grid.cpp
246 lines
| 6.7 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r2127 | /**************************************************************************** | ||
| ** | ||||
| ** 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 "grid.h" | ||||
| #include "charts.h" | ||||
| #include <qchart.h> | ||||
| #include <QGraphicsGridLayout> | ||||
| #include <QGraphicsSceneMouseEvent> | ||||
| #include <QDebug> | ||||
| 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)), | ||||
|
Michal Klocek
|
r2128 | m_state(NoState), | ||
| m_currentState(NoState), | ||||
|
Michal Klocek
|
r2127 | m_rubberBand(new QGraphicsRectItem()), | ||
| m_gridLayout(new QGraphicsGridLayout()) | ||||
| { | ||||
| setLayout(m_gridLayout); | ||||
| m_rubberBand->setParentItem(this); | ||||
| m_rubberBand->setVisible(false); | ||||
| m_rubberBand->setZValue(2); | ||||
| } | ||||
| Grid::~Grid() | ||||
| { | ||||
| } | ||||
| void Grid::createCharts(const QString& category) | ||||
| { | ||||
| clear(); | ||||
| QChart *qchart(0); | ||||
| Charts::ChartList list = Charts::chartList(); | ||||
|
Michal Klocek
|
r2128 | if (category.isEmpty()) { | ||
| for (int i = 0; i < m_size * m_size; ++i) { | ||||
| QChart *chart = 0; | ||||
| if (i < list.size()) { | ||||
| chart = list.at(i)->createChart(m_dataTable); | ||||
| } | ||||
| else { | ||||
| chart = new QChart(); | ||||
| chart->setTitle(QObject::tr("Empty")); | ||||
| } | ||||
| m_gridLayout->addItem(chart, i / m_size, i % m_size); | ||||
| m_chartHash[chart] = i; | ||||
| } | ||||
| } | ||||
| else { | ||||
| 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; | ||||
| j++; | ||||
| } | ||||
| } | ||||
| for (; j < m_size * m_size; ++j) { | ||||
| qchart = new QChart(); | ||||
| qchart->setTitle(QObject::tr("Empty")); | ||||
|
Michal Klocek
|
r2127 | m_gridLayout->addItem(qchart, j / m_size, j % m_size); | ||
| m_chartHash[qchart] = j; | ||||
| } | ||||
| } | ||||
|
Michal Klocek
|
r2128 | m_category = category; | ||
|
Michal Klocek
|
r2127 | m_gridLayout->activate(); | ||
| } | ||||
| void Grid::clear() | ||||
| { | ||||
| for (int i = 0; i < m_gridLayout->count(); ++i) { | ||||
| m_gridLayout->removeAt(i); | ||||
| } | ||||
| qDeleteAll(m_chartHash.keys()); | ||||
| m_chartHash.clear(); | ||||
| } | ||||
| QList<QChart*> Grid::charts() | ||||
| { | ||||
| return m_chartHash.keys(); | ||||
| } | ||||
| void Grid::setState(State state) | ||||
| { | ||||
| m_state = state; | ||||
| } | ||||
|
Michal Klocek
|
r2128 | void Grid::setSize(int size) | ||
| { | ||||
| if(m_size !=size) | ||||
| { | ||||
| m_size = size; | ||||
| createCharts(m_category); | ||||
| } | ||||
| } | ||||
|
Michal Klocek
|
r2127 | void Grid::setRubberPen(const QPen& pen) | ||
| { | ||||
| m_rubberBand->setPen(pen); | ||||
| } | ||||
| void Grid::replaceChart(QChart* oldChart, Chart* newChart) | ||||
| { | ||||
| 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); | ||||
| QChart *chart = newChart->createChart(m_dataTable); | ||||
| m_gridLayout->addItem(chart, index / m_size, index % m_size); | ||||
| m_chartHash[chart] = index; | ||||
| 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; | ||||
| } | ||||
| } | ||||
| } | ||||
| } | ||||
| } | ||||