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authorTitta Heikkala <titta.heikkala@digia.com>2014-07-01 07:10:00 +0300
committerTitta Heikkala <titta.heikkala@theqtcompany.com>2014-10-14 13:04:52 +0300
commitc544258484ff4fd5d2b88402fbaa5d154b89a3a2 (patch)
tree7659625abb566dec55d3783ed820b928542d9b2b /examples/charts/zoomlinechart/chartview.cpp
parent76339f714f088645e911cee65bdb66055fe029aa (diff)
Qt Charts project file structure change
Charts repository structure is changed to follow the structure of a Qt Add-On module. The task includes following changes: - All macros and definitions named 'commercial' have been renamed. - Compile errors related to QString and qSort usage have been fixed. - Old demos are moved under examples. The QML examples now support only Qt Quick 2.0, the support for Qt Quick 1 is removed. - The QML examples with multiple views are updated so that they are usable also with touch devices. - Unnecessary version checks are removed from examples. - The build stamp has been removed as it was only meant for Charts development purposes and it's no longer needed. Also development build related debug prints are removed as __DATE__ can't be used for all OS thus it doesn't make much sense. - Documentation structure has been updated based on the new module structure. The raw HTML files have been removed. Demos are combined to examples. - Unnecessary .qdocinc files are no longer needed. The content is moved to the corresponding .cpp files. - The Charts widget designer plugin is updated according to the module change. - The test cases updated according to the project structure change. Tests are added also for version 2.0. - cmake modules generation is not needed with Qt 5.4 and Qt Charts so it's disabled. - The new module name and version are updated to the plugin.qmltypes file. Task-number: QTRD-2844, QTRD-3217, QTRD-3218, QTRD-3277, QTRD-3228, QTRD-2526, QTRD-3233, QTRD-3222 Change-Id: Ib7fb26057cde710ffaf6bc780c8bf52a16f45160 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Diffstat (limited to 'examples/charts/zoomlinechart/chartview.cpp')
-rw-r--r--examples/charts/zoomlinechart/chartview.cpp100
1 files changed, 100 insertions, 0 deletions
diff --git a/examples/charts/zoomlinechart/chartview.cpp b/examples/charts/zoomlinechart/chartview.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 "chartview.h"
+#include <QMouseEvent>
+
+ChartView::ChartView(QChart *chart, QWidget *parent) :
+ QChartView(chart, parent),
+ m_isTouching(false)
+{
+ setRubberBand(QChartView::RectangleRubberBand);
+}
+
+bool ChartView::viewportEvent(QEvent *event)
+{
+ if (event->type() == QEvent::TouchBegin) {
+ // By default touch events are converted to mouse events. So
+ // after this event we will get a mouse event also but we want
+ // to handle touch events as gestures only. So we need this safeguard
+ // to block mouse events that are actually generated from touch.
+ m_isTouching = true;
+
+ // Turn off animations when handling gestures they
+ // will only slow us down.
+ chart()->setAnimationOptions(QChart::NoAnimation);
+ }
+ return QChartView::viewportEvent(event);
+}
+
+void ChartView::mousePressEvent(QMouseEvent *event)
+{
+ if (m_isTouching)
+ return;
+ QChartView::mousePressEvent(event);
+}
+
+void ChartView::mouseMoveEvent(QMouseEvent *event)
+{
+ if (m_isTouching)
+ return;
+ QChartView::mouseMoveEvent(event);
+}
+
+void ChartView::mouseReleaseEvent(QMouseEvent *event)
+{
+ if (m_isTouching)
+ m_isTouching = false;
+
+ // Because we disabled animations when touch event was detected
+ // we must put them back on.
+ chart()->setAnimationOptions(QChart::SeriesAnimations);
+
+ QChartView::mouseReleaseEvent(event);
+}
+
+//![1]
+void ChartView::keyPressEvent(QKeyEvent *event)
+{
+ switch (event->key()) {
+ case Qt::Key_Plus:
+ chart()->zoomIn();
+ break;
+ case Qt::Key_Minus:
+ chart()->zoomOut();
+ break;
+//![1]
+ case Qt::Key_Left:
+ chart()->scroll(-10, 0);
+ break;
+ case Qt::Key_Right:
+ chart()->scroll(10, 0);
+ break;
+ case Qt::Key_Up:
+ chart()->scroll(0, 10);
+ break;
+ case Qt::Key_Down:
+ chart()->scroll(0, -10);
+ break;
+ default:
+ QGraphicsView::keyPressEvent(event);
+ break;
+ }
+}