+//------------------------------------------------------------------------
+// TextBlock
+//------------------------------------------------------------------------
+
+class TextBlock {
+public:
+
+ TextBlock(TextPage *pageA, int rotA);
+ ~TextBlock();
+
+ void addWord(TextWord *word);
+
+ void coalesce(UnicodeMap *uMap);
+
+ // Update this block's priMin and priMax values, looking at <blk>.
+ void updatePriMinMax(TextBlock *blk);
+
+ static int cmpXYPrimaryRot(const void *p1, const void *p2);
+
+ static int cmpYXPrimaryRot(const void *p1, const void *p2);
+
+ int primaryCmp(TextBlock *blk);
+
+ double secondaryDelta(TextBlock *blk);
+
+ // Returns true if <this> is below <blk>, relative to the page's
+ // primary rotation.
+ GBool isBelow(TextBlock *blk);
+
+private:
+
+ TextPage *page; // the parent page
+ int rot; // text rotation
+ double xMin, xMax; // bounding box x coordinates
+ double yMin, yMax; // bounding box y coordinates
+ double priMin, priMax; // whitespace bounding box along primary axis
+
+ TextPool *pool; // pool of words (used only until lines
+ // are built)
+ TextLine *lines; // linked list of lines
+ TextLine *curLine; // most recently added line
+ int nLines; // number of lines
+ int charCount; // number of characters in the block
+ int col; // starting column
+ int nColumns; // number of columns in the block
+
+ TextBlock *next;
+ TextBlock *stackNext;
+
+ friend class TextLine;
+ friend class TextLineFrag;
+ friend class TextFlow;
+ friend class TextWordList;
+ friend class TextPage;
+};
+
+//------------------------------------------------------------------------
+// TextFlow
+//------------------------------------------------------------------------
+
+class TextFlow {
+public:
+
+ TextFlow(TextPage *pageA, TextBlock *blk);
+ ~TextFlow();
+
+ // Add a block to the end of this flow.
+ void addBlock(TextBlock *blk);
+
+ // Returns true if <blk> fits below <prevBlk> in the flow, i.e., (1)
+ // it uses a font no larger than the last block added to the flow,
+ // and (2) it fits within the flow's [priMin, priMax] along the
+ // primary axis.
+ GBool blockFits(TextBlock *blk, TextBlock *prevBlk);
+
+private:
+
+ TextPage *page; // the parent page
+ double xMin, xMax; // bounding box x coordinates
+ double yMin, yMax; // bounding box y coordinates
+ double priMin, priMax; // whitespace bounding box along primary axis
+ TextBlock *blocks; // blocks in flow
+ TextBlock *lastBlk; // last block in this flow
+ TextFlow *next;
+
+ friend class TextWordList;
+ friend class TextPage;
+};
+
+#if TEXTOUT_WORD_LIST
+
+//------------------------------------------------------------------------
+// TextWordList
+//------------------------------------------------------------------------
+
+class TextWordList {
+public:
+
+ // Build a flat word list, in content stream order (if
+ // text->rawOrder is true), physical layout order (if <physLayout>
+ // is true and text->rawOrder is false), or reading order (if both
+ // flags are false).
+ TextWordList(TextPage *text, GBool physLayout);
+
+ ~TextWordList();
+
+ // Return the number of words on the list.
+ int getLength();
+
+ // Return the <idx>th word from the list.
+ TextWord *get(int idx);
+
+private:
+
+ GList *words;
+};
+
+#endif // TEXTOUT_WORD_LIST
+