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Adjust various margins and paddings....
Adjust various margins and paddings. The text items have been changed to use QGraphicsTextItem bounding rects instead of calculating dimensions using QFontMetrics. It seems that QGraphicsTextItem boundingRect involves a lot more of a margin than QFontMetrics provided. To compensate, various margins and paddings have been adjusted lower. Change-Id: Idebf939f5dd804fb96daeaea4bbf1b45f4f02908 Reviewed-by: Mika Salmela <mika.salmela@digia.com>
Miikka Heikkinen - - Load All Authors

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r2433:4d17a12f375e
r2569:f4eaee212ddc
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grid.cpp
301 lines | 8.3 KiB | text/x-c | CppLexer
/ tests / chartviewer / grid.cpp
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Michal Klocek
Refactor charviewer...
 r2127 /****************************************************************************
**
Miikka Heikkinen
More copyright year changes
 r2433 ** Copyright (C) 2013 Digia Plc
Michal Klocek
Refactor charviewer...
 r2127 ** 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 "grid.h"
#include "charts.h"
#include <qchart.h>
#include <QGraphicsGridLayout>
#include <QGraphicsSceneMouseEvent>
#include <QDebug>
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 Grid::Grid(int size, QGraphicsItem *parent)
: QGraphicsWidget(parent),
m_listCount(3),
m_valueMax(10),
m_valueCount(7),
m_size(size),
m_dataTable(Model::generateRandomData(m_listCount, m_valueMax, m_valueCount)),
m_state(NoState),
m_currentState(NoState),
m_rubberBand(new QGraphicsRectItem()),
m_gridLayout(new QGraphicsGridLayout())
Michal Klocek
Refactor charviewer...
 r2127 {
setLayout(m_gridLayout);
m_rubberBand->setParentItem(this);
m_rubberBand->setVisible(false);
m_rubberBand->setZValue(2);
}
Grid::~Grid()
{
}
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 void Grid::createCharts(const QString &category)
Michal Klocek
Refactor charviewer...
 r2127 {
clear();
QChart *qchart(0);
Charts::ChartList list = Charts::chartList();
Michal Klocek
Adds view menu to chartviewer
 r2128 if (category.isEmpty()) {
for (int i = 0; i < m_size * m_size; ++i) {
Michal Klocek
Adds chart parser to cherviewer options
 r2135 QChart *chart = new QChart();
chart->setTitle(QObject::tr("Empty"));
Michal Klocek
Adds view menu to chartviewer
 r2128 m_gridLayout->addItem(chart, i / m_size, i % m_size);
m_chartHash[chart] = i;
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_chartHashRev[i] = chart;
Michal Klocek
Adds view menu to chartviewer
 r2128 }
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 } else {
Michal Klocek
Adds view menu to chartviewer
 r2128 int j = 0;
for (int i = 0; i < list.size(); ++i) {
Chart *chart = list.at(i);
if (chart->category() == category && j < m_size * m_size) {
qchart = list.at(i)->createChart(m_dataTable);
m_gridLayout->addItem(qchart, j / m_size, j % m_size);
m_chartHash[qchart] = j;
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_chartHashRev[j] = qchart;
Michal Klocek
Adds view menu to chartviewer
 r2128 j++;
}
}
for (; j < m_size * m_size; ++j) {
qchart = new QChart();
qchart->setTitle(QObject::tr("Empty"));
Michal Klocek
Refactor charviewer...
 r2127 m_gridLayout->addItem(qchart, j / m_size, j % m_size);
m_chartHash[qchart] = j;
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_chartHashRev[j] = qchart;
Michal Klocek
Refactor charviewer...
 r2127 }
}
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_gridLayout->activate();
}
void Grid::createCharts(const QString &category, const QString &subcategory, const QString &name)
{
clear();
QChart *qchart(0);
Charts::ChartList list = Charts::chartList();
Chart *chart;
//find chart
for (int i = 0; i < list.size(); ++i) {
chart = list.at(i);
if (chart->category() == category &&
chart->subCategory() == subcategory &&
chart->name() == name) {
break;
}
chart = 0;
}
//create charts
for (int j = 0; j < m_size * m_size; ++j) {
if(!chart){
qchart = new QChart();
}else{
qchart = chart->createChart(m_dataTable);
}
qchart->setTitle(QObject::tr("Empty"));
m_gridLayout->addItem(qchart, j / m_size, j % m_size);
m_chartHash[qchart] = j;
m_chartHashRev[j] = qchart;
}
Michal Klocek
Refactor charviewer...
