diff options
Diffstat (limited to 'fpicker/source/win32/filepicker/PreviewCtrl.cxx')
| -rw-r--r-- | fpicker/source/win32/filepicker/PreviewCtrl.cxx | 617 |
1 files changed, 0 insertions, 617 deletions
diff --git a/fpicker/source/win32/filepicker/PreviewCtrl.cxx b/fpicker/source/win32/filepicker/PreviewCtrl.cxx deleted file mode 100644 index 6db88fec3e..0000000000 --- a/fpicker/source/win32/filepicker/PreviewCtrl.cxx +++ /dev/null @@ -1,617 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - -// MARKER(update_precomp.py): autogen include statement, do not remove -#include "precompiled_fpicker.hxx" - -//------------------------------------------------------------------------ -// includes -//------------------------------------------------------------------------ - -#include <tchar.h> -#include "PreviewCtrl.hxx" -#include <osl/diagnose.h> - -#if defined _MSC_VER -#pragma warning(push, 1) -#endif -#include <windows.h> -#if defined _MSC_VER -#pragma warning(pop) -#endif -#include <ocidl.h> -#include <olectl.h> - -//------------------------------------------------------------------------ -// defines -//------------------------------------------------------------------------ - -#define PREVIEWWND_CLASS_NAME TEXT("PreviewWnd###") - -#define HIMETRIC_INCH 2540 - -// means 3 pixel left and 3 pixel right -#define HORZ_BODER_SPACE 6 - -// means 3 pixel top and 3 pixel bottom -#define VERT_BORDER_SPACE 6 - -//--------------------------------------------------- -// static member initialization -//--------------------------------------------------- - -CFilePreview* CFilePreview::s_FilePreviewInst = NULL; -CFilePreview::FILEPREVIEW_SINGLETON_DESTROYER_T CFilePreview::s_SingletonDestroyer; - -//--------------------------------------------------- -// some useful helper functions -//--------------------------------------------------- - -namespace // private -{ - class CPreviewException - { - // used when registering or creation - // of the preview window failed - }; - - //------------------------------------------------------------ - // - //------------------------------------------------------------ - - inline - sal_Int32 SubDiv( sal_Int32 nNumber, sal_Int32 nMinuend, sal_Int32 nDenominator ) - { - return ( static_cast<sal_Int32>( ( nNumber - nMinuend ) / nDenominator ) ); - } - - //------------------------------------------------------------ - // convert himetric to pixel - //------------------------------------------------------------ - - inline - sal_Int32 Himetric2Pixel( HDC hDC, sal_Int32 hmSize, sal_Int32 nIndex ) - { - return MulDiv( hmSize, GetDeviceCaps( hDC, nIndex), HIMETRIC_INCH ); - } - - //------------------------------------------------------------ - // - //------------------------------------------------------------ - - inline - sal_uInt32 _getWidthRect( const RECT& aRect ) - { - return ( aRect.right - aRect.left ); - } - - //------------------------------------------------------------ - // - //------------------------------------------------------------ - - inline - sal_uInt32 _getHeightRect( const RECT& aRect ) - { - return ( aRect.bottom - aRect.top ); - } - - //------------------------------------------------------------ - // calc the upper left corner so that a given window will be - // displayed centered within the given window - //------------------------------------------------------------ - - inline - POINT _calcULCorner( HWND hwnd, const CDimension& aPicSize ) - { - RECT rect; - GetClientRect( hwnd, &rect ); - - sal_Int32 nWidthWnd = _getWidthRect( rect ); - sal_Int32 nHeightWnd = _getHeightRect( rect ); - - POINT ulCorner; - ulCorner.x = SubDiv( nWidthWnd, aPicSize.m_cx, 2 ); - ulCorner.y = SubDiv( nHeightWnd, aPicSize.m_cy, 2 ); - - return ulCorner; - } - - //------------------------------------------------------------ - // test if a picture