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-rw-r--r--src/layout/cartesianchartlayout.cpp246
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diff --git a/src/layout/cartesianchartlayout.cpp b/src/layout/cartesianchartlayout.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc
-** All rights reserved.
-** For any questions to Digia, please use contact form at http://qt.digia.com
-**
-** This file is part of the Qt Enterprise Charts Add-on.
-**
-** $QT_BEGIN_LICENSE$
-** Licensees holding valid Qt Enterprise licenses may use this file in
-** accordance with the Qt Enterprise License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.
-**
-** If you have questions regarding the use of this file, please use
-** contact form at http://qt.digia.com
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "cartesianchartlayout_p.h"
-#include "chartpresenter_p.h"
-#include "chartaxiselement_p.h"
-#include <QDebug>
-
-QTCOMMERCIALCHART_BEGIN_NAMESPACE
-
-static const qreal maxAxisPortion = 0.4;
-
-CartesianChartLayout::CartesianChartLayout(ChartPresenter *presenter)
- : AbstractChartLayout(presenter)
-{
-}
-
-CartesianChartLayout::~CartesianChartLayout()
-{
-}
-
-QRectF CartesianChartLayout::calculateAxisGeometry(const QRectF &geometry, const QList<ChartAxisElement *> &axes) const
-{
- QSizeF left(0,0);
- QSizeF minLeft(0,0);
- QSizeF right(0,0);
- QSizeF minRight(0,0);
- QSizeF bottom(0,0);
- QSizeF minBottom(0,0);
- QSizeF top(0,0);
- QSizeF minTop(0,0);
- QSizeF labelExtents(0,0);
- int leftCount = 0;
- int rightCount = 0;
- int topCount = 0;
- int bottomCount = 0;
-
- foreach (ChartAxisElement *axis , axes) {
-
- if (!axis->isVisible())
- continue;
-
-
- QSizeF size = axis->effectiveSizeHint(Qt::PreferredSize);
- //this is used to get single thick font size
- QSizeF minSize = axis->effectiveSizeHint(Qt::MinimumSize);
-
- switch (axis->axis()->alignment()) {
- case Qt::AlignLeft:
- left.setWidth(left.width()+size.width());
- left.setHeight(qMax(left.height(),size.height()));
- minLeft.setWidth(minLeft.width()+minSize.width());
- minLeft.setHeight(qMax(minLeft.height(),minSize.height()));
- labelExtents.setHeight(qMax(size.height(), labelExtents.height()));
- leftCount++;
- break;
- case Qt::AlignRight:
- right.setWidth(right.width()+size.width());
- right.setHeight(qMax(right.height(),size.height()));
- minRight.setWidth(minRight.width()+minSize.width());
- minRight.setHeight(qMax(minRight.height(),minSize.height()));
- labelExtents.setHeight(qMax(size.height(), labelExtents.height()));
- rightCount++;
- break;
- case Qt::AlignTop:
- top.setWidth(qMax(top.width(),size.width()));
- top.setHeight(top.height()+size.height());
- minTop.setWidth(qMax(minTop.width(),minSize.width()));
- minTop.setHeight(minTop.height()+minSize.height());
- labelExtents.setWidth(qMax(size.width(), labelExtents.width()));
- topCount++;
- break;
- case Qt::AlignBottom:
- bottom.setWidth(qMax(bottom.width(), size.width()));
- bottom.setHeight(bottom.height() + size.height());
- minBottom.setWidth(qMax(minBottom.width(),minSize.width()));
- minBottom.setHeight(minBottom.height() + minSize.height());
- labelExtents.setWidth(qMax(size.width(), labelExtents.width()));
- bottomCount++;
- break;
- default:
- qWarning()<<"Axis is without alignment !";
- break;
- }
- }
-
- qreal totalVerticalAxes = leftCount + rightCount;
- qreal leftSqueezeRatio = 1.0;
- qreal rightSqueezeRatio = 1.0;
- qreal vratio = 0;
-
- if (totalVerticalAxes > 0)
- vratio = (maxAxisPortion * geometry.width()) / totalVerticalAxes;
-
- if (leftCount > 0) {
- int maxWidth = vratio * leftCount;
- if (left.width() > maxWidth) {
- leftSqueezeRatio = maxWidth / left.width();
- left.setWidth(maxWidth);
- }
- }
- if (rightCount > 0) {
- int maxWidth = vratio * rightCount;
- if (right.width() > maxWidth) {
- rightSqueezeRatio = maxWidth / right.width();
- right.setWidth(maxWidth);
- }
- }
-
- qreal totalHorizontalAxes = topCount + bottomCount;
- qreal topSqueezeRatio = 1.0;
- qreal bottomSqueezeRatio = 1.0;
- qreal hratio = 0;
-
- if (totalHorizontalAxes > 0)
- hratio = (maxAxisPortion * geometry.height()) / totalHorizontalAxes;
-
- if (topCount > 0) {
- int maxHeight = hratio * topCount;
- if (top.height() > maxHeight) {
- topSqueezeRatio = maxHeight / top.height();
- top.setHeight(maxHeight);
- }
- }
- if (bottomCount > 0) {
- int maxHeight = hratio * bottomCount;
- if (bottom.height() > maxHeight) {
- bottomSqueezeRatio = maxHeight / bottom.height();
- bottom.setHeight(maxHeight);
- }
- }
-
- qreal minHeight = qMax(minLeft.height(),minRight.height()) + 1;
- qreal minWidth = qMax(minTop.width(),minBottom.width()) + 1;
-
- // Ensure that there is enough space for first and last tick labels.
- left.setWidth(qMax(labelExtents.width(), left.width()));
- right.setWidth(qMax(labelExtents.width(), right.width()));
- top.setHeight(qMax(labelExtents.height(), top.height()));
- bottom.setHeight(qMax(labelExtents.height(), bottom.height()));
-
- QRectF chartRect = geometry.adjusted(qMax(left.width(),minWidth/2), qMax(top.height(), minHeight/2),-qMax(right.width(),minWidth/2),-qMax(bottom.height(),minHeight/2));
-
- qreal leftOffset = 0;
- qreal rightOffset = 0;
- qreal topOffset = 0;
- qreal bottomOffset = 0;
-
- foreach (ChartAxisElement *axis , axes) {
-
- if (!axis->isVisible())
- continue;
-
- QSizeF size = axis->effectiveSizeHint(Qt::PreferredSize);
-
- switch (axis->axis()->alignment()){
- case Qt::AlignLeft:{
- qreal width = size.width();
- if (leftSqueezeRatio < 1.0)
- width *= leftSqueezeRatio;
- leftOffset+=width;
- axis->setGeometry(QRect(chartRect.left()-leftOffset, geometry.top(),width, geometry.bottom()),chartRect);
- break;
- }
- case Qt::AlignRight:{
- qreal width = size.width();
- if (rightSqueezeRatio < 1.0)
- width *= rightSqueezeRatio;
- axis->setGeometry(QRect(chartRect.right()+rightOffset,geometry.top(),width,geometry.bottom()),chartRect);
- rightOffset+=width;
- break;
- }
- case Qt::AlignTop: {
- qreal height = size.height();
- if (topSqueezeRatio < 1.0)
- height *= topSqueezeRatio;
- axis->setGeometry(QRect(geometry.left(), chartRect.top() - topOffset - height, geometry.width(), height), chartRect);
- topOffset += height;
- break;
- }
- case Qt::AlignBottom:
- qreal height = size.height();
- if (bottomSqueezeRatio < 1.0)
- height *= bottomSqueezeRatio;
- axis->setGeometry(QRect(geometry.left(), chartRect.bottom() + bottomOffset, geometry.width(), height), chartRect);
- bottomOffset += height;
- break;
- }
- }
-
- return chartRect;
-}
-
-QRectF CartesianChartLayout::calculateAxisMinimum(const QRectF &minimum, const QList<ChartAxisElement *> &axes) const
-{
- QSizeF left;
- QSizeF right;
- QSizeF bottom;
- QSizeF top;
-
- foreach (ChartAxisElement *axis, axes) {
- QSizeF size = axis->effectiveSizeHint(Qt::MinimumSize);
-
- if (!axis->isVisible())
- continue;
-
- switch (axis->axis()->alignment()) {
- case Qt::AlignLeft:
- left.setWidth(left.width() + size.width());
- left.setHeight(qMax(left.height() * 2, size.height()));
- break;
- case Qt::AlignRight:
- right.setWidth(right.width() + size.width());
- right.setHeight(qMax(right.height() * 2, size.height()));
- break;
- case Qt::AlignTop:
- top.setWidth(qMax(top.width(), size.width()));
- top.setHeight(top.height() + size.height());
- break;
- case Qt::AlignBottom:
- bottom.setWidth(qMax(bottom.width(), size.width()));
- bottom.setHeight(bottom.height() + size.height());
- break;
- }
- }
- return minimum.adjusted(0, 0, left.width() + right.width() + qMax(top.width(), bottom.width()), top.height() + bottom.height() + qMax(left.height(), right.height()));
-}
-
-QTCOMMERCIALCHART_END_NAMESPACE
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