[app] Delay repaint after color scheme change
That allows settings page animation to complete smoothly. Also switched BooksPageWidget from QTimer to QBasicTimer for better efficiency.
This commit is contained in:
Slava Monich
parent
a4a868c1c8
commit
ba04787927
2 changed files with 90 additions and 40 deletions
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@ -48,6 +48,7 @@
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#include <QPainter>
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static const QString IMAGE_URL("image://%1/%2");
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static const int REPAINT_DELAY_MSEC = 250;
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// ==========================================================================
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// BooksPageWidget::Data
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@ -533,7 +534,6 @@ BooksPageWidget::BooksPageWidget(QQuickItem* aParent) :
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iSettings(BooksSettings::sharedInstance()),
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iTaskQueue(BooksTaskQueue::defaultQueue()),
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iTextStyle(BooksTextStyle::defaults()),
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iResizeTimer(new QTimer(this)),
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iModel(NULL),
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iResetTask(NULL),
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iRenderTask(NULL),
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@ -551,9 +551,6 @@ BooksPageWidget::BooksPageWidget(QQuickItem* aParent) :
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{
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connect(iSettings.data(), SIGNAL(colorSchemeChanged()), SLOT(onColorsChanged()));
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setFlag(ItemHasContents, true);
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iResizeTimer->setSingleShot(true);
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iResizeTimer->setInterval(0);
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connect(iResizeTimer, SIGNAL(timeout()), SLOT(onResizeTimeout()));
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connect(this, SIGNAL(widthChanged()), SLOT(onWidthChanged()));
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connect(this, SIGNAL(heightChanged()), SLOT(onHeightChanged()));
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}
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@ -650,7 +647,7 @@ BooksPageWidget::onColorsChanged()
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{
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HDEBUG(iPage);
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HASSERT(sender() == iSettings);
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scheduleRepaint();
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scheduleRepaintDelayUpdate();
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}
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void
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@ -797,7 +794,7 @@ BooksPageWidget::resetView()
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}
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}
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if (!iEmpty) {
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update();
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updateNow();
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}
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}
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@ -816,17 +813,39 @@ BooksPageWidget::scheduleRepaint()
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{
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BooksLoadingSignalBlocker block(this);
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cancelRepaint();
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const int w = width();
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const int h = height();
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if (w > 0 && h > 0 && !iData.isNull() && !iData->iView.isNull()) {
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const shared_ptr<BooksTextView> view(iData->iView);
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if (width() > 0 && height() > 0) {
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if (!iData.isNull() && !iData->iView.isNull()) {
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(iRenderTask = new RenderTask(iTaskQueue->pool(), thread(),
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iData, iSettings->colorScheme()))->
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submit(this, SLOT(onRenderTaskDone()));
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iData, iSettings->colorScheme()))->submit(this,
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SLOT(onRenderTaskDone()));
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} else {
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update();
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updateNow();
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}
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}
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}
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void
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BooksPageWidget::scheduleRepaintDelayUpdate()
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{
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BooksLoadingSignalBlocker block(this);
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cancelRepaint();
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if (width() > 0 && height() > 0) {
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if (!iData.isNull() && !iData->iView.isNull()) {
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(iRenderTask = new RenderTask(iTaskQueue->pool(), thread(),
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iData, iSettings->colorScheme()))->submit(this,
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SLOT(onRenderTaskDoneDelayUpdate()));
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} else if (!iDelayUpdateTimer.isActive()) {
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iDelayUpdateTimer.start(REPAINT_DELAY_MSEC, this);
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}
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}
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}
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void
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BooksPageWidget::updateNow()
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{
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iDelayUpdateTimer.stop();
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update();
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}
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void
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BooksPageWidget::onResetTaskDone()
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@ -841,14 +860,47 @@ BooksPageWidget::onResetTaskDone()
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}
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void
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BooksPageWidget::onRenderTaskDone()
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BooksPageWidget::renderTaskDone()
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{
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BooksLoadingSignalBlocker block(this);
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HASSERT(sender() == iRenderTask);
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iImage = iRenderTask->iImage;
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iRenderTask->release(this);
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iRenderTask = NULL;
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update();
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}
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void
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BooksPageWidget::onRenderTaskDone()
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{
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BooksLoadingSignalBlocker block(this);
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renderTaskDone();
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updateNow();
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}
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void
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BooksPageWidget::onRenderTaskDoneDelayUpdate()
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{
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BooksLoadingSignalBlocker block(this);
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renderTaskDone();
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if (!iDelayUpdateTimer.isActive()) {
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iDelayUpdateTimer.start(REPAINT_DELAY_MSEC, this);
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}
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}
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void
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BooksPageWidget::timerEvent(
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QTimerEvent* aEvent)
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{
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const int timerId = aEvent->timerId();
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if (timerId == iResizeTimer.timerId()) {
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// This can only happen if only width or height has changed.
