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qlegend.cpp
533 lines | 13.2 KiB | text/x-c | CppLexer
Jani Honkonen
Add license headers
r794 /****************************************************************************
Michal Klocek
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r950 **
** Copyright (C) 2012 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 Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial 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
** $QT_END_LICENSE$
**
****************************************************************************/
Jani Honkonen
Add license headers
r794
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framework for legend
r524 #include "qlegend.h"
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r950 #include "qlegend_p.h"
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r988 #include "qabstractseries.h"
#include "qabstractseries_p.h"
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r950 #include "qchart_p.h"
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r1534 #include "legendlayout_p.h"
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r547 #include "legendmarker_p.h"
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r565 #include "qxyseries.h"
#include "qlineseries.h"
#include "qareaseries.h"
#include "qscatterseries.h"
#include "qsplineseries.h"
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renamed barseries files to abstractbarseries
r1586 #include "qabstractbarseries.h"
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r565 #include "qstackedbarseries.h"
#include "qpercentbarseries.h"
#include "qbarset.h"
#include "qpieseries.h"
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r1009 #include "qpieseries_p.h"
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more intelligent legend. fixed compiler warning in bar.cpp
r565 #include "qpieslice.h"
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r626 #include "chartpresenter_p.h"
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r529 #include <QPainter>
#include <QPen>
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r855 #include <QTimer>
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r1534 #include <QGraphicsLayout>
sauimone
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r547 #include <QGraphicsSceneEvent>
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First version of legend. Simple markers and serie names. Using drilldown as example for now.
r529
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Separated legend marker to private header. Added signals for left and right mouse click
r547 QTCOMMERCIALCHART_BEGIN_NAMESPACE
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First version of legend. Simple markers and serie names. Using drilldown as example for now.
r529
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legend documentation fix. detaching and attaching the legend
r728 /*!
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Documentation fixes....
r995 \class QLegend
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r1501 \brief Legend object
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Documentation fixes....
r995 \mainclass
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r728
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Documentation fixes....
r995 QLegend is a graphical object, whics displays legend of the chart. Legend state is updated by QChart, when
series have been changed. By default, legend is drawn by QChart, but user can set a new parent to legend and
handle the drawing manually.
User isn't supposed to create or delete legend objects, but can reference it via QChart class.
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r728
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r995 \image examples_percentbarchart_legend.png
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r728
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r995 \sa QChart
*/
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r1452 /*!
\qmlclass Legend QLegend
\brief Legend is part of QtCommercial Chart QML API.
Legend is a graphical object, whics displays legend of the chart. Legend state is updated by ChartView, when
Tero Ahola
Documentation of QML ChartView, Axis and Legend
r1475 series have been changed. Legend is used via ChartView class. For example:
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r1452 \code
ChartView {
legend.visible: true
legend.alignment: Qt.AlignBottom
// Add a few series...
}
\endcode
\image examples_percentbarchart_legend.png
*/
/*!
\property QLegend::alignment
\brief The alignment of the legend.
Legend paints on the defined position in the chart. The following alignments are supported:
Qt::AlignTop, Qt::AlignBottom, Qt::AlignLeft, Qt::AlignRight. If you set more than one flag the result is undefined.
*/
/*!
\qmlproperty Qt.Alignment Legend::alignment
\brief The alignment of the legend.
Legend paints on the defined position in the chart. The following alignments are supported:
Qt.AlignTop, Qt.AlignBottom, Qt.AlignLeft, Qt.AlignRight. If you set more than one flag the result is undefined.
*/
/*!
\property QLegend::backgroundVisible
Whether the legend background is visible or not.
*/
/*!
\qmlproperty bool Legend::backgroundVisible
Whether the legend background is visible or not.
*/
/*!
\property QLegend::color
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r1472 The color of the legend, i.e. the background (brush) color. Note that if you change the color
of the legend, the style of the legend brush is set to Qt::SolidPattern.
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r1452 */
/*!
\qmlproperty color Legend::color
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r1472 The color of the legend, i.e. the background (brush) color.
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r1452 */
/*!
\property QLegend::borderColor
The border color of the legend, i.e. the line color.
*/
/*!
\qmlproperty color Legend::borderColor
The border color of the legend, i.e. the line color.
*/
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r728
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legend font fix
r1522 /*!
\property QLegend::font
The font of markers used by legend
*/
/*!
\qmlproperty color Legend::font
The font of markers used by legend
*/
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Documented QLegend label properties
r1529 /*!
