602 lines
23 KiB
C++
602 lines
23 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/dvrenderers.h
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// Purpose: Declare all wxDataViewCtrl classes
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// Author: Robert Roebling, Vadim Zeitlin
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// Created: 2009-11-08 (extracted from wx/dataview.h)
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// Copyright: (c) 2006 Robert Roebling
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// (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DVRENDERERS_H_
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#define _WX_DVRENDERERS_H_
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/*
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Note about the structure of various headers: they're organized in a more
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complicated way than usual because of the various dependencies which are
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different for different ports. In any case the only public header, i.e. the
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one which can be included directly is wx/dataview.h. It, in turn, includes
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this one to define all the renderer classes.
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We define the base wxDataViewRendererBase class first and then include a
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port-dependent wx/xxx/dvrenderer.h which defines wxDataViewRenderer itself.
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After this we can define wxDataViewRendererCustomBase (and maybe in the
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future base classes for other renderers if the need arises, i.e. if there
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is any non-trivial code or API which it makes sense to keep in common code)
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and include wx/xxx/dvrenderers.h (notice the plural) which defines all the
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rest of the renderer classes.
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*/
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class WXDLLIMPEXP_FWD_CORE wxDataViewCustomRenderer;
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// ----------------------------------------------------------------------------
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// wxDataViewIconText: helper class used by wxDataViewIconTextRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewIconText : public wxObject
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{
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public:
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wxDataViewIconText( const wxString &text = wxEmptyString,
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const wxIcon& icon = wxNullIcon )
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: m_text(text),
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m_icon(icon)
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{ }
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void SetText( const wxString &text ) { m_text = text; }
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wxString GetText() const { return m_text; }
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void SetIcon( const wxIcon &icon ) { m_icon = icon; }
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const wxIcon &GetIcon() const { return m_icon; }
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bool IsSameAs(const wxDataViewIconText& other) const
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{
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return m_text == other.m_text && m_icon.IsSameAs(other.m_icon);
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}
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bool operator==(const wxDataViewIconText& other) const
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{
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return IsSameAs(other);
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}
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bool operator!=(const wxDataViewIconText& other) const
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{
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return !IsSameAs(other);
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}
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private:
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wxString m_text;
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wxIcon m_icon;
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wxDECLARE_DYNAMIC_CLASS(wxDataViewIconText);
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};
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DECLARE_VARIANT_OBJECT_EXPORTED(wxDataViewIconText, WXDLLIMPEXP_CORE)
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// ----------------------------------------------------------------------------
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// wxDataViewCheckIconText: value class used by wxDataViewCheckIconTextRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewCheckIconText : public wxDataViewIconText
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{
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public:
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wxDataViewCheckIconText(const wxString& text = wxString(),
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const wxIcon& icon = wxNullIcon,
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wxCheckBoxState checkedState = wxCHK_UNDETERMINED)
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: wxDataViewIconText(text, icon),
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m_checkedState(checkedState)
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{
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}
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wxCheckBoxState GetCheckedState() const { return m_checkedState; }
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void SetCheckedState(wxCheckBoxState state) { m_checkedState = state; }
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private:
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wxCheckBoxState m_checkedState;
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wxDECLARE_DYNAMIC_CLASS(wxDataViewCheckIconText);
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};
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DECLARE_VARIANT_OBJECT_EXPORTED(wxDataViewCheckIconText, WXDLLIMPEXP_CORE)
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// ----------------------------------------------------------------------------
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// wxDataViewRendererBase
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// ----------------------------------------------------------------------------
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enum wxDataViewCellMode
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{
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wxDATAVIEW_CELL_INERT,
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wxDATAVIEW_CELL_ACTIVATABLE,
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wxDATAVIEW_CELL_EDITABLE
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};
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enum wxDataViewCellRenderState
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{
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wxDATAVIEW_CELL_SELECTED = 1,
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wxDATAVIEW_CELL_PRELIT = 2,
