wxWidgets/include/wx/msw/private/dc.h
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

148 lines
3.5 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/private/dc.h
// Purpose: private wxMSW helpers for working with HDCs
// Author: Vadim Zeitlin
// Created: 2009-06-16 (extracted from src/msw/dc.cpp)
// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _MSW_PRIVATE_DC_H_
#define _MSW_PRIVATE_DC_H_
#include "wx/msw/dc.h"
#include "wx/msw/wrapwin.h"
namespace wxMSWImpl
{
// various classes to change some DC property temporarily
// text background and foreground colours
class wxTextColoursChanger
{
public:
wxTextColoursChanger(HDC hdc, const wxMSWDCImpl& dc)
: m_hdc(hdc)
{
Change(dc.GetTextForeground(), dc.GetTextBackground());
}
wxTextColoursChanger(HDC hdc, const wxColour& colFg, const wxColour& colBg)
: m_hdc(hdc)
{
Change(colFg, colBg);
}
wxTextColoursChanger(HDC hdc, COLORREF colFg, COLORREF colBg)
: m_hdc(hdc)
{
Change(colFg, colBg);
}
~wxTextColoursChanger()
{
if ( m_oldColFg != CLR_INVALID )
::SetTextColor(m_hdc, m_oldColFg);
if ( m_oldColBg != CLR_INVALID )
::SetBkColor(m_hdc, m_oldColBg);
}
protected:
// this ctor doesn't change mode immediately, call Change() later to do it
// only if needed
wxTextColoursChanger(HDC hdc)
: m_hdc(hdc)
{
m_oldColFg =
m_oldColBg = CLR_INVALID;
}
void Change(const wxColour& colFg, const wxColour& colBg)
{
Change(colFg.IsOk() ? colFg.GetPixel() : CLR_INVALID,
colBg.IsOk() ? colBg.GetPixel() : CLR_INVALID);
}
void Change(COLORREF colFg, COLORREF colBg)
{
if ( colFg != CLR_INVALID )
{
m_oldColFg = ::SetTextColor(m_hdc, colFg);
if ( m_oldColFg == CLR_INVALID )
{
wxLogLastError(wxT("SetTextColor"));
}
}
else
{
m_oldColFg = CLR_INVALID;
}
if ( colBg != CLR_INVALID )
{
m_oldColBg = ::SetBkColor(m_hdc, colBg);
if ( m_oldColBg == CLR_INVALID )
{
wxLogLastError(wxT("SetBkColor"));
}
}
else
{
m_oldColBg = CLR_INVALID;
}
}
private:
const HDC m_hdc;
COLORREF m_oldColFg,
m_oldColBg;
wxDECLARE_NO_COPY_CLASS(wxTextColoursChanger);
};
// background mode
class wxBkModeChanger
{
public:
// set background mode to opaque if mode != wxBRUSHSTYLE_TRANSPARENT
wxBkModeChanger(HDC hdc, int mode)
: m_hdc(hdc)
{
Change(mode);
}
~wxBkModeChanger()
{
if ( m_oldMode )
::SetBkMode(m_hdc, m_oldMode);
}
protected:
// this ctor doesn't change mode immediately, call Change() later to do it
// only if needed
wxBkModeChanger(HDC hdc) : m_hdc(hdc) { m_oldMode = 0; }
void Change(int mode)
{
m_oldMode = ::SetBkMode(m_hdc, mode == wxBRUSHSTYLE_TRANSPARENT
? TRANSPARENT
: OPAQUE);
if ( !m_oldMode )
{
wxLogLastError(wxT("SetBkMode"));
}
}
private:
const HDC m_hdc;
int m_oldMode;
wxDECLARE_NO_COPY_CLASS(wxBkModeChanger);
};
} // namespace wxMSWImpl
#endif // _MSW_PRIVATE_DC_H_