wxWidgets/include/wx/ribbon/art_internal.h

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/ribbon/art_internal.h
// Purpose: Helper functions & classes used by ribbon art providers
// Author: Peter Cawley
// Modified by:
// Created: 2009-08-04
// Copyright: (C) Peter Cawley
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_RIBBON_ART_INTERNAL_H_
#define _WX_RIBBON_ART_INTERNAL_H_
#include "wx/defs.h"
#if wxUSE_RIBBON
WXDLLIMPEXP_RIBBON wxColour wxRibbonInterpolateColour(
const wxColour& start_colour,
const wxColour& end_colour,
int position,
int start_position,
int end_position);
WXDLLIMPEXP_RIBBON bool wxRibbonCanLabelBreakAtPosition(
const wxString& label,
size_t pos);
WXDLLIMPEXP_RIBBON void wxRibbonDrawParallelGradientLines(
wxDC& dc,
int nlines,
const wxPoint* line_origins,
int stepx,
int stepy,
int numsteps,
int offset_x,
int offset_y,
const wxColour& start_colour,
const wxColour& end_colour);
WXDLLIMPEXP_RIBBON wxBitmap wxRibbonLoadPixmap(
const char* const* bits,
wxColour fore);
/*
HSL colour class, using interface as discussed in wx-dev. Provided mainly
for art providers to perform colour scheme calculations in the HSL colour
space. If such a class makes it into base / core, then this class should be
removed and users switched over to the one in base / core.
0.0 <= Hue < 360.0
0.0 <= Saturation <= 1.0
0.0 <= Luminance <= 1.0
*/
class WXDLLIMPEXP_RIBBON wxRibbonHSLColour
{
public:
wxRibbonHSLColour()
: hue(0.0), saturation(0.0), luminance(0.0) {}
wxRibbonHSLColour(float H, float S, float L)
: hue(H), saturation(S), luminance(L) { }
wxRibbonHSLColour(const wxColour& C);
wxColour ToRGB() const;
wxRibbonHSLColour& MakeDarker(float delta);
wxRibbonHSLColour Darker(float delta) const;
wxRibbonHSLColour Lighter(float delta) const;
wxRibbonHSLColour Saturated(float delta) const;
wxRibbonHSLColour Desaturated(float delta) const;
wxRibbonHSLColour ShiftHue(float delta) const;
float hue, saturation, luminance;
};
WXDLLIMPEXP_RIBBON wxRibbonHSLColour wxRibbonShiftLuminance(
wxRibbonHSLColour colour, float amount);
#endif // wxUSE_RIBBON
#endif // _WX_RIBBON_ART_INTERNAL_H_