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wxDATAVIEW_CELL_INSENSITIVE = 4,
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wxDATAVIEW_CELL_FOCUSED = 8
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};
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// helper for fine-tuning rendering of values depending on row's state
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class WXDLLIMPEXP_CORE wxDataViewValueAdjuster
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{
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public:
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virtual ~wxDataViewValueAdjuster() {}
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// changes the value to have appearance suitable for highlighted rows
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virtual wxVariant MakeHighlighted(const wxVariant& value) const { return value; }
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};
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class WXDLLIMPEXP_CORE wxDataViewRendererBase: public wxObject
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{
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public:
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wxDataViewRendererBase( const wxString &varianttype,
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wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
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int alignment = wxDVR_DEFAULT_ALIGNMENT );
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virtual ~wxDataViewRendererBase();
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virtual bool Validate( wxVariant& WXUNUSED(value) )
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{ return true; }
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void SetOwner( wxDataViewColumn *owner ) { m_owner = owner; }
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wxDataViewColumn* GetOwner() const { return m_owner; }
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// renderer value and attributes: SetValue() and SetAttr() are called
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// before a cell is rendered using this renderer
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virtual bool SetValue(const wxVariant& value) = 0;
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virtual bool GetValue(wxVariant& value) const = 0;
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#if wxUSE_ACCESSIBILITY
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virtual wxString GetAccessibleDescription() const = 0;
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#endif // wxUSE_ACCESSIBILITY
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wxString GetVariantType() const { return m_variantType; }
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// Prepare for rendering the value of the corresponding item in the given
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// column taken from the provided non-null model.
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//
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// Notice that the column must be the same as GetOwner()->GetModelColumn(),
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// it is only passed to this method because the existing code already has
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// it and should probably be removed in the future.
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//
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// Return true if this cell is non-empty or false otherwise (and also if
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// the model returned a value of the wrong, i.e. different from our
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// GetVariantType(), type, in which case a debug error is also logged).
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bool PrepareForItem(const wxDataViewModel *model,
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const wxDataViewItem& item,
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unsigned column);
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// renderer properties:
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virtual void SetMode( wxDataViewCellMode mode ) = 0;
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virtual wxDataViewCellMode GetMode() const = 0;
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// NOTE: Set/GetAlignment do not take/return a wxAlignment enum but
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// rather an "int"; that's because for rendering cells it's allowed
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// to combine alignment flags (e.g. wxALIGN_LEFT|wxALIGN_BOTTOM)
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virtual void SetAlignment( int align ) = 0;
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virtual int GetAlignment() const = 0;
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// enable or disable (if called with wxELLIPSIZE_NONE) replacing parts of
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// the item text (hence this only makes sense for renderers showing
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// text...) with ellipsis in order to make it fit the column width
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virtual void EnableEllipsize(wxEllipsizeMode mode = wxELLIPSIZE_MIDDLE) = 0;
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void DisableEllipsize() { EnableEllipsize(wxELLIPSIZE_NONE); }
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virtual wxEllipsizeMode GetEllipsizeMode() const = 0;
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// in-place editing
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virtual bool HasEditorCtrl() const
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{ return false; }
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virtual wxWindow* CreateEditorCtrl(wxWindow * WXUNUSED(parent),
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wxRect WXUNUSED(labelRect),
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const wxVariant& WXUNUSED(value))
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{ return NULL; }
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virtual bool GetValueFromEditorCtrl(wxWindow * WXUNUSED(editor),
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wxVariant& WXUNUSED(value))
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{ return false; }
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virtual bool StartEditing( const wxDataViewItem &item, wxRect labelRect );
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virtual void CancelEditing();
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virtual bool FinishEditing();
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wxWindow *GetEditorCtrl() const { return m_editorCtrl; }
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virtual bool IsCustomRenderer() const { return false; }
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// Implementation only from now on.
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// Return the alignment of this renderer if it's specified (i.e. has value
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// different from the default wxDVR_DEFAULT_ALIGNMENT) or the alignment of
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// the column it is used for otherwise.
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//
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// Unlike GetAlignment(), this always returns a valid combination of
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// wxALIGN_XXX flags (although possibly wxALIGN_NOT) and never returns
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// wxDVR_DEFAULT_ALIGNMENT.
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int GetEffectiveAlignment() const;
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// Like GetEffectiveAlignment(), but returns wxDVR_DEFAULT_ALIGNMENT if
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// the owner isn't set and GetAlignment() is default.
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int GetEffectiveAlignmentIfKnown() const;
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// Send wxEVT_DATAVIEW_ITEM_EDITING_STARTED event.
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void NotifyEditingStarted(const wxDataViewItem& item);
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// Sets the transformer for fine-tuning rendering of values depending on row's state
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void SetValueAdjuster(wxDataViewValueAdjuster *transformer)
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{ delete m_valueAdjuster; m_valueAdjuster = transformer; }
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protected:
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// These methods are called from PrepareForItem() and should do whatever is
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// needed for the current platform to ensure that the item is rendered
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// using the given attributes and enabled/disabled state.
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virtual void SetAttr(const wxDataViewItemAttr& attr) = 0;
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virtual void SetEnabled(bool enabled) = 0;
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// Return whether the currently rendered item is on a highlighted row
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// (typically selection with dark background). For internal use only.
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virtual bool IsHighlighted() const = 0;
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// Helper of PrepareForItem() also used in StartEditing(): returns the
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// value checking that its type matches our GetVariantType().
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wxVariant CheckedGetValue(const wxDataViewModel* model,
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const wxDataViewItem& item,
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unsigned column) const;
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// Validates the given value (if it is non-null) and sends (in any case)
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// ITEM_EDITING_DONE event and, finally, updates the model with the value
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// (f it is valid, of course) if the event wasn't vetoed.
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bool DoHandleEditingDone(wxVariant* value);
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wxString m_variantType;
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wxDataViewColumn *m_owner;
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wxWeakRef<wxWindow> m_editorCtrl;
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wxDataViewItem m_item; // Item being currently edited, if valid.
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wxDataViewValueAdjuster *m_valueAdjuster;
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// internal utility, may be used anywhere the window associated with the
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// renderer is required
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wxDataViewCtrl* GetView() const;
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private:
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// Called from {Called,Finish}Editing() and dtor to cleanup m_editorCtrl
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void DestroyEditControl();
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wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRendererBase);
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};
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// include the real wxDataViewRenderer declaration for the native ports
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#ifdef wxHAS_GENERIC_DATAVIEWCTRL
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// in the generic implementation there is no real wxDataViewRenderer, all
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// renderers are custom so it's the same as wxDataViewCustomRenderer and
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// wxDataViewCustomRendererBase derives from wxDataViewRendererBase directly
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//
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// this is a rather ugly hack but unfortunately it just doesn't seem to be
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// possible to have the same class hierarchy in all ports and avoid
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// duplicating the entire wxDataViewCustomRendererBase in the generic
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// wxDataViewRenderer class (well, we could use a mix-in but this would
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// make classes hierarchy non linear and arguably even more complex)
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#define wxDataViewCustomRendererRealBase wxDataViewRendererBase
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#else
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#if defined(__WXGTK20__)
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#include "wx/gtk/dvrenderer.h"
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#elif defined(__WXMAC__)
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#include "wx/osx/dvrenderer.h"
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#elif defined(__WXQT__)
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#include "wx/qt/dvrenderer.h"
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#else
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#error "unknown native wxDataViewCtrl implementation"
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#endif
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#define wxDataViewCustomRendererRealBase wxDataViewRenderer
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#endif
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// ----------------------------------------------------------------------------
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// wxDataViewCustomRendererBase
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewCustomRendererBase
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: public wxDataViewCustomRendererRealBase
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{
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public:
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// Constructor must specify the usual renderer parameters which we simply
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// pass to the base class
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wxDataViewCustomRendererBase(const wxString& varianttype = wxASCII_STR("string"),
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wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
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int align = wxDVR_DEFAULT_ALIGNMENT)
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: wxDataViewCustomRendererRealBase(varianttype, mode, align)
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{
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}
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// Render the item using the current value (returned by GetValue()).
