--- a/browsercore/appfw/Common/VisualFlowLite.cpp Fri Jun 11 16:23:26 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,498 +0,0 @@
-/*
-* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description:
-*
-*/
-
-
-// INCLUDE FILES
-#include "VisualFlowLite.h"
-
-#include <QTimer>
-#include <QPainter>
-#include <QKeyEvent>
-#include <QMouseEvent>
-
-#include <QDebug>
-
-
-// CONSTANTS
-const int KVisualFlowViewOffsetX = 2;
-
-//Animation related factors
-const int KResizeFactorIncr = 20;
-const int KAnimFactorInc = 25;
-const int KFastScrollAnimFactorInc = 40;
-const int KMaxAnimFactor = 100;
-const int KMinAnimFactor = 0;
-
-const int KRepaintTimerCb = 20;
-const int KCenterThumbnailWidthPercent = 50;
-const int KCenterThumbnailHeightPercent = 90;
-const int KSideThumbnailWidthPercent = 25;
-const int KSideThumbnailHeightPercent = 70;
-
-#define KCenterImageBorderColor Qt::red
-#define KSideImageBorderColor Qt::black
-
-
-namespace WRT {
-const int KScrollTimeout = 200;
-
-
-VisualFlowLite::VisualFlowLite(QWidget* parent) : FlowInterface(parent),
- m_resizeFactor (KMinAnimFactor),
- m_placeHolderResizeFactor(KMinAnimFactor),
- m_centerPageIndex(-1),
- m_scalingAllowed(false)
-{
- m_paintState = paintStateNormal;
- m_scrollTimer = NULL;
-}
-
-void VisualFlowLite::init()
-{
- m_repaintTimer = new QTimer;
- connect(m_repaintTimer, SIGNAL(timeout()), this, SLOT(calcRepaintRect()));
- resize(parentWidget()->rect().size());
-
- m_repaintTimer->start(KRepaintTimerCb);
- // FIXME: Cursor undef for symbian?
-#if !defined(Q_OS_SYMBIAN)
- setCursor(Qt::ArrowCursor);
-#endif
- setFocusPolicy(Qt::WheelFocus);
- setFocus(Qt::OtherFocusReason);
-}
-
-void VisualFlowLite::addSlide(const QImage& image)
-{
- m_imageList.append(new QImage(image));
-}
-
-void VisualFlowLite::clear()
-{
- if (m_repaintTimer->isActive()) {
- m_repaintTimer->stop();
- }
- while (!m_imageList.isEmpty())
- delete m_imageList.takeFirst();
- if (m_scrollTimer) {
- m_scrollTimer->stop();
- }
-
- m_paintState = paintStateNormal;
- m_direction = 0;
- m_repaintTimer->start(KRepaintTimerCb);
-}
-
-int VisualFlowLite::slideCount() const
-{
- return m_imageList.count();
-}
-
-QImage VisualFlowLite::slide(int index) const
-{
- const QImage* i = 0;
- if((index >= 0) && (index < m_imageList.count()))
- i = m_imageList.at(index);
- return i ? QImage(*i) : QImage();
-}
-
-void VisualFlowLite::setCenterIndex(int i)
-{
- setCurrentIndex(i);
-}
-
-int VisualFlowLite::centerIndex() const
-{
- return m_centerPageIndex;
-}
-
-bool VisualFlowLite::slideAnimationOngoing() const
-{
- return m_repaintTimer->isActive();
-}
-
-void VisualFlowLite::setCenterThumbnail(int i)
-{
- if(m_centerPageIndex + 1 == i) {
- showNext();
- }
- else if(m_centerPageIndex - 1 == i) {
- showPrevious();
- }
- else {
- setCurrentIndex(i);
- calculateLayout();
- update();
- }
-
-}
-
-void VisualFlowLite::setCurrentIndex(int i)
-{
- m_currentIndex = i;
- m_centerPageIndex = i;
-}
-
-VisualFlowLite::~VisualFlowLite()
-{
- if (m_repaintTimer->isActive()) {
- m_repaintTimer->stop();
- }
- delete m_repaintTimer;
- while (!m_imageList.isEmpty())
- delete m_imageList.takeFirst();
- if (m_scrollTimer) {
- m_scrollTimer->stop();
- delete m_scrollTimer;
- }
-}
-
-bool VisualFlowLite::calcRepaintRect()
-{
- m_repaintTimer->stop();
- disconnect(m_repaintTimer, SIGNAL(timeout()), this, SLOT(calcRepaintRect()));
- connect(m_repaintTimer, SIGNAL(timeout()), this, SLOT(animatePlaceHolderPosition()));
- if (m_resizeFactor == KMaxAnimFactor) {
- m_repaintRect.setRect(rect().x(), rect().y(), rect().width(), rect().height());
- update();
- return false;
- }
- m_repaintRect.setRect(rect().x(), rect().y(), rect().width() * m_resizeFactor/100, rect().height() * m_resizeFactor/100);
- m_resizeFactor += KResizeFactorIncr;
- update();
- return true;
-}
-
-void VisualFlowLite::keyPressEvent(QKeyEvent* event)
-{
- switch (event->key()) {
- case Qt::Key_Left:
- showPrevious();
- break;
- case Qt::Key_Right:
- showNext();
- break;
- case Qt::Key_Escape:
- emit cancel();
- break;
- case Qt::Key_Enter:
- case Qt::Key_Return:
- case Qt::Key_Select:
- emit ok(m_currentIndex);
- break;
- }
-}
-
-void VisualFlowLite::mousePressEvent(QMouseEvent* event)
-{
- m_lastMoveEventPos = event->pos();
- m_scrollTimer = new QTimer;
- connect(m_scrollTimer, SIGNAL(timeout()), this, SLOT(scroll()));
- m_scrollTimer->start(KScrollTimeout);
- scroll();
-}
-
-void VisualFlowLite::mouseMoveEvent(QMouseEvent* event)
-{
- m_lastMoveEventPos = event->pos();
-}
-
-void VisualFlowLite::mouseReleaseEvent(QMouseEvent* event)
-{
- m_scrollTimer->stop();
- delete m_scrollTimer;
- m_scrollTimer = NULL;
- if (slideAnimationOngoing()) {
-// qDebug() << "vfl:mouseReleaseEvent slideanimation running, ignoring click";
- return;
- }
- if (event->x() > m_centerPlaceHolderRect.left() && event->x() < m_centerPlaceHolderRect.right()) {
- emit ok(centerIndex());
- }
-}
-
-void VisualFlowLite::scroll()
-{
- if (m_lastMoveEventPos.x() < m_leftPlaceHolderRect.right())
- showPrevious();
- else if (m_lastMoveEventPos.x() > m_rightPlaceHolderRect.left())
- showNext();
-}
-
-void VisualFlowLite::paintEvent(QPaintEvent* event)
-{
- if (m_paintState == paintStateNormal) {
- paintNormalState(event);
- }
- else if (m_paintState == paintStateInTransition) {
- paintInTransition(event);
- }
-}
-
-void VisualFlowLite::paintNormalState(QPaintEvent* event)
-{
- int imageCount = m_imageList.count();
- const QImage* centerEntry = (m_centerPageIndex >= 0)&&(imageCount>0) ? (m_imageList.at(m_centerPageIndex)) : NULL;
- const QImage* leftEntry = (m_centerPageIndex - 1 >= 0)&&(imageCount>0) ? (m_imageList.at(m_centerPageIndex - 1)) : NULL;
- const QImage* rightEntry = (m_centerPageIndex + 1 < imageCount) ? (m_imageList.at(m_centerPageIndex + 1)) : NULL;
-
- QPainter painter(this);
- painter.save();
- painter.setBrush(Qt::white);
- painter.drawRect(rect());
- painter.setBrush(Qt::NoBrush);
- if (leftEntry) {
- //painter.drawImage(m_leftPlaceHolderRect.topLeft(), *leftEntry, QRect(QPoint(0, 0), m_leftPlaceHolderRect.size()));
- paintImage(&painter, m_leftPlaceHolderRect, *leftEntry);
-
- painter.setPen(KSideImageBorderColor);
- painter.drawRect(m_leftPlaceHolderRect);
- }
- if (rightEntry) {
- //painter.drawImage(m_rightPlaceHolderRect.topLeft(), *rightEntry, QRect(QPoint(0, 0), m_rightPlaceHolderRect.size()));
- paintImage(&painter, m_rightPlaceHolderRect, *rightEntry);
-
- painter.setPen(KSideImageBorderColor);
- painter.drawRect(m_rightPlaceHolderRect);
- }
- if (centerEntry ) {
- //painter.drawImage(m_centerPlaceHolderRect.topLeft(), *centerEntry, QRect(QPoint(0, 0), m_centerPlaceHolderRect.size()));
- paintImage(&painter, m_centerPlaceHolderRect, *centerEntry);
- }
- painter.setPen(KCenterImageBorderColor);
- painter.drawRect(m_centerPlaceHolderRect);
- painter.restore();
-}
-
-void VisualFlowLite::resizeEvent(QResizeEvent* event)
-{
- calculateLayout();
- update();
-}
-
-void VisualFlowLite::calculateLayout()
-{
- QSize screenSize = rect().size();
- //QSize screenSize = sizeHint();
-
- QSize viewSize((screenSize.width() - 2 * KVisualFlowViewOffsetX), screenSize.height());
- int centerImageWidth(viewSize.width() * KCenterThumbnailWidthPercent / 100);
- int centerImageHeight(viewSize.height() * KCenterThumbnailHeightPercent/100);
- QSize centerImageSize(centerImageWidth, centerImageHeight);
-
- int sideImageWidth(viewSize.width() * KSideThumbnailWidthPercent/100);
- int sideImageHeight(viewSize.height() * KSideThumbnailHeightPercent/100);
- QSize sideImageSize(sideImageWidth, sideImageHeight);
-
- int centerImageX(KVisualFlowViewOffsetX + sideImageWidth);
- int centerImageY(viewSize.height() * (100 - KCenterThumbnailHeightPercent) / (2 * 100));
- QPoint centerImageOrigin(centerImageX, centerImageY);
-
- m_centerPlaceHolderRect.setRect(centerImageOrigin.x(), centerImageOrigin.y(), centerImageSize.width(), centerImageSize.height());
- int sideImageY(viewSize.height() * (100 - KSideThumbnailHeightPercent) / (2 * 100));
- QPoint leftThumbnailOrigin(KVisualFlowViewOffsetX, sideImageY );
- QPoint rightThumbnailOrigin((int)(KVisualFlowViewOffsetX + sideImageWidth + centerImageWidth), sideImageY );
-
- m_leftPlaceHolderRect.setRect(leftThumbnailOrigin.x(), leftThumbnailOrigin.y(), sideImageSize.width(), sideImageSize.height());
- m_rightPlaceHolderRect.setRect(rightThumbnailOrigin.x(), rightThumbnailOrigin.y(), sideImageSize.width(), sideImageSize.height());
-}
-
-bool VisualFlowLite::animatePlaceHolderPosition()
-{
- m_repaintTimer->stop();
- if (m_placeHolderResizeFactor >= KMaxAnimFactor) {
- //Restore old values and end AO
- if (m_direction == 1) {
- m_centerPageIndex++;
- }
- if (m_direction == -1) {
- m_centerPageIndex--;
- }
- m_placeHolderResizeFactor = 0;
- m_direction = 0;
- m_paintState = paintStateNormal;
- update();
- emit centerIndexChanged(m_centerPageIndex);
- return false;
- }
- update();
- return true;
-}
-
-void VisualFlowLite::paintInTransition(QPaintEvent* event)
-{
- QRect rects[4];
- int dw = 0;
- int dh = 0;
- int dx = 0;
- //left movement
- if (m_direction == -1) {
- QPoint pt(m_leftPlaceHolderRect.x(), m_leftPlaceHolderRect.y() + m_leftPlaceHolderRect.height() / 2);
- dw = m_leftPlaceHolderRect.width() * m_placeHolderResizeFactor / 200;
- dh = m_leftPlaceHolderRect.height() * m_placeHolderResizeFactor / 200;
- rects[0].setRect(pt.x(), pt.y() - dh, 2 * dw, 2 * dh);
-
- dx = (m_centerPlaceHolderRect.x() - m_leftPlaceHolderRect.x()) * m_placeHolderResizeFactor / 100;