with the given dimensions fits into an - // arbitrary window - // we expect the width and height to be in pixel - //------------------------------------------------------------ - - inline - sal_Bool _pictureSizeFitsWindowSize( HWND hwnd, const CDimension& aPicSize ) - { - RECT rect; - GetClientRect( hwnd, &rect ); - - sal_Int32 nWidthWnd = _getWidthRect( rect ); - sal_Int32 nHeightWnd = _getHeightRect( rect ); - - return ( ( ( nWidthWnd - HORZ_BODER_SPACE ) >= aPicSize.m_cx ) && - ( ( nHeightWnd - VERT_BORDER_SPACE ) >= aPicSize.m_cy ) ); - } - - //------------------------------------------------------------ - // calc the dimemsions so that a given picture fits into a - // given window, if the picture fits into the given window - // the original CDimension will be returned - //------------------------------------------------------------ - - inline - CDimension _scalePictureSize( HWND hwnd, const CDimension& aPicSize ) - { - CDimension scaledPicSize = aPicSize; - - if ( !_pictureSizeFitsWindowSize( hwnd, aPicSize ) ) - { - RECT rect; - GetClientRect( hwnd, &rect ); - - // the dimensions of the preview wnd are not equal - // that's why we equalize it - sal_Int32 nHeightWnd = _getHeightRect( rect ) - VERT_BORDER_SPACE; - sal_Int32 nWidthWnd = nHeightWnd; - - if ( aPicSize.m_cx >= aPicSize.m_cy ) - { - scaledPicSize.m_cx = nWidthWnd; - scaledPicSize.m_cy = - static_cast< sal_Int32 >( - aPicSize.m_cy * nWidthWnd / aPicSize.m_cx ); - } - else - { - scaledPicSize.m_cx = - static_cast< sal_Int32 >( - aPicSize.m_cx * nHeightWnd / aPicSize.m_cy ); - scaledPicSize.m_cy = nHeightWnd; - } - } - - return scaledPicSize; - } - -} // end namespace - - -//--------------------------------------------------- -// to ensure only one instance (singleton) -//--------------------------------------------------- - -CFilePreview* CFilePreview::createInstance( - HWND aParent, - POINT ulCorner, - const CDimension& aSize, - HINSTANCE hInstance, - sal_Bool bShow, - sal_Bool bEnabled ) -{ - if ( !s_FilePreviewInst ) - { - try - { - s_FilePreviewInst = new CFilePreview( - aParent, ulCorner, aSize, hInstance, bShow, bEnabled ); - s_SingletonDestroyer.reset( s_FilePreviewInst ); - } - catch( CPreviewException& ) - { - OSL_ASSERT( !s_FilePreviewInst ); - OSL_FAIL( "Creation of the preview window failed" ); - } - catch( CAutoOleInit::COleInitException& ) - { - OSL_ASSERT( !s_FilePreviewInst ); - OSL_FAIL( "OleInitalize failed" ); - } - } - - return s_FilePreviewInst; -} - -//--------------------------------------------------- -// -//--------------------------------------------------- - -CFilePreview::CFilePreview( - HWND aParent, - POINT ulCorner, - const CDimension& aSize, - HINSTANCE hInstance, - sal_Bool bShow, - sal_Bool bEnabled ) : - m_hInstance( hInstance ), - m_bEnabled( bEnabled ) -{ - // register the preview window class - WNDCLASSEX wndClsEx; - ZeroMemory(&wndClsEx, sizeof(wndClsEx)); - - wndClsEx.cbSize = sizeof(wndClsEx); - wndClsEx.style = CS_HREDRAW | CS_VREDRAW; - wndClsEx.lpfnWndProc = CFilePreview::WndProc; - wndClsEx.hInstance = m_hInstance; - wndClsEx.hbrBackground = (HBRUSH)( COLOR_INACTIVEBORDER + 1 ); - wndClsEx.lpszClassName = PREVIEWWND_CLASS_NAME; - - // register the preview window class - // !!! Win95 - the window class will be unregistered automaticly - // if the dll is unloaded - // Win2000 - the window class must be unregistered manually - // if the dll is unloaded - m_atomPrevWndClass = RegisterClassEx(&wndClsEx); - if ( !m_atomPrevWndClass ) - throw CPreviewException( ); - - // create the preview window in invisible state - sal_uInt32 dwStyle = bShow ? (WS_CHILD | WS_VISIBLE) : WS_CHILD; - m_hwnd = CreateWindowEx( - WS_EX_CLIENTEDGE, - PREVIEWWND_CLASS_NAME, - TEXT(""), - dwStyle, - ulCorner.x, - ulCorner.y, - aSize.m_cx, - aSize.m_cy, - aParent, - (HMENU)100, // for child windows this will - // be used as child window identifier - m_hInstance, - 0 ); - if (!IsWindow(m_hwnd)) - throw CPreviewException( ); -} - -//--------------------------------------------------- -// -//--------------------------------------------------- - -CFilePreview::~CFilePreview( ) -{ - // unregister preview window class - sal_Bool bRet = UnregisterClass( - (LPCTSTR)MAKELONG( m_atomPrevWndClass, 0 ), - m_hInstance ); - OSL_POSTCOND( bRet, "Unregister preview window class failed" ); -} - -//--------------------------------------------------- -// sets the size of the preview window -//--------------------------------------------------- - -sal_Bool SAL_CALL CFilePreview::setSize( const CDimension& aSize ) -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - // resize the fileopen file listbox - return SetWindowPos( - m_hwnd, - NULL, - 0, - 0, - aSize.m_cx, - aSize.m_cy, - SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE ); -} - -//--------------------------------------------------- -// returns the dimension of the preview -//--------------------------------------------------- - -sal_Bool SAL_CALL CFilePreview::getSize( CDimension& theSize ) const -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - RECT rect; - sal_Bool bRet = GetWindowRect( m_hwnd, &rect ); - - theSize.m_cx = _getWidthRect( rect ); - theSize.m_cy = _getHeightRect( rect ); - - return bRet; -} - -//--------------------------------------------------- -// sets the position of the upper left corner -// of the preview window relative to the -// upper left corner of the parent window -//--------------------------------------------------- - -sal_Bool SAL_CALL CFilePreview::setPos( POINT ulCorner ) -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - // resize the fileopen file listbox - return SetWindowPos( - m_hwnd, - NULL, - ulCorner.x, - ulCorner.y, - 0, - 0, - SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE ); -} - -//--------------------------------------------------- -// returns the current position of the preview -// relative to the upper left corner of the -// parent window -//--------------------------------------------------- - -sal_Bool SAL_CALL CFilePreview::getPos( POINT& ulCorner ) const -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - POINT pt = { 0, 0 }; - RECT rect; - - sal_Bool bRet = GetWindowRect( m_hwnd, &rect ); - - ulCorner.x = rect.left; - ulCorner.y = rect.top; - - ScreenToClient( m_hwnd, &ulCorner ); - - return bRet; -} - -//--------------------------------------------------- -// -//--------------------------------------------------- - -void SAL_CALL CFilePreview::enable( sal_Bool bEnable ) -{ - m_bEnabled = bEnable; - - // force a redraw - InvalidateRect( m_hwnd, NULL, sal_True ); - UpdateWindow( m_hwnd ); -} - -//--------------------------------------------------- -// shows the preview window -// possible values see SHOW_STATE -// SS_SHOW - make the window visible -// SS_HIDE - hide the window -// SS_ENABLED - enable the window -// SS_DISABLED - disable the window -//--------------------------------------------------- - -sal_Bool SAL_CALL CFilePreview::show( sal_Bool bShow ) -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - sal_Int32 showState = bShow ? SW_SHOW : SW_HIDE; - return ShowWindow( m_hwnd, showState ); -} - -//--------------------------------------------------- -// if the preview is shown and enabled -// preview of the given file will be shown -// returns true on success or false if an error -// occurred (the file in not there or not accessible etc.) -//--------------------------------------------------- - -sal_Bool SAL_CALL CFilePreview::update( const rtl::OUString& aFileName ) -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - try - { - if ( m_bEnabled ) - { - if ( m_IPicture ) - m_IPicture.Release( ); - - loadFile( aFileName ); - - // force a complete window redraw - InvalidateRect( m_hwnd, NULL, sal_True ); - UpdateWindow( m_hwnd ); - } - } - catch( _com_error& ) - { - } - - return sal_True; -} - -//--------------------------------------------------- -// -//--------------------------------------------------- - -void SAL_CALL CFilePreview::onPaint( HWND hWnd, HDC hDC ) -{ - OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" ); - - try - { - if ( m_bEnabled ) - { - // get width and height of picture - long cxPicHIMETRIC; - long cyPicHIMETRIC; - - m_IPicture->get_Width( &cxPicHIMETRIC ); - m_IPicture->get_Height( &cyPicHIMETRIC ); - - // convert himetric to pixels - int cxPicPIXEL = Himetric2Pixel( hDC, cxPicHIMETRIC, LOGPIXELSX ); - int cyPicPIXEL = Himetric2Pixel( hDC, cyPicHIMETRIC, LOGPIXELSY ); - - // scale the picture based on the size of the preview window - RECT rcPrevWnd; - GetClientRect(hWnd, &rcPrevWnd); - - CDimension scaledPicSize = _scalePictureSize( - hWnd, CDimension( cxPicPIXEL, cyPicPIXEL ) ); - - // calc the upper left corner so that the picture - // is centered within the window - POINT ulCorner = _calcULCorner( hWnd, scaledPicSize ); - - // render the picture - HRESULT hr = m_IPicture->Render( - hDC, - ulCorner.x, - ulCorner.y, - scaledPicSize.m_cx, - scaledPicSize.m_cy, - 0, - cyPicHIMETRIC, - cxPicHIMETRIC, - -cyPicHIMETRIC, - &rcPrevWnd ); - } // end if ( m_bEnabled ) - } - catch( _com_error& ) - { - } -} - -//--------------------------------------------------- -// -//--------------------------------------------------- - -sal_Bool CFilePreview::loadFile( const rtl::OUString& aFileName ) -{ - HANDLE hFile = 0; - HGLOBAL hGlobal = 0; - LPVOID pData = NULL; - IStreamPtr pIStream; - HRESULT hr = E_FAIL; - sal_Bool bRet; - sal_uInt32 nBytesRead; - sal_uInt32 fszExtra; - sal_uInt32 fsize; - - hFile = CreateFile( - aFileName.getStr( ), - GENERIC_READ, - 0, - NULL, - OPEN_EXISTING, - 0, - NULL ); - if ( INVALID_HANDLE_VALUE == hFile ) - goto CLEANUP_AND_EXIT; - - fszExtra = 0; - fsize = GetFileSize( hFile, &fszExtra ); - - // empty file, error or file to big - if ( -1 == fsize || 0 == fsize || fszExtra ) - goto CLEANUP_AND_EXIT; - - hGlobal = GlobalAlloc( GMEM_MOVEABLE, fsize ); - if ( !hGlobal ) - goto CLEANUP_AND_EXIT; - - pData = GlobalLock( hGlobal ); - if ( !pData ) - goto CLEANUP_AND_EXIT; - - bRet = ReadFile( - hFile, pData, fsize, &nBytesRead, NULL ); - - if ( !bRet ) - goto CLEANUP_AND_EXIT; - - hr = CreateStreamOnHGlobal( - hGlobal, sal_False, &pIStream ); - - if ( SUCCEEDED( hr ) ) - { - hr = OleLoadPicture( - pIStream, fsize, sal_False, - __uuidof( IPicture ), (LPVOID*)&m_IPicture ); - } - -CLEANUP_AND_EXIT: - if ( hFile ) - CloseHandle( hFile ); - - if ( pData ) - GlobalUnlock( hGlobal ); - - if ( hGlobal ) - GlobalFree( hGlobal ); - - return ( SUCCEEDED( hr ) ); -} - -//--------------------------------------------------- -// -//--------------------------------------------------- - -LRESULT CALLBACK CFilePreview::WndProc( - HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) -{ - LRESULT lResult = 0; - - switch( uMsg ) - { - case WM_PAINT: - { - OSL_PRECOND( s_FilePreviewInst, "Static member not initialized" ); - - HDC hDC; - PAINTSTRUCT ps; - - hDC = BeginPaint( hWnd, &ps ); - s_FilePreviewInst->onPaint( hWnd, hDC ); - EndPaint( hWnd, &ps ); - } - break; - - // under windows 95/98 the creation of the - // hidden target request window fails if - // we don't handle this message ourself - // because the DefWindowProc returns 0 as - // a result of handling WM_NCCREATE what - // leads to a failure of CreateWindow[Ex]!!! - case WM_NCCREATE: - lResult = sal_True; - break; - - default: - return DefWindowProc( hWnd, uMsg, wParam, lParam ); - } - - return lResult; -} - - - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |