+++ /dev/null
-//
-// "$Id: Fl_Text_Display.H,v 1.2 2002/12/01 15:38:37 neurosurg Exp $"
-//
-// Header file for Fl_Text_Display 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_DISPLAY_H
-#define FL_TEXT_DISPLAY_H
-
-#include "fl_draw.H"
-#include "Fl_Group.H"
-#include "Fl_Widget.H"
-#include "Fl_Scrollbar.H"
-#include "Fl_Text_Buffer.H"
-
-class FL_EXPORT Fl_Text_Display: public Fl_Group {
- public:
- enum {
- NORMAL_CURSOR, CARET_CURSOR, DIM_CURSOR,
- BLOCK_CURSOR, HEAVY_CURSOR
- };
-
- enum {
- CURSOR_POS, CHARACTER_POS
- };
-
- // drag types- they match Fl::event_clicks() so that single clicking to
- // start a collection selects by character, double clicking selects by
- // word and triple clicking selects by line.
- enum {
- DRAG_CHAR = 0, DRAG_WORD = 1, DRAG_LINE = 2
- };
- friend void fl_text_drag_me(int pos, Fl_Text_Display* d);
-
- typedef void (*Unfinished_Style_Cb)(int, void *);
-
- // style attributes - currently not implemented!
- enum {
- ATTR_NONE = 0,
- ATTR_UNDERLINE = 1,
- ATTR_HIDDEN = 2
- };
-
- struct Style_Table_Entry {
- Fl_Color color;
- Fl_Font font;
- int size;
- unsigned attr;
- };
-
- Fl_Text_Display(int X, int Y, int W, int H, const char *l = 0);
- ~Fl_Text_Display();
-
- virtual int handle(int e);
- void buffer(Fl_Text_Buffer* buf);
- void buffer(Fl_Text_Buffer& buf) { buffer(&buf); }
- Fl_Text_Buffer* buffer() { return mBuffer; }
- void redisplay_range(int start, int end);
- void scroll(int topLineNum, int horizOffset);
- void insert(const char* text);
- void overstrike(const char* text);
- void insert_position(int newPos);
- int insert_position() { return mCursorPos; }
- int in_selection(int x, int y);
- void show_insert_position();
- int move_right();
- int move_left();
- int move_up();
- int move_down();
- int count_lines(int start, int end, bool start_pos_is_line_start);
- int line_start(int pos);
- int line_end(int pos, bool start_pos_is_line_start);
- int skip_lines(int startPos, int nLines, bool startPosIsLineStart);
- int rewind_lines(int startPos, int nLines);
- void next_word(void);
- void previous_word(void);
- void show_cursor(int b = 1);
- void hide_cursor() { show_cursor(0); }
- void cursor_style(int style);
- int scrollbar_width() { return scrollbar_width_; }
- Fl_Align scrollbar_align() { return scrollbar_align_; }
- void scrollbar_width(int W) { scrollbar_width_ = W; }
- void scrollbar_align(Fl_Align a) { scrollbar_align_ = a; }
- int word_start(int pos) { return buffer()->word_start(pos); }
- int word_end(int pos) { return buffer()->word_end(pos); }
-
-
- void highlight_data(Fl_Text_Buffer *styleBuffer,
- const Style_Table_Entry *styleTable,
- int nStyles, char unfinishedStyle,
- Unfinished_Style_Cb unfinishedHighlightCB,
- void *cbArg);
-
- int position_style(int lineStartPos, int lineLen, int lineIndex,
- int dispIndex);
-
- Fl_Font textfont() const {return (Fl_Font)textfont_;}
- void textfont(uchar s) {textfont_ = s;}
- uchar textsize() const {return textsize_;}
- void textsize(uchar s) {textsize_ = s;}
- Fl_Color textcolor() const {return (Fl_Color)textcolor_;}
- void textcolor(unsigned n) {textcolor_ = n;}
-
- int wrapped_column(int row, int column);
- int wrapped_row(int row);
- void wrap_mode(int wrap, int wrap_margin);
-
- virtual void resize(int X, int Y, int W, int H);
-
- protected:
- // Most (all?) of this stuff should only be called from resize() or
- // draw().
- // Anything with "vline" indicates thats it deals with currently
- // visible lines.
-
- virtual void draw();
- void draw_text(int X, int Y, int W, int H);
- void draw_range(int start, int end);
- void draw_cursor(int, int);
-
- void draw_string(int style, int x, int y, int toX, const char *string,
- int nChars);
-
- void draw_vline(int visLineNum, int leftClip, int rightClip,
- int leftCharIndex, int rightCharIndex);
-
- void draw_line_numbers(bool clearAll);
-
- void clear_rect(int style, int x, int y, int width, int height);
- void display_insert();
-
- void offset_line_starts(int newTopLineNum);
-
- void calc_line_starts(int startLine, int endLine);
-
- void update_line_starts(int pos, int charsInserted, int charsDeleted,
- int linesInserted, int linesDeleted, int *scrolled);
-
- void calc_last_char();
-
- int position_to_line( int pos, int* lineNum );
- int string_width(const char* string, int length, int style);
-
- static void buffer_predelete_cb(int pos, int nDeleted, void* cbArg);
- static void buffer_modified_cb(int pos, int nInserted, int nDeleted,
- int nRestyled, const char* deletedText,
- void* cbArg);
-
- static void h_scrollbar_cb(Fl_Scrollbar* w, Fl_Text_Display* d);
- static void v_scrollbar_cb( Fl_Scrollbar* w, Fl_Text_Display* d);
- void update_v_scrollbar();
- void update_h_scrollbar();
- int measure_vline(int visLineNum);
- int longest_vline();
- int empty_vlines();
- int vline_length(int visLineNum);
- int xy_to_position(int x, int y, int PosType = CHARACTER_POS);
-
- void xy_to_rowcol(int x, int y, int* row, int* column,
- int PosType = CHARACTER_POS);
-
- int position_to_xy(int pos, int* x, int* y);
- void maintain_absolute_top_line_number(int state);
- int get_absolute_top_line_number();
- void absolute_top_line_number(int oldFirstChar);
- int maintaining_absolute_top_line_number();
- void reset_absolute_top_line_number();
- int position_to_linecol(int pos, int* lineNum, int* column);
- void scroll_(int topLineNum, int horizOffset);
-
- void extend_range_for_styles(int* start, int* end);
-
- void find_wrap_range(const char *deletedText, int pos, int nInserted,
- int nDeleted, int *modRangeStart, int *modRangeEnd,
- int *linesInserted, int *linesDeleted);
- void measure_deleted_lines(int pos, int nDeleted);
- void wrapped_line_counter(Fl_Text_Buffer *buf, int startPos, int maxPos,
- int maxLines, bool startPosIsLineStart,
- int styleBufOffset, int *retPos, int *retLines,
- int *retLineStart, int *retLineEnd,
- bool countLastLineMissingNewLine = true);
- void find_line_end(int pos, bool start_pos_is_line_start, int *lineEnd,
- int *nextLineStart);
- int measure_proportional_character(char c, int colNum, int pos);
- int wrap_uses_character(int lineEndPos);
- int range_touches_selection(Fl_Text_Selection *sel, int rangeStart,
- int rangeEnd);
-
- int damage_range1_start, damage_range1_end;
- int damage_range2_start, damage_range2_end;
- int mCursorPos;
- int mCursorOn;
- int mCursorOldY; /* Y pos. of cursor for blanking */
- int mCursorToHint; /* Tells the buffer modified callback
- where to move the cursor, to reduce
- the number of redraw calls */
- int mCursorStyle; /* One of enum cursorStyles above */
- int mCursorPreferredCol; /* Column for vert. cursor movement */
- int mNVisibleLines; /* # of visible (displayed) lines */
- int mNBufferLines; /* # of newlines in the buffer */
- Fl_Text_Buffer* mBuffer; /* Contains text to be displayed */
- Fl_Text_Buffer* mStyleBuffer; /* Optional parallel buffer containing
- color and font information */
- int mFirstChar, mLastChar; /* Buffer positions of first and last
- displayed character (lastChar points
- either to a newline or one character
- beyond the end of the buffer) */
- int mContinuousWrap; /* Wrap long lines when displaying */
- int mWrapMargin; /* Margin in # of char positions for
- wrapping in continuousWrap mode */
- int* mLineStarts;
- int mTopLineNum; /* Line number of top displayed line
- of file (first line of file is 1) */
- int mAbsTopLineNum; /* In continuous wrap mode, the line
- number of the top line if the text
- were not wrapped (note that this is
- only maintained as needed). */
- int mNeedAbsTopLineNum; /* Externally settable flag to continue
- maintaining absTopLineNum even if
- it isn't needed for line # display */
- int mHorizOffset; /* Horizontal scroll pos. in pixels */
- int mTopLineNumHint; /* Line number of top displayed line
- of file (first line of file is 1) */
- int mHorizOffsetHint; /* Horizontal scroll pos. in pixels */
- int mNStyles; /* Number of entries in styleTable */
- const Style_Table_Entry *mStyleTable; /* Table of fonts and colors for
- coloring/syntax-highlighting */
- char mUnfinishedStyle; /* Style buffer entry which triggers
- on-the-fly reparsing of region */
- Unfinished_Style_Cb mUnfinishedHighlightCB; /* Callback to parse "unfinished" */
- /* regions */
- void* mHighlightCBArg; /* Arg to unfinishedHighlightCB */
-
- int mMaxsize;
-
- int mFixedFontWidth; /* Font width if all current fonts are
- fixed and match in width, else -1 */
- int mSuppressResync; /* Suppress resynchronization of line
- starts during buffer updates */
- int mNLinesDeleted; /* Number of lines deleted during
- buffer modification (only used
- when resynchronization is suppressed) */
- int mModifyingTabDistance; /* Whether tab distance is being
- modified */
-
- Fl_Color mCursor_color;
-
- Fl_Scrollbar* mHScrollBar;
- Fl_Scrollbar* mVScrollBar;
- int scrollbar_width_;
- Fl_Align scrollbar_align_;
- int dragPos, dragType, dragging;
- int display_insert_position_hint;
- struct { int x, y, w, h; } text_area;
-
- uchar textfont_;
- uchar textsize_;
- unsigned textcolor_;
-
- // The following are not presently used from the original NEdit code,
- // but are being put here so that future versions of Fl_Text_Display
- // can implement line numbers without breaking binary compatibility.
- int mLineNumLeft, mLineNumWidth;
- /* Line number margin and width */
-};
-
-#endif
-
-//
-// End of "$Id: Fl_Text_Display.H,v 1.2 2002/12/01 15:38:37 neurosurg Exp $".
-//
projects / opencv / blobdiff