#include "support/types.h"
+#include <boost/utility.hpp>
+#include <boost/tuple/tuple.hpp>
+
#include <map>
namespace lyx {
class BufferView;
-class LyXText;
+class DocIterator;
class MetricsInfo;
+class Text;
-/// A map from a LyXText to the map of paragraphs metrics
+/// A map from a Text to the map of paragraphs metrics
class TextMetrics
{
public:
/// Default constructor (only here for STL containers).
TextMetrics(): text_(0) {}
/// The only useful constructor.
- TextMetrics(BufferView *, LyXText *);
+ TextMetrics(BufferView *, Text *);
///
ParagraphMetrics const & parMetrics(pit_type) const;
///
/// \retval true if a full screen redraw is needed.
/// \retval false if a single paragraph redraw is enough.
bool redoParagraph(pit_type const pit);
+ /// Clear cache of paragraph metrics
+ void clear() { par_metrics_.clear(); }
///
int ascent() const { return dim_.asc; }
///
int maxWidth() const { return max_width_; }
+ ///
+ int singleWidth(pit_type const pit, pos_type pos) const;
///
int rightMargin(ParagraphMetrics const & pm) const;
/** this calculates the specified parameters. needed when setting
* the cursor and when creating a visible row */
- RowMetrics computeRowMetrics(pit_type pit, Row const & row) const;
+ void computeRowMetrics(pit_type pit, Row & row) const;
+ ///
+ void draw(PainterInfo & pi, int x, int y) const;
+ /// draw textselection
+ void drawSelection(PainterInfo & pi, int x, int y) const;
+
+ void drawParagraph(PainterInfo & pi, pit_type pit, int x, int y) const;
private:
- ///
+ ///
ParagraphMetrics & parMetrics(pit_type, bool redo_paragraph);
/// the minimum space a manual label needs on the screen in pixels
- int labelFill(Paragraph const & par, Row const & row) const;
+ int labelFill(pit_type const pit, Row const & row) const;
/// FIXME??
int labelEnd(pit_type const pit) const;
/// sets row.end to the pos value *after* which a row should break.
/// for example, the pos after which isNewLine(pos) == true
- void rowBreakPoint(int width, pit_type const pit, Row & row) const;
+ pit_type rowBreakPoint(
+ int width,
+ pit_type const pit,
+ pit_type first
+ ) const;
/// sets row.width to the minimum space a row needs on the screen in pixel
- void setRowWidth(int right_margin, pit_type const pit, Row & row) const;
+ int rowWidth(
+ int right_margin,
+ pit_type const pit,
+ pos_type const first,
+ pos_type const end
+ ) const;
/// Calculate and set the height of the row
- void setHeightOfRow(pit_type, Row & row);
+ boost::tuple<int, int> rowHeight(
+ pit_type const pit,
+ pos_type const first,
+ pos_type const end
+ ) const;
+
+ /// draw selection for a single row
+ void drawRowSelection(PainterInfo & pi, int x, Row const & row,
+ DocIterator const & beg, DocIterator const & end,
+ bool drawOnBegMargin, bool drawOnEndMargin) const;
+
+// Temporary public:
+public:
+ /// returns the column near the specified x-coordinate of the row.
+ /// x is an absolute screen coord, it is set to the real beginning
+ /// of this column.
+ pos_type getColumnNearX(pit_type pit, Row const & row, int & x,
+ bool & boundary) const;
+
+ /// returns pos in given par at given x coord.
+ pos_type x2pos(pit_type pit, int row, int x) const;
+
+ // FIXME: is there a need for this?
+ //int pos2x(pit_type pit, pos_type pos) const;
+
+ /** returns row near the specified
+ * y-coordinate in given paragraph (relative to the screen).
+ */
+ Row const & getRowNearY(int y,
+ pit_type pit) const;
+
+ /// returns the paragraph number closest to screen y-coordinate.
+ /// This method uses the BufferView CoordCache to locate the
+ /// paragraph. The y-coodinate is allowed to be off-screen and
+ /// the CoordCache will be automatically updated if needed. This is
+ /// the reason why we need a non const BufferView.
+ pit_type getPitNearY(int y);
+
+ /// sets cursor recursively descending into nested editable insets
+ /**
+ \return the inset pointer if x,y is covering that inset
+ \param x,y are absolute screen coordinates.
+ \retval inset is non-null if the cursor is positionned inside
+ */
+ /// FIXME: cleanup to use BufferView::getCoveringInset() and
+ /// setCursorFromCoordinates() instead of checkInsetHit().
+ Inset * editXY(Cursor & cur, int x, int y);
+
+ /// sets cursor only within this Text.
+ /// x,y are screen coordinates
+ void setCursorFromCoordinates(Cursor & cur, int x, int y);
+
+ ///
+ int cursorX(CursorSlice const & cursor,
+ bool boundary) const;
+ ///
+ int cursorY(CursorSlice const & cursor,
+ bool boundary) const;
+
+ ///
+ void cursorPrevious(Cursor & cur);
+ ///
+ void cursorNext(Cursor & cur);
+ ///
+ bool cursorHome(Cursor & cur);
+ ///
+ bool cursorEnd(Cursor & cur);
+ ///
+ void deleteLineForward(Cursor & cur);
+
+ /// is this row the last in the text?
+ bool isLastRow(pit_type pit, Row const & row) const;
+ /// is this row the first in the text?
+ bool isFirstRow(pit_type pit, Row const & row) const;
+
+ /// Returns an inset if inset was hit, or 0 if not.
+ /// \warning This method is not recursive! It will return the
+ /// outermost inset within this Text.
+ /// \sa BufferView::getCoveringInset() to get the innermost inset.
+ Inset * checkInsetHit(int x, int y);
+
+ /**
+ * Returns the left beginning of the text.
+ * This information cannot be taken from the layout object, because
+ * in LaTeX the beginning of the text fits in some cases
+ * (for example sections) exactly the label-width.
+ */
+ int leftMargin(int max_width, pit_type pit, pos_type pos) const;
+ int leftMargin(int max_width, pit_type pit) const;
+
+private:
/// The BufferView owner.
BufferView * bv_;
/// The text contents (the model).
/// \todo FIXME: this should be const.
- LyXText * text_;
+ Text * text_;
bool main_text_;
/// A map from paragraph index number to paragraph metrics
/*
/// A map from paragraph index number to screen point
typedef std::map<pit_type, Point> InnerParPosCache;
- /// A map from a LyXText to the map of paragraphs to screen points
- typedef std::map<LyXText const *, InnerParPosCache> ParPosCache;
+ /// A map from a Text to the map of paragraphs to screen points
+ typedef std::map<Text const *, InnerParPosCache> ParPosCache;
/// Paragraph grouped by owning text
ParPosCache pars_;
*/
projects / lyx.git / blobdiff