Lei Zhang | 9429368 | 2016-01-27 18:27:56 -0800 | [diff] [blame^] | 1 | // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | |
| 7 | #include "fpdfsdk/include/fsdk_define.h" |
| 8 | #include "fpdfsdk/include/fsdk_mgr.h" |
| 9 | #include "fpdfsdk/include/fpdfxfa/fpdfxfa_util.h" |
| 10 | #include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h" |
| 11 | #include "fpdfsdk/include/fpdfxfa/fpdfxfa_page.h" |
| 12 | |
| 13 | CPDFXFA_Page::CPDFXFA_Page(CPDFXFA_Document* pDoc, int page_index) |
| 14 | : m_pPDFPage(NULL), |
| 15 | m_pXFAPageView(NULL), |
| 16 | m_iPageIndex(page_index), |
| 17 | m_pDocument(pDoc), |
| 18 | m_iRef(1) {} |
| 19 | |
| 20 | CPDFXFA_Page::~CPDFXFA_Page() { |
| 21 | if (m_pPDFPage) |
| 22 | delete m_pPDFPage; |
| 23 | m_pPDFPage = NULL; |
| 24 | m_pXFAPageView = NULL; |
| 25 | } |
| 26 | |
| 27 | void CPDFXFA_Page::Release() { |
| 28 | m_iRef--; |
| 29 | if (m_iRef > 0) |
| 30 | return; |
| 31 | |
| 32 | if (m_pDocument) |
| 33 | m_pDocument->RemovePage(this); |
| 34 | |
| 35 | delete this; |
| 36 | } |
| 37 | |
| 38 | FX_BOOL CPDFXFA_Page::LoadPDFPage() { |
| 39 | if (!m_pDocument) |
| 40 | return FALSE; |
| 41 | CPDF_Document* pPDFDoc = m_pDocument->GetPDFDoc(); |
| 42 | if (pPDFDoc) { |
| 43 | CPDF_Dictionary* pDict = pPDFDoc->GetPage(m_iPageIndex); |
| 44 | if (pDict == NULL) |
| 45 | return FALSE; |
| 46 | if (m_pPDFPage) { |
| 47 | if (m_pPDFPage->m_pFormDict == pDict) |
| 48 | return TRUE; |
| 49 | |
| 50 | delete m_pPDFPage; |
| 51 | m_pPDFPage = NULL; |
| 52 | } |
| 53 | |
| 54 | m_pPDFPage = new CPDF_Page; |
| 55 | m_pPDFPage->Load(pPDFDoc, pDict); |
| 56 | m_pPDFPage->ParseContent(nullptr); |
| 57 | return TRUE; |
| 58 | } |
| 59 | |
| 60 | return FALSE; |
| 61 | } |
| 62 | |
| 63 | FX_BOOL CPDFXFA_Page::LoadXFAPageView() { |
| 64 | if (!m_pDocument) |
| 65 | return FALSE; |
| 66 | IXFA_Doc* pXFADoc = m_pDocument->GetXFADoc(); |
| 67 | if (!pXFADoc) |
| 68 | return FALSE; |
| 69 | |
| 70 | IXFA_DocView* pXFADocView = m_pDocument->GetXFADocView(); |
| 71 | if (!pXFADocView) |
| 72 | return FALSE; |
| 73 | |
| 74 | IXFA_PageView* pPageView = pXFADocView->GetPageView(m_iPageIndex); |
| 75 | if (!pPageView) |
| 76 | return FALSE; |
| 77 | |
| 78 | if (m_pXFAPageView == pPageView) |
| 79 | return TRUE; |
| 80 | |
| 81 | m_pXFAPageView = pPageView; |
| 82 | (void)m_pXFAPageView->LoadPageView(nullptr); |
| 83 | return TRUE; |
| 84 | } |
| 85 | |
| 86 | FX_BOOL CPDFXFA_Page::LoadPage() { |
| 87 | if (!m_pDocument || m_iPageIndex < 0) |
| 88 | return FALSE; |
| 89 | |
| 90 | int iDocType = m_pDocument->GetDocType(); |
| 91 | switch (iDocType) { |
| 92 | case DOCTYPE_PDF: |
| 93 | case DOCTYPE_STATIC_XFA: { |
| 94 | return LoadPDFPage(); |
| 95 | } |
| 96 | case DOCTYPE_DYNAMIC_XFA: { |
| 97 | return LoadXFAPageView(); |
| 98 | } |
| 99 | default: |
| 100 | return FALSE; |
| 101 | } |
| 102 | |
| 103 | return FALSE; |
| 104 | } |
| 105 | |
| 106 | FX_BOOL CPDFXFA_Page::LoadPDFPage(CPDF_Dictionary* pageDict) { |
| 107 | if (!m_pDocument || m_iPageIndex < 0 || !pageDict) |
| 108 | return FALSE; |
| 109 | |
| 110 | if (m_pPDFPage) |
| 111 | delete m_pPDFPage; |
| 112 | |
| 113 | m_pPDFPage = new CPDF_Page(); |
| 114 | m_pPDFPage->Load(m_pDocument->GetPDFDoc(), pageDict); |
| 115 | m_pPDFPage->ParseContent(nullptr); |
| 116 | |
| 117 | return TRUE; |
| 118 | } |
| 119 | |
| 120 | FX_FLOAT CPDFXFA_Page::GetPageWidth() { |
| 121 | ASSERT(m_pDocument != NULL); |
| 122 | |
| 123 | if (!m_pPDFPage && !m_pXFAPageView) |
| 124 | return 0.0f; |
| 125 | |
| 126 | int nDocType = m_pDocument->GetDocType(); |
| 127 | switch (nDocType) { |
