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93 lines
3.5 KiB
93 lines
3.5 KiB
/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* copyright (C) 2006 *
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* Umbrello UML Modeller Authors <uml-devel@uml.sf.net> *
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***************************************************************************/
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#ifndef OBJECTWIDGETCONTROLLER_H
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#define OBJECTWIDGETCONTROLLER_H
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#include "umlwidgetcontroller.h"
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class ObjectWidget;
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/**
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* Controller for ObjectWidget.
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*
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* When moving an ObjectWidget, it is only moved along X axis. Y axis movement
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* is always ignored.
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* So, if the ObjectWidget is being moved as part of a selection and that
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* selection is moved in X and/or Y axis, the ObjectWidget will only move in X axis.
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* Also, when constraining the move of the selection because the receiver of
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* mouse move events is an ObjectWidget, all the widgets are moved only in X axis.
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*
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* Only horizontal resize is allowed for ObjectWidget. Cursor is set to reflect this.
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*
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* @author Umbrello UML Modeller Authors <uml-devel@lists.sourceforge.net>
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*/
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class ObjectWidgetController : public UMLWidgetController {
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public:
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/**
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* Constructor for ObjectWidgetController.
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*
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* @param objectWidget The object widget which uses the controller.
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*/
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ObjectWidgetController(ObjectWidget *objectWidget);
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/**
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* Destructor for ObjectWidgetController.
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*/
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virtual ~ObjectWidgetController();
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protected:
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/**
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* Overriden from UMLWidgetController.
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* Returns the cursor to be shown when resizing the widget.
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* The cursor shown is KCursor::sizeHorCursor().
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*
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* @return The cursor to be shown when resizing the widget.
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*/
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virtual TQCursor getResizeCursor();
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/**
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* Overriden from UMLWidgetController.
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* Resizes the width of the object widget.
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* Object widgets can only be resized horizontally, so height isn't modified.
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*
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* @param newW The new width for the widget.
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* @param newH The new height for the widget (isn't used).
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*/
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virtual void resizeWidget(int newW, int newH);
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/**
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* Overriden from UMLWidgetController.
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* Moves the widget to a new position using the difference between the
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* current position and the new position.
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* Y position is ignored, and widget is only moved along X axis.
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*
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* @param diffX The difference between current X position and new X position.
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* @param diffY The difference between current Y position and new Y position
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* (isn't used).
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*/
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virtual void moveWidgetBy(int diffX, int diffY);
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/**
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* Overriden from UMLWidgetController.
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* Modifies the value of the diffX and diffY variables used to move the widgets.
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* All the widgets are constrained to be moved only in X axis (diffY is set to 0).
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*
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* @param diffX The difference between current X position and new X position.
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* @param diffY The difference between current Y position and new Y position.
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*/
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virtual void constrainMovementForAllWidgets(int &diffX, int &diffY);
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};
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#endif
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