- dw = (m_centerPlaceHolderRect.width() - m_leftPlaceHolderRect.width()) * m_placeHolderResizeFactor / 200;
- dh = (m_centerPlaceHolderRect.height() - m_leftPlaceHolderRect.height()) * m_placeHolderResizeFactor / 200;
- rects[1].setRect(m_leftPlaceHolderRect.x() + dx, m_leftPlaceHolderRect.y() - dh, m_leftPlaceHolderRect.width() + 2 * dw, m_leftPlaceHolderRect.height() + 2 * dh);
-
- dx = (m_rightPlaceHolderRect.x() - m_centerPlaceHolderRect.x()) * m_placeHolderResizeFactor / 100;
- dw = (m_centerPlaceHolderRect.width() - m_rightPlaceHolderRect.width()) * m_placeHolderResizeFactor / 200;
- dh = (m_centerPlaceHolderRect.height() - m_rightPlaceHolderRect.height()) * m_placeHolderResizeFactor / 200;
- rects[2].setRect(m_centerPlaceHolderRect.x() + dx, m_centerPlaceHolderRect.y() + dh, m_centerPlaceHolderRect.width() - 2 * dw, m_centerPlaceHolderRect.height() - 2 * dh);
-
- dw = (m_rightPlaceHolderRect.width()) * m_placeHolderResizeFactor / 200;
- dh = (m_rightPlaceHolderRect.height()) * m_placeHolderResizeFactor / 200;
- rects[3].setRect(m_rightPlaceHolderRect.x() + 3 * dw, m_rightPlaceHolderRect.y() + dh, m_rightPlaceHolderRect.width() - 2 * dw, m_rightPlaceHolderRect.height() - 2 * dh);
-
- const QImage* item = 0;
- QPainter painter(this);
- painter.setPen(Qt::NoPen);
- QBrush whiteBrush(Qt::white, Qt::SolidPattern);
- painter.setBrush(whiteBrush);
- painter.drawRect(rect());
-
- for (int i = 0; i < 4; i++) {
- item = (m_centerPageIndex - 2 + i >= 0 && m_centerPageIndex - 2 + i < m_imageList.count()) ?
- m_imageList.at(m_centerPageIndex - 2 + i) : NULL;
- if (item) {
- QRect intersectRect(rect());
- intersectRect = intersectRect.intersected(rects[i]);
- if (!intersectRect.isEmpty()) {
- //painter.drawImage(intersectRect.topLeft(), *item, QRect(0, 0, rects[i].width(), rects[i].height()));
- paintImage(&painter, intersectRect, *item);
-
- QPen sideImagePen(KSideImageBorderColor);
- sideImagePen.setStyle(Qt::SolidLine);
- painter.setPen(sideImagePen);
- painter.setBrush(Qt::NoBrush);
- painter.drawRect(intersectRect);
- }
- }
- }
- }
-
- if (m_direction == 1) {
- dw = m_leftPlaceHolderRect.width() * m_placeHolderResizeFactor / 200;
- dh = m_leftPlaceHolderRect.height() * m_placeHolderResizeFactor / 200;
- rects[0].setRect(m_leftPlaceHolderRect.x() + 3 * dw, m_leftPlaceHolderRect.y() + dh, m_leftPlaceHolderRect.width() - 2 * dw, m_leftPlaceHolderRect.height() - 2 * dh);
-
- dx = (m_centerPlaceHolderRect.x() - m_leftPlaceHolderRect.x()) * m_placeHolderResizeFactor / 100;
- dw = (m_centerPlaceHolderRect.width() - m_leftPlaceHolderRect.width()) * m_placeHolderResizeFactor / 200;
- dh = (m_centerPlaceHolderRect.height() - m_leftPlaceHolderRect.height()) * m_placeHolderResizeFactor / 200;
- rects[1].setRect(m_centerPlaceHolderRect.x() - dx, m_centerPlaceHolderRect.y() + dh, m_centerPlaceHolderRect.width() - 2 * dw, m_centerPlaceHolderRect.height() - 2 * dh);
-
- dx = (m_rightPlaceHolderRect.x() - m_centerPlaceHolderRect.x()) * m_placeHolderResizeFactor / 100;
- dw = (m_centerPlaceHolderRect.width() - m_rightPlaceHolderRect.width()) * m_placeHolderResizeFactor / 200;
