OpSelectorDragBox Class Reference

This operation is started when the user does a drag over the document, that started in empty space. A drag box will be drawn out over the document as the user moves the mouse about and when the drag ends, all the objects wholly inside the box will be selected. More...

#include <selector.h>

Inheritance diagram for OpSelectorDragBox:

List of all members.

Public Member Functions
	OpSelectorDragBox ()
	Constructor. This simply sets a few of the operation flags.
void	StartDragBox (Spread *pSpread, DocCoord Anchor, ClickModifiers)
	This is called when a Drag operation has been detected.
virtual BOOL	SnappingDrag ()
virtual void	DragPointerMove (DocCoord, ClickModifiers, Spread *, BOOL bSolidDrag)
	This is called every time the mouse moves, during a drag. All it really does is update the EORed bounding box.
virtual void	DragFinished (DocCoord, ClickModifiers, Spread *, BOOL, BOOL bSolidDrag)
	This is called when a drag operation finishes. This removes the EORed drag rect from the screen and then selects all the objects that were in it.
void	RenderDragBlobs (DocRect, Spread *, BOOL bSolidDrag)
	EORs a rectangle onto the screen to mark out the size of the current selection.
Static Public Member Functions
static BOOL	Declare ()
	Adds the operation to the list of all known operations.
static OpState	GetState (String_256 *Description, OpDescriptor *)
	Find out the state of the operation at the specific time.
Private Member Functions
	CC_DECLARE_DYNCREATE (OpSelectorDragBox)
Private Attributes
Spread *	StartSpread
DocCoord	StartPoint
DocCoord	LastMousePosition

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Detailed Description

This operation is started when the user does a drag over the document, that started in empty space. A drag box will be drawn out over the document as the user moves the mouse about and when the drag ends, all the objects wholly inside the box will be selected.

Author:

Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>

Date:

1/7/93

Definition at line 132 of file selector.h.

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Constructor & Destructor Documentation

OpSelectorDragBox::OpSelectorDragBox (   )

Constructor. This simply sets a few of the operation flags. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 20/7/93 Definition at line 5742 of file selector.cpp. { // Empty. }

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Member Function Documentation

OpSelectorDragBox::CC_DECLARE_DYNCREATE (  OpSelectorDragBox   )  [private]

BOOL OpSelectorDragBox::Declare (   )  [static]

Adds the operation to the list of all known operations. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 5/7/93 Returns: TRUE if all went OK, False otherwise Reimplemented in OpSliceDragBox. Definition at line 5930 of file selector.cpp. { return RegisterOpDescriptor(0, _R(IDS_SELECTOR_BOX), CC_RUNTIME_CLASS(OpSelectorDragBox), OPTOKEN_SELECTOR_DRAGBOX, OpSelectorDragBox::GetState); }

void OpSelectorDragBox::DragFinished (  DocCoord  PointerPos, ClickModifiers  ClickMods, Spread *  Spread, BOOL  Success, BOOL  bSolidDrag )  [virtual]

This is called when a drag operation finishes. This removes the EORed drag rect from the screen and then selects all the objects that were in it. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 5/7/93 Parameters: PointerPos  - The position of the mouse at the end of the drag [INPUTS] ClickMods - the key modifiers being pressed Success - TRUE if the drag was terminated properly, FALSE if it was ended with the escape key being pressed See also: ClickModifiers Reimplemented from Operation. Reimplemented in OpSliceDragBox. Definition at line 5829 of file selector.cpp. { // Build the rectangle of the drag box at the end of the drag DocRect BoundingRect(MIN(StartPoint.x, LastMousePosition.x), MIN(StartPoint.y, LastMousePosition.y), MAX(StartPoint.x, LastMousePosition.x), MAX(StartPoint.y, LastMousePosition.y)); // First Rub out the old box RenderDragBlobs(BoundingRect, StartSpread, bSolidDrag); // Put the hourglass up BeginSlowJob(); // Go and try and select a few things if (Success) { // If we didn't drag with the right button then deselect everything prior to selecting // the "lasso-ed" objects, and remember to restore the rotation centre to the middle of // the selection. if (!ClickMods.Adjust) { NodeRenderableInk::DeselectAll(); ((SelectorTool*) Tool::GetCurrent())->InvalidateRotationCentre(); } // Select the objects in the BoundingRect NodeRenderableInk::SelectAllInRect(BoundingRect, Spread, NodeRenderableInk::SET); /* // This old code makes right-button marquee consistent with the right-button selection toggle. // Unfortunately Charles & Burns don't like it (this week). NodeRenderableInk::SelectAllInRect(BoundingRect, Spread, ClickMods.Adjust ? NodeRenderableInk::SelStateAction::TOGGLE : NodeRenderableInk::SelStateAction::SET); */ // Reenable the tool's idle processing. SelectorTool::AllowIdleWork(TRUE); // End the Drag if (!EndDrag()) FailAndExecute(); } else { // Reenable the tool's idle processing. SelectorTool::AllowIdleWork(TRUE); // Set up the flags that say it all went wrong. EndDrag(); FailAndExecute(); } // Final end of the operation. End(); }

void OpSelectorDragBox::DragPointerMove (  DocCoord  PointerPos, ClickModifiers  ClickMods, Spread *  pSpread, BOOL  bSolidDrag )  [virtual]

