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| -rw-r--r-- | include/svx/dialcontrol.hxx | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/include/svx/dialcontrol.hxx b/include/svx/dialcontrol.hxx new file mode 100644 index 000000000..d4eb26650 --- /dev/null +++ b/include/svx/dialcontrol.hxx @@ -0,0 +1,171 @@ +/* -*- 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 <config_options.h> +#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, sal_Int32 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; + 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 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. */ + sal_Int32 GetRotation() const; + /** Sets the rotation to the passed value (in 1/100 degrees). */ + void SetRotation( sal_Int32 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; + sal_Int32 mnAngle; + sal_Int32 mnInitialAngle; + sal_Int32 mnOldAngle; + long mnCenterX; + 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( sal_Int32 nAngle, bool bBroadcast ); + + void Init( const Size& rWinSize, const vcl::Font& rWinFont ); + + void InvalidateControl(); + + DECL_LINK(LinkedFieldModifyHdl, weld::MetricSpinButton&, void); +}; + +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |