#define TEXT_METRICS_H
#include "Font.h"
+#include "InsetList.h"
+#include "LayoutEnums.h"
#include "ParagraphMetrics.h"
#include "support/types.h"
{
public:
/// Default constructor (only here for STL containers).
- TextMetrics() : text_(0) {}
+ TextMetrics() : bv_(0), text_(0), max_width_(0) {}
/// The only useful constructor.
TextMetrics(BufferView *, Text *);
-
+
///
bool contains(pit_type pit) const;
///
///
std::pair<pit_type, ParagraphMetrics const *> last() const;
- ///
- int parPosition(pit_type pit) const;
-
///
Dimension const & dimension() const { return dim_; }
///
///
void newParMetricsUp();
+ /// The "nodraw" drawing stage for one single paragraph: set the
+ /// positions of the insets contained this paragraph in metrics
+ /// cache. Related to BufferView::updatePosCache.
+ void updatePosCache(pit_type pit) const;
+
/// Gets the fully instantiated font at a given position in a paragraph
/// Basically the same routine as Paragraph::getFont() in Paragraph.cpp.
/// The difference is that this one is used for displaying, and thus we
bool redoParagraph(pit_type const pit);
/// Clear cache of paragraph metrics
void clear() { par_metrics_.clear(); }
+ /// Is cache of paragraph metrics empty ?
+ bool empty() const { return par_metrics_.empty(); }
///
int ascent() const { return dim_.asc; }
int descent() const { return dim_.des; }
/// current text width.
int width() const { return dim_.wid; }
- /// current text heigth.
+ /// current text height.
int height() const { return dim_.height(); }
- ///
- int maxWidth() const { return max_width_; }
- ///
- int singleWidth(pit_type const pit, pos_type pos) const;
-
///
int rightMargin(ParagraphMetrics const & pm) const;
int rightMargin(pit_type const pit) const;
- /** this calculates the specified parameters. needed when setting
- * the cursor and when creating a visible row */
- void computeRowMetrics(pit_type pit, Row & row, int width) const;
-
///
void draw(PainterInfo & pi, int x, int y) const;
-
- void drawParagraph(PainterInfo & pi, pit_type pit, int x, int y) const;
- /// Returns the height of the row (width member is set to 0).
- /// If \c topBottomSpace is true, extra space is added for the
- /// top and bottom row.
- Dimension rowHeight(
- pit_type const pit,
- pos_type const first,
- pos_type const end,
- bool topBottomSpace = true) const;
+ void drawParagraph(PainterInfo & pi, pit_type pit, int x, int y) const;
private:
///
ParagraphMetrics & parMetrics(pit_type, bool redo_paragraph);
+ /**
+ * 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(pit_type pit, pos_type pos) const;
+ int leftMargin(pit_type pit) const;
+
/// the minimum space a manual label needs on the screen in pixels
- int labelFill(pit_type const pit, Row const & row) const;
+ int labelFill(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
- pos_type rowBreakPoint(
- int width,
- pit_type const pit,
- pos_type first
- ) const;
-
- /// returns the minimum space a row needs on the screen in pixel
- int rowWidth(
- int right_margin,
- 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,
- Cursor const & cur, pit_type const pit) const;
+ /// \return true when another row is required (after a newline)
+ bool breakRow(Row & row, int right_margin) const;
+
+ // Expand the alignment of row \param row in paragraph \param par
+ LyXAlignment getAlign(Paragraph const & par, Row const & row) const;
+ /** this calculates the specified parameters. needed when setting
+ * the cursor and when creating a visible row */
+ void computeRowMetrics(Row & row, int width) const;
+
+ /// Set the height of the row (without space above/below paragraph)
+ void setRowHeight(Row & row) const;
+ // Compute the space on top of a paragraph
+ int parTopSpacing(pit_type pit) const;
+ // Compute the space below a a paragraph
+ int parBottomSpacing(pit_type pit) const;
+
+ // Helper function for the other checkInsetHit method.
+ InsetList::InsetTable * checkInsetHit(pit_type pit, int x, int y);
+
// Temporary public:
public:
- /// returns the column near the specified x-coordinate of the row.
+ /// returns the position 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;
+ /// of this column. This takes in account horizontal cursor row scrolling.
+ pos_type getPosNearX(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;
/// returns the row near the specified y-coordinate in a given paragraph
/// (relative to the screen). If assert_in_view is true, it is made sure
/// that the row is on screen completely; this might change the given pit.
- Row const & getPitAndRowNearY(int y, pit_type & pit,
+ Row const & getPitAndRowNearY(int & y, pit_type & pit,
bool assert_in_view, bool up);
/// returns the paragraph number closest to screen y-coordinate.
\param x,y are absolute screen coordinates.
\param assert_in_view if true the cursor will be set on a row
that is completely visible
- \param up whether we are going up or down (only used when
+ \param up whether we are going up or down (only used when
assert_in_view is true
- \retval inset is non-null if the cursor is positionned inside
+ \retval inset is null if the cursor is positioned over normal
+ text in the current Text object. Otherwise it is the inset
+ that the cursor points to, like for Inset::editXY.
*/
/// FIXME: cleanup to use BufferView::getCoveringInset() and
/// setCursorFromCoordinates() instead of checkInsetHit().
void setCursorFromCoordinates(Cursor & cur, int x, int y);
///
- int cursorX(CursorSlice const & cursor,
- bool boundary) const;
+ int cursorX(CursorSlice const & cursor, bool boundary) const;
///
- int cursorY(CursorSlice const & cursor,
- bool boundary) const;
+ int cursorY(CursorSlice const & cursor, bool boundary) const;
///
bool cursorHome(Cursor & cur);
void deleteLineForward(Cursor & cur);
/// is this row the last in the text?
- bool isLastRow(pit_type pit, Row const & row) const;
+ bool isLastRow(Row const & row) const;
/// is this row the first in the text?
- bool isFirstRow(pit_type pit, Row const & row) const;
+ bool isFirstRow(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
/// \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;
-
/// calculates the position of a completion popup
- void completionPosAndDim(Cursor const & cur, int & x, int & y,
+ void completionPosAndDim(Cursor const & cur, int & x, int & y,
Dimension & dim) const;
private:
/// \todo FIXME: this should be const.
Text * text_;
- bool main_text_;
/// A map from paragraph index number to paragraph metrics
typedef std::map<pit_type, ParagraphMetrics> ParMetricsCache;
///
/// our 'outermost' font.
/// This is handed down from the surrounding
/// inset through the pi/mi parameter (pi.base.font)
- /// It is used in applyOuterFont() and setCharFont() for reasons
+ /// It is used in applyOuterFont() and setCharFont() for reasons
/// that are not clear... to hand hand the outermost language and
/// also for char style apparently.
Font font_;
projects / lyx.git / blobdiff