- dh = (m_centerPlaceHolderRect.height() - m_rightPlaceHolderRect.height()) * m_placeHolderResizeFactor / 200;
- rects[2].setRect(m_rightPlaceHolderRect.x() - dx, m_rightPlaceHolderRect.y() -dh, m_rightPlaceHolderRect.width() + 2 * dw, m_rightPlaceHolderRect.height() + 2 * dh);
-
- QPoint pt(m_rightPlaceHolderRect.x() + m_rightPlaceHolderRect.width(), m_rightPlaceHolderRect.y() + m_rightPlaceHolderRect.height() / 2);
- dw = (m_rightPlaceHolderRect.width()) * m_placeHolderResizeFactor / 200;
- dh = (m_rightPlaceHolderRect.height()) * m_placeHolderResizeFactor / 200;
- rects[3].setRect(pt.x() - 2 * dw, pt.y() - dh, pt.x(), pt.y() + 2 * dh);
-
- const QImage* item = 0;
- QPainter painter(this);
- painter.setPen(Qt::NoPen);
- QBrush whiteBrush(Qt::white, Qt::SolidPattern);
- painter.setBrush(whiteBrush);
- painter.drawRect(rect());
-
- for (int i = 0; i < 4; i++) {
- item = (m_centerPageIndex - 1 + i >= 0 && m_centerPageIndex - 1 + i < m_imageList.count()) ?
- m_imageList.at(m_centerPageIndex - 1 + i) : NULL;
- if (item) {
- QRect intersectRect(rect());
- intersectRect = intersectRect.intersected(rects[i]);
- if (!intersectRect.isEmpty()) {
- //painter.drawImage(intersectRect.topLeft(), *item, QRect(0, 0, rects[i].width(), rects[i].height()));
- paintImage(&painter, intersectRect, *item);
-
- QPen sideImagePen(KSideImageBorderColor);
- sideImagePen.setStyle(Qt::SolidLine);
- painter.setPen(sideImagePen);
- painter.setBrush(Qt::NoBrush);
- painter.drawRect(intersectRect);
- }
- }
- }
- }
- if (!m_fastScroll) {
- m_placeHolderResizeFactor += KAnimFactorInc;
- }
- else {
- m_placeHolderResizeFactor += KFastScrollAnimFactorInc;
- }
- m_repaintTimer->start(KRepaintTimerCb);
-}
-
-void VisualFlowLite::showPrevious()
-{
- if (m_centerPageIndex > 0) {
- if (m_repaintTimer->isActive()) {
- m_repaintTimer->stop();
- m_resizeFactor = KMaxAnimFactor;
- }
- m_paintState = paintStateInTransition;
- m_direction = -1;
- m_repaintTimer->start(KRepaintTimerCb);
- }
-}
-
-void VisualFlowLite::showNext()
-{
- int count = m_imageList.count();
- if (m_centerPageIndex < ( count -1 )) {
- if (m_repaintTimer->isActive()) {
- m_repaintTimer->stop();
- m_resizeFactor = KMaxAnimFactor;
- }
- m_paintState = paintStateInTransition;
- m_direction = 1;
- m_repaintTimer->start(KRepaintTimerCb);
- }
-}
-
-void VisualFlowLite::paintImage(QPainter* painter, QRect rect, QImage image)
-{
- // scaling images up does not look good so we only scale down if image is too big
- bool shouldScale(false);
- if (m_scalingAllowed)
- shouldScale = (image.height() > rect.height() || image.width() > rect.width()); // scale down needed
-
-
- QImage img = (shouldScale) ? image.scaled(rect.width(), rect.height(), Qt::KeepAspectRatio) : image;
-
- int originX = rect.topLeft().x();
- int originY = rect.topLeft().y();
- // center the image if needed
- if (rect.width() > img.width())
- originX += (rect.width() - img.width()) / 2;
- if (rect.height() > img.height())
- originY += (rect.height() - img.height()) / 2;
-
- painter->drawImage(QPoint(originX, originY), img, QRect(QPoint(0, 0), rect.size()));
-}
-
-QRect VisualFlowLite::centralRect() const
-{
- return QRect();
-}
-
-}