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renamed barchart floating values with labels to be consistent with piechart
sauimone -
r820:2bd79611bb1d
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@@ -360,7 +360,6 void ThemeWidget::updateUI()
360
360
361 QLegend::Alignments alignment(m_legendComboBox->itemData(m_legendComboBox->currentIndex()).toInt());
361 QLegend::Alignments alignment(m_legendComboBox->itemData(m_legendComboBox->currentIndex()).toInt());
362 foreach (QChartView *chartView, m_charts) {
362 foreach (QChartView *chartView, m_charts) {
363 qDebug() << alignment;
364 chartView->chart()->legend()->setAlignmnent(alignment);
363 chartView->chart()->legend()->setAlignmnent(alignment);
365 }
364 }
366 }
365 }
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@@ -11,7 +11,7 SOURCES += \
11 $$PWD/qpercentbarseries.cpp \
11 $$PWD/qpercentbarseries.cpp \
12 $$PWD/qstackedbarseries.cpp \
12 $$PWD/qstackedbarseries.cpp \
13 $$PWD/stackedbarchartitem.cpp \
13 $$PWD/stackedbarchartitem.cpp \
14 $$PWD/barvalue.cpp
14 $$PWD/barlabel.cpp
15
15
16 PRIVATE_HEADERS += \
16 PRIVATE_HEADERS += \
17 $$PWD/bar_p.h \
17 $$PWD/bar_p.h \
@@ -19,7 +19,7 PRIVATE_HEADERS += \
19 $$PWD/barchartitem_p.h \
19 $$PWD/barchartitem_p.h \
20 $$PWD/percentbarchartitem_p.h \
20 $$PWD/percentbarchartitem_p.h \
21 $$PWD/stackedbarchartitem_p.h \
21 $$PWD/stackedbarchartitem_p.h \
22 $$PWD/barvalue_p.h
22 $$PWD/barlabel_p.h
23
23
24 PUBLIC_HEADERS += \
24 PUBLIC_HEADERS += \
25 $$PWD/qbarseries.h \
25 $$PWD/qbarseries.h \
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@@ -20,7 +20,7
20
20
21 #include "barchartitem_p.h"
21 #include "barchartitem_p.h"
22 #include "bar_p.h"
22 #include "bar_p.h"
23 #include "barvalue_p.h"
23 #include "barlabel_p.h"
24 #include "qbarset.h"
24 #include "qbarset.h"
25 #include "qbarseries.h"
25 #include "qbarseries.h"
26 #include "qchart.h"
26 #include "qchart.h"
@@ -75,7 +75,7 void BarChartItem::dataChanged()
75 delete item;
75 delete item;
76
76
77 m_bars.clear();
77 m_bars.clear();
78 m_values.clear();
78 m_labels.clear();
79 m_layout.clear();
79 m_layout.clear();
80
80
81 // Create new graphic items for bars
81 // Create new graphic items for bars
@@ -93,14 +93,14 void BarChartItem::dataChanged()
93 }
93 }
94 }
94 }
95
95
96 // Create value items
96 // Create labels
97 for (int category = 0; category < m_series->categoryCount(); category++) {
97 for (int category = 0; category < m_series->categoryCount(); category++) {
98 for (int s = 0; s < m_series->barsetCount(); s++) {
98 for (int s = 0; s < m_series->barsetCount(); s++) {
99 QBarSet *set = m_series->barsetAt(s);
99 QBarSet *set = m_series->barsetAt(s);
100 BarValue *value = new BarValue(*set, this);
100 BarLabel *value = new BarLabel(*set, this);
101 childItems().append(value);
101 childItems().append(value);
102 m_values.append(value);
102 m_labels.append(value);
103 connect(set,SIGNAL(valuesVisibleChanged(bool)),value,SLOT(valuesVisibleChanged(bool)));
103 connect(set,SIGNAL(labelsVisibleChanged(bool)),value,SLOT(labelsVisibleChanged(bool)));
104 }
104 }
105 }
105 }
106 }
106 }
@@ -142,17 +142,17 QVector<QRectF> BarChartItem::calculateLayout()
142 bar->setPen(barSet->pen());
142 bar->setPen(barSet->pen());
143 bar->setBrush(barSet->brush());
143 bar->setBrush(barSet->brush());
144
144
145 BarValue* value = m_values.at(itemIndex);
