include/svx/frmsel.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_SVX_FRMSEL_HXX
  21 #define INCLUDED_SVX_FRMSEL_HXX
  22
  23 #include <memory>
  24 #include <vcl/customweld.hxx>
  25 #include <editeng/borderline.hxx>
  26 #include <svx/framebordertype.hxx>
  27 #include <svx/svxdllapi.h>
  28 #include <o3tl/typed_flags_set.hxx>
  29
  30 class Color;
  31
  32 enum class FrameSelFlags
  33 {
  34     NONE            = 0x0000,
  35     /** If set, the left frame border is enabled. */
  36     Left            = 0x0001,
  37     /** If set, the right frame border is enabled. */
  38     Right           = 0x0002,
  39     /** If set, the top frame border is enabled. */
  40     Top             = 0x0004,
  41     /** If set, the bottom frame border is enabled. */
  42     Bottom          = 0x0008,
  43     /** If set, the inner horizontal frame border is enabled. */
  44     InnerHorizontal = 0x0010,
  45     /** If set, the inner vertical frame border is enabled. */
  46     InnerVertical   = 0x0020,
  47     /** If set, the top-left to bottom-right diagonal frame border is enabled. */
  48     DiagonalTLBR    = 0x0040,
  49     /** If set, the bottom-left to top-right diagonal frame border is enabled. */
  50     DiagonalBLTR    = 0x0080,
  51
  52     /** If set, all four outer frame borders are enabled. */
  53     Outer           = Left | Right | Top | Bottom,
  54
  55     /** If set, all frame borders will support the don't care state. */
  56     DontCare        = 0x0100
  57 };
  58 namespace o3tl
  59 {
  60     template<> struct typed_flags<FrameSelFlags> : is_typed_flags<FrameSelFlags, 0x1ff> {};
  61 }
  62
  63 namespace svx {
  64
  65 struct FrameSelectorImpl;
  66 namespace a11y { class AccFrameSelectorChild; }
  67
  68 /** All possible states of a frame border. */
  69 enum class FrameBorderState
  70 {
  71     Show,        /// Frame border has a visible style.
  72     Hide,        /// Frame border is hidden (off).
  73     DontCare     /// Frame border is in don't care state (if enabled).
  74 };
  75
  76
  77 namespace a11y
  78 {
  79     class AccFrameSelector;
  80 }
  81
  82 class SAL_WARN_UNUSED SVX_DLLPUBLIC FrameSelector : public weld::CustomWidgetController
  83 {
  84 public:
  85     FrameSelector();
  86     virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
  87     virtual ~FrameSelector() override;
  88
  89     /** Initializes the control, enables/disables frame borders according to flags. */
  90     void                Initialize( FrameSelFlags nFlags );
  91
  92     // enabled frame borders
  93
  94     /** Returns true, if the specified frame border is enabled. */
  95     bool                IsBorderEnabled( FrameBorderType eBorder ) const;
  96     /** Returns the number of enabled frame borders. */
  97     sal_Int32           GetEnabledBorderCount() const;
  98     /** Returns the border type from the passed index (counts only enabled frame borders). */
  99     FrameBorderType     GetEnabledBorderType( sal_Int32 nIndex ) const;
 100
 101     // frame border state and style
 102
 103     /** Returns true, if the control supports the "don't care" frame border state. */
 104     bool                SupportsDontCareState() const;
 105
 106     /** Returns the state (visible/hidden/don't care) of the specified frame border. */
 107     FrameBorderState    GetFrameBorderState( FrameBorderType eBorder ) const;
 108     /** Returns the style of the specified frame border, if it is visible. */
 109     const editeng::SvxBorderLine* GetFrameBorderStyle( FrameBorderType eBorder ) const;
 110
 111     /** Shows the specified frame border using the passed style, or hides it, if pStyle is 0. */
 112     void                ShowBorder( FrameBorderType eBorder, const editeng::SvxBorderLine* pStyle );
 113     /** Sets the specified frame border to "don't care" state. */
 114     void                SetBorderDontCare( FrameBorderType eBorder );
 115
 116     /** Returns true, if any enabled frame border has a visible style (not "don't care"). */
 117     bool                IsAnyBorderVisible() const;
 118     /** Hides all enabled frame borders. */
 119     void                HideAllBorders();
 120
 121     /** Returns true, if all visible frame borders have equal widths.
