mirror of https://github.com/PCSX2/pcsx2.git
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/custombgwin.h
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// Purpose: Generic implementation of wxCustomBackgroundWindow.
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// Author: Vadim Zeitlin
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// Created: 2011-10-10
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// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GENERIC_CUSTOMBGWIN_H_
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#define _WX_GENERIC_CUSTOMBGWIN_H_
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#include "wx/bitmap.h"
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// A helper to avoid template bloat: this class contains all type-independent
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// code of wxCustomBackgroundWindow<> below.
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class wxCustomBackgroundWindowGenericBase : public wxCustomBackgroundWindowBase
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{
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public:
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wxCustomBackgroundWindowGenericBase() { }
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protected:
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void DoEraseBackground(wxEraseEvent& event, wxWindow* win)
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{
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wxDC& dc = *event.GetDC();
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const wxSize clientSize = win->GetClientSize();
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const wxSize bitmapSize = m_bitmapBg.GetSize();
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for ( int x = 0; x < clientSize.x; x += bitmapSize.x )
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{
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for ( int y = 0; y < clientSize.y; y += bitmapSize.y )
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{
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dc.DrawBitmap(m_bitmapBg, x, y);
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}
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}
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}
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// The bitmap used for painting the background if valid.
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wxBitmap m_bitmapBg;
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wxDECLARE_NO_COPY_CLASS(wxCustomBackgroundWindowGenericBase);
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};
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// ----------------------------------------------------------------------------
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// wxCustomBackgroundWindow
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// ----------------------------------------------------------------------------
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template <class W>
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class wxCustomBackgroundWindow : public W,
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public wxCustomBackgroundWindowGenericBase
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{
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public:
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typedef W BaseWindowClass;
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wxCustomBackgroundWindow() { }
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protected:
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virtual void DoSetBackgroundBitmap(const wxBitmap& bmp)
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{
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m_bitmapBg = bmp;
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if ( m_bitmapBg.IsOk() )
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{
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BaseWindowClass::Connect
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(
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wxEVT_ERASE_BACKGROUND,
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wxEraseEventHandler(wxCustomBackgroundWindow::OnEraseBackground)
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);
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}
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else
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{
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BaseWindowClass::Disconnect
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(
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wxEVT_ERASE_BACKGROUND,
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wxEraseEventHandler(wxCustomBackgroundWindow::OnEraseBackground)
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);
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}
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}
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private:
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// Event handler for erasing the background which is only used when we have
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// a valid background bitmap.
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void OnEraseBackground(wxEraseEvent& event)
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{
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DoEraseBackground(event, this);
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}
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wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxCustomBackgroundWindow, W);
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};
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#endif // _WX_GENERIC_CUSTOMBGWIN_H_
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