1 /* 2 * Copyright (C) 2009 Apple Inc. All Rights Reserved. 3 * Copyright (C) 2009 Brent Fulgham. All Rights Reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "stdafx.h" 28 #include "PrintWebUIDelegate.h" 29 30 #include <commctrl.h> 31 #include <commdlg.h> 32 #include <objbase.h> 33 #include <shlwapi.h> 34 #include <wininet.h> 35 36 #include <WebKit/WebKitCOMAPI.h> 37 38 static const int MARGIN = 20; 39 40 HRESULT PrintWebUIDelegate::QueryInterface(REFIID riid, void** ppvObject) 41 { 42 *ppvObject = 0; 43 if (IsEqualIID(riid, IID_IUnknown)) 44 *ppvObject = static_cast<IWebUIDelegate*>(this); 45 else if (IsEqualIID(riid, IID_IWebUIDelegate)) 46 *ppvObject = static_cast<IWebUIDelegate*>(this); 47 else 48 return E_NOINTERFACE; 49 50 AddRef(); 51 return S_OK; 52 } 53 54 ULONG PrintWebUIDelegate::AddRef(void) 55 { 56 return ++m_refCount; 57 } 58 59 ULONG PrintWebUIDelegate::Release(void) 60 { 61 ULONG newRef = --m_refCount; 62 if (!newRef) 63 delete this; 64 65 return newRef; 66 } 67 68 HRESULT PrintWebUIDelegate::webViewPrintingMarginRect(IWebView* view, RECT* rect) 69 { 70 if (!view || !rect) 71 return E_POINTER; 72 73 IWebFrame* mainFrame = 0; 74 if (FAILED(view->mainFrame(&mainFrame))) 75 return E_FAIL; 76 77 IWebFramePrivate* privateFrame = 0; 78 if (FAILED(mainFrame->QueryInterface(&privateFrame))) { 79 mainFrame->Release(); 80 return E_FAIL; 81 } 82 83 privateFrame->frameBounds(rect); 84 85 rect->left += MARGIN; 86 rect->top += MARGIN; 87 HDC dc = ::GetDC(0); 88 rect->right = (::GetDeviceCaps(dc, LOGPIXELSX) * 6.5) - MARGIN; 89 rect->bottom = (::GetDeviceCaps(dc, LOGPIXELSY) * 11) - MARGIN; 90 ::ReleaseDC(0, dc); 91 92 privateFrame->Release(); 93 mainFrame->Release(); 94 95 return S_OK; 96 } 97 98 HRESULT PrintWebUIDelegate::webViewHeaderHeight(IWebView* webView, float* height) 99 { 100 if (!webView || !height) 101 return E_POINTER; 102 103 HDC dc = ::GetDC(0); 104 105 TEXTMETRIC textMetric; 106 ::GetTextMetrics(dc, &textMetric); 107 ::ReleaseDC(0, dc); 108 109 *height = 1.1 * textMetric.tmHeight; 110 111 return S_OK; 112 } 113 114 HRESULT PrintWebUIDelegate::webViewFooterHeight(IWebView* webView, float* height) 115 { 116 if (!webView || !height) 117 return E_POINTER; 118 119 HDC dc = ::GetDC(0); 120 121 TEXTMETRIC textMetric; 122 ::GetTextMetrics(dc, &textMetric); 123 ::ReleaseDC(0, dc); 124 125 *height = 1.1 * textMetric.tmHeight; 126 127 return S_OK; 128 } 129 130 HRESULT PrintWebUIDelegate::drawHeaderInRect( 131 /* [in] */ IWebView *webView, 132 /* [in] */ RECT *rect, 133 /* [in] */ OLE_HANDLE drawingContext) 134 { 135 if (!webView || !rect) 136 return E_POINTER; 137 138 // Turn off header for now. 139 HDC dc = reinterpret_cast<HDC>(drawingContext); 140 141 HFONT hFont = (HFONT)::GetStockObject(ANSI_VAR_FONT); 142 HFONT hOldFont = (HFONT)::SelectObject(dc, hFont); 143 144 LPCTSTR header(_T("[Sample Header]")); 145 int length = _tcslen(header); 146 147 int rc = ::DrawText(dc, header, length, rect, DT_LEFT | DT_NOCLIP | DT_VCENTER | DT_SINGLELINE); 148 ::SelectObject(dc, hOldFont); 149 150 if (!rc) 151 return E_FAIL; 152 153 ::MoveToEx(dc, rect->left, rect->bottom, 0); 154 HPEN hPen = (HPEN)::GetStockObject(BLACK_PEN); 155 HPEN hOldPen = (HPEN)::SelectObject(dc, hPen); 156 ::LineTo(dc, rect->right, rect->bottom); 157 ::SelectObject(dc, hOldPen); 158 159 return S_OK; 160 } 161 162 HRESULT PrintWebUIDelegate::drawFooterInRect( 163 /* [in] */ IWebView *webView, 164 /* [in] */ RECT *rect, 165 /* [in] */ OLE_HANDLE drawingContext, 166 /* [in] */ UINT pageIndex, 167 /* [in] */ UINT pageCount) 168 { 169 if (!webView || !rect) 170 return E_POINTER; 171 172 HDC dc = reinterpret_cast<HDC>(drawingContext); 173 174 HFONT hFont = (HFONT)::GetStockObject(ANSI_VAR_FONT); 175 HFONT hOldFont = (HFONT)::SelectObject(dc, hFont); 176 177 LPCTSTR footer(_T("[Sample Footer]")); 178 int length = _tcslen(footer); 179 180 // Add a line, 1/10th inch above the footer text from left margin to right margin. 181 ::MoveToEx(dc, rect->left, rect->top, 0); 182 HPEN hPen = (HPEN)::GetStockObject(BLACK_PEN); 183 HPEN hOldPen = (HPEN)::SelectObject(dc, hPen); 184 ::LineTo(dc, rect->right, rect->top); 185 ::SelectObject(dc, hOldPen); 186 187 int rc = ::DrawText(dc, footer, length, rect, DT_LEFT | DT_NOCLIP | DT_VCENTER | DT_SINGLELINE); 188 ::SelectObject(dc, hOldFont); 189 190 if (!rc) 191 return E_FAIL; 192 193 return S_OK; 194 } 195