145 BarLabel* label = m_labels.at(itemIndex);
146
146
147 if (!qFuzzyIsNull(barSet->valueAt(category))) {
147 if (!qFuzzyIsNull(barSet->valueAt(category))) {
148 value->setText(QString::number(barSet->valueAt(category)));
148 label->setText(QString::number(barSet->valueAt(category)));
149 } else {
149 } else {
150 value->setText(QString(""));
150 label->setText(QString(""));
151 }
151 }
152
152
153 value->setPos(xPos + (rect.width()/2 - value->boundingRect().width()/2)
153 label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2)
154 ,yPos - barHeight/2 - value->boundingRect().height()/2);
154 ,yPos - barHeight/2 - label->boundingRect().height()/2);
155 value->setPen(barSet->valuePen());
155 // value->setFont(barSet->valueFont());
156
156
157 itemIndex++;
157 itemIndex++;
158 xPos += barWidth;
158 xPos += barWidth;
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@@ -29,7 +29,7
29 QTCOMMERCIALCHART_BEGIN_NAMESPACE
29 QTCOMMERCIALCHART_BEGIN_NAMESPACE
30
30
31 class Bar;
31 class Bar;
32 class BarValue;
32 class BarLabel;
33 class QChartAxisCategories;
33 class QChartAxisCategories;
34 class QChart;
34 class QChart;
35
35
@@ -81,7 +81,7 protected:
81 // Not owned.
81 // Not owned.
82 QBarSeries *m_series;
82 QBarSeries *m_series;
83 QList<Bar *> m_bars;
83 QList<Bar *> m_bars;
84 QList<BarValue *> m_values;
84 QList<BarLabel *> m_labels;
85 };
85 };
86
86
87 QTCOMMERCIALCHART_END_NAMESPACE
87 QTCOMMERCIALCHART_END_NAMESPACE
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@@ -18,73 +18,87
18 **
18 **
19 ****************************************************************************/
19 ****************************************************************************/
20
20
21 #include "barvalue_p.h"
21 #include "barlabel_p.h"
22 #include "chartpresenter_p.h"
23 #include <QBarSet>
22 #include <QPainter>
24 #include <QPainter>
23 #include <QPen>
25 #include <QPen>
24 #include <QGraphicsSimpleTextItem>
26 #include <QGraphicsSimpleTextItem>
25
27
26 QTCOMMERCIALCHART_BEGIN_NAMESPACE
28 QTCOMMERCIALCHART_BEGIN_NAMESPACE
27
29
28 BarValue::BarValue(QBarSet &set, QGraphicsItem *parent) : QGraphicsObject(parent),
30 BarLabel::BarLabel(QBarSet &barSet, QGraphicsItem *parent) : QGraphicsObject(parent),
29 m_barSet(set),
31 m_barSet(barSet),
30 m_textItem(new QGraphicsSimpleTextItem(this))
32 m_textItem(new QGraphicsSimpleTextItem(this))
31 {
33 {
32 // connect(&set,SIGNAL(valuesVisibleChanged(bool)),value,SLOT(valuesVisibleChanged(bool)));
34 // connect(&set,SIGNAL(labelsVisibleChanged(bool)),value,SLOT(labelsVisibleChanged(bool)));
33 setVisible(false);
35 setZValue(ChartPresenter::BarSeriesZValue + 1);
36 setVisible(barSet.labelsVisible());
37 setPen(Qt::NoPen);
38 setBrush(Qt::SolidPattern);
34 }
39 }
35
40
36 void BarValue::setText(QString str)
41 void BarLabel::setText(QString str)
37 {
42 {
38 m_textItem->setText(str);
43 m_textItem->setText(str);
39 }
44 }
40
45
41 QString BarValue::text() const
46 QString BarLabel::text() const
42 {
47 {
43 return m_textItem->text();
48 return m_textItem->text();
44 }
49 }
45
50
46 void BarValue::setPen(const QPen &pen)
51 void BarLabel::setPen(const QPen &pen)
47 {
52 {
48 m_textItem->setPen(pen);
53 m_textItem->setPen(pen);
49 }
54 }
50
55
51 QPen BarValue::pen() const
56 QPen BarLabel::pen() const
52 {
57 {
53 return m_textItem->pen();
58 return m_textItem->pen();
54 }
59 }
55
60
56 void BarValue::setFont(const QFont &font)
61 void BarLabel::setBrush(const QBrush &brush)
62 {
63 m_textItem->setBrush(brush);
64 }
65
66 QBrush BarLabel::brush() const
67 {
68 return m_textItem->brush();
69 }
70
71 void BarLabel::setFont(const QFont &font)
57 {
72 {
58 m_textItem->setFont(font);
73 m_textItem->setFont(font);
59 }
74 }
60
75
61 QFont BarValue::font() const
76 QFont BarLabel::font() const
62 {
77 {
63 return m_textItem->font();
78 return m_textItem->font();
64 }
79 }
65
80
66 void BarValue::setPos(qreal x, qreal y)
81 void BarLabel::setPos(qreal x, qreal y)
67 {
82 {
68 m_textItem->setPos(x,y);
83 m_textItem->setPos(x,y);
69 }
84 }
70
85
71 void BarValue::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
86 void BarLabel::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
72 {
87 {
73 Q_UNUSED(painter)
88 Q_UNUSED(painter)
74 Q_UNUSED(option)
89 Q_UNUSED(option)
75 Q_UNUSED(widget)
90 Q_UNUSED(widget)
76 }
91 }
77
92
78 QRectF BarValue::boundingRect() const
93 QRectF BarLabel::boundingRect() const
79 {
94 {
80 return m_textItem->boundingRect();
95 return m_textItem->boundingRect();
81 }
96 }
82
97
83 void BarValue::valuesVisibleChanged(bool visible)
98 void BarLabel::labelsVisibleChanged(bool visible)
84 {
99 {
85 qDebug() << "BarValue visiblle changed:" <<visible;
86 setVisible(visible);
100 setVisible(visible);
87 }
101 }
88
102
89 #include "moc_barvalue_p.cpp"
103 #include "moc_barlabel_p.cpp"
90 QTCOMMERCIALCHART_END_NAMESPACE
104 QTCOMMERCIALCHART_END_NAMESPACE
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@@ -18,8 +18,8
18 **
18 **
19 ****************************************************************************/
19 ****************************************************************************/
20
20
21 #ifndef BARVALUE_P_H
21 #ifndef BARLABEL_P_H
22 #define BARVALUE_P_H
22 #define BARLABEL_P_H
23
23
24 #include "qchartglobal.h"
24 #include "qchartglobal.h"
25 #include <QGraphicsObject>
25 #include <QGraphicsObject>
@@ -32,11 +32,11 class QBarSet;
32
32
33 // Visual class for bar values
33 // Visual class for bar values
34 // By default these are not visible.
34 // By default these are not visible.
35 class BarValue : public QGraphicsObject
35 class BarLabel : public QGraphicsObject
36 {
36 {
37 Q_OBJECT
37 Q_OBJECT
38 public:
38 public:
39 BarValue(QBarSet &set, QGraphicsItem *parent = 0);
39 BarLabel(QBarSet &barSet, QGraphicsItem *parent = 0);
40
40
41 void setText(QString str);
41 void setText(QString str);
42 QString text() const;
42 QString text() const;
@@ -44,6 +44,9 public:
44 void setPen(const QPen &pen);
44 void setPen(const QPen &pen);
45 QPen pen() const;
45 QPen pen() const;
46
46
47 void setBrush(const QBrush &brush);
48 QBrush brush() const;
49
47 void setFont(const QFont &font);
50 void setFont(const QFont &font);
48 QFont font() const;
51 QFont font() const;
49
52
@@ -54,7 +57,7 public:
54 QRectF boundingRect() const;
57 QRectF boundingRect() const;
55
58
56 public Q_SLOTS:
59 public Q_SLOTS:
57 void valuesVisibleChanged(bool visible);
60 void labelsVisibleChanged(bool visible);
58
61
59 private:
62 private:
60
63
@@ -64,4 +67,4 private:
64
67
65 QTCOMMERCIALCHART_END_NAMESPACE
68 QTCOMMERCIALCHART_END_NAMESPACE
66
69
67 #endif // BARVALUE_P_H
70 #endif // BARLABEL_P_H
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@@ -20,7 +20,7
20
20
21 #include "percentbarchartitem_p.h"
21 #include "percentbarchartitem_p.h"
22 #include "bar_p.h"
22 #include "bar_p.h"
23 #include "barvalue_p.h"
23 #include "barlabel_p.h"
24 #include "qbarset.h"
24 #include "qbarset.h"
25 #include <QDebug>
25 #include <QDebug>
26
26
@@ -58,21 +58,21 QVector<QRectF> PercentBarChartItem::calculateLayout()
58 QRectF rect(xPos, yPos-barHeight, barWidth, barHeight);
58 QRectF rect(xPos, yPos-barHeight, barWidth, barHeight);
59 layout.append(rect);
59 layout.append(rect);
60
60
61 BarValue* value = m_values.at(itemIndex);
61 BarLabel* label = m_labels.at(itemIndex);
62
62
63 if (!qFuzzyIsNull(m_series->valueAt(set,category))) {
63 if (!qFuzzyIsNull(m_series->valueAt(set,category))) {
64 int p = m_series->percentageAt(set,category) * 100;
64 int p = m_series->percentageAt(set,category) * 100;
65 QString vString(QString::number(p));
65 QString vString(QString::number(p));
66 vString.truncate(3);
66 vString.truncate(3);
67 vString.append("%");
67 vString.append("%");
68 value->setText(vString);
68 label->setText(vString);
69 } else {
69 } else {
70 value->setText(QString(""));
70 label->setText(QString(""));
71 }
71 }
72
72
73 value->setPos(xPos + (rect.width()/2 - value->boundingRect().width()/2)
73 label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2)
74 ,yPos - barHeight/2 - value->boundingRect().height()/2);
74 ,yPos - barHeight/2 - label->boundingRect().height()/2);
75 value->setPen(barSet->valuePen());
75 // value->setFont(barSet->valueFont());
76 itemIndex++;
76 itemIndex++;
77 yPos -= barHeight;
77 yPos -= barHeight;
78 }
78 }
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@@ -391,10 +391,10 QBarCategories QBarSeries::categories() const
391 return categories;
391 return categories;
392 }
392 }
393
393
394 void QBarSeries::setValuesVisible(bool visible)
394 void QBarSeries::setLabelsVisible(bool visible)
395 {
395 {
396 foreach (QBarSet* s, barSets()) {
396 foreach (QBarSet* s, barSets()) {
397 s->setValuesVisible(visible);
397 s->setLabelsVisible(visible);
398 }
398 }
399 }
399 }
400
400
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@@ -51,7 +51,7 public:
51 QList<QBarSet*> barSets() const;
51 QList<QBarSet*> barSets() const;
52 QBarCategories categories() const;
52 QBarCategories categories() const;
53
53
54 void setValuesVisible(bool visible = true);
54 void setLabelsVisible(bool visible = true);
55
55
56 bool setModel(QAbstractItemModel *model);
56 bool setModel(QAbstractItemModel *model);
57 QAbstractItemModel *modelExt() { return m_model; }
57 QAbstractItemModel *modelExt() { return m_model; }
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@@ -56,8 +56,8 QTCOMMERCIALCHART_BEGIN_NAMESPACE
56 */
56 */
57
57
58 /*!
58 /*!
59 \fn void QBarSet::setValuesVisible(bool visible = true)
59 \fn void QBarSet::setLabelssVisible(bool visible = true)
60 \brief Sets visibility of bar values. Values are visible, if parameter \a visible is true
60 \brief Sets visibility of bar labels. If \a visible is true, labels are drawn on top of barsets.
61 */
61 */
62
62
63 /*!
63 /*!
@@ -72,6 +72,7 QTCOMMERCIALCHART_BEGIN_NAMESPACE
72 QBarSet::QBarSet(QString name, QObject *parent)
72 QBarSet::QBarSet(QString name, QObject *parent)
73 : QObject(parent)
73 : QObject(parent)
74 ,m_name(name)
74 ,m_name(name)
75 ,m_labelsVisible(false)
75 {
76 {
76 }
77 }
77
78
@@ -183,27 +184,71 QBrush QBarSet::brush() const
183 }
184 }
184
185
185 /*!
186 /*!