| 128 | case DOCTYPE_DYNAMIC_XFA: { |
| 129 | if (m_pXFAPageView) { |
| 130 | CFX_RectF rect; |
| 131 | m_pXFAPageView->GetPageViewRect(rect); |
| 132 | return rect.width; |
| 133 | } |
| 134 | } break; |
| 135 | case DOCTYPE_STATIC_XFA: |
| 136 | case DOCTYPE_PDF: { |
| 137 | if (m_pPDFPage) |
| 138 | return m_pPDFPage->GetPageWidth(); |
| 139 | } break; |
| 140 | default: |
| 141 | return 0.0f; |
| 142 | } |
| 143 | |
| 144 | return 0.0f; |
| 145 | } |
| 146 | |
| 147 | FX_FLOAT CPDFXFA_Page::GetPageHeight() { |
| 148 | ASSERT(m_pDocument != NULL); |
| 149 | |
| 150 | if (!m_pPDFPage && !m_pXFAPageView) |
| 151 | return 0.0f; |
| 152 | |
| 153 | int nDocType = m_pDocument->GetDocType(); |
| 154 | switch (nDocType) { |
| 155 | case DOCTYPE_PDF: |
| 156 | case DOCTYPE_STATIC_XFA: { |
| 157 | if (m_pPDFPage) |
| 158 | return m_pPDFPage->GetPageHeight(); |
| 159 | } break; |
| 160 | case DOCTYPE_DYNAMIC_XFA: { |
| 161 | if (m_pXFAPageView) { |
| 162 | CFX_RectF rect; |
| 163 | m_pXFAPageView->GetPageViewRect(rect); |
| 164 | return rect.height; |
| 165 | } |
| 166 | } break; |
| 167 | default: |
| 168 | return 0.0f; |
| 169 | } |
| 170 | |
| 171 | return 0.0f; |
| 172 | } |
| 173 | |
| 174 | void CPDFXFA_Page::DeviceToPage(int start_x, |
| 175 | int start_y, |
| 176 | int size_x, |
| 177 | int size_y, |
| 178 | int rotate, |
| 179 | int device_x, |
| 180 | int device_y, |
| 181 | double* page_x, |
| 182 | double* page_y) { |
| 183 | ASSERT(m_pDocument != NULL); |
| 184 | |
| 185 | if (!m_pPDFPage && !m_pXFAPageView) |
| 186 | return; |
| 187 | |
| 188 | CFX_Matrix page2device; |
| 189 | CFX_Matrix device2page; |
| 190 | FX_FLOAT page_x_f, page_y_f; |
| 191 | |
| 192 | GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate); |
| 193 | |
| 194 | device2page.SetReverse(page2device); |
| 195 | device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f, |
| 196 | page_y_f); |
| 197 | |
| 198 | *page_x = (page_x_f); |
| 199 | *page_y = (page_y_f); |
| 200 | } |
| 201 | |
| 202 | void CPDFXFA_Page::PageToDevice(int start_x, |
| 203 | int start_y, |
| 204 | int size_x, |
| 205 | int size_y, |
| 206 | int rotate, |
| 207 | double page_x, |
| 208 | double page_y, |
| 209 | int* device_x, |
| 210 | int* device_y) { |
| 211 | if (!m_pPDFPage && !m_pXFAPageView) |
| 212 | return; |
| 213 | |
| 214 | CFX_Matrix page2device; |
| 215 | FX_FLOAT device_x_f, device_y_f; |
| 216 | |
| 217 | GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate); |
| 218 | |
| 219 | page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f, |
| 220 | device_y_f); |
| 221 | |
| 222 | *device_x = FXSYS_round(device_x_f); |
| 223 | *device_y = FXSYS_round(device_y_f); |
| 224 | } |
| 225 | |
| 226 | void CPDFXFA_Page::GetDisplayMatrix(CFX_Matrix& matrix, |
| 227 | int xPos, |
| 228 | int yPos, |
| 229 | int xSize, |
| 230 | int ySize, |
| 231 | int iRotate) const { |
| 232 | ASSERT(m_pDocument != NULL); |
| 233 | |
| 234 | if (!m_pPDFPage && !m_pXFAPageView) |
| 235 | return; |
| 236 | |
| 237 | int nDocType = m_pDocument->GetDocType(); |
| 238 | switch (nDocType) { |
| 239 | case DOCTYPE_DYNAMIC_XFA: { |
| 240 | if (m_pXFAPageView) { |
| 241 | CFX_Rect rect; |
| 242 | rect.Set(xPos, yPos, xSize, ySize); |
| 243 | m_pXFAPageView->GetDisplayMatrix(matrix, rect, iRotate); |
| 244 | } |
| 245 | } break; |
| 246 | case DOCTYPE_PDF: |
| 247 | case DOCTYPE_STATIC_XFA: { |
| 248 | if (m_pPDFPage) { |
| 249 | m_pPDFPage->GetDisplayMatrix(matrix, xPos, yPos, xSize, ySize, iRotate); |
| 250 | } |
| 251 | } break; |
| 252 | default: |
| 253 | return; |
| 254 | } |
| 255 | } |