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Reference documentation
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Reference documentation
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The AbstractChart class provides an abstract base for every chart view. More...
Public Slots | |
| void | updateValues () |
| Updates the displayed data in the viewport. More... | |
 Public Slots inherited from AbstractItemView | |
| virtual void | updateValues ()=0 |
| Updates the items in the item view. More... | |
Public Member Functions | |
| AbstractChart (QWidget *parent=0) | |
Initializes a chart view with the given parent. More... | |
| ~AbstractChart () | |
| Destructs the object and clean the internal components. | |
| virtual QModelIndex | indexAt (const QPoint &point) const |
| Returns the model index of the item at the viewport coordinates point. | |
| ChartLegend * | legend () const |
Returns the current ChartLegend used to paint the chart legend. | |
| void | setLegend (ChartLegend *legend) |
Sets the legend used to paint the chart legend. More... | |
| void | setTitle (const QString &title) |
| Sets the title displayed at the bottom. | |
| void | setTitleFont (const QFont &font) |
Sets the QFont used to write the title. More... | |
| const QFont & | titleFont () const |
Returns the QFont used to write the title. More... | |
| Public Member Functions inherited from AbstractItemView | |
| AbstractItemView (QWidget *parent=0) | |
| Constructs an abstract item view with the given parent. | |
| virtual QRectF | itemRect (const QModelIndex &index) const |
| Defines the outer bounds of the item as a rectangle. More... | |
| virtual QRectF | itemRect (int row, int column, const QModelIndex &parent=QModelIndex()) const |
| This function overloads itemRect(). More... | |
Protected Member Functions | |
| void | calculateLegendRect (const QRect &source) |
| Calculates the rectangle in which the legend should be drawn. | |
| virtual void | defineRects ()=0 |
This pure virtual function defines the QRect used to to draw the different elements composing the view (series, legend, title, etc.). | |
| virtual QPainterPath | itemPath (const QModelIndex &index) const |
Returns the QPainterPath defining the item's shape. | |
| virtual void | paintChart (QPainter &painter)=0 |
| Paints the different parts (legend, axis, values, title, etc.) of the chart. More... | |
| virtual void | process () |
| Analyzes the model to define the bounds and axis values. More... | |
| virtual void | updateRects ()=0 |
| Updates the regions used to paint each part of the chart (legend, axis, values, title, etc.). More... | |
The AbstractChart class provides an abstract base for every chart view.
The AbstractChart class provides the basic functionality for every chart view. It is a abstract class and cannot be instancied itself. AbstractChart provides a standard interface based on Thistle::AbstractItemView. It reimplements basic logic for calculating and analizing the model data.
| AbstractChart | ( | QWidget * | parent = 0 | ) |
Initializes a chart view with the given parent.
The AbstractChart is an abstract class and cannot be instancied itself.
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protectedpure virtual |
Paints the different parts (legend, axis, values, title, etc.) of the chart.
This function is called when the viewport is updated.
Implemented in LinearChart, PieChart, PieChart3D, AxisChart, and RadialChart.
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protectedvirtual |
Analyzes the model to define the bounds and axis values.
Calculates the different areas of the chart (title, legend, etc.).
| void setLegend | ( | ChartLegend * | legend | ) |
Sets the legend used to paint the chart legend.
The previous ChartLegend will be destroyed.
| void setTitleFont | ( | const QFont & | font | ) |
Sets the QFont used to write the title.
| const QFont & titleFont | ( | ) | const |
Returns the QFont used to write the title.
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protectedpure virtual |
Updates the regions used to paint each part of the chart (legend, axis, values, title, etc.).
This function is called whenever the view has been resized.
Implemented in PieChart, LinearChart, RadarChart, and RadialChart.
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slot |
Updates the displayed data in the viewport.
This method should be called when the widget has been resized or the model data has changed.
1.8.6