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virtual bool Render(wxRect cell, wxDC *dc, int state) = 0;
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// Return the size of the item appropriate to its current value.
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virtual wxSize GetSize() const = 0;
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// Define virtual function which are called when a key is pressed on the
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// item, clicked or the user starts to drag it: by default they all simply
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// return false indicating that the events are not handled
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virtual bool ActivateCell(const wxRect& cell,
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wxDataViewModel *model,
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const wxDataViewItem & item,
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unsigned int col,
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const wxMouseEvent* mouseEvent);
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// Deprecated, use (and override) ActivateCell() instead
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wxDEPRECATED_BUT_USED_INTERNALLY_INLINE(
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virtual bool Activate(wxRect WXUNUSED(cell),
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wxDataViewModel *WXUNUSED(model),
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const wxDataViewItem & WXUNUSED(item),
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unsigned int WXUNUSED(col)),
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return false; )
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// Deprecated, use (and override) ActivateCell() instead
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wxDEPRECATED_BUT_USED_INTERNALLY_INLINE(
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virtual bool LeftClick(wxPoint WXUNUSED(cursor),
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wxRect WXUNUSED(cell),
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wxDataViewModel *WXUNUSED(model),
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const wxDataViewItem & WXUNUSED(item),
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unsigned int WXUNUSED(col)),
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return false; )
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virtual bool StartDrag(const wxPoint& WXUNUSED(cursor),
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const wxRect& WXUNUSED(cell),
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wxDataViewModel *WXUNUSED(model),
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const wxDataViewItem & WXUNUSED(item),
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unsigned int WXUNUSED(col) )
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{ return false; }
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// Helper which can be used by Render() implementation in the derived
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// classes: it will draw the text in the same manner as the standard
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// renderers do.
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virtual void RenderText(const wxString& text,
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int xoffset,
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wxRect cell,
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wxDC *dc,
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int state);
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// Override the base class virtual method to simply store the attribute so
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// that it can be accessed using GetAttr() from Render() if needed.
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virtual void SetAttr(const wxDataViewItemAttr& attr) wxOVERRIDE { m_attr = attr; }
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const wxDataViewItemAttr& GetAttr() const { return m_attr; }
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// Store the enabled state of the item so that it can be accessed from
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// Render() via GetEnabled() if needed.
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virtual void SetEnabled(bool enabled) wxOVERRIDE;
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bool GetEnabled() const { return m_enabled; }
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// Implementation only from now on
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// Retrieve the DC to use for drawing. This is implemented in derived
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// platform-specific classes.
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virtual wxDC *GetDC() = 0;
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// To draw background use the background colour in wxDataViewItemAttr
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virtual void RenderBackground(wxDC* dc, const wxRect& rect);
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// Prepare DC to use attributes and call Render().
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void WXCallRender(wxRect rect, wxDC *dc, int state);
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virtual bool IsCustomRenderer() const wxOVERRIDE { return true; }
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protected:
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// helper for GetSize() implementations, respects attributes
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wxSize GetTextExtent(const wxString& str) const;
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private:
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wxDataViewItemAttr m_attr;
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bool m_enabled;
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wxDECLARE_NO_COPY_CLASS(wxDataViewCustomRendererBase);
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};
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// include the declaration of all the other renderers to get the real
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// wxDataViewCustomRenderer from which we need to inherit below
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#ifdef wxHAS_GENERIC_DATAVIEWCTRL
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// because of the different renderer classes hierarchy in the generic
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// version, as explained above, we can include the header defining
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// wxDataViewRenderer only here and not before wxDataViewCustomRendererBase
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// declaration as for the native ports
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#include "wx/generic/dvrenderer.h"
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#include "wx/generic/dvrenderers.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/dvrenderers.h"
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#elif defined(__WXMAC__)
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#include "wx/osx/dvrenderers.h"
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#elif defined(__WXQT__)
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#include "wx/qt/dvrenderers.h"
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#else
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#error "unknown native wxDataViewCtrl implementation"
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#endif
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#if wxUSE_SPINCTRL
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// ----------------------------------------------------------------------------
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// wxDataViewSpinRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewSpinRenderer: public wxDataViewCustomRenderer
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{
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public:
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wxDataViewSpinRenderer( int min, int max,
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wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
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int alignment = wxDVR_DEFAULT_ALIGNMENT );
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virtual bool HasEditorCtrl() const wxOVERRIDE { return true; }
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virtual wxWindow* CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value ) wxOVERRIDE;
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virtual bool GetValueFromEditorCtrl( wxWindow* editor, wxVariant &value ) wxOVERRIDE;
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virtual bool Render( wxRect rect, wxDC *dc, int state ) wxOVERRIDE;
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virtual wxSize GetSize() const wxOVERRIDE;
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virtual bool SetValue( const wxVariant &value ) wxOVERRIDE;
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virtual bool GetValue( wxVariant &value ) const wxOVERRIDE;
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#if wxUSE_ACCESSIBILITY
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virtual wxString GetAccessibleDescription() const wxOVERRIDE;
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#endif // wxUSE_ACCESSIBILITY
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private:
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long m_data;
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long m_min,m_max;
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};
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#endif // wxUSE_SPINCTRL
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#if defined(wxHAS_GENERIC_DATAVIEWCTRL)
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// ----------------------------------------------------------------------------
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// wxDataViewChoiceRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewChoiceRenderer: public wxDataViewCustomRenderer
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{
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public:
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wxDataViewChoiceRenderer( const wxArrayString &choices,
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wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
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int alignment = wxDVR_DEFAULT_ALIGNMENT );
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virtual bool HasEditorCtrl() const wxOVERRIDE { return true; }
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virtual wxWindow* CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value ) wxOVERRIDE;
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virtual bool GetValueFromEditorCtrl( wxWindow* editor, wxVariant &value ) wxOVERRIDE;
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virtual bool Render( wxRect rect, wxDC *dc, int state ) wxOVERRIDE;
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virtual wxSize GetSize() const wxOVERRIDE;
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virtual bool SetValue( const wxVariant &value ) wxOVERRIDE;
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virtual bool GetValue( wxVariant &value ) const wxOVERRIDE;
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#if wxUSE_ACCESSIBILITY
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virtual wxString GetAccessibleDescription() const wxOVERRIDE;
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#endif // wxUSE_ACCESSIBILITY
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wxString GetChoice(size_t index) const { return m_choices[index]; }
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const wxArrayString& GetChoices() const { return m_choices; }
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private:
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wxArrayString m_choices;
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wxString m_data;
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};
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// ----------------------------------------------------------------------------
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// wxDataViewChoiceByIndexRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewChoiceByIndexRenderer: public wxDataViewChoiceRenderer
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{
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public:
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wxDataViewChoiceByIndexRenderer( const wxArrayString &choices,
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wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
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int alignment = wxDVR_DEFAULT_ALIGNMENT );
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virtual wxWindow* CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value ) wxOVERRIDE;
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virtual bool GetValueFromEditorCtrl( wxWindow* editor, wxVariant &value ) wxOVERRIDE;
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virtual bool SetValue( const wxVariant &value ) wxOVERRIDE;
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virtual bool GetValue( wxVariant &value ) const wxOVERRIDE;
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#if wxUSE_ACCESSIBILITY
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virtual wxString GetAccessibleDescription() const wxOVERRIDE;
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#endif // wxUSE_ACCESSIBILITY
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};
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|
|
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#endif // generic version
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#if defined(wxHAS_GENERIC_DATAVIEWCTRL) || defined(__WXGTK__)
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// ----------------------------------------------------------------------------
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// wxDataViewDateRenderer
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// ----------------------------------------------------------------------------
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#if wxUSE_DATEPICKCTRL
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class WXDLLIMPEXP_CORE wxDataViewDateRenderer: public wxDataViewCustomRenderer
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{
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public:
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static wxString GetDefaultType() { return wxS("datetime"); }
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wxDataViewDateRenderer(const wxString &varianttype = GetDefaultType(),
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wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
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int align = wxDVR_DEFAULT_ALIGNMENT);
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|
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virtual bool HasEditorCtrl() const wxOVERRIDE { return true; }
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virtual wxWindow *CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant &value) wxOVERRIDE;
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virtual bool GetValueFromEditorCtrl(wxWindow* editor, wxVariant &value) wxOVERRIDE;
|
|
virtual bool SetValue(const wxVariant &value) wxOVERRIDE;
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|
virtual bool GetValue(wxVariant& value) const wxOVERRIDE;
|
|
#if wxUSE_ACCESSIBILITY
|
|
virtual wxString GetAccessibleDescription() const wxOVERRIDE;
|
|
#endif // wxUSE_ACCESSIBILITY
|
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virtual bool Render( wxRect cell, wxDC *dc, int state ) wxOVERRIDE;
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virtual wxSize GetSize() const wxOVERRIDE;
|
|
|
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private:
|
|
wxDateTime m_date;
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|
};
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#else // !wxUSE_DATEPICKCTRL
|
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typedef wxDataViewTextRenderer wxDataViewDateRenderer;
|
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#endif
|
|
|
|
#endif // generic or GTK+ versions
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|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDataViewCheckIconTextRenderer: 3-state checkbox + text + optional icon
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if defined(wxHAS_GENERIC_DATAVIEWCTRL) || !defined(__WXOSX__)
|
|
|
|
class WXDLLIMPEXP_CORE wxDataViewCheckIconTextRenderer
|
|
: public wxDataViewCustomRenderer
|
|
{
|
|
public:
|
|
static wxString GetDefaultType() { return wxS("wxDataViewCheckIconText"); }
|
|
|
|
explicit wxDataViewCheckIconTextRenderer
|
|
(
|
|
wxDataViewCellMode mode = wxDATAVIEW_CELL_ACTIVATABLE,
|
|
int align = wxDVR_DEFAULT_ALIGNMENT
|
|
);
|
|
|
|
// This renderer can always display the 3rd ("indeterminate") checkbox
|
|
// state if the model contains cells with wxCHK_UNDETERMINED value, but it
|
|
// doesn't allow the user to set it by default. Call this method to allow
|
|
// this to happen.
|
|
void Allow3rdStateForUser(bool allow = true);
|
|
|
|
virtual bool SetValue(const wxVariant& value) wxOVERRIDE;
|
|
virtual bool GetValue(wxVariant& value) const wxOVERRIDE;
|
|
|
|
#if wxUSE_ACCESSIBILITY
|
|
virtual wxString GetAccessibleDescription() const wxOVERRIDE;
|
|
#endif // wxUSE_ACCESSIBILITY
|
|
|
|
virtual wxSize GetSize() const wxOVERRIDE;
|
|
virtual bool Render(wxRect cell, wxDC* dc, int state) wxOVERRIDE;
|
|
virtual bool ActivateCell(const wxRect& cell,
|
|
wxDataViewModel *model,
|
|
const wxDataViewItem & item,
|
|
unsigned int col,
|
|
const wxMouseEvent *mouseEvent) wxOVERRIDE;
|
|
|
|
private:
|
|
wxSize GetCheckSize() const;
|
|
|
|
// Just some arbitrary constants defining margins, in pixels.
|
|
enum
|
|
{
|
|
MARGIN_CHECK_ICON = 3,
|
|
MARGIN_ICON_TEXT = 4
|
|
};
|
|
|
|
wxDataViewCheckIconText m_value;
|
|
|
|
bool m_allow3rdStateForUser;
|
|
|
|
wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewCheckIconTextRenderer);
|
|
};
|
|
|
|
#endif // ! native __WXOSX__
|
|
|
|
// this class is obsolete, its functionality was merged in
|
|
// wxDataViewTextRenderer itself now, don't use it any more
|
|
#define wxDataViewTextRendererAttr wxDataViewTextRenderer
|
|
|
|
#endif // _WX_DVRENDERERS_H_
|
|
|