X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2FBufferView.h;h=40dd0d29c352a4496ef0b3301b2910fda1c67226;hb=62af7ee772f16f154225d2d0b65d77f4376b6001;hp=0105275eae1713218550af1e1aace7e7c08ef470;hpb=7ad28349ab345b93330c800132891837498cc4b0;p=lyx.git diff --git a/src/BufferView.h b/src/BufferView.h index 0105275eae..40dd0d29c3 100644 --- a/src/BufferView.h +++ b/src/BufferView.h @@ -15,6 +15,8 @@ #ifndef BUFFER_VIEW_H #define BUFFER_VIEW_H +#include "DocumentClassPtr.h" +#include "TexRow.h" #include "update_flags.h" #include "support/strfwd.h" @@ -31,14 +33,22 @@ class Buffer; class Change; class CoordCache; class Cursor; +class CursorSlice; +class DispatchResult; class DocIterator; +class DocumentClass; class FuncRequest; class FuncStatus; class Intl; class Inset; +class Length; +class MathData; +class MathRow; class ParIterator; class ParagraphMetrics; class Point; +class Row; +class TexRow; class Text; class TextMetrics; @@ -51,15 +61,15 @@ enum CursorStatus { /// Scrollbar Parameters. struct ScrollbarParameters { + // These parameters are normalized against the screen geometry and pixel + // coordinates. Position 0 corresponds to the top the the screen. ScrollbarParameters() - : min(0), max(0), position(0), single_step(1), page_step(1) + : min(0), max(0), single_step(1), page_step(1) {} /// Minimum scrollbar position in pixels. int min; /// Maximum scrollbar position in pixels. int max; - /// Current position in the document in pixels. - int position; /// Line-scroll amount in pixels. int single_step; /// Page-scroll amount in pixels. @@ -98,23 +108,46 @@ public: /// left margin int leftMargin() const; + /// return the on-screen size of this length + /* + * This is a wrapper around Length::inPixels that uses the + * bufferview width as width and the EM value of the default + * document font. + */ + int inPixels(Length const & len) const; + + /** Return the number of pixels equivalent to \c pix pixels at + * 100dpi and 100% zoom. + */ + int zoomedPixels(int pix) const; + /// \return true if the BufferView is at the top of the document. bool isTopScreen() const; /// \return true if the BufferView is at the bottom of the document. bool isBottomScreen() const; - /// perform pending metrics updates. - /** \c Update::FitCursor means first to do a FitCursor, and to + /// Add \p flags to current update flags and trigger an update. + /* If this method is invoked several times before the update + * actually takes place, the effect is cumulative. + * \c Update::FitCursor means first to do a FitCursor, and to * force an update if screen position changes. * \c Update::Force means to force an update in any case. - * \retval true if a screen redraw is needed */ void processUpdateFlags(Update::flags flags); - /// move the screen to fit the cursor. + /// return true if one shall move the screen to fit the cursor. /// Only to be called with good y coordinates (after a bv::metrics) - bool fitCursor(); + bool needsFitCursor() const; + + // Returns the amount of horizontal scrolling applied to the + // top-level row where the cursor lies + int horizScrollOffset() const; + // Returns the amount of horizontal scrolling applied to the + // row of text starting at (pit, pos) + int horizScrollOffset(Text const * text, + pit_type pit, pos_type pos) const; + /// reset the scrollbar to reflect current view position. void updateScrollbar(); /// return the Scrollbar Parameters. @@ -122,7 +155,7 @@ public: /// \return Tool tip for the given position. docstring toolTip(int x, int y) const; /// \return the context menu for the given position. - docstring contextMenu(int x, int y) const; + std::string contextMenu(int x, int y) const; /// Save the current position as bookmark. /// if idx == 0, save to temp_bookmark @@ -142,7 +175,9 @@ public: void gotoLabel(docstring const & label); /// set the cursor based on the given TeX source row. - void setCursorFromRow(int row); + bool setCursorFromRow(int row); + /// set the cursor based on the given start and end TextEntries. + bool setCursorFromEntries(TexRow::TextEntry start, TexRow::TextEntry end); /// set cursor to the given inset. Return true if found. bool setCursorFromInset(Inset const *); @@ -151,20 +186,19 @@ public: void recenter(); /// Ensure that the BufferView cursor is visible. /// This method will automatically scroll and update the BufferView - /// if needed. - void showCursor(); + /// (metrics+drawing) if needed. + void showCursor(); /// Ensure the passed cursor \p dit is visible. /// This method will automatically scroll and update the BufferView - /// if needed. + /// (metrics+drawing) if needed. /// \param recenter Whether the cursor should be centered on screen - void showCursor(DocIterator const & dit, bool recenter = false); + void showCursor(DocIterator const & dit, bool recenter, + bool update); /// Scroll to the cursor. void scrollToCursor(); /// Scroll to the cursor. /// \param recenter Whether the cursor should be centered on screen bool scrollToCursor(DocIterator const & dit, bool recenter); - /// LFUN_SCROLL Helper. - void lfunScroll(FuncRequest const & cmd); /// scroll down document by the given number of pixels. int scrollDown(int pixels); /// scroll up document by the given number of pixels. @@ -172,7 +206,7 @@ public: /// scroll document by the given number of pixels. int scroll(int pixels); /// Scroll the view by a number of pixels. - void scrollDocView(int pixels); + void scrollDocView(int pixels, bool update); /// Set the cursor position based on the scrollbar one. void setCursorFromScrollbar(); @@ -187,19 +221,20 @@ public: size_t const & inlineCompletionUniqueChars() const; /// return the position in the buffer of the inline completion postfix. DocIterator const & inlineCompletionPos() const; + /// make sure inline completion position is OK + void resetInlineCompletionPos(); /// set the inline completion postfix and its position in the buffer. /// Updates the updateFlags in \c cur. - void setInlineCompletion(Cursor & cur, DocIterator const & pos, + void setInlineCompletion(Cursor const & cur, DocIterator const & pos, docstring const & completion, size_t uniqueChars = 0); /// translate and insert a character, using the correct keymap. void translateAndInsert(char_type c, Text * t, Cursor & cur); - /// return true for events that will handle. - FuncStatus getStatus(FuncRequest const & cmd); + /// \return true if we've made a decision + bool getStatus(FuncRequest const & cmd, FuncStatus & flag); /// execute the given function. - /// \return true if the function has been processed. - bool dispatch(FuncRequest const & argument); + void dispatch(FuncRequest const & cmd, DispatchResult & dr); /// request an X11 selection. /// \return the selected string. @@ -215,9 +250,6 @@ public: /// \sa WorkArea void mouseEventDispatch(FuncRequest const & ev); - /// access to anchor. - pit_type anchor_ref() const; - /// CursorStatus cursorStatus(DocIterator const & dit) const; /// access to full cursor. @@ -225,8 +257,10 @@ public: /// access to full cursor. Cursor const & cursor() const; /// sets cursor. - /// This will also open all relevant collapsable insets. + /// This will also open all relevant collapsible insets. void setCursor(DocIterator const &); + /// set the selection up to dit. + void setCursorSelectionTo(DocIterator const & dit); /// Check deleteEmptyParagraphMechanism and update metrics if needed. /// \retval true if an update was needed. bool checkDepm(Cursor & cur, Cursor & old); @@ -243,9 +277,16 @@ public: void putSelectionAt(DocIterator const & cur, int length, bool backwards); + /// selects the item at cursor if its paragraph is empty. + bool selectIfEmpty(DocIterator & cur); + /// update the internal \c ViewMetricsInfo. void updateMetrics(); + // this is the "nodraw" drawing stage: only set the positions of the + // insets in metrics cache. + void updatePosCache(); + /// TextMetrics const & textMetrics(Text const * t) const; TextMetrics & textMetrics(Text const * t); @@ -258,13 +299,21 @@ public: CoordCache const & coordCache() const; /// - Point getPos(DocIterator const & dit, bool boundary) const; + MathRow const & mathRow(MathData const * cell) const; + /// + void setMathRow(MathData const * cell, MathRow const & mrow); + + /// + Point getPos(DocIterator const & dit) const; /// is the paragraph of the cursor visible ? bool paragraphVisible(DocIterator const & dit) const; - + /// is the caret currently visible in the view + bool caretInView() const; + /// get the position and height of the caret + void caretPosAndHeight(Point & p, int & h) const; /// - void draw(frontend::Painter & pain); + void draw(frontend::Painter & pain, bool paint_caret); /// get this view's keyboard map handler. Intl & getIntl(); @@ -296,26 +345,45 @@ public: // Insert plain text file (if filename is empty, prompt for one) void insertPlaintextFile(support::FileName const & f, bool asParagraph); /// - void insertLyXFile(support::FileName const & f); + void insertLyXFile(support::FileName const & f, bool const ignorelang = false); /// save temporary bookmark for jump back navigation void bookmarkEditPosition(); + /// Find and return the inset associated with given dialog name. + Inset * editedInset(std::string const & name) const; + /// Associate an inset associated with given dialog name. + void editInset(std::string const & name, Inset * inset); + /// + void clearLastInset(Inset * inset) const; + /// Is the mouse hovering a clickable inset or element? + bool clickableInset() const; + /// + void makeDocumentClass(); private: /// noncopyable BufferView(BufferView const &); void operator=(BufferView const &); - // the position relative to (0, baseline) of outermost paragraph - Point coordOffset(DocIterator const & dit, bool boundary) const; + /// the position relative to (0, baseline) of outermost paragraph + Point coordOffset(DocIterator const & dit) const; /// Update current paragraph metrics. /// \return true if no further update is needed. bool singleParUpdate(); + /// do the work for the public updateMetrics() + void updateMetrics(Update::flags & update_flags); + + // Set the row on which the cursor lives. + void setCurrentRowSlice(CursorSlice const & rowSlice); + + // Check whether the row where the cursor lives needs to be scrolled. + // Update the drawing strategy if needed. + void checkCursorScrollOffset(); /// The minimal size of the document that is visible. Used /// when it is allowed to scroll below the document. int minVisiblePart(); - /// Search recursively for the the innermost inset that covers (x, y) position. + /// Search recursively for the innermost inset that covers (x, y) position. /// \retval 0 if no inset is found. Inset const * getCoveringInset( Text const & text, //< The Text where we start searching. @@ -323,6 +391,12 @@ private: int y //< y-coordinate on screen ) const; + /// Update the hovering status of the insets. This is called when + /// either the screen is updated or when the buffer has scolled. + void updateHoveredInset() const; + + /// + void updateDocumentClass(DocumentClassConstPtr olddc); /// int width_; ///