| @@ -60,6 +60,7 void LineChartItem::updateGeometry() | |||
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60 | 60 | if (m_points.size() == 0) { |
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61 | 61 | prepareGeometryChange(); |
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62 | 62 | m_path = QPainterPath(); |
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63 | m_linePath = QPainterPath(); | |
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63 | 64 | m_rect = QRect(); |
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64 | 65 | return; |
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65 | 66 | } |
| @@ -70,6 +71,7 void LineChartItem::updateGeometry() | |||
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70 | 71 | |
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71 | 72 | int size = m_linePen.width(); |
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72 | 73 | linePath.addEllipse(m_points.at(0), size, size); |
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74 | linePath.moveTo(m_points.at(0)); | |
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73 | 75 | for (int i = 1; i < m_points.size(); i++) { |
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74 | 76 | linePath.lineTo(m_points.at(i)); |
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75 | 77 | linePath.addEllipse(m_points.at(i), size, size); |
| @@ -100,10 +102,17 void LineChartItem::updateGeometry() | |||
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100 | 102 | |
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101 | 103 | void LineChartItem::handleUpdated() |
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102 | 104 | { |
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105 | // If points visiblity has changed, a geometry update is needed. | |
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106 | // Also, if pen changes when points are visible, geometry update is needed. | |
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107 | bool doGeometryUpdate = | |
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108 | (m_pointsVisible != m_series->pointsVisible()) | |
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109 | || (m_series->pointsVisible() && (m_linePen != m_series->pen())); | |
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103 | 110 | setVisible(m_series->isVisible()); |
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104 | 111 | setOpacity(m_series->opacity()); |
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105 | 112 | m_pointsVisible = m_series->pointsVisible(); |
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106 | 113 | m_linePen = m_series->pen(); |
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114 | if (doGeometryUpdate) | |
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115 | updateGeometry(); | |
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107 | 116 | update(); |
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108 | 117 | } |
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109 | 118 | |
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