 r2127 m_gridLayout->activate();
}
void Grid::clear()
{
Michal Klocek
Adds chart parser to cherviewer options
 r2135 int count = m_gridLayout->count();
for (int i = 0; i < count; ++i)
m_gridLayout->removeAt(0);
Michal Klocek
Refactor charviewer...
 r2127
qDeleteAll(m_chartHash.keys());
m_chartHash.clear();
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_chartHashRev.clear();
Michal Klocek
Refactor charviewer...
 r2127 }
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 QList<QChart *> Grid::charts()
Michal Klocek
Refactor charviewer...
 r2127 {
return m_chartHash.keys();
}
void Grid::setState(State state)
{
m_state = state;
}
Michal Klocek
Adds view menu to chartviewer
 r2128 void Grid::setSize(int size)
{
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 if (m_size != size) {
Michal Klocek
Adds chart parser to cherviewer options
 r2135
//remove old;
int count = m_gridLayout->count();
for (int i = 0; i < count; ++i) {
m_gridLayout->removeAt(0);
}
QChart* qchart = 0;
int j = 0;
for (; j < size * size; ++j) {
qchart = m_chartHashRev[j];
if (!qchart){
qchart = new QChart();
qchart->setTitle(QObject::tr("Empty"));
}
m_chartHash[qchart] = j;
m_chartHashRev[j] = qchart;
m_gridLayout->addItem(qchart, j / size, j % size);
}
//delete rest
while (j < m_size * m_size) {
QChart* qchart = m_chartHashRev.take(j);
delete(qchart);
m_chartHash.remove(qchart);
j++;
}
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 m_size = size;
Michal Klocek
Adds view menu to chartviewer
 r2128 }
}
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 void Grid::setRubberPen(const QPen &pen)
Michal Klocek
Refactor charviewer...
 r2127 {
m_rubberBand->setPen(pen);
}
Jani Honkonen
demos: coding style police make a surprise strike
 r2130 void Grid::replaceChart(QChart *oldChart, Chart *newChart)
Michal Klocek
Refactor charviewer...
 r2127 {
int index = m_chartHash[oldChart];
//not in 4.7.2 m_baseLayout->removeItem(qchart);
for (int i = 0; i < m_gridLayout->count(); ++i) {
if (m_gridLayout->itemAt(i) == oldChart) {
m_gridLayout->removeAt(i);
break;
}
}
m_chartHash.remove(oldChart);
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_chartHashRev.remove(index);
Michal Klocek
Refactor charviewer...
 r2127 QChart *chart = newChart->createChart(m_dataTable);
m_gridLayout->addItem(chart, index / m_size, index % m_size);
m_chartHash[chart] = index;
Michal Klocek
Adds chart parser to cherviewer options
 r2135 m_chartHashRev[index] = chart;
Michal Klocek
Refactor charviewer...
 r2127 delete oldChart;
}
void Grid::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
m_origin = event->pos();
m_currentState = NoState;
foreach (QChart *chart, charts()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
m_currentState = m_state;
if (m_currentState == NoState) emit chartSelected(chart);
break;
}
}
if (m_currentState == ZoomState) {
m_rubberBand->setRect(QRectF(m_origin, QSize()));
m_rubberBand->setVisible(true);
}
event->accept();
}
if (event->button() == Qt::RightButton) {
m_origin = event->pos();
m_currentState = m_state;
}
}
void Grid::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (m_currentState != NoState) {
foreach (QChart *chart, charts()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
if (m_currentState == ScrollState) {
QPointF delta = m_origin - event->pos();
chart->scroll(delta.x(), -delta.y());
}
if (m_currentState == ZoomState && plotArea.contains(event->pos()))
m_rubberBand->setRect(QRectF(m_origin, event->pos()).normalized());
break;
}
}
if (m_currentState == ScrollState)
m_origin = event->pos();
event->accept();
}
}
void Grid::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
if (m_currentState == ZoomState) {
m_rubberBand->setVisible(false);
foreach (QChart *chart, charts()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
QRectF rect = m_rubberBand->rect();
rect.translate(-geometryRect.topLeft());
chart->zoomIn(rect);
break;
}
}
}
m_currentState = NoState;
event->accept();
}
if (event->button() == Qt::RightButton) {
if (m_currentState == ZoomState) {
foreach (QChart *chart, charts()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
chart->zoomOut();
break;
}
}
}
}
}