 122         @descr  Ignores hidden and "don't care" frame borders. On success,
 123         returns the width in the passed parameter. */
 124     bool                GetVisibleWidth( long& rnWidth, SvxBorderLineStyle& rnStyle ) const;
 125     /** Returns true, if all visible frame borders have equal color.
 126         @descr  Ignores hidden and "don't care" frame borders. On success,
 127         returns the color in the passed parameter. */
 128     bool                GetVisibleColor( Color& rColor ) const;
 129
 130     // frame border selection
 131
 132     /** Returns the current selection handler. */
 133     const Link<LinkParamNone*,void>&  GetSelectHdl() const;
 134     /** Sets the passed handler that is called if the selection of the control changes. */
 135     void                SetSelectHdl( const Link<LinkParamNone*,void>& rHdl );
 136
 137     /** Returns true, if the specified frame border is selected. */
 138     bool                IsBorderSelected( FrameBorderType eBorder ) const;
 139     /** Selects or deselects the specified frame border. */
 140     void                SelectBorder( FrameBorderType eBorder );
 141     /** Returns true, if any of the enabled frame borders is selected. */
 142     bool                IsAnyBorderSelected() const;
 143     /** Selects or deselects all frame borders. */
 144     void                SelectAllBorders( bool bSelect );
 145     /** Deselects all frame borders. */
 146     void         DeselectAllBorders() { SelectAllBorders( false ); }
 147
 148     /** Selects or deselects all visible frame borders (ignores hidden and "don't care" borders). */
 149     void                SelectAllVisibleBorders();
 150
 151     /** Sets the passed line widths to all selected frame borders (in twips). */
 152     void                SetStyleToSelection( long nWidth, SvxBorderLineStyle nStyle );
 153     /** Sets the passed color to all selected frame borders. */
 154     void                SetColorToSelection( const Color& rColor );
 155
 156     // accessibility
 157
 158     css::uno::Reference<css::accessibility::XAccessible> getAccessibleParent() { return GetDrawingArea()->get_accessible_parent(); }
 159     virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() override;
 160     a11yrelationset get_accessible_relation_set() { return GetDrawingArea()->get_accessible_relation_set(); }
 161
 162     /** Returns the accessibility child object of the specified frame border (if enabled). */
 163     rtl::Reference< a11y::AccFrameSelectorChild >
 164                         GetChildAccessible( FrameBorderType eBorder );
 165     /** Returns the accessibility child object with specified index (counts enabled frame borders only). */
 166     css::uno::Reference< css::accessibility::XAccessible >
 167                         GetChildAccessible( sal_Int32 nIndex );
 168     /** Returns the accessibility child object at the specified position (relative to control). */
 169     css::uno::Reference< css::accessibility::XAccessible >
 170                         GetChildAccessible( const Point& rPos );
 171
 172     /** Returns the bounding rectangle of the specified frame border (if enabled). */
 173     tools::Rectangle           GetClickBoundRect( FrameBorderType eBorder ) const;
 174
 175 protected:
 176     virtual void        Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;
 177     virtual bool        MouseButtonDown( const MouseEvent& rMEvt ) override;
 178     virtual bool        KeyInput( const KeyEvent& rKEvt ) override;
 179     virtual void        GetFocus() override;
 180     virtual void        LoseFocus() override;
 181     virtual void        StyleUpdated() override;
 182     virtual void        Resize() override;
 183
 184 private:
 185     rtl::Reference<a11y::AccFrameSelector> mxAccess;   /// Pointer to accessibility object of the control.
 186     std::unique_ptr< FrameSelectorImpl > mxImpl;
 187 };
 188
 189 }
 190
 191 #endif
 192
 193 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */