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2016-09-09Define behaviors of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw.chromium/2858chromium/2857chromium/2856jaepark
Previously, PDFium only supported widget annotations to draw forms. As we've implemented other annotations, the behavior of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw changed. So, this CL clearly defines what needs to be done in FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw. This CL first assumes that PDFium users will always call FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw to render PDF pages, because otherwise they are not able to support PDF forms. FPDF_RenderPageBitmap_Retail should only deal with non-widget annotations, such as highlight, underline, text, etc. If FPDF_ANNOT flag is passed, non-widget annotations are drawn. Otherwise, they are hidden. FPDF_FFLDraw should only deal with annotations that requires user-interaction, such as widget annotations and popup annotation. Since popup annotation is associated with non-widget annotation, they should not be drawn if the associated annotation is hidden. Thus, if FPDF_ANNOT flag is passed, popup annotations are drawn. Otherwise, they are hidden. Widget annotations should be always drawn regardless of FPDF_ANNOT flag since they need to be always displayed for PDF forms. Also, roll DEPS for testing/corpus to 8485b30. BUG=pdfium:594 Review-Url: https://codereview.chromium.org/2323203002
2016-09-08Delete unused methods in CPDF_Documentnpm
Review-Url: https://codereview.chromium.org/2323933002
2016-09-08Switch to ValueOrDiedsinclair
We know the values are always valid at this point, so use ValueOrDie instead of ValueOrDefault. BUG=chromium:637984 Review-Url: https://codereview.chromium.org/2319343003
2016-09-07Verify image dimentions before usingdsinclair
Verify the provided image size is within bounds before loading. BUG=chromium:639160 Review-Url: https://codereview.chromium.org/2323473002
2016-09-07Verify pattern start values.dsinclair
When calculating the starting x and y for a pattern it is possible to overflow the int value. Use checked math to make sure we don't overflow. BUG=chromium:637984 Review-Url: https://codereview.chromium.org/2317283002
2016-09-07Maybe avoid a copy in CPDF_RenderStatus::SelectClipPathtsepez
Use the shared copy-on-write version instead of the underlying CFX_GraphStateData since it may not always get modified. Review-Url: https://codereview.chromium.org/2316823002
2016-09-06Make CPDF_TextStateData private to CPDF_TextState.chromium/2853tsepez
Review-Url: https://codereview.chromium.org/2313083002
2016-09-06Move CPDF_GraphState to CFX_GraphStatetsepez
The FX layer is spying on its private data, so make the job of ref-counting it live in FX as well, instead of up a layer at pdfapi. Pre-cursor to making this private and passing the graph state itself everywhere. Review-Url: https://codereview.chromium.org/2314223002
2016-09-06Make CPDF_ContentMarkData private to CPDF_ContentMarktsepez
Review-Url: https://codereview.chromium.org/2312743005
2016-09-06Make ColorStateData private to CPDF_ColorStatetsepez
Review-Url: https://codereview.chromium.org/2311313002
2016-09-03Use safe bool conversion operators in fpdf_page/chromium/2852chromium/2851chromium/2850tsepez
Review-Url: https://codereview.chromium.org/2310693002
2016-09-02Make CPDF_ClipPath have a CPDF_ClipPathData rather than inheriting.tsepez
Make Data private to the ClipPath class which manages it transparently for its callers. This prevents the callers from having to remember to make a copy before dirtying the shared data, since the operations that modify state will do this under the covers for us. Review-Url: https://codereview.chromium.org/2301263003
2016-09-02Remove CFX_Matrix::Copy() in favor of assignmenttsepez
The default assignment operator will suffice and allows us to write matrix1 = matrix2; Review-Url: https://codereview.chromium.org/2307953003
2016-09-02Make CPDF_GeneralStateData private.tsepez
All interaction goes through the CPDF_GeneralState, which manages the underlying storage transparently to the callers. Make StateData use a real string and a real matrix rather than C-style arrays. Review-Url: https://codereview.chromium.org/2302683002
2016-09-02Make CPDF_Path have a CFX_Path rather than inheritingtsepez
Review-Url: https://codereview.chromium.org/2305103002
2016-09-02Make CPDF_GeneralState have a CPDF_GeneralStateDatachromium/2848tsepez
Remove a const cast along the way and propagate to callers. Review-Url: https://codereview.chromium.org/2303553002
2016-09-01Use unsigned page indexes in CPDF_HintTables.thestig
Fix up callers from CPDF_DataAvail. Review-Url: https://codereview.chromium.org/2294383003
2016-09-01Move CPDF_Type3Cache and CPDF_Type3Glyphs to their own filesnpm
Review-Url: https://codereview.chromium.org/2298163004
2016-09-01Fix CPDF_CIDFont::GlyphFromCharCode for fonts flagged with PDFFONT_SYMBOLICnpm
UnicodeFromCharCode should be tried even if the font is flagged as PDFFONT_SYMBOLIC. The result should be checked in case it's empty. This fixes some corpus tests that were being incorrectly rendered, as well as the bug below. A deps change will be required before landing this CL. BUG=chromium:591303 Review-Url: https://codereview.chromium.org/2300893003
2016-09-01Handle another integer overflow in ReadPageHintTable().thestig
Return false instead of crashing. BUG=641882 Review-Url: https://codereview.chromium.org/2300903002
2016-09-01Better validate hint table header bits entries.thestig
BUG=637119 Review-Url: https://codereview.chromium.org/2305443003
2016-09-01Make CPDF_ContentMark have a CPDF_ContentMarkData.tsepez
This one doesn't require an explict Emplace(), as the object seems to get constructed only as a side-effect of making a private copy. Review-Url: https://codereview.chromium.org/2298953002
2016-08-31Check first page number in CPDF_HintTables::ReadPageHintTable().thestig
BUG=642655 Review-Url: https://codereview.chromium.org/2298753003
2016-08-31Make CPDF_ColorState have a CFX_ColorStateData rather than inheritingtsepez
Review-Url: https://codereview.chromium.org/2294133002
2016-08-31Make CPDF_GraphState have a CPDF_GraphStateData instead of inheriting.tsepez
Get callers out of the copy-before-write business, and let the class manage it instead. Review-Url: https://codereview.chromium.org/2292363002
2016-08-30Clean up CPDF_CMap declarationchromium/2845npm
- Removed unused methods - Friendship with CPDF_PathManager is not needed - Protected may be changed to private Review-Url: https://codereview.chromium.org/2292023003
2016-08-30Make CPDF_TextState have a CPDF_TextStateData rather than inheriting one.tsepez
Review-Url: https://codereview.chromium.org/2287313004
2016-08-30Guard against overflow when calculating font weight.dsinclair
This CL uses the safe math libraries when calculating the font weight from the StemV value as very large values for StemV can cause the signed int to overflow. BUG=chromium:641418 Review-Url: https://codereview.chromium.org/2293633002
2016-08-30More better const-ness in CFX_CountRef<>tsepez
There are a couple of places where code is calling GetObject() that should be calling GetPrivateCopy(), but works because the value may not be shared at the time. This just makes it safer. Review-Url: https://codereview.chromium.org/2290863002
2016-08-29Revert "Add -> operators to CFX_CountRef."tsepez
This reverts commit c10c23a2b1999b1cb0354fd4db9837dc63a3d833. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2285283003
2016-08-29Revert "Replace wrapper methods in CPDF_Path with -> operator."tsepez
This reverts commit d09a09751f724ecdb1a0bc307447a3d0c212ebff. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2291833002
2016-08-29Revert "Use ->() in CPDF_ColorState"tsepez
This reverts commit 91ddd3f7501429222f648b986a99f3959a398889. Reason for revert: may introduce sublte bugs, more thought required. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2294553002
2016-08-29Verify element exists before accessing.dsinclair
Currently when the parser utility classes are outputting to a text buffer we do not verify that an element from an array exists before accessing. We can have null items in arrays (and dictionaries but the dictionary case is already handled). This Cl updates the code to check the element exists before attempting to use the element. BUG=chromium:641076 Review-Url: https://codereview.chromium.org/2292473004
2016-08-29Use ->() in CPDF_ColorStatetsepez
Move methods to CPDF_ColorStateData. Move MakePrivateCopy() methods to call sites. Remove now-empty cpdf_colorstate.cpp file. Review-Url: https://codereview.chromium.org/2291763002
2016-08-29Initialize the CPDF_Document pointerdsinclair
This CL is a speculative fix for the associated BUG. Make sure the CPDF_Document is initialized in the constructor. BUG=chromium:640998 Review-Url: https://codereview.chromium.org/2291743002
2016-08-29Replace wrapper methods in CPDF_Path with -> operator.tsepez
These just invoked exaclty the same methodes in the underlying xxxData class, which we can now do with just a ->() Move some methods to the xxxData class, where they belong. In doing so, put MakePrivateCopy() calls at each callsite for those methods that made a copy. Review-Url: https://codereview.chromium.org/2286983002
2016-08-29Add some limit checks to ReadSharedObjHintTable().thestig
BUG=641444 Review-Url: https://codereview.chromium.org/2283893003
2016-08-26Add -> operators to CFX_CountRef.chromium/2842tsepez