186 Sets the pen for values that are drawn on top of this set
187 Sets pen of the values that are drawn on top of this barset
187 */
188 */
188 void QBarSet::setValuePen(const QPen &pen)
189 void QBarSet::setLabelPen(const QPen &pen)
189 {
190 {
190 m_valuePen = pen;
191 m_labelPen = pen;
192 emit valueChanged();
193 }
194
195 /*!
196 Returns pen of the values that are drawn on top of this barset
197 */
198 QPen QBarSet::labelPen() const
199 {
200 return m_labelPen;
201 }
202
203 /*!
204 Sets brush of the values that are drawn on top of this barset
205 */
206 void QBarSet::setLabelBrush(const QBrush &brush)
207 {
208 m_labelBrush = brush;
209 emit valueChanged();
210 }
211
212 /*!
213 Returns brush of the values that are drawn on top of this barset
214 */
215 QBrush QBarSet::labelBrush() const
216 {
217 return m_labelBrush;
218 }
219
220 /*!
221 Sets the pen for values that are drawn on top of this barset
222 */
223 void QBarSet::setLabelFont(const QFont &font)
224 {
225 m_labelFont = font;
226 emit valueChanged();
191 }
227 }
192
228
193 /*!
229 /*!
194 Returns the pen for values that are drawn on top of this set
230 Returns the pen for values that are drawn on top of this set
195 */
231 */
196 QPen QBarSet::valuePen() const
232 QFont QBarSet::labelFont() const
197 {
233 {
198 return m_valuePen;
234 return m_labelFont;
199 }
235 }
200
236
201 /*!
237 /*!
202 Sets the visibility of barset values to \a visible
238 Sets the visibility of barset values to \a visible
203 */
239 */
204 void QBarSet::setValuesVisible(bool visible)
240 void QBarSet::setLabelsVisible(bool visible)
241 {
242 m_labelsVisible = visible;
243 emit labelsVisibleChanged(visible);
244 }
245
246 /*!
247 Returns the visibility of values
248 */
249 bool QBarSet::labelsVisible() const
205 {
250 {
206 emit valuesVisibleChanged(visible);
251 return m_labelsVisible;
207 }
252 }
208
253
209 /*!
254 /*!
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@@ -24,6 +24,7
24 #include <qchartglobal.h>
24 #include <qchartglobal.h>
25 #include <QPen>
25 #include <QPen>
26 #include <QBrush>
26 #include <QBrush>
27 #include <QFont>
27
28
28 QTCOMMERCIALCHART_BEGIN_NAMESPACE
29 QTCOMMERCIALCHART_BEGIN_NAMESPACE
29
30
@@ -55,10 +56,17 public:
55 void setBrush(const QBrush &brush);
56 void setBrush(const QBrush &brush);
56 QBrush brush() const;
57 QBrush brush() const;
57
58
58 void setValuePen(const QPen &pen);
59 void setLabelPen(const QPen &pen);
59 QPen valuePen() const;
60 QPen labelPen() const;
60
61
61 void setValuesVisible(bool visible = true);
62 void setLabelBrush(const QBrush &brush);
63 QBrush labelBrush() const;
64
65 void setLabelFont(const QFont &font);
66 QFont labelFont() const;
67
68 void setLabelsVisible(bool visible = true);
69 bool labelsVisible() const;
62
70
63 Q_SIGNALS:
71 Q_SIGNALS:
64 void clicked(QString category, Qt::MouseButtons button); // Clicked and hover signals exposed to user
72 void clicked(QString category, Qt::MouseButtons button); // Clicked and hover signals exposed to user
@@ -69,7 +77,7 Q_SIGNALS:
69 void hoverEnter(QPoint pos);
77 void hoverEnter(QPoint pos);
70 void hoverLeave();
78 void hoverLeave();
71 void showToolTip(QPoint pos, QString tip); // Private signal
79 void showToolTip(QPoint pos, QString tip); // Private signal
72 void valuesVisibleChanged(bool visible);
80 void labelsVisibleChanged(bool visible);
73 // <--- TO PIMPL
81 // <--- TO PIMPL
74
82
75 public Q_SLOTS:
83 public Q_SLOTS:
@@ -86,7 +94,10 private:
86 QMap<QString, qreal> m_mappedValues;
94 QMap<QString, qreal> m_mappedValues;
87 QPen m_pen;
95 QPen m_pen;
88 QBrush m_brush;
96 QBrush m_brush;
89 QPen m_valuePen;
97 QPen m_labelPen;
98 QBrush m_labelBrush;
99 QFont m_labelFont;
100 bool m_labelsVisible;
90 };
101 };
91
102
92 QTCOMMERCIALCHART_END_NAMESPACE
103 QTCOMMERCIALCHART_END_NAMESPACE
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@@ -20,7 +20,7
20
20
21 #include "stackedbarchartitem_p.h"
21 #include "stackedbarchartitem_p.h"
22 #include "bar_p.h"
22 #include "bar_p.h"
23 #include "barvalue_p.h"
23 #include "barlabel_p.h"
24 #include "qbarset.h"
24 #include "qbarset.h"
25 #include <QDebug>
25 #include <QDebug>
26
26
@@ -60,25 +60,24 QVector<QRectF> StackedBarChartItem::calculateLayout()
60 for (int set=0; set < m_series->barsetCount(); set++) {
60 for (int set=0; set < m_series->barsetCount(); set++) {
61 QBarSet* barSet = m_series->barsetAt(set);
61 QBarSet* barSet = m_series->barsetAt(set);
62
62
63 qreal barHeight = barSet->valueAt(category) * scale; //m_series->valueAt(set, category) * scale;
63 qreal barHeight = barSet->valueAt(category) * scale;
64 Bar* bar = m_bars.at(itemIndex);
64 Bar* bar = m_bars.at(itemIndex);
65 bar->setPen(barSet->pen());
65 bar->setPen(barSet->pen());
66 bar->setBrush(barSet->brush());
66 bar->setBrush(barSet->brush());
67 QRectF rect(xPos, yPos-barHeight, barWidth, barHeight);
67 QRectF rect(xPos, yPos-barHeight, barWidth, barHeight);
68 layout.append(rect);
68 layout.append(rect);
69
69
70 BarValue* value = m_values.at(itemIndex);
70 BarLabel* label = m_labels.at(itemIndex);
71
71
72 if (!qFuzzyIsNull(barSet->valueAt(category))) {
72 if (!qFuzzyIsNull(barSet->valueAt(category))) {
73 value->setText(QString::number(barSet->valueAt(category)));
73 label->setText(QString::number(barSet->valueAt(category)));
74 } else {
74 } else {
75 value->setText(QString(""));
75 label->setText(QString(""));
76 }
76 }
77
77
78 value->setPos(xPos + (rect.width()/2 - value->boundingRect().width()/2)
78 label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2)
79 ,yPos - barHeight/2 - value->boundingRect().height()/2);
79 ,yPos - barHeight/2 - label->boundingRect().height()/2);
80 value->setPen(barSet->valuePen());
80 // value->setFont(barSet->valueFont());
81
82 itemIndex++;
81 itemIndex++;
83 yPos -= barHeight;
82 yPos -= barHeight;
84 }
83 }
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@@ -183,9 +183,9 void ChartTheme::decorate(QBarSeries* series, int index, bool force)
183 // Pick label color from the opposite end of the gradient.
183 // Pick label color from the opposite end of the gradient.
184 // 0.3 as a boundary seems to work well.
184 // 0.3 as a boundary seems to work well.
185 if (takeAtPos < 0.3)
185 if (takeAtPos < 0.3)
186 sets.at(i)->setValuePen(colorAt(m_seriesGradients.at(index % m_seriesGradients.size()), 1));
186 sets.at(i)->setLabelBrush(colorAt(m_seriesGradients.at(index % m_seriesGradients.size()), 1));
187 else
187 else
188 sets.at(i)->setValuePen(colorAt(m_seriesGradients.at(index % m_seriesGradients.size()), 0));
188 sets.at(i)->setLabelBrush(colorAt(m_seriesGradients.at(index % m_seriesGradients.size()), 0));
189
189
190 if (pen == sets.at(i)->pen() || force) {
190 if (pen == sets.at(i)->pen() || force) {
191 QColor c = colorAt(m_seriesGradients.at(index % m_seriesGradients.size()), 0.0);
191 QColor c = colorAt(m_seriesGradients.at(index % m_seriesGradients.size()), 0.0);
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