222 lines
6.8 KiB
C++
222 lines
6.8 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "previewwindow.h"
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#include "guiutils.h"
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#include "imagearea.h"
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#include "cursormanager.h"
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PreviewWindow::PreviewWindow () : previewHandler(NULL), mainCropWin(NULL), imageArea(NULL), imgX(0), imgY(0), imgW(0), imgH(0), zoom(0.0), isMoving(false), needsUpdate(false) {
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rconn = signal_size_allocate().connect( sigc::mem_fun(*this, &PreviewWindow::on_resized) );
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}
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void PreviewWindow::on_realize () {
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Gtk::DrawingArea::on_realize ();
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add_events(Gdk::EXPOSURE_MASK | Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | Gdk::SCROLL_MASK);
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}
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void PreviewWindow::getObservedFrameArea (int& x, int& y, int& w, int& h) {
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if (mainCropWin) {
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int cropX, cropY, cropW, cropH;
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mainCropWin->getCropRectangle (cropX, cropY, cropW, cropH);
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// translate it to screen coordinates
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x = imgX + round(cropX*zoom);
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y = imgY + round(cropY*zoom);
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w = round(cropW * zoom);
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h = round(cropH * zoom);
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}
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}
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void PreviewWindow::updatePreviewImage () {
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int W = get_width(), H = get_height();
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Glib::RefPtr<Gdk::Window> wind = get_window();
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if( ! wind ) {
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needsUpdate = true;
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return;
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}
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backBuffer = Gdk::Pixmap::create (wind, W, H, -1);
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backBuffer->draw_rectangle (get_style()->get_base_gc(Gtk::STATE_NORMAL), true, 0, 0, W, H);
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if (previewHandler) {
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Glib::RefPtr<Gdk::Pixbuf> resPixbuf = previewHandler->getRoughImage (W, H, zoom);
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if (resPixbuf) {
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imgW = resPixbuf->get_width();
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imgH = resPixbuf->get_height();
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imgX = (W-imgW)/2;
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imgY = (H-imgH)/2;
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backBuffer->draw_pixbuf (get_style()->get_base_gc(Gtk::STATE_NORMAL), resPixbuf, 0, 0, imgX, imgY, -1, -1, Gdk::RGB_DITHER_NONE, 0, 0);
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Cairo::RefPtr<Cairo::Context> cr = backBuffer->create_cairo_context();
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if (previewHandler->getCropParams().enabled)
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drawCrop (cr, imgX, imgY, imgW, imgH, 0, 0, zoom, previewHandler->getCropParams(), true, false);
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}
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}
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}
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void PreviewWindow::setPreviewHandler (PreviewHandler* ph) {
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previewHandler = ph;
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if (previewHandler)
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previewHandler->addPreviewImageListener (this);
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}
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void PreviewWindow::on_resized (Gtk::Allocation& req) {
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updatePreviewImage ();
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queue_draw ();
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}
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bool PreviewWindow::on_expose_event (GdkEventExpose* event) {
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if (backBuffer) {
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Glib::RefPtr<Gdk::Window> window = get_window();
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int bufferW, bufferH;
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backBuffer->get_size (bufferW, bufferH);
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if (!mainCropWin && imageArea) {
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mainCropWin = imageArea->getMainCropWindow ();
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if (mainCropWin)
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mainCropWin->addCropWindowListener (this);
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}
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if ((get_width()!=bufferW && get_height()!=bufferH) || needsUpdate) {
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needsUpdate = false;
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updatePreviewImage ();
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}
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window->draw_drawable (get_style()->get_base_gc(Gtk::STATE_NORMAL), backBuffer, 0, 0, 0, 0, -1, -1);
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if (mainCropWin && zoom > 0.0) {
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if(mainCropWin->getZoom() > mainCropWin->cropHandler.getFitZoom()) {
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Cairo::RefPtr<Cairo::Context> cr = get_window()->create_cairo_context();
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int x, y, w, h;
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getObservedFrameArea (x, y, w, h);
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double rectX = x + 0.5;
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double rectY = y + 0.5;
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double rectW = std::min(w, (int)(imgW - (x-imgX) - 1));
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double rectH = std::min(h, (int)(imgH - (y-imgY) - 1));
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// draw a black "shadow" line
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cr->set_source_rgba (0.0, 0.0, 0.0, 0.65);
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cr->set_line_width (1);
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cr->rectangle (rectX+1., rectY+1, rectW, rectH);
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cr->stroke ();
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// draw a "frame" line. Color of frame line can be set in preferences
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cr->set_source_rgba(options.navGuideBrush[0], options.navGuideBrush[1], options.navGuideBrush[2], options.navGuideBrush[3]); //( 1.0, 1.0, 1.0, 1.0);
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cr->rectangle (rectX, rectY, rectW, rectH);
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cr->stroke ();
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}
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}
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}
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return true;
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}
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void PreviewWindow::previewImageChanged () {
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updatePreviewImage ();
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queue_draw ();
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}
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void PreviewWindow::setImageArea (ImageArea* ia) {
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imageArea = ia;
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mainCropWin = ia->getMainCropWindow ();
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if (mainCropWin)
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mainCropWin->addCropWindowListener (this);
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}
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void PreviewWindow::cropPositionChanged (CropWindow* w) {
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queue_draw ();
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}
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void PreviewWindow::cropWindowSizeChanged (CropWindow* w) {
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queue_draw ();
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}
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void PreviewWindow::cropZoomChanged (CropWindow* w) {
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queue_draw ();
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}
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bool PreviewWindow::on_motion_notify_event (GdkEventMotion* event) {
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if (!mainCropWin)
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return true;
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if(mainCropWin->getZoom() > mainCropWin->cropHandler.getFitZoom()) {
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int x, y, w, h;
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getObservedFrameArea (x, y, w, h);
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bool inside = event->x > x-6 && event->x < x+w-1+6 && event->y > y-6 && event->y < y+h-1+6;
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bool moreInside = event->x > x+6 && event->x < x+w-1-6 && event->y > y+6 && event->y < y+h-1-6;
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if (isMoving)
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mainCropWin->remoteMove ((event->x - press_x)/zoom, (event->y - press_y)/zoom);
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else if (inside && !moreInside)
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cursorManager.setCursor (get_window(), CSClosedHand);
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else
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cursorManager.setCursor (get_window(), CSArrow);
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}
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return true;
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}
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bool PreviewWindow::on_button_press_event (GdkEventButton* event) {
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if (!mainCropWin)
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return true;
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if(mainCropWin->getZoom() > mainCropWin->cropHandler.getFitZoom()) {
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int x, y, w, h;
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getObservedFrameArea (x, y, w, h);
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bool inside = event->x > x-6 && event->x < x+w-1+6 && event->y > y-6 && event->y < y+h-1+6;
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bool moreInside = event->x > x+6 && event->x < x+w-1-6 && event->y > y+6 && event->y < y+h-1-6;
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if (!isMoving) {
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isMoving = true;
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if (!inside || moreInside) {
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mainCropWin->remoteMove ((event->x - (x+w/2))/zoom, (event->y - (y+h/2))/zoom);
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press_x = x+w/2;
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press_y = y+h/2;
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}
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else {
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press_x = event->x;
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press_y = event->y;
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}
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cursorManager.setCursor (get_window(), CSClosedHand);
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}
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}
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return true;
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}
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bool PreviewWindow::on_button_release_event (GdkEventButton* event) {
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if (!mainCropWin)
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return true;
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if (isMoving) {
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isMoving = false;
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cursorManager.setCursor (get_window(), CSArrow);
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mainCropWin->remoteMoveReady ();
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}
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return true;
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}
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