chartaxisy.cpp
116 lines
| 3.9 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r1241 | /**************************************************************************** | ||
| ** | ||||
| ** 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 "chartaxisy_p.h" | ||||
| #include "qaxis.h" | ||||
| #include "qaxis_p.h" | ||||
| #include "qaxiscategories_p.h" | ||||
| #include "chartpresenter_p.h" | ||||
| #include "chartanimator_p.h" | ||||
| static int label_padding = 5; | ||||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| ChartAxisY::ChartAxisY(QAxis *axis,ChartPresenter *presenter) : ChartAxis(axis,presenter) | ||||
| { | ||||
| } | ||||
| ChartAxisY::~ChartAxisY() | ||||
| { | ||||
| } | ||||
| QVector<qreal> ChartAxisY::calculateLayout() const | ||||
| { | ||||
| Q_ASSERT(m_ticksCount>=2); | ||||
| QVector<qreal> points; | ||||
| points.resize(m_ticksCount); | ||||
| const qreal deltaY = m_rect.height()/(m_ticksCount-1); | ||||
| for (int i = 0; i < m_ticksCount; ++i) { | ||||
| int y = i * -deltaY + m_rect.bottom(); | ||||
| points[i] = y; | ||||
| } | ||||
| return points; | ||||
| } | ||||
| void ChartAxisY::updateGeometry() | ||||
| { | ||||
| const QVector<qreal> &layout = ChartAxis::layout(); | ||||
| QStringList ticksList; | ||||
| bool categories = createLabels(ticksList,m_min,m_max,layout.size()); | ||||
| QList<QGraphicsItem *> lines = m_grid->childItems(); | ||||
| QList<QGraphicsItem *> labels = m_labels->childItems(); | ||||
| QList<QGraphicsItem *> shades = m_shades->childItems(); | ||||
| QList<QGraphicsItem *> axis = m_axis->childItems(); | ||||
| Q_ASSERT(labels.size() == ticksList.size()); | ||||
| Q_ASSERT(layout.size() == ticksList.size()); | ||||
| qreal minWidth = 0; | ||||
| qreal minHeight = 0; | ||||
| QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(axis.at(0)); | ||||
| lineItem->setLine(m_rect.left() , m_rect.top(), m_rect.left(), m_rect.bottom()); | ||||
| for (int i = 0; i < layout.size(); ++i) { | ||||
| QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(lines.at(i)); | ||||
| lineItem->setLine(m_rect.left() , layout[i], m_rect.right(), layout[i]); | ||||
| QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem*>(labels.at(i)); | ||||
| if (!categories || i<1) { | ||||
| labelItem->setText(ticksList.at(i)); | ||||
| const QRectF& rect = labelItem->boundingRect(); | ||||
| minWidth=qMax(rect.width()+label_padding,minWidth); | ||||
| minHeight+=rect.height(); | ||||
| QPointF center = rect.center(); | ||||
| labelItem->setTransformOriginPoint(center.x(), center.y()); | ||||
| labelItem->setPos(m_rect.left() - rect.width() - label_padding , layout[i]-center.y()); | ||||
| } | ||||
| else { | ||||
| labelItem->setText(ticksList.at(i)); | ||||
| const QRectF& rect = labelItem->boundingRect(); | ||||
| minWidth=qMax(rect.width(),minWidth); | ||||
| minHeight+=rect.height(); | ||||
| QPointF center = rect.center(); | ||||
| labelItem->setTransformOriginPoint(center.x(), center.y()); | ||||
| labelItem->setPos(m_rect.left() - rect.width() - label_padding , layout[i] - (layout[i] - layout[i-1])/2 -center.y()); | ||||
| } | ||||
| if ((i+1)%2 && i>1) { | ||||
| QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem*>(shades.at(i/2-1)); | ||||
| rectItem->setRect(m_rect.left(),layout[i],m_rect.width(),layout[i-1]-layout[i]); | ||||
| } | ||||
| lineItem = static_cast<QGraphicsLineItem*>(axis.at(i+1)); | ||||
| lineItem->setLine(m_rect.left()-5,layout[i],m_rect.left(),layout[i]); | ||||
| } | ||||
sauimone
|
r1386 | presenter()->setMinimumMarginWidth(this,minWidth); | ||
| presenter()->setMinimumMarginHeight(this,minHeight); | ||||
|
Michal Klocek
|
r1241 | |||
| } | ||||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||