Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 170 insertions, 0 deletions

diff --git a/include/svx/dialcontrol.hxx b/include/svx/dialcontrol.hxx
new file mode 100644
index 000000000..8fafb3fc0
--- /dev/null
+++ b/include/svx/dialcontrol.hxx
@@ -0,0 +1,170 @@
+/* -*- 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: */