This is called every time the mouse moves, during a drag. All it really does is update the EORed bounding box. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 5/7/93 Parameters: PointerPos  - The current position of the mouse in Doc Coords [INPUTS] ClickMods - Which key modifiers are being pressed See also: ClickModifiers Reimplemented from Operation. Definition at line 5788 of file selector.cpp. { // First Rub out the old box DocRect Rect = DocRect(MIN(StartPoint.x, LastMousePosition.x), MIN(StartPoint.y, LastMousePosition.y), MAX(StartPoint.x, LastMousePosition.x), MAX(StartPoint.y, LastMousePosition.y)); RenderDragBlobs(Rect, StartSpread, bSolidDrag); // Update the box and draw in the new one if (pSpread != StartSpread) { PointerPos = MakeRelativeToSpread(StartSpread, pSpread, PointerPos); } LastMousePosition = PointerPos; Rect = DocRect(MIN(StartPoint.x, LastMousePosition.x), MIN(StartPoint.y, LastMousePosition.y), MAX(StartPoint.x, LastMousePosition.x), MAX(StartPoint.y, LastMousePosition.y)); RenderDragBlobs(Rect, StartSpread, bSolidDrag); }

OpState OpSelectorDragBox::GetState (  String_256 *  Description, OpDescriptor *  )  [static]

Find out the state of the operation at the specific time. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 5/7/93 Parameters: Description  - GetState fills this string with an approriate description [OUTPUTS] of the current state of the selector tool Returns: The state of the operation, so that menu items (ticks and greying can be done properly Reimplemented in OpSliceDragBox. Definition at line 5950 of file selector.cpp. { OpState Blobby; return Blobby; }

void OpSelectorDragBox::RenderDragBlobs (  DocRect  Rect, Spread *  pSpread, BOOL  bSolidDrag )  [virtual]

EORs a rectangle onto the screen to mark out the size of the current selection. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 6/9/93 Reimplemented from Operation. Definition at line 5897 of file selector.cpp. { RenderRegion* pRegion = DocView::RenderOnTop(&Rect, pSpread, ClippedEOR); while (pRegion) { // Set the line colour pRegion->SetLineColour(COLOUR_XORSELECT); // And Draw the rect DocRect RubberBox = DocRect(MIN(StartPoint.x, LastMousePosition.x), MIN(StartPoint.y, LastMousePosition.y), MAX(StartPoint.x, LastMousePosition.x), MAX(StartPoint.y, LastMousePosition.y)); // Draw the rectangle pRegion->DrawDragRect(&RubberBox); // Get the Next render region pRegion = DocView::GetNextOnTop(&Rect); } }

virtual BOOL OpSelectorDragBox::SnappingDrag (   )  [inline, virtual]

Reimplemented from Operation. Definition at line 141 of file selector.h. { return FALSE; }

void OpSelectorDragBox::StartDragBox (  Spread *  pSpread, DocCoord  Anchor, ClickModifiers  ClickMods )

This is called when a Drag operation has been detected. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 5/7/93 Parameters: Anchor  - The position of the mouse at the start of the Drag [INPUTS] Reimplemented in OpSliceDragBox. Definition at line 5758 of file selector.cpp. { // We had better take a note of the starting point of the drag StartSpread = pSpread; StartPoint = Anchor; LastMousePosition = Anchor; // Put some helpful text in the status bar. SelectorTool::AllowIdleWork(FALSE); SelectorTool::SetStatusText(_R(IDS_SEL_DRAGBOXTEXT)); // And tell the Dragging system that we need drags to happen StartDrag(DRAGTYPE_AUTOSCROLL); }

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Member Data Documentation

DocCoord OpSelectorDragBox::LastMousePosition [private]

Definition at line 161 of file selector.h.

DocCoord OpSelectorDragBox::StartPoint [private]

Definition at line 160 of file selector.h.

Spread* OpSelectorDragBox::StartSpread [private]

Definition at line 159 of file selector.h.

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The documentation for this class was generated from the following files:

• tools/selector.h (r1785/r1282)
• tools/selector.cpp (r1785/r1740)

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