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QWT API (中文) 7.0.1
Qt绘图库 - 中文API文档
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QwtPlotPanner 提供绘图画布的平移功能 更多...
#include <qwt_plot_panner.h>
类 | |
| class | PrivateData |
Public 槽 | |
| void | moveCanvas (int dx, int dy) |
| 按指定偏移移动画布 | |
Public 槽 继承自 QwtPicker | |
| void | setEnabled (bool) |
| 启用或禁用选择器 | |
信号 | |
| void | panned (int dx, int dy) |
| 画布平移后发出的信号 | |
信号 继承自 QwtPicker | |
| void | activated (bool on) |
| 当选择器被激活时发出的信号 | |
| void | selected (const QPolygon &polygon) |
| 在选择结束时发出选定点的信号 | |
| void | appended (const QPoint &pos) |
| 当一个点被添加到选择时发出的信号 | |
| void | moved (const QPoint &pos) |
| 当选择的最后一个添加点被移动时发出的信号 | |
| void | removed (const QPoint &pos) |
| 当选择的最后一个添加点被移除时发出的信号 | |
| void | changed (const QPolygon &selection) |
| 当活动选择被更改时发出的信号 | |
Public 成员函数 | |
| QwtPlotPanner (QWidget *canvas) | |
| 构造函数 | |
| QWidget * | canvas () |
| 获取画布控件 | |
| const QWidget * | canvas () const |
| 获取画布控件(常量版本) | |
| QwtPlot * | plot () |
| 获取绘图控件 | |
| const QwtPlot * | plot () const |
| 获取绘图控件(常量版本) | |
| void | setOrientations (Qt::Orientations) |
| 设置平移方向 | |
| Qt::Orientations | orientations () const |
| 获取平移方向 | |
| bool | isOrientationEnabled (Qt::Orientation) const |
| 检查某个方向是否启用 | |
| void | setMouseButton (Qt::MouseButton button, Qt::KeyboardModifiers modifiers=Qt::NoModifier) |
| 设置平移使用的鼠标按键和修饰键 | |
| void | getMouseButton (Qt::MouseButton &button, Qt::KeyboardModifiers &modifiers) const |
| 获取平移使用的鼠标按键和修饰键 | |
Public 成员函数 继承自 QwtPicker | |
| QwtPicker (QWidget *parent) | |
| 构造函数 | |
| QwtPicker (RubberBand rubberBand, DisplayMode trackerMode, QWidget *) | |
| void | setStateMachine (QwtPickerMachine *) |
| 设置状态机并删除前一个 | |
| const QwtPickerMachine * | stateMachine () const |
| 返回分配的状态机(const) | |
| QwtPickerMachine * | stateMachine () |
| 返回分配的状态机 | |
| void | setRubberBand (RubberBand) |
| 设置橡皮筋样式 | |
| RubberBand | rubberBand () const |
| 返回橡皮筋样式 | |
| void | setTrackerMode (DisplayMode) |
| 设置追踪器的显示模式 | |
| DisplayMode | trackerMode () const |
| 返回追踪器显示模式 | |
| void | setResizeMode (ResizeMode) |
| 设置调整大小模式 | |
| ResizeMode | resizeMode () const |
| 返回调整大小模式 | |
| void | setRubberBandPen (const QPen &) |
| 设置橡皮筋的画笔 | |
| QPen | rubberBandPen () const |
| 返回橡皮筋画笔 | |
| void | setTrackerPen (const QPen &) |
| 设置追踪器的画笔 | |
| QPen | trackerPen () const |
| 返回追踪器画笔 | |
| void | setTrackerFont (const QFont &) |
| 设置追踪器的字体 | |
| QFont | trackerFont () const |
| 返回追踪器字体 | |
| bool | isEnabled () const |
| 启用时返回 true,否则返回 false | |
| bool | isActive () const |
| 选择器在 begin() 和 end() 之间处于活动状态 | |
| virtual bool | eventFilter (QObject *, QEvent *) override |
| 处理事件的事件过滤器 | |
| QWidget * | parentWidget () |
| 返回发生选择的父控件 | |
| const QWidget * | parentWidget () const |
| 返回发生选择的父控件(const) | |
| virtual QPainterPath | pickArea () const |
| 找到观察部件上可能发生选择的区域 | |
| virtual void | drawRubberBand (QPainter *) const |
| 根据橡皮筋样式绘制橡皮筋 | |
| virtual void | drawTracker (QPainter *) const |
| 绘制追踪器 | |
| virtual QRegion | trackerMask () const |
| 计算追踪器覆盖层的掩码 | |
| virtual QRegion | rubberBandMask () const |
| 计算橡皮筋覆盖层的掩码 | |
