293 lines
8.2 KiB
C++
293 lines
8.2 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(nullptr), mainCropWin(nullptr), imageArea(nullptr), imgX(0), imgY(0), imgW(0), imgH(0),
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zoom(0.0), isMoving(false), needsUpdate(false), cursor_type(CSUndefined)
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{
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set_name("PreviewWindow");
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get_style_context()->add_class("drawingarea");
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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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{
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Gtk::DrawingArea::on_realize ();
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add_events(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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{
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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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{
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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 = Cairo::RefPtr<BackBuffer> ( new BackBuffer(W, H, Cairo::FORMAT_ARGB32) );
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Cairo::RefPtr<Cairo::ImageSurface> surface = backBuffer->getSurface();
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Glib::RefPtr<Gtk::StyleContext> style = get_style_context();
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Cairo::RefPtr<Cairo::Context> cc = Cairo::Context::create(surface);
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cc->set_source_rgba (0., 0., 0., 0.);
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cc->set_operator (Cairo::OPERATOR_CLEAR);
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cc->paint ();
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cc->set_operator (Cairo::OPERATOR_OVER);
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cc->set_antialias(Cairo::ANTIALIAS_NONE);
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cc->set_line_join(Cairo::LINE_JOIN_MITER);
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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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Gdk::Cairo::set_source_pixbuf(cc, resPixbuf, imgX, imgY);
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cc->rectangle(imgX, imgY, imgW, imgH);
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cc->fill();
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if (previewHandler->getCropParams().enabled) {
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drawCrop (cc, 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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}
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void PreviewWindow::setPreviewHandler (PreviewHandler* ph)
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{
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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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}
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void PreviewWindow::on_resized (Gtk::Allocation& req)
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{
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updatePreviewImage ();
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queue_draw ();
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}
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bool PreviewWindow::on_draw(const ::Cairo::RefPtr< Cairo::Context> &cr)
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{
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const Glib::RefPtr<Gtk::StyleContext> style = get_style_context();
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style->render_background(cr, 0, 0, get_width(), get_height());
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if (!backBuffer) {
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return true;
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}
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int bufferW, bufferH;
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bufferW = backBuffer->getWidth();
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bufferH = backBuffer->getHeight();
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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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}
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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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backBuffer->copySurface(cr, NULL);
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if (mainCropWin && zoom > 0.0) {
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int x, y, w, h;
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getObservedFrameArea (x, y, w, h);
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if (x>imgX || y>imgY || w < imgW || h < imgH) {
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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->set_line_join(Cairo::LINE_JOIN_MITER);
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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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style->render_frame (cr, 0, 0, get_width(), get_height());
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return true;
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}
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void PreviewWindow::previewImageChanged ()
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{
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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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{
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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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}
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void PreviewWindow::cropPositionChanged (CropWindow* w)
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{
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queue_draw ();
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}
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void PreviewWindow::cropWindowSizeChanged (CropWindow* w)
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{
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queue_draw ();
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}
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void PreviewWindow::cropZoomChanged (CropWindow* w)
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{
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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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{
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if (!mainCropWin) {
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return true;
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}
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int x, y, w, h;
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getObservedFrameArea (x, y, w, h);
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if (x>imgX || y>imgY || w < imgW || h < imgH) {
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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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CursorShape newType = cursor_type;
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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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press_x = event->x;
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press_y = event->y;
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} else if (inside && !moreInside) {
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newType = CSClosedHand;
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} else {
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newType = CSArrow;
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}
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if (newType != cursor_type) {
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cursor_type = newType;
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CursorManager::setWidgetCursor(get_window(), cursor_type);
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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_press_event (GdkEventButton* event)
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{
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if (!mainCropWin) {
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return true;
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}
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int x, y, w, h;
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getObservedFrameArea (x, y, w, h);
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if (x>imgX || y>imgY || w < imgW || h < imgH) {
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if (!isMoving) {
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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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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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} 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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if (cursor_type != CSClosedHand) {
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cursor_type = CSClosedHand;
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CursorManager::setWidgetCursor(get_window(), cursor_type);
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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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bool PreviewWindow::on_button_release_event (GdkEventButton* event)
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{
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if (!mainCropWin) {
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return true;
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}
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if (isMoving) {
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isMoving = false;
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if (cursor_type != CSArrow) {
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cursor_type = CSArrow;
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CursorManager::setWidgetCursor(get_window(), cursor_type);
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}
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mainCropWin->remoteMoveReady ();
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}
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return true;
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}
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