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document all drag and drop

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This commit is contained in:
Marco Martin 2012-01-10 13:32:41 +01:00
parent 0b17c0227a
commit 54c6d73c20
4 changed files with 185 additions and 51 deletions
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51
declarativeimports/draganddrop/DeclarativeDragArea.h
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@ -31,14 +31,49 @@ class DeclarativeMimeData;
class DeclarativeDragArea : public QDeclarativeItem
{
Q_OBJECT
Q_PROPERTY(QDeclarativeComponent* delegate READ delegate WRITE setDelegate NOTIFY delegateChanged RESET resetDelegate)
Q_PROPERTY(QDeclarativeItem* source READ source WRITE setSource NOTIFY sourceChanged RESET resetSource)
Q_PROPERTY(QDeclarativeItem* target READ source NOTIFY targetChanged)
Q_PROPERTY(DeclarativeMimeData* mimeData READ mimeData CONSTANT)
Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged) //TODO: Should call setAcceptDrops()
Q_PROPERTY(Qt::DropActions supportedActions READ supportedActions WRITE setSupportedActions NOTIFY supportedActionsChanged)
Q_PROPERTY(Qt::DropAction defaultAction READ defaultAction WRITE setDefaultAction NOTIFY defaultActionChanged)
Q_OBJECT
/**
* The delegate is the item that will be displayed next to the mouse cursor during the drag and drop operation.
* It usually consists of a large, semi-transparent icon representing the data being dragged.
*/
Q_PROPERTY(QDeclarativeComponent* delegate READ delegate WRITE setDelegate NOTIFY delegateChanged RESET resetDelegate)
/**
* The QML element that is the source of the resulting drag and drop operation. This can be defined to any item, and will
* be available to the DropArea as event.data.source
*/
Q_PROPERTY(QDeclarativeItem* source READ source WRITE setSource NOTIFY sourceChanged RESET resetSource)
//TODO: to be implemented
Q_PROPERTY(QDeclarativeItem* target READ source NOTIFY targetChanged)
/**
* the mime data of the drag operation
* @see DeclarativeMimeData
*/
Q_PROPERTY(DeclarativeMimeData* mimeData READ mimeData CONSTANT)
/**
* If false no drag operation will be generate
*/
Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged) //TODO: Should call setAcceptDrops()
/**
* Supported operations, a combination of
* Qt.CopyAction
* Qt.MoveAction
* Qt.LinkAction
* Qt.ActionMask
* Qt.IgnoreAction
* Qt.TargetMoveAction
*/
Q_PROPERTY(Qt::DropActions supportedActions READ supportedActions WRITE setSupportedActions NOTIFY supportedActionsChanged)
/**
* The default action will be performed during a drag when no modificators are pressed.
*/
Q_PROPERTY(Qt::DropAction defaultAction READ defaultAction WRITE setDefaultAction NOTIFY defaultActionChanged)
public:

101
declarativeimports/draganddrop/DeclarativeDragDropEvent.h
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@ -30,37 +30,90 @@
class DeclarativeDragDropEvent : public QObject
{
Q_OBJECT
Q_PROPERTY(int x READ x)
Q_PROPERTY(int y READ y)
Q_PROPERTY(int buttons READ buttons)
Q_PROPERTY(int modifiers READ modifiers)
Q_PROPERTY(DeclarativeMimeData* mimeData READ mimeData)
Q_PROPERTY(Qt::DropActions possibleActions READ possibleActions)
Q_PROPERTY(Qt::DropAction proposedAction READ proposedAction)
Q_OBJECT
/**
* The mouse X position of the event relative to the view that sent the event.
*/
Q_PROPERTY(int x READ x)
/**
* The mouse Y position of the event relative to the view that sent the event.
*/
Q_PROPERTY(int y READ y)
/**
* The pressed mouse buttons.
* A combination of:
* Qt.NoButton The button state does not refer to any button (see QMouseEvent::button()).
* Qt.LeftButton The left button is pressed, or an event refers to the left button. (The left button may be the right button on left-handed mice.)
* Qt.RightButton The right button.
* Qt.MidButton The middle button.
* Qt.MiddleButton MidButton The middle button.
* Qt.XButton1 The first X button.
* Qt.XButton2 The second X button.
*/
Q_PROPERTY(int buttons READ buttons)
/**
* Pressed keyboard modifiers, a combination of:
* Qt.NoModifier No modifier key is pressed.
* Qt.ShiftModifier A Shift key on the keyboard is pressed.
* Qt.ControlModifier A Ctrl key on the keyboard is pressed.
* Qt.AltModifier An Alt key on the keyboard is pressed.
* Qt.MetaModifier A Meta key on the keyboard is pressed.
* Qt.KeypadModifier A keypad button is pressed.
* Qt.GroupSwitchModifier X11 only. A Mode_switch key on the keyboard is pressed.
*/
Q_PROPERTY(int modifiers READ modifiers)
/**
* The mime data of this operation
* @see DeclarativeMimeData
*/
Q_PROPERTY(DeclarativeMimeData* mimeData READ mimeData)
/**
* The possible different kind of action that can be done in the drop, is a combination of:
* Qt.CopyAction 0x1 Copy the data to the target.
* Qt.MoveAction 0x2 Move the data from the source to the target.
* Qt.LinkAction 0x4 Create a link from the source to the target.
* Qt.ActionMask 0xff
* Qt.IgnoreAction 0x0 Ignore the action (do nothing with the data).
* Qt.TargetMoveAction 0x8002 On Windows, this value is used when the ownership of the D&D data should be taken over by the target application, i.e., the source application should not delete the data.
* On X11 this value is used to do a move.
* TargetMoveAction is not used on the Mac.
*/
Q_PROPERTY(Qt::DropActions possibleActions READ possibleActions)
/**
* Default action
* @see possibleActions
*/
Q_PROPERTY(Qt::DropAction proposedAction READ proposedAction)
public:
DeclarativeDragDropEvent(QGraphicsSceneDragDropEvent* e, QObject* parent = 0);
DeclarativeDragDropEvent(QGraphicsSceneDragDropEvent* e, QObject* parent = 0);
int x() const { return m_x; }
int y() const { return m_y; }
int buttons() const { return m_buttons; }
int modifiers() const { return m_modifiers; }
DeclarativeMimeData* mimeData() { return &m_data; }
Qt::DropAction proposedAction() const { return m_event->proposedAction(); }
Qt::DropActions possibleActions() const { return m_event->possibleActions(); }
int x() const { return m_x; }
int y() const { return m_y; }
int buttons() const { return m_buttons; }
int modifiers() const { return m_modifiers; }
DeclarativeMimeData* mimeData() { return &m_data; }
Qt::DropAction proposedAction() const { return m_event->proposedAction(); }
Qt::DropActions possibleActions() const { return m_event->possibleActions(); }
public slots:
void accept(int action);
public Q_SLOTS:
void accept(int action);
private:
int m_x;
int m_y;
Qt::MouseButtons m_buttons;
Qt::KeyboardModifiers m_modifiers;
DeclarativeMimeData m_data;
QGraphicsSceneDragDropEvent* m_event;
int m_x;
int m_y;
Qt::MouseButtons m_buttons;
Qt::KeyboardModifiers m_modifiers;
DeclarativeMimeData m_data;
QGraphicsSceneDragDropEvent* m_event;
};
#endif // DECLARATIVEDRAGDROPEVENT_H

