+++ /dev/null
-//
-// "$Id: Fl_Text_Buffer.H,v 1.2 2002/12/01 15:38:37 neurosurg Exp $"
-//
-// Header file for Fl_Text_Buffer class.
-//
-// Copyright 2001-2002 by Bill Spitzak and others.
-// Original code Copyright Mark Edel. Permission to distribute under
-// the LGPL for the FLTK library granted by Mark Edel.
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-// USA.
-//
-// Please report all bugs and problems to "fltk-bugs@fltk.org".
-//
-
-#ifndef FL_TEXT_BUFFER_H
-#define FL_TEXT_BUFFER_H
-
-/* Maximum length in characters of a tab or control character expansion
- of a single buffer character */
-#define FL_TEXT_MAX_EXP_CHAR_LEN 20
-
-#include "Fl_Export.H"
-
-class FL_EXPORT Fl_Text_Selection {
- friend class Fl_Text_Buffer;
-
- public:
- void set(int start, int end);
- void set_rectangular(int start, int end, int rectStart, int rectEnd);
- void update(int pos, int nDeleted, int nInserted);
- char rectangular() { return mRectangular; }
- int start() { return mStart; }
- int end() { return mEnd; }
- int rect_start() { return mRectStart; }
- int rect_end() { return mRectEnd; }
- char selected() { return mSelected; }
- void selected(char b) { mSelected = b; }
- int includes(int pos, int lineStartPos, int dispIndex);
- int position(int* start, int* end);
- int position(int* start, int* end, int* isRect, int* rectStart, int* rectEnd);
-
-
- protected:
- char mSelected;
- char mRectangular;
- int mStart;
- int mEnd;
- int mRectStart;
- int mRectEnd;
-};
-
-typedef void (*Fl_Text_Modify_Cb)(int pos, int nInserted, int nDeleted,
- int nRestyled, const char* deletedText,
- void* cbArg);
-typedef void (*Fl_Text_Predelete_Cb)(int pos, int nDeleted, void* cbArg);
-
-class FL_EXPORT Fl_Text_Buffer {
- public:
- Fl_Text_Buffer(int requestedSize = 0);
- ~Fl_Text_Buffer();
-
- int length() { return mLength; }
- char* text();
- void text(const char* text);
- char* text_range(int start, int end);
- char character(int pos);
- char* text_in_rectangle(int start, int end, int rectStart, int rectEnd);
- void insert(int pos, const char* text);
- void append(const char* t) { insert(length(), t); }
- void remove(int start, int end);
- void replace(int start, int end, const char *text);
- void copy(Fl_Text_Buffer* fromBuf, int fromStart, int fromEnd, int toPos);
- int undo(int *cp=0);
- void canUndo(char flag=1);
- int insertfile(const char *file, int pos, int buflen = 128*1024);
- int appendfile(const char *file, int buflen = 128*1024)
- { return insertfile(file, length(), buflen); }
- int loadfile(const char *file, int buflen = 128*1024)
- { select(0, length()); remove_selection(); return appendfile(file, buflen); }
- int outputfile(const char *file, int start, int end, int buflen = 128*1024);
- int savefile(const char *file, int buflen = 128*1024)
- { return outputfile(file, 0, length(), buflen); }
-
- void insert_column(int column, int startPos, const char* text,
- int* charsInserted, int* charsDeleted);
-
- void replace_rectangular(int start, int end, int rectStart, int rectEnd,
- const char* text);
-
- void overlay_rectangular(int startPos, int rectStart, int rectEnd,
- const char* text, int* charsInserted,
- int* charsDeleted);
-
- void remove_rectangular(int start, int end, int rectStart, int rectEnd);
- void clear_rectangular(int start, int end, int rectStart, int rectEnd);
- int tab_distance() { return mTabDist; }
- void tab_distance(int tabDist);
- void select(int start, int end);
- int selected() { return mPrimary.selected(); }
- void unselect();
- void select_rectangular(int start, int end, int rectStart, int rectEnd);
- int selection_position(int* start, int* end);
-
- int selection_position(int* start, int* end, int* isRect, int* rectStart,
- int* rectEnd);
-
- char* selection_text();
- void remove_selection();
- void replace_selection(const char* text);
- void secondary_select(int start, int end);
- void secondary_unselect();
-
- void secondary_select_rectangular(int start, int end, int rectStart,
- int rectEnd);
-
- int secondary_selection_position(int* start, int* end, int* isRect,
- int* rectStart, int* rectEnd);
-
- char* secondary_selection_text();
- void remove_secondary_selection();
- void replace_secondary_selection(const char* text);
- void highlight(int start, int end);
- void unhighlight();
- void highlight_rectangular(int start, int end, int rectStart, int rectEnd);
-
- int highlight_position(int* start, int* end, int* isRect, int* rectStart,
- int* rectEnd);
-
- char* highlight_text();
- void add_modify_callback(Fl_Text_Modify_Cb bufModifiedCB, void* cbArg);
- void remove_modify_callback(Fl_Text_Modify_Cb bufModifiedCB, void* cbArg);
-
- void call_modify_callbacks() { call_modify_callbacks(0, 0, 0, 0, 0); }
-
