##// END OF EJS Templates
Updated spline chart example documentation and added some more docs to barseries
Updated spline chart example documentation and added some more docs to barseries

File last commit:

r794:4c76de65bbac
r901:087f347c6433
Show More
chartanimator.cpp
299 lines | 8.5 KiB | text/x-c | CppLexer
/****************************************************************************
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "chartanimator_p.h"
#include "axisanimation_p.h"
#include "xyanimation_p.h"
#include "splineanimation_p.h"
#include "xychartitem_p.h"
#include "pieanimation_p.h"
#include "baranimation_p.h"
#include "barchartitem_p.h"
#include "areachartitem_p.h"
#include "splinechartitem_p.h"
#include "scatterchartitem_p.h"
#include <QTimer>
Q_DECLARE_METATYPE(QVector<QPointF>)
Q_DECLARE_METATYPE(QVector<qreal>)
Q_DECLARE_METATYPE(QVector<QRectF>)
QTCOMMERCIALCHART_BEGIN_NAMESPACE
const static int duration = 1000;
ChartAnimator::ChartAnimator(QObject *parent):QObject(parent),
m_state(ShowState)
{
}
ChartAnimator::~ChartAnimator()
{
}
void ChartAnimator::addAnimation(Axis *item)
{
ChartAnimation *animation = m_animations.value(item);
if (!animation) {
animation = new AxisAnimation(item);
m_animations.insert(item, animation);
}
item->setAnimator(this);
}
void ChartAnimator::addAnimation(SplineChartItem *item)
{
ChartAnimation *animation = m_animations.value(item);
if (!animation) {
animation = new SplineAnimation(item);
m_animations.insert(item, animation);
}
item->setAnimator(this);
}
void ChartAnimator::addAnimation(ScatterChartItem *item)
{
ChartAnimation *animation = m_animations.value(item);
if (!animation) {
animation = new XYAnimation(item);
m_animations.insert(item, animation);
}
item->setAnimator(this);
}
void ChartAnimator::addAnimation(LineChartItem *item)
{
ChartAnimation *animation = m_animations.value(item);
if (!animation) {
animation = new XYAnimation(item);
m_animations.insert(item, animation);
}
item->setAnimator(this);
}
void ChartAnimator::addAnimation(PieChartItem *item)
{
ChartAnimation *animation = m_animations.value(item);
if (!animation) {
animation = new PieAnimation(item);
m_animations.insert(item, animation);
}
item->setAnimator(this);
}
void ChartAnimator::addAnimation(BarChartItem *item)
{
ChartAnimation *animation = m_animations.value(item);
if (!animation) {
animation = new BarAnimation(item);
m_animations.insert(item, animation);
}
item->setAnimator(this);
}
void ChartAnimator::removeAnimation(Chart *item)
{
item->setAnimator(0);
m_animations.remove(item);
}
void ChartAnimator::updateLayout(Axis *item , QVector<qreal> &newLayout)
{
AxisAnimation *animation = static_cast<AxisAnimation*>(m_animations.value(item));
Q_ASSERT(animation);
QVector<qreal> oldLayout = item->layout();
if (newLayout.count() == 0)
return;
switch (m_state) {
case ZoomOutState: {
QRectF rect = item->geometry();
oldLayout.resize(newLayout.count());
for(int i = 0, j = oldLayout.count() - 1; i < (oldLayout.count() + 1) / 2; i++, j--) {
oldLayout[i] = item->axisType() == Axis::X_AXIS ? rect.left() : rect.bottom();
oldLayout[j] = item->axisType() == Axis::X_AXIS ? rect.right() : rect.top();
}
}
break;
case ZoomInState: {
int index = qMin(oldLayout.count() * (item->axisType() == Axis::X_AXIS ? m_point.x() : (1 - m_point.y())), newLayout.count() - 1.0);
oldLayout.resize(newLayout.count());
for(int i = 0; i < oldLayout.count(); i++)
oldLayout[i]= oldLayout[index];
}
break;
case ScrollDownState:
case ScrollRightState: {
oldLayout.resize(newLayout.count());
for(int i = 0, j = i + 1; i < oldLayout.count() - 1; i++, j++)
oldLayout[i]= oldLayout[j];
}
break;
case ScrollUpState:
case ScrollLeftState: {
oldLayout.resize(newLayout.count());
for(int i = oldLayout.count() - 1, j = i - 1; i > 0; i--, j--)
oldLayout[i]= oldLayout[j];
}
break;
default: {
oldLayout.resize(newLayout.count());
QRectF rect = item->geometry();
for(int i = 0, j = oldLayout.count() - 1; i < oldLayout.count(); i++, j--)
oldLayout[i] = item->axisType() == Axis::X_AXIS ? rect.left() : rect.top();
}
break;
}
if (animation->state() != QAbstractAnimation::Stopped)
animation->stop();
animation->setDuration(duration);
animation->setEasingCurve(QEasingCurve::OutQuart);
QVariantAnimation::KeyValues value;
animation->setKeyValues(value); //workaround for wrong interpolation call
animation->setKeyValueAt(0.0, qVariantFromValue(oldLayout));
animation->setKeyValueAt(1.0, qVariantFromValue(newLayout));
QTimer::singleShot(0, animation, SLOT(start()));
}
void ChartAnimator::updateLayout(SplineChartItem *item, QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, QVector<QPointF> &oldControlPoints, QVector<QPointF> &newControlPoints, int index)
{
SplineAnimation *animation = static_cast<SplineAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
if (newPoints.count() < 2 || newControlPoints.count() < 2)
return;
bool empty = oldPoints.count() == 0;
if (animation->state() != QAbstractAnimation::Stopped)
animation->stop();
animation->setDuration(duration);
if (!empty)
animation->setAnimationType(ChartAnimation::MoveDownAnimation);
else
animation->setAnimationType(ChartAnimation::LineDrawAnimation);
animation->setEasingCurve(QEasingCurve::OutQuart);
animation->setValues(oldPoints, newPoints, oldControlPoints, newControlPoints, index);
QTimer::singleShot(0, animation, SLOT(start()));
}
void ChartAnimator::updateLayout(XYChartItem *item, QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index)
{
XYAnimation *animation = static_cast<XYAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
if (newPoints.count() == 0)
return;
bool empty = oldPoints.count() == 0;
if (animation->state() != QAbstractAnimation::Stopped)
animation->stop();
animation->setDuration(duration);
if (!empty)
animation->setAnimationType(ChartAnimation::MoveDownAnimation);
else
animation->setAnimationType(ChartAnimation::LineDrawAnimation);
animation->setEasingCurve(QEasingCurve::OutQuart);
animation->setValues(oldPoints, newPoints, index);
QTimer::singleShot(0, animation, SLOT(start()));
}
void ChartAnimator::addAnimation(PieChartItem *item, QPieSlice *slice, const PieSliceData &sliceData, bool isEmpty)
{
PieAnimation *animation = static_cast<PieAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
animation->addSlice(slice, sliceData, isEmpty);
}
void ChartAnimator::removeAnimation(PieChartItem *item, QPieSlice *slice)
{
PieAnimation *animation = static_cast<PieAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
animation->removeSlice(slice);
}
void ChartAnimator::updateLayout(PieChartItem *item, const PieLayout &layout)
{
PieAnimation *animation = static_cast<PieAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
animation->updateValues(layout);
}
void ChartAnimator::updateLayout(PieChartItem *item, QPieSlice *slice, const PieSliceData &sliceData)
{
PieAnimation *animation = static_cast<PieAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
animation->updateValue(slice, sliceData);
}
void ChartAnimator::updateLayout(BarChartItem *item, const QVector<QRectF> &oldLayout, const QVector<QRectF> &newLayout)
{
BarAnimation *animation = static_cast<BarAnimation *>(m_animations.value(item));
Q_ASSERT(animation);
animation->setDuration(duration);
animation->setKeyValueAt(0.0, qVariantFromValue(oldLayout));
animation->setKeyValueAt(1.0, qVariantFromValue(newLayout));
QTimer::singleShot(0, animation, SLOT(start()));
}
void ChartAnimator::setState(State state, const QPointF &point)
{
m_state = state;
m_point = point;
}
QTCOMMERCIALCHART_END_NAMESPACE