diff options
Diffstat (limited to 'fpdfsdk/src/fpdfview.cpp')
| -rw-r--r-- | fpdfsdk/src/fpdfview.cpp | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp index 17f52ec263..b2c5618a52 100644 --- a/fpdfsdk/src/fpdfview.cpp +++ b/fpdfsdk/src/fpdfview.cpp @@ -20,6 +20,10 @@ CPDF_Document* CPDFDocumentFromFPDFDocument(FPDF_DOCUMENT doc) { return static_cast<CPDF_Document*>(doc); } +CPDF_Page* CPDFPageFromFPDFPage(FPDF_PAGE page) { + return static_cast<CPDF_Page*>(page); +} + CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess) { if (pFileAccess) m_FileAccess = *pFileAccess; @@ -284,15 +288,13 @@ DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, } DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page) { - if (!page) - return 0.0; - return ((CPDF_Page*)page)->GetPageWidth(); + CPDF_Page* pPage = CPDFPageFromFPDFPage(page); + return pPage ? pPage->GetPageWidth() : 0.0; } DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page) { - if (!page) - return 0.0; - return ((CPDF_Page*)page)->GetPageHeight(); + CPDF_Page* pPage = CPDFPageFromFPDFPage(page); + return pPage ? pPage->GetPageHeight() : 0.0; } void DropContext(void* data) { @@ -312,9 +314,9 @@ DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, int size_y, int rotate, int flags) { - if (page == NULL) + CPDF_Page* pPage = CPDFPageFromFPDFPage(page); + if (!pPage) return; - CPDF_Page* pPage = (CPDF_Page*)page; CRenderContext* pContext = new CRenderContext; pPage->SetPrivateData((void*)1, pContext, DropContext); @@ -472,10 +474,11 @@ DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, int size_y, int rotate, int flags) { - if (bitmap == NULL || page == NULL) + if (!bitmap) + return; + CPDF_Page* pPage = CPDFPageFromFPDFPage(page); + if (!pPage) return; - CPDF_Page* pPage = (CPDF_Page*)page; - CRenderContext* pContext = new CRenderContext; pPage->SetPrivateData((void*)1, pContext, DropContext); #ifdef _SKIA_SUPPORT_ @@ -570,10 +573,11 @@ DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, double page_y, int* device_x, int* device_y) { - if (page == NULL || device_x == NULL || device_y == NULL) + if (!device_x || !device_y) + return; + CPDF_Page* pPage = CPDFPageFromFPDFPage(page); + if (!pPage) return; - CPDF_Page* pPage = (CPDF_Page*)page; - CPDF_Matrix page2device; pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate); @@ -681,8 +685,8 @@ void FPDF_RenderPage_Retail(CRenderContext* pContext, int flags, FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter* pause) { - CPDF_Page* pPage = (CPDF_Page*)page; - if (pPage == NULL) + CPDF_Page* pPage = CPDFPageFromFPDFPage(page); + if (!pPage) return; if (!pContext->m_pOptions) |