if no b/a area enabled some speed up when opening images

2010-09-09 16:17:56 -07:00
commit 459a8e4b0e
597 changed files with 121217 additions and 0 deletions
--- a/rtgui/imageareapanel.cc
+++ b/rtgui/imageareapanel.cc
@@ -0,0 +1,173 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <imageareapanel.h>
+
+ImageAreaPanel::ImageAreaPanel () : before(NULL), after(NULL) {
+
+    set_border_width (2);
+
+    Gtk::HBox* hb1 = Gtk::manage (new Gtk::HBox ());
+    Gtk::HBox* hb2 = Gtk::manage (new Gtk::HBox ());
+    hscroll = Gtk::manage (new Gtk::HScrollbar ());
+    vscroll = Gtk::manage (new Gtk::VScrollbar ());
+    imageArea = new ImageArea (this);
+    Gtk::Frame* frame = Gtk::manage (new Gtk::Frame ());
+    frame->add (*imageArea);
+    frame->set_shadow_type (Gtk::SHADOW_IN );
+    hb1->pack_start (*frame);
+    hb1->pack_end (*vscroll, Gtk::PACK_SHRINK, 0);
+
+    pack_start (*hb1);
+    vscroll->show ();
+    frame->show ();
+    imageArea->show ();
+    hb1->show ();
+
+    Gtk::HBox* tmp = Gtk::manage (new Gtk::HBox ());
+    hb2->pack_start (*hscroll);
+    Gtk::Requisition vcr = vscroll->size_request ();
+    tmp->set_size_request (vcr.width, vcr.width);
+    hb2->pack_end (*tmp, Gtk::PACK_SHRINK, 0);
+
+    pack_start (*hb2,Gtk::PACK_SHRINK, 0);
+    hscroll->show ();
+    tmp->show ();
+    hb2->show ();
+
+    hscroll->set_update_policy (Gtk::UPDATE_CONTINUOUS);
+    vscroll->set_update_policy (Gtk::UPDATE_CONTINUOUS);
+
+    vscrollconn = vscroll->signal_value_changed().connect( sigc::mem_fun(*this, &ImageAreaPanel::scrollChanged) );
+    hscrollconn = hscroll->signal_value_changed().connect( sigc::mem_fun(*this, &ImageAreaPanel::scrollChanged) );
+
+    imageArea->signal_size_allocate().connect( sigc::mem_fun(*this, &ImageAreaPanel::imageAreaResized) );
+}
+
+ImageAreaPanel::~ImageAreaPanel () {
+
+    delete imageArea;
+}
+
+void ImageAreaPanel::configScrollBars () {
+
+    int imgw, imgh;
+    imageArea->getScrollImageSize (imgw, imgh);
+
+    if (imgw>0 && imgh>0) {
+  
+        int iw = imageArea->get_width ();
+        int ih = imageArea->get_height ();
+
+        hscrollconn.block (true);
+        vscrollconn.block (true);
+
+        hscroll->get_adjustment()->set_upper (imgw);
+        vscroll->get_adjustment()->set_upper (imgh);
+        hscroll->get_adjustment()->set_lower (0);
+        vscroll->get_adjustment()->set_lower (0);
+        hscroll->get_adjustment()->set_step_increment (imgw/100);
+        vscroll->get_adjustment()->set_step_increment (imgh/100);
+        hscroll->get_adjustment()->set_page_increment (imgw/5);
+        vscroll->get_adjustment()->set_page_increment (imgh/5);
+        hscroll->get_adjustment()->set_page_size (iw);
+        vscroll->get_adjustment()->set_page_size (ih);
+        
+        int x, y;
+        imageArea->getScrollPosition (x, y);
+        hscroll->set_value (x);
+        vscroll->set_value (y);
+
+        if (before && this==after)
+            before->synchronize ();
+        else if (after && this==before)
+            after->synchronize ();
+
+        hscrollconn.block (false);
+        vscrollconn.block (false);
+    }
+}
+
+void ImageAreaPanel::refreshScrollBars () {
+    
+    configScrollBars ();
+    queue_draw ();
+}
+
+void ImageAreaPanel::imageAreaResized (Gtk::Allocation& req) {
+
+    configScrollBars ();
+    queue_draw ();
+}
+
+void ImageAreaPanel::scrollChanged () {
+
+    imageArea->setScrollPosition ((int)(hscroll->get_value()), (int)(vscroll->get_value()));
+    imageArea->queue_draw ();
+#ifdef _WIN32
+    gdk_window_process_updates (get_window()->gobj(), true);
+#endif
+    if (before && this==after) 
+        before->synchronize ();
+    else if (after && this==before)
+        after->synchronize ();
+}
+
+void ImageAreaPanel::setBeforeAfterViews (ImageAreaPanel* bef, ImageAreaPanel* aft) {
+
+    before = bef;
+    after = aft;
+    configScrollBars ();
+}
+
+void ImageAreaPanel::zoomChanged () {
+
+    if (after && this==before)
+        after->imageArea->setZoom (imageArea->getZoom ());
+    else if (before && this==after)
+        before->imageArea->setZoom (imageArea->getZoom ());
+}
+
+void ImageAreaPanel::synchronize () {
+
+    hscrollconn.block (true);
+    vscrollconn.block (true);
+
+    if (after && this==before) {
+        int imgw, imgh, x, y;
+        after->imageArea->getScrollImageSize (imgw, imgh);
+        after->imageArea->getScrollPosition (x, y);
+        int bimgw, bimgh;
+        imageArea->getScrollImageSize (bimgw, bimgh);
+        imageArea->setScrollPosition (x*bimgw/imgw, y*bimgh/imgh);
+        imageArea->queue_draw ();
+    }
+    else if (before && this==after) {
+        int imgw, imgh, x, y;
+        before->imageArea->getScrollImageSize (imgw, imgh);
+        before->imageArea->getScrollPosition (x, y);
+        int bimgw, bimgh;
+        imageArea->getScrollImageSize (bimgw, bimgh);
+        imageArea->setScrollPosition (x*bimgw/imgw, y*bimgh/imgh);
+        imageArea->queue_draw ();
+    }
+
+    hscrollconn.block (false);
+    vscrollconn.block (false);
+}
+