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125af16c9b
- Begin implementing handling WM_NCPAINT - Evert time a draw operation is performed on the non client area, a DRAW_CONTEXT will be initialised in order to keep most used information about the drawing opoeration svn path=/branches/GSoC_2011/ThemesSupport/; revision=51746
103 lines
2.1 KiB
C
103 lines
2.1 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS uxtheme.dll
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* FILE: dll/win32/uxtheme/themehooks.c
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* PURPOSE: uxtheme non client area management
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* PROGRAMMER: Giannis Adamopoulos
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*/
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#include <windows.h>
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#include "undocuser.h"
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#include "vfwmsgs.h"
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#include "uxtheme.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
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typedef struct _DRAW_CONTEXT
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{
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HWND hWnd;
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HDC hDC;
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HTHEME theme;
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WINDOWINFO wi;
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HRGN hRgn;
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} DRAW_CONTEXT, *PDRAW_CONTEXT;
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static void
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ThemeInitDrawContext(PDRAW_CONTEXT pcontext,
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HWND hWnd,
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HRGN hRgn)
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{
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GetWindowInfo(hWnd, &pcontext->wi);
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pcontext->hWnd = hWnd;
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pcontext->theme = OpenThemeData(pcontext->hWnd, L"WINDOW");
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if(hRgn <= 0)
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{
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hRgn = CreateRectRgnIndirect(&pcontext->wi.rcWindow);
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pcontext->hRgn = hRgn;
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}
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else
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{
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pcontext->hRgn = 0;
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}
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pcontext->hDC = GetDCEx(hWnd, hRgn, DCX_WINDOW | DCX_INTERSECTRGN | DCX_USESTYLE | DCX_KEEPCLIPRGN);
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}
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static void
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ThemeCleanupDrawContext(PDRAW_CONTEXT pcontext)
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{
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ReleaseDC(pcontext->hWnd ,pcontext->hDC);
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CloseThemeData (pcontext->theme);
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if(pcontext->hRgn != NULL)
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{
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DeleteObject(pcontext->hRgn);
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}
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}
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/*
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Message handlers
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*/
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static void
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ThemePaintWindow(PDRAW_CONTEXT pcontext, RECT* prcCurrent)
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{
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UNIMPLEMENTED;
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}
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static LRESULT
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ThemeHandleNCPaint(HWND hWnd, HRGN hRgn)
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{
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DRAW_CONTEXT context;
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RECT rcCurrent;
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ThemeInitDrawContext(&context, hWnd, hRgn);
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rcCurrent = context.wi.rcWindow;
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OffsetRect( &rcCurrent, -context.wi.rcWindow.left, -context.wi.rcWindow.top);
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ThemePaintWindow(&context, &rcCurrent);
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ThemeCleanupDrawContext(&context);
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return 0;
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}
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LRESULT CALLBACK
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ThemeWndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, WNDPROC DefWndProc)
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{
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switch(Msg)
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{
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case WM_NCPAINT:
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return ThemeHandleNCPaint(hWnd, (HRGN)wParam);
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case WM_NCACTIVATE:
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ThemeHandleNCPaint(hWnd, (HRGN)1);
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return TRUE;
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default:
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return DefWndProc(hWnd, Msg, wParam, lParam);
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}
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}
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