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