\property QLegend::labelColor
The color of brush used to draw labels.
*/
/*!
\qmlproperty color QLegend::labelColor
The color of brush used to draw labels.
*/
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r1452 /*!
\fn void QLegend::backgroundVisibleChanged(bool)
The visibility of the legend background changed to \a visible.
*/
/*!
\fn void QLegend::colorChanged(QColor)
The color of the legend background changed to \a color.
*/
/*!
\fn void QLegend::borderColorChanged(QColor)
The border color of the legend background changed to \a color.
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r1357 */
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r724
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r1522 /*!
\fn void QLegend::fontChanged(QFont)
The font of markers of the legend changed to \a font.
*/
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Documented QLegend label properties
r1529 /*!
\fn void QLegend::labelColorChanged(QColor color)
This signal is emitted when the color of brush used to draw labels has changed to \a color.
*/
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r724 /*!
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r950 Constructs the legend object and sets the parent to \a parent
*/
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Refactor qledgend handling...
r855
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Fixes previous commit
r791 QLegend::QLegend(QChart *chart):QGraphicsWidget(chart),
sauimone
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r1300 d_ptr(new QLegendPrivate(chart->d_ptr->m_presenter,chart,this))
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minor code review fixes
r762 {
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r626 setZValue(ChartPresenter::LegendZValue);
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Refactor qledgend handling...
r855 setFlags(QGraphicsItem::ItemClipsChildrenToShape);
Michal Klocek
Fixes normalize signal socekt issue
r1033 QObject::connect(chart->d_ptr->m_dataset,SIGNAL(seriesAdded(QAbstractSeries*,Domain*)),d_ptr.data(),SLOT(handleSeriesAdded(QAbstractSeries*,Domain*)));
QObject::connect(chart->d_ptr->m_dataset,SIGNAL(seriesRemoved(QAbstractSeries*)),d_ptr.data(),SLOT(handleSeriesRemoved(QAbstractSeries*)));
sauimone
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r1263 QObject::connect(chart->d_ptr->m_dataset,SIGNAL(seriesUpdated(QAbstractSeries*)),d_ptr.data(),SLOT(handleSeriesUpdated(QAbstractSeries*)));
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Refactors layout managment...
r1534 setLayout(d_ptr->m_layout);
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r950 }
Tero Ahola
No errors anymore when generating docs, wohoo! For now.
r1002 /*!
Destroys the legend object. Legend is always owned by a QChart, so an application should never call this.
*/
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r950 QLegend::~QLegend()
{
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r524 }
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r724 /*!
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r1501 \internal
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r950 */
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r524 void QLegend::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
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r950 Q_UNUSED(option)
Q_UNUSED(widget)
if(!d_ptr->m_backgroundVisible) return;
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Squashed bunch of warnings
r611
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r724 painter->setOpacity(opacity());
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r950 painter->setPen(d_ptr->m_pen);
painter->setBrush(d_ptr->m_brush);
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added roundness to legend background
r1453 painter->drawRoundRect(rect(),d_ptr->roundness(rect().width()),d_ptr->roundness(rect().height()));
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framework for legend
r524
}
Michal Klocek
Refactors layout managment...
r1534
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 Sets the \a brush of legend. Brush affects the background of legend.
*/
Tero Ahola
Code review: Fixed simple issues in Bar and Legend
r737 void QLegend::setBrush(const QBrush &brush)
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r540 {
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r950 if (d_ptr->m_brush != brush) {
d_ptr->m_brush = brush;
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r645 update();
Tero Ahola
Fixed signaling in QLegend
r1543 emit colorChanged(brush.color());
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r645 }
}
sauimone
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r724 /*!
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r950 Returns the brush used by legend.
*/
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r645 QBrush QLegend::brush() const
{
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r950 return d_ptr->m_brush;
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r645 }
Tero Ahola
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r1452 void QLegend::setColor(QColor color)
{
QBrush b = d_ptr->m_brush;
Tero Ahola
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r1472 if (b.style() != Qt::SolidPattern || b.color() != color) {
b.setStyle(Qt::SolidPattern);
Tero Ahola
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r1452 b.setColor(color);
setBrush(b);
}
}
QColor QLegend::color()
{
return d_ptr->m_brush.color();
}
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
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r950 Sets the \a pen of legend. Pen affects the legend borders.
*/
Tero Ahola
Code review: Fixed simple issues in Bar and Legend
r737 void QLegend::setPen(const QPen &pen)
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r645 {
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r950 if (d_ptr->m_pen != pen) {
d_ptr->m_pen = pen;
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r645 update();
Tero Ahola
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r1543 emit borderColorChanged(pen.color());
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Adds force option to chartTheme...
r645 }
sauimone
background to legend, theme applies
r540 }
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 Returns the pen used by legend
*/
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r724
Michal Klocek
Adds force option to chartTheme...
r645 QPen QLegend::pen() const
sauimone
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r540 {
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r950 return d_ptr->m_pen;
sauimone
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r540 }
Michal Klocek
Refactors layout managment...
r1534 void QLegend::setFont(const QFont &font)
{
if (d_ptr->m_font != font) {
d_ptr->m_font = font;
foreach (LegendMarker *marker, d_ptr->markers()) {
marker->setFont(d_ptr->m_font);
}
Michal Klocek
Fixes detach legend layout logic
r1536 layout()->invalidate();
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Refactors layout managment...
r1534 emit fontChanged(font);
}
}
QFont QLegend::font() const
{
return d_ptr->m_font;
}
Tero Ahola
Adding legend properties
r1452 void QLegend::setBorderColor(QColor color)
{
QPen p = d_ptr->m_pen;
if (p.color() != color) {
p.setColor(color);
setPen(p);
}
}
Tero Ahola
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r1357
Tero Ahola
Adding legend properties
r1452 QColor QLegend::borderColor()
{
return d_ptr->m_pen.color();
}
Tero Ahola
Qml ChartView properties; legend to use Qt alignments
r1357
Tero Ahola
Documented QLegend label properties
r1529 /*!
Set brush used to draw labels to \a brush.
*/
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legend theme fix
r1527 void QLegend::setLabelBrush(const QBrush &brush)
{
if (d_ptr->m_labelBrush != brush) {
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Refactors layout managment...
r1534 d_ptr->m_labelBrush = brush;
foreach (LegendMarker *marker, d_ptr->markers()) {
marker->setLabelBrush(d_ptr->m_labelBrush);
}
Tero Ahola
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r1543 emit labelColorChanged(brush.color());
sauimone
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r1527 }
}
Tero Ahola
Documented QLegend label properties
r1529 /*!
Brush used to draw labels.
*/
sauimone
legend theme fix
r1527 QBrush QLegend::labelBrush() const
{
return d_ptr->m_labelBrush;
}
void QLegend::setLabelColor(QColor color)
{
QBrush b = d_ptr->m_labelBrush;
if (b.style() != Qt::SolidPattern || b.color() != color) {
b.setStyle(Qt::SolidPattern);
b.setColor(color);
setLabelBrush(b);
}
}
QColor QLegend::labelColor() const
{
return d_ptr->m_labelBrush.color();
}
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Refactors layout managment...
r1534
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r1357 void QLegend::setAlignment(Qt::Alignment alignment)
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r616 {
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legend detach logic fix
r1281 if(d_ptr->m_alignment!=alignment) {
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r950 d_ptr->m_alignment = alignment;
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Refactors layout managment...
r1534 updateGeometry();
if(isAttachedToChart()){
d_ptr->m_presenter->layout()->invalidate();
}else{
layout()->invalidate();
}
Michal Klocek
Refactor qledgend handling...
r855 }
sauimone
Scrolling logic to legend
r716 }
Tero Ahola
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r1357 Qt::Alignment QLegend::alignment() const
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r716 {
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r950 return d_ptr->m_alignment;
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legend layouting change
r616 }
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 Detaches the legend from chart. Chart won't change layout of the legend.
*/
void QLegend::detachFromChart()
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framework for legend
r524 {
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r950 d_ptr->m_attachedToChart = false;
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Refactors layout managment...
r1534 d_ptr->m_layout->invalidate();
setParent(0);
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handleThemeChanged slot to legend.
r586 }
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 Attaches the legend to chart. Chart may change layout of the legend.
*/
void QLegend::attachToChart()
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handleThemeChanged slot to legend.
r586 {
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Refactors layout managment...
r1534 d_ptr->m_attachedToChart = true;
d_ptr->m_layout->invalidate();
setParent(d_ptr->m_chart);
sauimone
handleThemeChanged slot to legend.
r586 }
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 Returns true, if legend is attached to chart.
*/
bool QLegend::isAttachedToChart()
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r637 {
Michal Klocek
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r950 return d_ptr->m_attachedToChart;
sauimone
Added handling for pieslice add/remove to legend
r637 }
sauimone
legend layout with padding
r799 /*!
Michal Klocek
Adds qlegend pimpl...
r950 Sets the visibility of legend background to \a visible
*/
void QLegend::setBackgroundVisible(bool visible)
sauimone
legend layout with padding
r799 {
Tero Ahola
Adding legend properties
r1452 if(d_ptr->m_backgroundVisible != visible) {
d_ptr->m_backgroundVisible = visible;
Michal Klocek
Adds qlegend pimpl...
r950 update();
Tero Ahola
Adding legend properties
r1452 emit backgroundVisibleChanged(visible);
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Adds qlegend pimpl...
r950 }
sauimone
legend layout with padding
r799 }
/*!
Michal Klocek
Adds qlegend pimpl...
r950 Returns the visibility of legend background
*/
bool QLegend::isBackgroundVisible() const
sauimone
legend layout with padding
r799 {
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r950 return d_ptr->m_backgroundVisible;
sauimone
legend layout with padding
r799 }
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 \internal \a event see QGraphicsWidget for details
*/
void QLegend::hideEvent(QHideEvent *event)
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
r529 {
Michal Klocek
Adds qlegend pimpl...
r950 QGraphicsWidget::hideEvent(event);
Michal Klocek
Refactors layout managment...
r1534 d_ptr->m_presenter->layout()->invalidate();
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
r565 }
sauimone
layout fix to legend. Documented legend functions.
r724 /*!
Michal Klocek
Adds qlegend pimpl...
r950 \internal \a event see QGraphicsWidget for details
*/
void QLegend::showEvent(QShowEvent *event)
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
r565 {
Michal Klocek
Adds qlegend pimpl...
r950 QGraphicsWidget::showEvent(event);
Michal Klocek
Refactors layout managment...
r1534 d_ptr->m_presenter->layout()->invalidate();
Michal Klocek
Adds qlegend pimpl...
r950 }
Michal Klocek
Refactor qledgend handling...
r855
Michal Klocek
Adds qlegend pimpl...
r950 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
sauimone
legend example to documentation. minor legend fixes
r1300 QLegendPrivate::QLegendPrivate(ChartPresenter* presenter, QChart *chart, QLegend *q):
q_ptr(q),
m_presenter(presenter),
Michal Klocek
Refactors layout managment...
r1534 m_layout(new LegendLayout(q)),
sauimone
legend example to documentation. minor legend fixes
r1300 m_chart(chart),
Michal Klocek
Refactors layout managment...
r1534 m_items(new QGraphicsItemGroup(q)),
Tero Ahola
Qml ChartView properties; legend to use Qt alignments
r1357 m_alignment(Qt::AlignTop),
Tero Ahola
Fixed decoration of QLegend
r1455 m_brush(QBrush()),
m_pen(QPen()),
sauimone
legend theme fix
r1527 m_labelBrush(QBrush()),
sauimone
added roundness to legend background
r1453 m_diameter(5),
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legend example to documentation. minor legend fixes
r1300 m_attachedToChart(true),
m_backgroundVisible(false)
Michal Klocek
Adds qlegend pimpl...
r950 {
Michal Klocek
Refactor qledgend handling...
r855
sauimone
handleThemeChanged slot to legend.
r586 }
Michal Klocek
Adds qlegend pimpl...
r950 QLegendPrivate::~QLegendPrivate()
{
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
r529
Michal Klocek
Adds qlegend pimpl...
r950 }
void QLegendPrivate::setOffset(qreal x, qreal y)
Michal Klocek
Refactor qledgend handling...
r855 {
Michal Klocek
Refactors layout managment...
r1534 m_layout->setOffset(x,y);
Michal Klocek
Refactor qledgend handling...
r855 }
sauimone
Scrolling logic to legend
r716
sauimone
moved legend offset to private side
r1458 QPointF QLegendPrivate::offset() const
{
Michal Klocek
Refactors layout managment...
r1534 return m_layout->offset();
sauimone
legend example to documentation. minor legend fixes
r1300 }
sauimone
added roundness to legend background
r1453 int QLegendPrivate::roundness(qreal size)
{
return 100*m_diameter/int(size);
}
Tero Ahola
Renamed QSeries to QAbstractSeries
r988 void QLegendPrivate::handleSeriesAdded(QAbstractSeries *series, Domain *domain)
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r855 {
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r950 Q_UNUSED(domain)
sauimone
Scrolling logic to legend
r716
Michal Klocek
Adds qlegend pimpl...
r950 QList<LegendMarker*> markers = series->d_ptr->createLegendMarker(q_ptr);
Michal Klocek
Refactors layout managment...
r1534
sauimone
legend font fix
r1522 foreach(LegendMarker* marker, markers) {
marker->setFont(m_font);
sauimone
legend theme fix
r1527 marker->setLabelBrush(m_labelBrush);
Michal Klocek
Refactors layout managment...
r1534 m_items->addToGroup(marker);
m_markers<<marker;
sauimone
legend font fix
r1522 }
sauimone
Scrolling logic to legend
r716
sauimone
fix: series visible now affects legend items also
r1459 QObject::connect(series, SIGNAL(visibleChanged()), this, SLOT(handleSeriesVisibleChanged()));
Tero Ahola
Fixed a bug with legend not updating series labels
r1328 if(series->type() == QAbstractSeries::SeriesTypePie) {
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 QPieSeries *pieSeries = static_cast<QPieSeries *>(series);
Jani Honkonen
pie: make slice added/removed signals public (again)
r1213 QObject::connect(pieSeries, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleUpdatePieSeries()));
QObject::connect(pieSeries, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleUpdatePieSeries()));
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 }
Michal Klocek
Refactors layout managment...
r1534 q_ptr->layout()->invalidate();
Michal Klocek
Fixes blinking and minimal false size for legend
r1538 q_ptr->layout()->activate();
sauimone
Scrolling logic to legend
r716 }
Tero Ahola
Renamed QSeries to QAbstractSeries
r988 void QLegendPrivate::handleSeriesRemoved(QAbstractSeries *series)
sauimone
Scrolling logic to legend
r716 {
Michal Klocek
Refactors layout managment...
r1534 foreach (LegendMarker *marker, m_markers) {
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 if (marker->series() == series) {
delete marker;
Michal Klocek
Refactors layout managment...
r1534 m_markers.removeAll(marker);
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 }
}
Tero Ahola
Renamed QSeries to QAbstractSeries
r988 if(series->type() == QAbstractSeries::SeriesTypePie)
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 {
QPieSeries *pieSeries = static_cast<QPieSeries *>(series);
Jani Honkonen
pie: make slice added/removed signals public (again)
r1213 QObject::disconnect(pieSeries, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleUpdatePieSeries()));
QObject::disconnect(pieSeries, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleUpdatePieSeries()));
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 }
Michal Klocek
Adds qlegend pimpl...
r950
Michal Klocek
Refactors layout managment...
r1534 q_ptr->layout()->invalidate();
Michal Klocek
Refactor qledgend handling...
r855 }
sauimone
layout fix to legend. Documented legend functions.
r724
sauimone
legend detach example. Bug fixes to legend.
r1263 void QLegendPrivate::handleSeriesUpdated(QAbstractSeries *series)
{
// TODO: find out which markers are are added or removed. Update them
// TODO: better implementation
handleSeriesRemoved(series);
Domain domain;
handleSeriesAdded(series, &domain);
}
Jani Honkonen
API review changes for pie
r1009 void QLegendPrivate::handleUpdatePieSeries()
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 {
//TODO: reimplement to be optimal
Jani Honkonen
pie: make slice added/removed signals public (again)
r1213 QPieSeries* series = qobject_cast<QPieSeries *> (sender());
Q_ASSERT(series);
handleSeriesRemoved(series);
handleSeriesAdded(series, 0);
Michal Klocek
Adds trivial legend handling for slices when removed or added
r956 }
sauimone
fix: series visible now affects legend items also
r1459 void QLegendPrivate::handleSeriesVisibleChanged()
{
QAbstractSeries* series = qobject_cast<QAbstractSeries *> (sender());
Michal Klocek
Refactors layout managment...
r1534 foreach (LegendMarker* marker, m_markers) {
sauimone
fix: series visible now affects legend items also
r1459 if (marker->series() == series) {
marker->setVisible(!marker->isVisible());
}
}
Michal Klocek
Refactors layout managment...
r1534 q_ptr->layout()->invalidate();
sauimone
fix: series visible now affects legend items also
r1459 }
sauimone
framework for legend
r524 #include "moc_qlegend.cpp"
Michal Klocek
Adds qlegend pimpl...
r950 #include "moc_qlegend_p.cpp"
Tero Ahola
Code review: Fixed simple issues in Bar and Legend
r737
sauimone
framework for legend
r524 QTCOMMERCIALCHART_END_NAMESPACE