryBase::pressNotify   (int button, int type, int bstate, int x, int y) {
 393
 394     return buttonSet ? buttonSet->pressNotify (x, y) : false;
 395 }
 396
 397 bool ThumbBrowserEntryBase::releaseNotify (int button, int type, int bstate, int x, int y) {
 398
 399     return buttonSet ? buttonSet->releaseNotify (x, y) : false;
 400 }
 401 Glib::ustring ThumbBrowserEntryBase::getToolTip (int x, int y) {
 402
 403     return buttonSet ? buttonSet->getToolTip (x, y) : "";
 404 }
 405
 406