Mercurial > hg > svgui
view view/Overview.cpp @ 1528:14c07e445365
Fix compiler warning
author | Chris Cannam |
---|---|
date | Mon, 07 Oct 2019 09:43:31 +0100 |
parents | e540aa5d89cd |
children | a0b2f3b4dd2f |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 Chris Cannam and QMUL. This program 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 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include "Overview.h" #include "layer/Layer.h" #include "data/model/Model.h" #include "base/ZoomConstraint.h" #include <QPaintEvent> #include <QPainter> #include <iostream> //#define DEBUG_OVERVIEW 1 Overview::Overview(QWidget *w) : View(w, false), m_clickedInRange(false), m_dragCentreFrame(0) { setObjectName(tr("Overview")); m_followPan = false; m_followZoom = false; setPlaybackFollow(PlaybackIgnore); m_modelTestTime.start(); bool light = hasLightBackground(); if (light) m_boxColour = Qt::darkGray; else m_boxColour = Qt::lightGray; } void Overview::modelChangedWithin(ModelId modelId, sv_frame_t startFrame, sv_frame_t endFrame) { using namespace std::rel_ops; bool zoomChanged = false; sv_frame_t frameCount = getModelsEndFrame() - getModelsStartFrame(); ZoomLevel zoomLevel { ZoomLevel::FramesPerPixel, int(frameCount / width()) }; if (zoomLevel.level < 1) zoomLevel.level = 1; zoomLevel = getZoomConstraintLevel(zoomLevel, ZoomConstraint::RoundUp); if (zoomLevel != m_zoomLevel) { zoomChanged = true; } if (!zoomChanged) { if (m_modelTestTime.elapsed() < 1000) { for (LayerList::const_iterator i = m_layerStack.begin(); i != m_layerStack.end(); ++i) { auto model = ModelById::get((*i)->getModel()); if (model && (!model->isOK() || !model->isReady())) { return; } } } else { m_modelTestTime.restart(); } } View::modelChangedWithin(modelId, startFrame, endFrame); } void Overview::modelReplaced() { m_playPointerFrame = getAlignedPlaybackFrame(); View::modelReplaced(); } void Overview::registerView(View *view) { m_views.insert(view); update(); } void Overview::unregisterView(View *view) { m_views.erase(view); update(); } void Overview::globalCentreFrameChanged(sv_frame_t #ifdef DEBUG_OVERVIEW f #endif ) { #ifdef DEBUG_OVERVIEW cerr << "Overview::globalCentreFrameChanged: " << f << endl; #endif update(); } void Overview::viewCentreFrameChanged(View *v, sv_frame_t #ifdef DEBUG_OVERVIEW f #endif ) { #ifdef DEBUG_OVERVIEW cerr << "Overview[" << this << "]::viewCentreFrameChanged(" << v << "): " << f << endl; #endif if (m_views.find(v) != m_views.end()) { update(); } } void Overview::viewZoomLevelChanged(View *v, ZoomLevel, bool) { if (v == this) return; if (m_views.find(v) != m_views.end()) { update(); } } void Overview::viewManagerPlaybackFrameChanged(sv_frame_t f) { #ifdef DEBUG_OVERVIEW cerr << "Overview[" << this << "]::viewManagerPlaybackFrameChanged(" << f << "): " << f << endl; #endif bool changed = false; f = getAlignedPlaybackFrame(); if (getXForFrame(m_playPointerFrame) != getXForFrame(f)) changed = true; m_playPointerFrame = f; if (changed) update(); } QColor Overview::getFillWithin() const { return Qt::transparent; } QColor Overview::getFillWithout() const { QColor c = palette().window().color(); c.setAlpha(100); return c; } void Overview::setBoxColour(QColor c) { m_boxColour = c; } void Overview::paintEvent(QPaintEvent *e) { using namespace std::rel_ops; // Recalculate zoom in case the size of the widget has changed. #ifdef DEBUG_OVERVIEW cerr << "Overview::paintEvent: width is " << width() << ", centre frame " << m_centreFrame << endl; #endif sv_frame_t startFrame = getModelsStartFrame(); sv_frame_t frameCount = getModelsEndFrame() - getModelsStartFrame(); ZoomLevel zoomLevel { ZoomLevel::FramesPerPixel, int(frameCount / width()) }; if (zoomLevel.level < 1) zoomLevel.level = 1; zoomLevel = getZoomConstraintLevel(zoomLevel, ZoomConstraint::RoundUp); if (zoomLevel != m_zoomLevel) { m_zoomLevel = zoomLevel; emit zoomLevelChanged(m_zoomLevel, m_followZoom); } sv_frame_t centreFrame = startFrame + sv_frame_t(round(m_zoomLevel.pixelsToFrames(width()/2))); if (centreFrame > (startFrame + getModelsEndFrame())/2) { centreFrame = (startFrame + getModelsEndFrame())/2; } if (centreFrame != m_centreFrame) { #ifdef DEBUG_OVERVIEW cerr << "Overview::paintEvent: Centre frame changed from " << m_centreFrame << " to " << centreFrame << " and thus start frame from " << getStartFrame(); #endif m_centreFrame = centreFrame; #ifdef DEBUG_OVERVIEW cerr << " to " << getStartFrame() << endl; #endif emit centreFrameChanged(m_centreFrame, false, PlaybackIgnore); } View::paintEvent(e); QPainter paint; paint.begin(this); paint.setClipRegion(e->region()); paint.setRenderHints(QPainter::Antialiasing); // We paint a rounded rect for each distinct set of view extents, // and we colour in the inside and outside of the rect that // corresponds to the current view. (One small caveat -- we don't // know which rect that is yet. We'll have to figure it out // somehow...) std::set<std::pair<int, int> > extents; std::vector<QRect> rects; QRect primary; int y = 0; for (ViewSet::iterator i = m_views.begin(); i != m_views.end(); ++i) { if (!*i) continue; View *w = (View *)*i; sv_frame_t f0 = w->getFrameForX(0); sv_frame_t f1 = w->getFrameForX(w->width()); if (f0 >= 0) { sv_frame_t rf0 = w->alignToReference(f0); f0 = alignFromReference(rf0); } if (f1 >= 0) { sv_frame_t rf1 = w->alignToReference(f1); f1 = alignFromReference(rf1); } int x0 = getXForFrame(f0); int x1 = getXForFrame(f1); if (x1 <= x0) x1 = x0 + 1; std::pair<int, int> extent(x0, x1); if (extents.find(extent) == extents.end()) { y += height() / 10 + 1; extents.insert(extent); QRect vr(x0, y, x1 - x0, height() - 2 * y); rects.push_back(vr); primary = vr; //!!! for now } } QPainterPath without; without.addRoundedRect(primary, 4, 4); without.addRect(rect()); paint.setPen(Qt::NoPen); paint.setBrush(getFillWithout()); paint.drawPath(without); paint.setBrush(getFillWithin()); paint.drawRoundedRect(primary, 4, 4); foreach (QRect vr, rects) { paint.setBrush(Qt::NoBrush); paint.setPen(QPen(m_boxColour, 2)); paint.drawRoundedRect(vr, 4, 4); } paint.end(); } void Overview::mousePressEvent(QMouseEvent *e) { m_clickPos = e->pos(); sv_frame_t clickFrame = getFrameForX(m_clickPos.x()); if (clickFrame > 0) m_dragCentreFrame = clickFrame; else m_dragCentreFrame = 0; m_clickedInRange = true; for (ViewSet::iterator i = m_views.begin(); i != m_views.end(); ++i) { if (*i && (*i)->getAligningModel() == getAligningModel()) { m_dragCentreFrame = (*i)->getCentreFrame(); break; } } } void Overview::mouseReleaseEvent(QMouseEvent *e) { if (m_clickedInRange) { mouseMoveEvent(e); } m_clickedInRange = false; } void Overview::mouseMoveEvent(QMouseEvent *e) { if (!m_clickedInRange) return; int xoff = int(e->x()) - int(m_clickPos.x()); sv_frame_t frameOff = sv_frame_t(round(m_zoomLevel.pixelsToFrames(xoff))); sv_frame_t newCentreFrame = m_dragCentreFrame; if (frameOff > 0) { newCentreFrame += frameOff; } else if (newCentreFrame >= -frameOff) { newCentreFrame += frameOff; } else { newCentreFrame = 0; } if (newCentreFrame >= getModelsEndFrame()) { newCentreFrame = getModelsEndFrame(); if (newCentreFrame > 0) --newCentreFrame; } sv_frame_t pixel = sv_frame_t(round(m_zoomLevel.pixelsToFrames(1))); if (std::max(m_centreFrame, newCentreFrame) - std::min(m_centreFrame, newCentreFrame) > pixel) { sv_frame_t rf = alignToReference(newCentreFrame); #ifdef DEBUG_OVERVIEW cerr << "Overview::mouseMoveEvent: x " << e->x() << " and click x " << m_clickPos.x() << " -> frame " << newCentreFrame << " -> rf " << rf << endl; #endif if (m_followPlay == PlaybackScrollContinuous || m_followPlay == PlaybackScrollPageWithCentre) { emit centreFrameChanged(rf, true, PlaybackScrollContinuous); } else { emit centreFrameChanged(rf, true, PlaybackIgnore); } } } void Overview::mouseDoubleClickEvent(QMouseEvent *e) { sv_frame_t frame = getFrameForX(e->x()); sv_frame_t rf = 0; if (frame > 0) rf = alignToReference(frame); #ifdef DEBUG_OVERVIEW cerr << "Overview::mouseDoubleClickEvent: frame " << frame << " -> rf " << rf << endl; #endif m_clickedInRange = false; // we're not starting a drag with the second click emit centreFrameChanged(rf, true, PlaybackScrollContinuous); } void Overview::enterEvent(QEvent *) { emit contextHelpChanged(tr("Click and drag to navigate; double-click to jump")); } void Overview::leaveEvent(QEvent *) { emit contextHelpChanged(""); }