38c4cb6aa7
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22154 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
121 lines
4.5 KiB
C++
121 lines
4.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/renderer.h
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// Purpose: wxRendererNative class declaration
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 20.07.2003
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// RCS-ID: $Id$
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// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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/*
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Renderers are used in wxWindows for two similar but different things:
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(a) wxUniversal uses them to draw everything, i.e. all the control
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(b) all the native ports use them to draw generic controls only
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wxUniversal needs more functionality than what is included in the base class
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as it needs to draw stuff like scrollbars which are never going to be
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generic. So we put the bare minimum needed by the native ports here and the
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full wxRenderer class is declared in wx/univ/renderer.h and is only used by
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wxUniveral (although note that native ports can load wxRenderer objects from
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theme DLLs and use them as wxRendererNative ones, of course).
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*/
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#ifndef _WX_RENDERER_H_
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#define _WX_RENDERER_H_
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class WXDLLEXPORT wxDC;
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class WXDLLEXPORT wxRect;
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class WXDLLEXPORT wxWindow;
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// control state flags used in wxRenderer and wxColourScheme
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enum
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{
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wxCONTROL_DISABLED = 0x00000001, // control is disabled
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wxCONTROL_FOCUSED = 0x00000002, // currently has keyboard focus
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wxCONTROL_PRESSED = 0x00000004, // (button) is pressed
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wxCONTROL_ISDEFAULT = 0x00000008, // only applies to the buttons
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wxCONTROL_ISSUBMENU = wxCONTROL_ISDEFAULT, // only for menu items
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wxCONTROL_EXPANDED = wxCONTROL_ISDEFAULT, // only for the tree items
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wxCONTROL_CURRENT = 0x00000010, // mouse is currently over the control
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wxCONTROL_SELECTED = 0x00000020, // selected item in e.g. listbox
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wxCONTROL_CHECKED = 0x00000040, // (check/radio button) is checked
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wxCONTROL_CHECKABLE = 0x00000080, // (menu) item can be checked
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wxCONTROL_FLAGS_MASK = 0x000000ff,
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// this is a pseudo flag not used directly by wxRenderer but rather by some
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// controls internally
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wxCONTROL_DIRTY = 0x80000000
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};
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// ----------------------------------------------------------------------------
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// wxRendererNative: abstracts drawing methods needed by the native controls
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxRendererNative
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{
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public:
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// drawing functions
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// -----------------
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// draw the header control button (used by wxListCtrl)
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virtual void DrawHeaderButton(wxWindow *win,
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wxDC& dc,
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const wxRect& rect,
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int flags = 0) = 0;
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// draw the expanded/collapsed icon for a tree control item
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virtual void DrawTreeItemButton(wxWindow *win,
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wxDC& dc,
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const wxRect& rect,
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int flags = 0) = 0;
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// pseudo constructors
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// -------------------
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// return the currently used renderer
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static wxRendererNative& Get();
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// return the generic implementation of the renderer
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static wxRendererNative& GetGeneric();
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};
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// ----------------------------------------------------------------------------
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// wxDelegateRendererNative: allows reuse of renderers code
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxDelegateRendererNative : public wxRendererNative
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{
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public:
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wxDelegateRendererNative()
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: m_rendererNative(GetGeneric()) { }
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wxDelegateRendererNative(wxRendererNative& rendererNative)
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: m_rendererNative(rendererNative) { }
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virtual void DrawHeaderButton(wxWindow *win,
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wxDC& dc,
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const wxRect& rect,
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int flags = 0)
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{ m_rendererNative.DrawHeaderButton(win, dc, rect, flags); }
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virtual void DrawTreeItemButton(wxWindow *win,
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wxDC& dc,
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const wxRect& rect,
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int flags = 0)
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{ m_rendererNative.DrawTreeItemButton(win, dc, rect, flags); }
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protected:
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wxRendererNative& m_rendererNative;
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};
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#endif // _WX_RENDERER_H_
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