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// Normally, width change is followed by height change and
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// the size is updated from the setHeight() method
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updateSize();
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} else if (timerId == iDelayUpdateTimer.timerId()) {
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updateNow();
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} else {
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return QQuickPaintedItem::timerEvent(aEvent);
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}
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}
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void
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@ -882,7 +934,7 @@ BooksPageWidget::onClearSelectionTaskDone()
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if (task->iImageUpdated) {
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iImage = task->iImage;
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update();
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updateNow();
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}
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task->release(this);
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@ -913,7 +965,7 @@ BooksPageWidget::onStartSelectionTaskDone()
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if (emitSelectionEmpty) {
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Q_EMIT selectionEmptyChanged();
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}
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update();
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updateNow();
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}
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task->release(this);
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@ -933,7 +985,7 @@ BooksPageWidget::onExtendSelectionTaskDone()
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HDEBUG("selection" << iSelectionEmpty);
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Q_EMIT selectionEmptyChanged();
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}
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update();
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updateNow();
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}
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task->release(this);
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@ -1042,6 +1094,7 @@ void
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BooksPageWidget::updateSize()
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{
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HDEBUG("page" << iPage << QSize(width(), height()));
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iResizeTimer.stop();
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iImage = QImage();
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resetView();
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}
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@ -1051,35 +1104,25 @@ BooksPageWidget::onWidthChanged()
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{
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HVERBOSE((int)width());
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// Width change will probably be followed by height change
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iResizeTimer->start();
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iResizeTimer.start(0, this);
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iImage = QImage();
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update();
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updateNow();
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}
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void
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BooksPageWidget::onHeightChanged()
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{
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HVERBOSE((int)height());
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if (iResizeTimer->isActive()) {
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if (iResizeTimer.isActive()) { // Started by onWidthChanged()
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// Height is usually changed after width, repaint right away
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iResizeTimer->stop();
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updateSize();
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} else {
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iResizeTimer->start();
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iResizeTimer.start(0, this);
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iImage = QImage();
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update();
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updateNow();
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}
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}
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void
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BooksPageWidget::onResizeTimeout()
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{
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// This can only happen if only width or height has changed. Normally,
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// width change is followed by height change and view is reset from the
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// setHeight() method
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updateSize();
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}
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void
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BooksPageWidget::handleLongPress(
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int aX,
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@ -45,7 +45,7 @@
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#include "ZLTextStyle.h"
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#include <QQuickPaintedItem>
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#include <QTimer>
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#include <QBasicTimer>
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#include <QList>
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class BooksPageWidget: public QQuickPaintedItem, private BooksLoadingProperty
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@ -129,12 +129,12 @@ Q_SIGNALS:
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private Q_SLOTS:
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void onWidthChanged();
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void onHeightChanged();
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void onResizeTimeout();
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void onBookModelDestroyed();
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void onTextStyleChanged();
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void onColorsChanged();
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void onResetTaskDone();
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void onRenderTaskDone();
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void onRenderTaskDoneDelayUpdate();
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void onClearSelectionTaskDone();
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void onStartSelectionTaskDone();
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void onExtendSelectionTaskDone();
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@ -142,13 +142,19 @@ private Q_SLOTS:
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void onLongPressTaskDone();
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void onFootnoteTaskDone();
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private:
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protected:
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void timerEvent(QTimerEvent*) Q_DECL_OVERRIDE;
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void paint(QPainter*) Q_DECL_OVERRIDE;
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private:
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void updateSize();
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void resetView();
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void releaseExtendSelectionTasks();
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void scheduleRepaint();
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void scheduleRepaintDelayUpdate();
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void cancelRepaint();
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void renderTaskDone();
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void updateNow();
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private:
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class ResetTask;
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@ -163,7 +169,8 @@ private:
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shared_ptr<BooksTaskQueue> iTaskQueue;
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shared_ptr<ZLTextStyle> iTextStyle;
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BooksPos iBookPos;
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QTimer* iResizeTimer;
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QBasicTimer iResizeTimer;
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QBasicTimer iDelayUpdateTimer;
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BooksBookModel* iModel;
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BooksMargins iMargins;
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shared_ptr<Data> iData;
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