| virtual QwtText | trackerText (const QPoint &pos) const |
| 返回位置的标签 | |
| virtual QRect | trackerRect (const QFont &) const |
| 从追踪器当前位置计算追踪器文本的边界矩形 | |
| virtual void | setTrackerPosition (const QPoint &pos) |
| 手动设置追踪器位置 | |
| QPoint | trackerPosition () const |
| 返回追踪器的当前位置 | |
| QPolygon | selection () const |
| 返回选定的点 | |
| void | update () |
| void | setActive (bool on) |
Public 成员函数 继承自 QwtEventPattern | |
| QwtEventPattern () | |
| 构造函数 | |
| virtual | ~QwtEventPattern () |
| 析构函数 | |
| void | initMousePattern (int numButtons) |
| 根据鼠标按钮数量设置默认鼠标模式 | |
| void | initKeyPattern () |
| 设置默认按键模式 | |
| void | setMousePattern (MousePatternCode, Qt::MouseButton button, Qt::KeyboardModifiers=Qt::NoModifier) |
| 更改一个鼠标模式 | |
| void | setKeyPattern (KeyPatternCode, int key, Qt::KeyboardModifiers modifiers=Qt::NoModifier) |
| 更改一个按键模式 | |
| void | setMousePattern (const QVector< MousePattern > &) |
| 更改鼠标事件模式 | |
| void | setKeyPattern (const QVector< KeyPattern > &) |
| 更改按键事件模式 | |
| const QVector< MousePattern > & | mousePattern () const |
| 返回鼠标模式向量 | |
| const QVector< KeyPattern > & | keyPattern () const |
| 返回按键模式向量 | |
| QVector< MousePattern > & | mousePattern () |
| 返回鼠标模式向量 | |
| QVector< KeyPattern > & | keyPattern () |
| 返回按键模式向量 | |
| bool | mouseMatch (MousePatternCode, const QMouseEvent *) const |
| 将鼠标事件与事件模式进行比较 | |
| bool | keyMatch (KeyPatternCode, const QKeyEvent *) const |
| 将按键事件与事件模式进行比较 | |
Protected 成员函数 | |
| virtual void | widgetMousePressEvent (QMouseEvent *mouseEvent) override |
| Handle mouse press events | |
| virtual void | move (const QPoint &) override |
| Move the selection | |
| virtual bool | end (bool ok=true) override |
| End the panning operation | |
Protected 成员函数 继承自 QwtPicker | |
| virtual QPolygon | adjustedPoints (const QPolygon &) const |
| 将 pickedPoints() 映射为 selection() | |
| virtual void | transition (const QEvent *) |
| Passes an event to the state machine and executes the resulting commands. | |
| virtual void | begin () |
| Open a selection setting the state to active | |
| virtual void | append (const QPoint &) |
| Append a point to the selection and update rubber band and tracker. | |
| virtual void | remove () |
| Remove the last point of the selection The removed() signal is emitted. | |
| virtual bool | accept (QPolygon &) const |
| Validate and fix up the selection | |
| virtual void | reset () |
| Reset the state machine and terminate ( end(false) ) the selection | |
| virtual void | widgetMouseReleaseEvent (QMouseEvent *) |
| Handle a mouse release event for the observed widget. | |
| virtual void | widgetMouseDoubleClickEvent (QMouseEvent *) |
| Handle mouse double click event for the observed widget. | |
| virtual void | widgetMouseMoveEvent (QMouseEvent *) |
| Handle a mouse move event for the observed widget. | |
| virtual void | widgetWheelEvent (QWheelEvent *) |
| Handle a wheel event for the observed widget. | |
| virtual void | widgetKeyPressEvent (QKeyEvent *) |
| Handle a key press event for the observed widget. | |
| virtual void | widgetKeyReleaseEvent (QKeyEvent *) |
| Handle a key release event for the observed widget. | |
| virtual void | widgetEnterEvent (QEvent *) |
| Handle a enter event for the observed widget. | |
| virtual void | widgetLeaveEvent (QEvent *) |
| Handle a leave event for the observed widget. | |
| virtual void | stretchSelection (const QSize &oldSize, const QSize &newSize) |
| Scale the selection by the ratios of oldSize and newSize The changed() signal is emitted. | |
| virtual void | updateDisplay () |
| Update the state of rubber band and tracker label | |
| const QwtWidgetOverlay * | rubberBandOverlay () const |
| 返回显示橡皮筋的覆盖层 | |
| const QwtWidgetOverlay * | trackerOverlay () const |
| 返回显示追踪器文本的覆盖层 | |
| const QPolygon & | pickedPoints () const |
| 返回到目前为止收集的点 | |
Protected 成员函数 继承自 QwtEventPattern | |
| virtual bool | mouseMatch (const MousePattern &, const QMouseEvent *) const |
| Compare a mouse event with an event pattern. | |
| virtual bool | keyMatch (const KeyPattern &, const QKeyEvent *) const |
| Compare a key event with an event pattern. | |
额外继承的成员函数 | |
Public 类型 继承自 QwtPicker | |
| enum | RubberBand { NoRubberBand = 0 , HLineRubberBand , VLineRubberBand , CrossRubberBand , RectRubberBand , EllipseRubberBand , PolygonRubberBand , UserRubberBand = 100 } |
| 橡皮筋样式 更多... | |
| enum | DisplayMode { AlwaysOff , AlwaysOn , ActiveOnly } |
| 显示模式 更多... | |
| enum | ResizeMode { Stretch , KeepSize } |
| 控制当观察部件调整大小时对选定点的处理方式 更多... | |
Public 类型 继承自 QwtEventPattern | |
| enum | MousePatternCode { MouseSelect1 , MouseSelect2 , MouseSelect3 , MouseSelect4 , MouseSelect5 , MouseSelect6 , MousePatternCount } |
| Symbolic mouse input codes 更多... | |
| enum | KeyPatternCode { KeySelect1 , KeySelect2 , KeyAbort , KeyLeft , KeyRight , KeyUp , KeyDown , KeyRedo , KeyUndo , KeyHome , KeyPatternCount } |
| Symbolic keyboard input codes 更多... | |
属性 继承自 QwtPicker | |
| bool | isEnabled |
| ResizeMode | resizeMode |
| DisplayMode | trackerMode |
| QPen | trackerPen |
| QFont | trackerFont |
| RubberBand | rubberBand |
| QPen | rubberBandPen |
QwtPlotPanner 提供绘图画布的平移功能
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explicit |
构造函数
| QWidget * QwtPlotPanner::canvas | ( | ) |
获取画布控件
| const QWidget * QwtPlotPanner::canvas | ( | ) | const |
获取画布控件(常量版本)
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overrideprotectedvirtual |
End the panning operation
重载 QwtPicker .
| void QwtPlotPanner::getMouseButton | ( | Qt::MouseButton & | button, |
| Qt::KeyboardModifiers & | modifiers | ||
| ) | const |
获取平移使用的鼠标按键和修饰键
| bool QwtPlotPanner::isOrientationEnabled | ( | Qt::Orientation | o | ) | const |
检查某个方向是否启用
|
overrideprotectedvirtual |
Move the selection
重载 QwtPicker .
|
slot |
按指定偏移移动画布
| Qt::Orientations QwtPlotPanner::orientations | ( | ) | const |
获取平移方向
|
signal |
画布平移后发出的信号
| QwtPlot * QwtPlotPanner::plot | ( | ) |
获取绘图控件
| const QwtPlot * QwtPlotPanner::plot | ( | ) | const |
获取绘图控件(常量版本)
| void QwtPlotPanner::setMouseButton | ( | Qt::MouseButton | button, |
| Qt::KeyboardModifiers | modifiers = Qt::NoModifier |
||
| ) |
设置平移使用的鼠标按键和修饰键
| void QwtPlotPanner::setOrientations | ( | Qt::Orientations | o | ) |
设置平移方向
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overrideprotectedvirtual |
Handle mouse press events
重载 QwtPicker .