/* -*- 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 .
*/
/** 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: virtualvoid SetDrawingArea(weld::DrawingArea* pDrawingArea) 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;
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