Allows CFX_CountRefs to behave more like pointers. Rename SetNull() to Clear() for consistency with other ptrs. Change GetPrivateCopy() into MakePrivateCopy() with no return, since the -> operators are clearer than getting an object pointer. Review-Url: https://codereview.chromium.org/2283113002
2016-08-26Make CFX_CountRef<>::m_pObject private, add accessors, fix const-ness.tsepez
Hide the CountedObj class from the rest of the code. Rename GetModify() to GetPrivateCopy(), since it turns out there are places where we modify a potentially-shared copy. Add non-const version of GetObject() to permit these. Review-Url: https://codereview.chromium.org/2287633002
2016-08-26Remove CFX_CountRef::IsNull in favor of operator booltsepez
Review-Url: https://codereview.chromium.org/2285513002
2016-08-26Rework CFX_CountRef in terms of CFX_RetainPtr.tsepez
Make use of existing ref count work rather than re-inventing it. Review-Url: https://codereview.chromium.org/2281683002
2016-08-25Check for nullptrs in CPDF_Dictionary dtor.thestig
BUG=597440 Review-Url: https://codereview.chromium.org/2273293003
2016-08-25Tidy up CFX_PathDatatsepez
Remove friendship with CFX_Path Pack members tighter on 64-bits. Review-Url: https://codereview.chromium.org/2275883004
2016-08-24Removing CPDF_Parser::CloseParser.chromium/2839dsinclair
Currently the only calls to CloseParser() happend in the destructor or the start*Parse methods. The Start*Parse methods are currently only called on freshly constructed parsers in fpdf_dataavail and fpdfview. This CL removes the CloseParser() method and puts the contents in the destructor. We then add an ASSERT that we don't re-enter the parser after it has already completed the parse. Review-Url: https://codereview.chromium.org/2267173005
2016-08-24Allow CPDF_Font to use fallback fontsnpm
Added a vector of pointers to CFX_Fonts in the class CPDF_Font, so that fallback fonts may be used. In CPDF_CharPosList::Load, the glyphs for each character are calculated. When m_Font does not support a character, a fallback font is selected and the character is rendered using that font. This meant adding an attribute to FXTEXT_CHARPOS so it knows which font renders it. Also, methods in fpdf_render_text.cpp now may need to call device drawing methods multiple times because these only support one font at a time. In CPDF_TextRenderer::DrawNormalText and in CPDF_TextRenderer::DrawTextPath, the device drawing method is called as few times as possible by grouping contiguous characters rendered by the same font. In CPDF_RenderStatus::DrawTextPathWithPattern, drawing was already done one character at a time, but precalculating CFX_FaceCache. Now, the face cache is precalculated for all of the fallback fonts. The list of fallback fonts does not include tha main font. Otherwise the list would be of raw pointers to avoid double free problems. For now, the font Arial is used as fallback. This should fix the issue of not seeing Latin characters displayed when bad fonts are used. However, this should be improved. Tested manually using the file in the bug, plus a font directory containing a font that supports Hangul but not Latin. This font is chosen as the substitute font, but Latin characters are now being rendered. Design proposal: go/pdfium_fallbackfonts BUG=pdfium:358 Review-Url: https://codereview.chromium.org/2276653002
2016-08-24Flip document and parser ownershipdsinclair
This Cl switches the ownership between the parser and the document. Previously the parser owned the document and we'd jump through hoops during cleanup to delete the right object. This Cl flips the ownership so the document owns the parser and simplifies the cleanup logic where needed. BUG=pdfium:565 Review-Url: https://codereview.chromium.org/2275773003
2016-08-24Move parser out of IndirectObjectHolderdsinclair
This Cl moves the parser out of the indirect object holder and into the CPDF_Document where it is used. Review-Url: https://codereview.chromium.org/2277433003
2016-08-24Delete unused methods from CFX_RenderDevicenpm
Review-Url: https://codereview.chromium.org/2269203002
2016-08-23Fix stack overflow in object Clone() functionsweili
For some complex objects such as CPDF_Dictionary, CPDF_Array, CPDF_Stream, and CPDF_Reference, Clone() could be executed with infinite recursion to cause the stack overflow. Fix this by checking already cloned objects to avoid recursion. BUG=pdfium:513 Review-Url: https://codereview.chromium.org/2250533002
2016-08-23Make indirect object holder private.dsinclair
This CL moves the m_IndirectObjs map to be private to the IndirectObjectHolder. Various bits of code have been updated to use the accessors to the map. This CL fixes the issue with the last time this landed by removing the objnum check from GetIndirectObject() which appears to have caused the crashes. Review-Url: https://codereview.chromium.org/2275703002
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