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129 lines
3.8 KiB
C++
129 lines
3.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/peninfobase.h
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// Purpose: Declaration of wxPenInfoBase class and related constants
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// Author: Adrien Tétar, Vadim Zeitlin
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// Created: 2017-09-10
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// Copyright: (c) 2017 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_PENINFOBASE_H_
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#define _WX_PENINFOBASE_H_
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#include "wx/bitmap.h"
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#include "wx/colour.h"
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#include "wx/gdicmn.h" // for wxDash
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enum wxPenStyle
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{
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wxPENSTYLE_INVALID = -1,
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wxPENSTYLE_SOLID = wxSOLID,
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wxPENSTYLE_DOT = wxDOT,
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wxPENSTYLE_LONG_DASH = wxLONG_DASH,
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wxPENSTYLE_SHORT_DASH = wxSHORT_DASH,
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wxPENSTYLE_DOT_DASH = wxDOT_DASH,
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wxPENSTYLE_USER_DASH = wxUSER_DASH,
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wxPENSTYLE_TRANSPARENT = wxTRANSPARENT,
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wxPENSTYLE_STIPPLE_MASK_OPAQUE = wxSTIPPLE_MASK_OPAQUE,
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wxPENSTYLE_STIPPLE_MASK = wxSTIPPLE_MASK,
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wxPENSTYLE_STIPPLE = wxSTIPPLE,
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wxPENSTYLE_BDIAGONAL_HATCH = wxHATCHSTYLE_BDIAGONAL,
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wxPENSTYLE_CROSSDIAG_HATCH = wxHATCHSTYLE_CROSSDIAG,
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wxPENSTYLE_FDIAGONAL_HATCH = wxHATCHSTYLE_FDIAGONAL,
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wxPENSTYLE_CROSS_HATCH = wxHATCHSTYLE_CROSS,
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wxPENSTYLE_HORIZONTAL_HATCH = wxHATCHSTYLE_HORIZONTAL,
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wxPENSTYLE_VERTICAL_HATCH = wxHATCHSTYLE_VERTICAL,
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wxPENSTYLE_FIRST_HATCH = wxHATCHSTYLE_FIRST,
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wxPENSTYLE_LAST_HATCH = wxHATCHSTYLE_LAST
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};
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enum wxPenJoin
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{
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wxJOIN_INVALID = -1,
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wxJOIN_BEVEL = 120,
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wxJOIN_MITER,
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wxJOIN_ROUND
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};
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enum wxPenCap
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{
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wxCAP_INVALID = -1,
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wxCAP_ROUND = 130,
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wxCAP_PROJECTING,
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wxCAP_BUTT
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};
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// ----------------------------------------------------------------------------
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// wxPenInfoBase is a common base for wxPenInfo and wxGraphicsPenInfo
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// ----------------------------------------------------------------------------
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// This class uses CRTP, the template parameter is the derived class itself.
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template <class T>
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class wxPenInfoBase
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{
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public:
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// Setters for the various attributes. All of them return the object itself
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// so that the calls to them could be chained.
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T& Colour(const wxColour& colour)
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{ m_colour = colour; return This(); }
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T& Style(wxPenStyle style)
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{ m_style = style; return This(); }
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T& Stipple(const wxBitmap& stipple)
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{ m_stipple = stipple; m_style = wxPENSTYLE_STIPPLE; return This(); }
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T& Dashes(int nb_dashes, const wxDash *dash)
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{ m_nb_dashes = nb_dashes; m_dash = const_cast<wxDash*>(dash); return This(); }
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T& Join(wxPenJoin join)
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{ m_join = join; return This(); }
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T& Cap(wxPenCap cap)
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{ m_cap = cap; return This(); }
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// Accessors are mostly meant to be used by wxWidgets itself.
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wxColour GetColour() const { return m_colour; }
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wxBitmap GetStipple() const { return m_stipple; }
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wxPenStyle GetStyle() const { return m_style; }
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wxPenJoin GetJoin() const { return m_join; }
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wxPenCap GetCap() const { return m_cap; }
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int GetDashes(wxDash **ptr) const { *ptr = m_dash; return m_nb_dashes; }
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int GetDashCount() const { return m_nb_dashes; }
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wxDash* GetDash() const { return m_dash; }
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// Convenience
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bool IsTransparent() const { return m_style == wxPENSTYLE_TRANSPARENT; }
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protected:
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wxPenInfoBase(const wxColour& colour, wxPenStyle style)
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: m_colour(colour)
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{
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m_nb_dashes = 0;
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m_dash = NULL;
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m_join = wxJOIN_ROUND;
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m_cap = wxCAP_ROUND;
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m_style = style;
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}
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private:
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// Helper to return this object itself cast to its real type T.
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T& This() { return static_cast<T&>(*this); }
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wxColour m_colour;
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wxBitmap m_stipple;
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wxPenStyle m_style;
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wxPenJoin m_join;
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wxPenCap m_cap;
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int m_nb_dashes;
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wxDash* m_dash;
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};
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#endif // _WX_PENINFOBASE_H_
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