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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 INCLUDED_SVX_DIALCONTROL_HXX
#define INCLUDED_SVX_DIALCONTROL_HXX
#include <memory>
#include <vcl/customweld.hxx>
#include <vcl/virdev.hxx>
#include <svx/svxdllapi.h>
class Edit;
namespace svx {
class SAL_WARN_UNUSED DialControlBmp final : public VirtualDevice
{
public:
explicit DialControlBmp(OutputDevice& rReference);
void InitBitmap(const vcl::Font& rFont);
void SetSize(const Size& rSize);
void CopyBackground( const DialControlBmp& rSrc );
void DrawBackground( const Size& rSize, bool bEnabled );
void DrawBackground();
void DrawElements( const OUString& rText, Degree100 nAngle );
Color GetBackgroundColor() const override;
private:
const Color& GetTextColor() const;
const Color& GetScaleLineColor() const;
const Color& GetButtonLineColor() const;
const Color& GetButtonFillColor( bool bMain ) const;
void Init();
tools::Rectangle maRect;
bool mbEnabled;
OutputDevice& mrParent;
tools::Long mnCenterX;
tools::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 SAL_WARN_UNUSED SVX_DLLPUBLIC DialControl final : public weld::CustomWidgetController
{
public:
virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect) override;
virtual void StyleUpdated() override;
virtual bool MouseButtonDown( const MouseEvent& rMEvt ) override;
virtual bool MouseMove( const MouseEvent& rMEvt ) override;
virtual bool MouseButtonUp( const MouseEvent& rMEvt ) override;
virtual bool KeyInput(const KeyEvent& rKEvt) override;
virtual void LoseFocus() override;
virtual void Resize() override;
/** Returns the current rotation angle in 1/100 degrees. */
Degree100 GetRotation() const;
/** Sets the rotation to the passed value (in 1/100 degrees). */
void SetRotation( Degree100 nAngle );
/** 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();
/** Links the passed numeric edit field to the control (bi-directional).
* nDecimalPlaces:
* field value is unsign given decimal places
* default is 0 which means field values are in degrees,
* 2 means 100th of degree
*/
void SetLinkedField(weld::MetricSpinButton* pField, sal_Int32 nDecimalPlaces = 0);
/** Save value for later comparison */
void SaveValue();
/** Compare value with the saved value */
bool IsValueModified() const;
const OUString& GetText() const { return mpImpl->maText; }
void SetText(const OUString& rText) { mpImpl->maText = rText; }
void SetModifyHdl( const Link<DialControl&,void>& rLink );
void Init( const Size& rWinSize );
void set_visible(bool bVisible)
{
if (bVisible)
Show();
else
Hide();
}
private:
struct SAL_DLLPRIVATE DialControl_Impl
{
ScopedVclPtr<DialControlBmp> mxBmpEnabled;
ScopedVclPtr<DialControlBmp> mxBmpDisabled;
ScopedVclPtr<DialControlBmp> mxBmpBuffered;
Link<DialControl&,void> maModifyHdl;
OUString maText;
weld::MetricSpinButton* mpLinkField;
sal_Int32 mnLinkedFieldValueMultiplyer;
Size maWinSize;
vcl::Font maWinFont;
Degree100 mnAngle;
Degree100 mnInitialAngle;
Degree100 mnOldAngle;
tools::Long mnCenterX;
tools::Long mnCenterY;
bool mbNoRot;
explicit DialControl_Impl(OutputDevice& rReference);
void Init( const Size& rWinSize, const vcl::Font& rWinFont );
void SetSize( const Size& rWinSize );
};
std::unique_ptr< DialControl_Impl > mpImpl;
void HandleMouseEvent( const Point& rPos, bool bInitial );
void HandleEscapeEvent();
void SetRotation( Degree100 nAngle, bool bBroadcast );
void Init( const Size& rWinSize, const vcl::Font& rWinFont );
void InvalidateControl();
DECL_DLLPRIVATE_LINK(LinkedFieldModifyHdl, weld::MetricSpinButton&, void);
};
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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