- void add_predelete_callback(Fl_Text_Predelete_Cb bufPredelCB, void* cbArg);
- void remove_predelete_callback(Fl_Text_Predelete_Cb predelCB, void* cbArg);
-
- void call_predelete_callbacks() { call_predelete_callbacks(0, 0); }
-
- char* line_text(int pos);
- int line_start(int pos);
- int line_end(int pos);
- int word_start(int pos);
- int word_end(int pos);
- int expand_character(int pos, int indent, char *outStr);
-
- static int expand_character(char c, int indent, char* outStr, int tabDist,
- char nullSubsChar);
-
- static int character_width(char c, int indent, int tabDist, char nullSubsChar);
- int count_displayed_characters(int lineStartPos, int targetPos);
- int skip_displayed_characters(int lineStartPos, int nChars);
- int count_lines(int startPos, int endPos);
- int skip_lines(int startPos, int nLines);
- int rewind_lines(int startPos, int nLines);
- int findchar_forward(int startPos, char searchChar, int* foundPos);
- int findchar_backward(int startPos, char searchChar, int* foundPos);
- int findchars_forward(int startPos, const char* searchChars, int* foundPos);
- int findchars_backward(int startPos, const char* searchChars, int* foundPos);
-
- int search_forward(int startPos, const char* searchString, int* foundPos,
- int matchCase = 0);
-
- int search_backward(int startPos, const char* searchString, int* foundPos,
- int matchCase = 0);
-
- int substitute_null_characters(char* string, int length);
- void unsubstitute_null_characters(char* string);
- char null_substitution_character() { return mNullSubsChar; }
- Fl_Text_Selection* primary_selection() { return &mPrimary; }
- Fl_Text_Selection* secondary_selection() { return &mSecondary; }
- Fl_Text_Selection* highlight_selection() { return &mHighlight; }
-
- protected:
- void call_modify_callbacks(int pos, int nDeleted, int nInserted,
- int nRestyled, const char* deletedText);
- void call_predelete_callbacks(int pos, int nDeleted);
-
- int insert_(int pos, const char* text);
- void remove_(int start, int end);
-
- void remove_rectangular_(int start, int end, int rectStart, int rectEnd,
- int* replaceLen, int* endPos);
-
- void insert_column_(int column, int startPos, const char* insText,
- int* nDeleted, int* nInserted, int* endPos);
-
- void overlay_rectangular_(int startPos, int rectStart, int rectEnd,
- const char* insText, int* nDeleted,
- int* nInserted, int* endPos);
-
- void redisplay_selection(Fl_Text_Selection* oldSelection,
- Fl_Text_Selection* newSelection);
-
- void move_gap(int pos);
- void reallocate_with_gap(int newGapStart, int newGapLen);
- char* selection_text_(Fl_Text_Selection* sel);
- void remove_selection_(Fl_Text_Selection* sel);
- void replace_selection_(Fl_Text_Selection* sel, const char* text);
-
- void rectangular_selection_boundaries(int lineStartPos, int rectStart,
- int rectEnd, int* selStart,
- int* selEnd);
-
- void update_selections(int pos, int nDeleted, int nInserted);
-
- Fl_Text_Selection mPrimary; /* highlighted areas */
- Fl_Text_Selection mSecondary;
- Fl_Text_Selection mHighlight;
- int mLength; /* length of the text in the buffer (the length
- of the buffer itself must be calculated:
- gapEnd - gapStart + length) */
- char* mBuf; /* allocated memory where the text is stored */
- int mGapStart; /* points to the first character of the gap */
- int mGapEnd; /* points to the first char after the gap */
- // The hardware tab distance used by all displays for this buffer,
- // and used in computing offsets for rectangular selection operations.
- int mTabDist; /* equiv. number of characters in a tab */
- int mUseTabs; /* True if buffer routines are allowed to use
- tabs for padding in rectangular operations */
- int mNModifyProcs; /* number of modify-redisplay procs attached */
- Fl_Text_Modify_Cb* /* procedures to call when buffer is */
- mNodifyProcs; /* modified to redisplay contents */
- void** mCbArgs; /* caller arguments for modifyProcs above */
- int mNPredeleteProcs; /* number of pre-delete procs attached */
- Fl_Text_Predelete_Cb* /* procedure to call before text is deleted */
- mPredeleteProcs; /* from the buffer; at most one is supported. */
- void **mPredeleteCbArgs; /* caller argument for pre-delete proc above */
- int mCursorPosHint; /* hint for reasonable cursor position after
- a buffer modification operation */
- char mNullSubsChar; /* NEdit is based on C null-terminated strings,
- so ascii-nul characters must be substituted
- with something else. This is the else, but
- of course, things get quite messy when you
- use it */
- char mCanUndo; /* if this buffer is used for attributes, it must
- not do any undo calls */
-};
-
-#endif
-
-//
-// End of "$Id: Fl_Text_Buffer.H,v 1.2 2002/12/01 15:38:37 neurosurg Exp $".
-//
projects / opencv / blobdiff