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Diffstat (limited to 'fltk/fltk/TextDisplay.h')
| -rw-r--r-- | fltk/fltk/TextDisplay.h | 358 |
1 files changed, 0 insertions, 358 deletions
diff --git a/fltk/fltk/TextDisplay.h b/fltk/fltk/TextDisplay.h deleted file mode 100644 index 8877100..0000000 --- a/fltk/fltk/TextDisplay.h +++ /dev/null @@ -1,358 +0,0 @@ -// -// "$Id: TextDisplay.h 5432 2006-09-16 02:03:04Z spitzak $" -// -// Header file for TextDisplay class. -// -// Copyright 2001-2006 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 on the following page: -// -// http://www.fltk.org/str.php -// - -#ifndef _fltk_TextDisplay_h_ -#define _fltk_TextDisplay_h_ - -#include "draw.h" -#include "Group.h" -#include "Widget.h" -#include "Scrollbar.h" -#include "TextBuffer.h" -#include "Font.h" - -namespace fltk { - -typedef void (*UnfinishedStyleCb)(int, void *); - -/** TextDisplay */ -class FL_API TextDisplay: public Group { -public: - enum { - NORMAL_CURSOR, CARET_CURSOR, DIM_CURSOR, - BLOCK_CURSOR, HEAVY_CURSOR - }; - - enum { - CURSOR_POS, CHARACTER_POS - }; - - // drag types- they match fltk::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 - }; - - enum { - ATTR_NONE = 0, - ATTR_UNDERLINE = 1, - ATTR_HIDDEN = 2 - }; - - struct StyleTableEntry { - Color color; - Font *font; - float size; - unsigned attr; - }; - - TextDisplay(int X, int Y, int W, int H, const char *l = 0); - ~TextDisplay(); - - // Emulation of Input widget: - int size() const { return buffer_->length(); } - const char* text() const { return buffer_->text(); } - void text( const char* v) { buffer_->text(v); } - void static_text( const char* v) { buffer_->text(v); } - char at(int i) const { return buffer_->character(i); } - - virtual int handle(int e); - virtual void draw(); - virtual void layout(); - - /** Associate 'buf' with display */ - void buffer(TextBuffer* buf); - /** Associate 'buf' with display */ - void buffer(TextBuffer& buf) { buffer(&buf); } - - /** Return attached buffer */ - TextBuffer* buffer() { return buffer_; } - /** Return attached buffer */ - const TextBuffer* buffer() const { return buffer_; } - - /** Append text to the end of the buffer */ - void append(const char *text) { insert_position(buffer()->length()); insert(text); } - /** Insert text to current cursor position */ - void insert(const char *text); - /** Overstrike text from current cursor position */ - void overstrike(const char *text); - - /** Set new cursor position */ - void insert_position(int newPos); - /** Return current cursor position */ - int insert_position() const { return cursor_pos_; } - /** Make cursor position visible in screen */ - void show_insert_position(); - - /** Show cursor */ - void show_cursor(bool b = true); - /** Hide cursor */ - void hide_cursor() { show_cursor(false); } - /** Return cursor visibility state */ - bool cursor_on() const { return cursor_on_; } - /** Set cursor style */ - void cursor_style(int style); - - /** Return cursor color */ - Color cursor_color() const { return cursor_color_;} - /** Set cursor color */ - void cursor_color(Color n) { cursor_color_ = n; } - - /** Return begining of the word where 'pos' is located */ - int word_start(int pos) { return buffer()->word_start(pos); } - /** Return end of the word where 'pos' is located */ - int word_end(int pos) { return buffer()->word_end(pos); } - /** Go to next word */ - void next_word(void); - /** Go to previous word */ - void previous_word(void); - - /** Set wrapping mode. wrap_margin is width to wrap at, zero means use w() */ - void wrap_mode(bool wrap, int wrap_margin=0); - - /** Set line number area width */ - void linenumber_width(int width); - /** Return line number area width */ - int linenumber_width() const { return linenumwidth_; } - - /** Set new highlight data */ - void highlight_data(TextBuffer *styleBuffer, - StyleTableEntry *styleTable, - int nStyles, char unfinishedStyle, - UnfinishedStyleCb unfinishedHighlightCB, - void *cbArg); - - /** Move cursor right */ - bool move_right(); - /** Move cursor left */ - bool move_left(); - /** Move cursor down */ - bool move_up(); - /** Move cursor down */ - bool move_down(); - - /** Redisplay text */ - void redisplay_range(int start, int end); - - /** Scroll to new position */ - void scroll(int topLineNum, int horizOffset); - - /** Returns true if position is inside selection */ - bool in_selection(int x, int y); - - /** Returns begining of the line where 'pos' is located */ - int line_start(int pos); - - /** Returns end of the line where 'pos' is located */ - int line_end(int pos, bool start_pos_is_line_start = false); - - /** Return number of visible lines */ - int visible_lines() const { return visiblelines_cnt_; } - - /** Return current visible topline */ - int top_line() const { return topline_num_; } - - /** Return current horizontal offset */ - int hor_offset() const { return horiz_offset_; } - - /** Find start of the next character, starting from 'pos' - * If 'pos' points to start of character already, it is returned. - * This is mainly used with UTF-8 strings - */ - int find_next_char(int pos); - - /** Find start of the previous character, starting from 'pos' - * If 'pos' points to start of character already, it is returned. - * This is mainly used with UTF-8 strings - */ - int find_prev_char(int pos); - - 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); - - bool position_to_xy(int pos, int *X, int *Y); - - int total_lines() {return count_lines(0, buffer_->length(), true);} - -protected: - 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(); - - int count_lines(int start, int end, bool start_pos_is_line_start); - int skip_lines(int startPos, int nLines, bool startPosIsLineStart); - int rewind_lines(int startPos, int nLines); - int position_style(int lineStartPos, int lineLen, int lineIndex, int dispIndex); - - int wrapped_column(int row, int column); - int wrapped_row(int row); - - 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, bool *scrolled); - - void calc_last_char(); - - bool 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(Scrollbar* w, TextDisplay* d); - static void v_scrollbar_cb( Scrollbar* w, TextDisplay* d); - void update_v_scrollbar(); - void update_h_scrollbar(int longestvline = 0); - - void blank_cursor_protrusions(); - int measure_vline(int visLineNum); - int longest_vline(); - int empty_vlines(); - int vline_length(int visLineNum); - - void maintain_absolute_top_line_number(bool 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(); - bool 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(TextBuffer *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(TextBuffer *buf, int bufpos, int colNum, int pos); - int wrap_uses_character(int lineEndPos); - int range_touches_selection(TextSelection *sel, int rangeStart, int rangeEnd); - void text_drag_me(int pos); - - int damage_range1_start, damage_range1_end; - int damage_range2_start, damage_range2_end; - - int cursor_pos_; - bool cursor_on_; - int cursor_oldx_; /* X pos. of cursor for blanking */ - int cursor_oldy_; /* Y pos. of cursor for blanking */ - int cursor_hint_; /* Tells the buffer modified callback - where to move the cursor, to reduce - the number of redraw calls */ - int cursor_style_; /* One of enum cursorStyles above */ - int cursor_preferred_col_; /* Column for vert. cursor movement */ - int visiblelines_cnt_; /* # of visible (displayed) lines */ - int bufferlines_cnt_; /* # of newlines in the buffer */ - TextBuffer *buffer_; /* Contains text to be displayed */ - TextBuffer *stylebuffer_; /* Optional parallel buffer containing - color and font information */ - int firstchar_, lastchar_; /* Buffer positions of first and last - displayed character (lastChar points - either to a newline or one character - beyond the end of the buffer) */ - bool own_buffer; /* True if buffer_ created by constructor */ - bool continuous_wrap_; /* Wrap long lines when displaying */ - int wrapmargin_; /* Margin in # of char positions for - wrapping in continuousWrap mode */ - int *linestarts_; - int topline_num_; /* Line number of top displayed line - of file (first line of file is 1) */ - int abs_topline_num_; /* 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). */ - bool need_abs_topline_num_; /* Externally settable flag to continue - maintaining absTopLineNum even if - it isn't needed for line # display */ - int horiz_offset_; /* Horizontal scroll pos. in pixels */ - int numstyles_; /* Number of entries in styleTable */ - const StyleTableEntry *styletable_; /* Table of fonts and colors for - coloring/syntax-highlighting */ - char unfinished_style_; /* Style buffer entry which triggers - on-the-fly reparsing of region */ - UnfinishedStyleCb unfinished_highlight_cb_; /* Callback to parse "unfinished" */ - /* regions */ - void *highlight_cbarg_; /* Arg to unfinishedHighlightCB */ - int fixed_fontwidth_; /* Font width if all current fonts are - fixed and match in width, else -1 */ - bool suppressresync_; /* Suppress resynchronization of line - starts during buffer updates */ - int nlinesdeleted_; /* Number of lines deleted during - buffer modification (only used - when resynchronization is suppressed) */ - - int stdfontwidth_; - int ascent_; - int descent_; - int maxsize_; - - Color cursor_color_; - - Scrollbar *hscrollbar; - Scrollbar *vscrollbar; - - Rectangle text_area; - - int dragpos_, dragtype_, dragging_; - int linenumleft_, linenumwidth_; /* Line number margin and width */ -}; - -} /* namespace fltk */ - -#endif - -// -// End of "$Id: TextDisplay.h 5432 2006-09-16 02:03:04Z spitzak $". -// - |