50
declarativeimports/draganddrop/DeclarativeDropArea.h
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@ -30,27 +30,49 @@ class DeclarativeDragDropEvent;
class DeclarativeDropArea : public QDeclarativeItem
{
Q_OBJECT
Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged)
Q_OBJECT
/**
* If false the area will receive no drop events
*/
Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged)
public:
DeclarativeDropArea(QDeclarativeItem *parent=0);
bool isEnabled() const;
void setEnabled(bool enabled);
DeclarativeDropArea(QDeclarativeItem *parent=0);
bool isEnabled() const;
void setEnabled(bool enabled);
signals:
void dragEnter(DeclarativeDragDropEvent* event);
void dragLeave(DeclarativeDragDropEvent* event);
void drop(DeclarativeDragDropEvent* event);
void enabledChanged();
Q_SIGNALS:
/**
* Emitted when the mouse cursor dragging something enters in the drag area
* @arg DeclarativeDragDropEvent description of the dragged content
* @see DeclarativeDragDropEvent
*/
void dragEnter(DeclarativeDragDropEvent* event);
/**
* Emitted when the mouse cursor dragging something leaves the drag area
* @arg DeclarativeDragDropEvent description of the dragged content
* @see DeclarativeDragDropEvent
*/
void dragLeave(DeclarativeDragDropEvent* event);
/**
* Emitted when the user drops something in the area
* @arg DeclarativeDragDropEvent description of the dragged content
* @see DeclarativeDragDropEvent
*/
void drop(DeclarativeDragDropEvent* event);
void enabledChanged();
protected:
void dragEnterEvent(QGraphicsSceneDragDropEvent *event);
void dragLeaveEvent(QGraphicsSceneDragDropEvent *event);
void dropEvent(QGraphicsSceneDragDropEvent *event);
void dragEnterEvent(QGraphicsSceneDragDropEvent *event);
void dragLeaveEvent(QGraphicsSceneDragDropEvent *event);
void dropEvent(QGraphicsSceneDragDropEvent *event);
private:
bool m_enabled;
bool m_enabled;
};
#endif

34
declarativeimports/draganddrop/DeclarativeMimeData.h
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@ -33,12 +33,36 @@ class DeclarativeMimeData : public QMimeData
{
Q_OBJECT
Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
Q_PROPERTY(QString html READ html WRITE setHtml NOTIFY htmlChanged)
Q_PROPERTY(QUrl url READ url WRITE setUrl NOTIFY urlChanged)
/**
* A plain text (MIME type text/plain) representation of the data.
*/
Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
/**
* A string if the data stored in the object is HTML (MIME type text/html); otherwise returns an empty string.
*/
Q_PROPERTY(QString html READ html WRITE setHtml NOTIFY htmlChanged)
/**
* Url contained in the mimedata
*/
Q_PROPERTY(QUrl url READ url WRITE setUrl NOTIFY urlChanged)
/**
* A list of URLs contained within the MIME data object.
* URLs correspond to the MIME type text/uri-list.
*/
Q_PROPERTY(QVariantList urls READ urls WRITE setUrls NOTIFY urlsChanged)
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
Q_PROPERTY(QDeclarativeItem* source READ source WRITE setSource NOTIFY sourceChanged)
/**
* A color if the data stored in the object represents a color (MIME type application/x-color); otherwise QColor().
*/
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
/**
* The graphical item on the scene that started the drag event. It may be null.
*/
Q_PROPERTY(QDeclarativeItem* source READ source WRITE setSource NOTIFY sourceChanged)
//TODO: Image property
public: