--- a/QTfrontend/qaspectratiolayout.cpp Fri Oct 28 17:41:39 2011 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,206 +0,0 @@
-/*
- * Copyright (c) 2009 Nokia Corporation.
- */
-
-#include "qaspectratiolayout.h"
-
-QAspectRatioLayout::QAspectRatioLayout(QWidget* parent, int spacing) : QLayout(parent) {
- init(spacing);
-}
-
-QAspectRatioLayout::QAspectRatioLayout(int spacing) {
- init(spacing);
-}
-
-QAspectRatioLayout::~QAspectRatioLayout() {
- delete item;
- delete lastReceivedRect;
- delete _geometry;
-}
-
-void QAspectRatioLayout::init(int spacing) {
- item = 0;
- lastReceivedRect = new QRect(0, 0, 0, 0);
- _geometry = new QRect(0, 0, 0, 0);
- setSpacing(spacing);
-}
-
-
-/* Adds item if place isn't already taken. */
-void QAspectRatioLayout::add(QLayoutItem* item) {
- if(!hasItem()) {
- replaceItem(item);
- }
-}
-
-/* Adds item if place isn't already taken. */
-void QAspectRatioLayout::addItem(QLayoutItem* item) {
- if(!hasItem()) {
- replaceItem(item);
- }
-}
-
-/* Adds widget if place isn't already taken. */
-void QAspectRatioLayout::addWidget(QWidget* widget) {
- if(!hasItem()) {
- replaceItem(new QWidgetItem(widget));
- }
-}
-
-/* Returns the item pointer and dereferences it here. */
-QLayoutItem* QAspectRatioLayout::take() {
- QLayoutItem* item = 0;
- if(this->hasItem()) {
- item = this->item;
- this->item = 0;
- }
- return item;
-}
-
-/* Returns the item pointer and dereferences it here. */
-QLayoutItem* QAspectRatioLayout::takeAt(int index) {
- if(index != 0) {
- return 0;
- }
- return this->take();
-}
-
-/* Returns the item pointer. */
-QLayoutItem* QAspectRatioLayout::itemAt(int index) const {
- if(index != 0) {
- return 0;
- }
- if(hasItem()) {
- return this->item;
- }
- return 0;
-}
-
-/* Checks if we have an item. */
-bool QAspectRatioLayout::hasItem() const {
- return this->item != 0;
-}
-
-/* Returns the count of items which can be either 0 or 1. */
-int QAspectRatioLayout::count() const {
- int returnValue = 0;
- if(hasItem()) {
- returnValue = 1;
- }
- return returnValue;
-}
-
-/* Replaces the item with the new and returns the old. */
-QLayoutItem* QAspectRatioLayout::replaceItem(QLayoutItem* item) {
- QLayoutItem* old = 0;
- if(this->hasItem()) {
- old = this->item;
- }
- this->item = item;
- setGeometry(*this->_geometry);
- return old;
-}
-
-/* Tells which way layout expands. */
-Qt::Orientations QAspectRatioLayout::expandingDirections() const {
- return Qt::Horizontal | Qt::Vertical;
-}
-
-/* Tells which size is preferred. */
-QSize QAspectRatioLayout::sizeHint() const {
- return this->item->minimumSize();
-}
-
-/* Tells minimum size. */
-QSize QAspectRatioLayout::minimumSize() const {
- return this->item->minimumSize();
-}
-
-/*
- * Tells if heightForWidth calculations is handled.
- * It isn't since width isn't enough to calculate
- * proper size.
- */
-bool QAspectRatioLayout::hasHeightForWidth() const {
- return false;
-}
-
-/* Replaces lastReceivedRect. */
-void QAspectRatioLayout::setLastReceivedRect(const QRect& rect) {
- QRect* oldRect = this->lastReceivedRect;
- this->lastReceivedRect = new QRect(rect.topLeft(), rect.size());
- delete oldRect;
-}
-
-/* Returns geometry */
-QRect QAspectRatioLayout::geometry() {
- return QRect(*this->_geometry);
-}
-
-/* Sets geometry to given size. */
-void QAspectRatioLayout::setGeometry(const QRect& rect) {
- /*
- * We check if the item is set and
- * if size is the same previously received.
- * If either is false nothing is done.
- */
- if(!this->hasItem() ||
- areRectsEqual(*this->lastReceivedRect, rect)) {
- return;
- }
- /* Replace the last received rectangle. */
- setLastReceivedRect(rect);
- /* Calculate proper size for the item relative to the received size. */
- QSize properSize = calculateProperSize(rect.size());
- /* Calculate center location in the rect and with item size. */
- QPoint properLocation = calculateCenterLocation(rect.size(), properSize);
- /* Set items geometry */
- this->item->setGeometry(QRect(properLocation, properSize));
- QRect* oldRect = this->_geometry;
- /* Cache the calculated geometry. */
- this->_geometry = new QRect(properLocation, properSize);
- delete oldRect;
- /* Super classes setGeometry */
- QLayout::setGeometry(*this->_geometry);
-}
-
-/* Takes the shortest side and creates QSize
- * with the shortest side as width and height. */
-QSize QAspectRatioLayout::calculateProperSize(QSize from) const {
- QSize properSize;
- if(from.height() * 2 < from.width()) {
- properSize.setHeight(from.height() - this->margin());
- properSize.setWidth(from.height() * 2 - this->margin());
- }
- else {
- properSize.setWidth(from.width() - this->margin());
- properSize.setHeight(from.width() / 2 - this->margin());
- }
- return properSize;
-}
-
-/* Calculates center location from the given height and width for item size. */
-QPoint QAspectRatioLayout::calculateCenterLocation(QSize from,
- QSize itemSize) const {
- QPoint centerLocation;
- if((from.width() - itemSize.width()) > 0) {
- centerLocation.setX((from.width() - itemSize.width())/2);
- }
- if((from.height() - itemSize.height()) > 0) {
- centerLocation.setY((from.height() - itemSize.height())/2);
- }
- return centerLocation;
-}
-
-/* Compares if two QRects are equal. */
-bool QAspectRatioLayout::areRectsEqual(const QRect& a,
- const QRect& b) const {
- bool result = false;
- if(a.x() == b.x() &&
- a.y() == b.y() &&
- a.height() == b.height() &&
- a.width() == b.width()) {
- result = true;
- }
- return result;
-}