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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef SVX_DIALCONTROL_HXX
#define SVX_DIALCONTROL_HXX
#include <memory>
#include <vcl/ctrl.hxx>
#include <sfx2/itemconnect.hxx>
#include "svx/svxdllapi.h"
#include <boost/scoped_ptr.hpp>
class NumericField;
namespace svx {
// ============================================================================
class DialControlBmp : public VirtualDevice
{
public:
explicit DialControlBmp( Window& rParent );
void InitBitmap(const Font& rFont);
void SetSize(const Size& rSize);
void CopyBackground( const DialControlBmp& rSrc );
void DrawBackground( const Size& rSize, bool bEnabled );
virtual void DrawBackground();
virtual void DrawElements( const OUString& rText, sal_Int32 nAngle );
protected:
Rectangle maRect;
bool mbEnabled;
private:
const Color& GetBackgroundColor() const;
const Color& GetTextColor() const;
const Color& GetScaleLineColor() const;
const Color& GetButtonLineColor() const;
const Color& GetButtonFillColor( bool bMain ) const;
void Init();
Window& mrParent;
long mnCenterX;
long mnCenterY;
};
/** This control allows to input a rotation angle, visualized by a dial.
Usage: A single click sets a rotation angle rounded to steps of 15 degrees.
Dragging with the left mouse button sets an exact rotation angle. Pressing
the ESCAPE key during mouse drag cancels the operation and restores the old
state of the control.
It is possible to link a numeric field to this control using the function
SetLinkedField(). The DialControl will take full control of this numeric
field:
- Sets the rotation angle to the numeric field in mouse operations.
- Shows the value entered/modified in the numeric field.
- Enables/disables/shows/hides the field according to own state changes.
*/
class SVX_DLLPUBLIC DialControl : public Control
{
public:
explicit DialControl( Window* pParent, const ResId& rResId );
explicit DialControl( Window* pParent, WinBits nBits );
virtual ~DialControl();
virtual void Paint( const Rectangle& rRect );
virtual void StateChanged( StateChangedType nStateChange );
virtual void DataChanged( const DataChangedEvent& rDCEvt );
virtual void MouseButtonDown( const MouseEvent& rMEvt );
virtual void MouseMove( const MouseEvent& rMEvt );
virtual void MouseButtonUp( const MouseEvent& rMEvt );
virtual void KeyInput( const KeyEvent& rKEvt );
virtual void LoseFocus();
virtual Size GetOptimalSize() const;
virtual void Resize();
/** Returns true, if the control is not in "don't care" state. */
bool HasRotation() const;
/** Sets the control to "don't care" state. */
void SetNoRotation();
/** Returns the current rotation angle in 1/100 degrees. */
sal_Int32 GetRotation() const;
/** Sets the rotation to the passed value (in 1/100 degrees). */
void SetRotation( sal_Int32 nAngle );
/** Links the passed numeric edit field to the control (bi-directional).
* nDecimalPlaces:
* field value is usign given decimal places
* default is 0 which means field values are in degrees,
* 2 means 100th of degree
*/
void SetLinkedField( NumericField* pField, sal_Int32 nDecimalPlaces = 0);
/** The passed handler is called whenever the totation value changes. */
void SetModifyHdl( const Link& rLink );
/** Returns the current modify handler. */
const Link& GetModifyHdl() const;
/** Save value for later comparison */
void SaveValue();
/** Compare value with the saved value */
bool IsValueModified();
protected:
struct DialControl_Impl
{
::boost::scoped_ptr<DialControlBmp> mpBmpEnabled;
::boost::scoped_ptr<DialControlBmp> mpBmpDisabled;
::boost::scoped_ptr<DialControlBmp> mpBmpBuffered;
Link maModifyHdl;
NumericField* mpLinkField;
sal_Int32 mnLinkedFieldValueMultiplyer;
Size maWinSize;
Font maWinFont;
sal_Int32 mnAngle;
sal_Int32 mnInitialAngle;
sal_Int32 mnOldAngle;
long mnCenterX;
long mnCenterY;
bool mbNoRot;
explicit DialControl_Impl( Window& rParent );
void Init( const Size& rWinSize, const Font& rWinFont );
void SetSize( const Size& rWinSize );
};
std::auto_ptr< DialControl_Impl > mpImpl;
virtual void HandleMouseEvent( const Point& rPos, bool bInitial );
virtual void HandleEscapeEvent();
void SetRotation( sal_Int32 nAngle, bool bBroadcast );
void Init( const Size& rWinSize, const Font& rWinFont );
void Init( const Size& rWinSize );
private:
void InvalidateControl();
void ImplSetFieldLink( const Link& rLink );
DECL_LINK( LinkedFieldModifyHdl, NumericField* );
};
// ============================================================================
/** Wrapper for usage of a DialControl in item connections. */
class SVX_DLLPUBLIC DialControlWrapper : public sfx::SingleControlWrapper< DialControl, sal_Int32 >
{
public:
explicit DialControlWrapper( DialControl& rDial );
virtual bool IsControlDontKnow() const;
virtual void SetControlDontKnow( bool bSet );
virtual sal_Int32 GetControlValue() const;
virtual void SetControlValue( sal_Int32 nValue );
};
// ----------------------------------------------------------------------------
/** An item<->control connection for a DialControl. */
typedef sfx::ItemControlConnection< sfx::Int32ItemWrapper, DialControlWrapper > DialControlConnection;
// ============================================================================
} // namespace svx
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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