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dl-fldigi/src/widgets/Fl_Text_Editor_mod.cxx

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//
// "$Id: Fl_Text_Editor_mod.cxx 8034 2010-12-15 12:21:55Z AlbrechtS $"
//
// Copyright 2001-2010 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 General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/fl_ask.H>
#include "Fl_Text_Editor_mod.H"
/* Keyboard Control Matrix
key\modifier plain Ctrl Alt Meta
left 1/1 13/9 0/13 0/9
right 2/2 14/10 0/14 0/10
up 3/19 21/7 0/15 0/17
down 4/20 22/8 0/16 0/18
home 9/5 17/0 0/0 0/0
end 10/6 18/0 0/0 0/0
page up 11/7 23/0 0/11 0/0
page down 12/8 24/0 0/12 0/0
(FLTK action / OS X action)
(adding the shift key extends the selection, all other combinations are no-op)
0: no-op
1: move cursor to the left, at line beginning wrap to end of prev line, at doc start no-op
2: move cursor to the right, at line end move to beginning of the next line, at doc end no-op
3: move cursor up, at doc top no-op
4: move cursor down, at doc bottom no-op
5: scroll display to top of text (cursor unchanged)
6: scroll display to end of text (cursor unchanged)
7: scroll text down one page (cursor unchanged)
8: scroll text up one page (cursor unchanged)
9: move cursor to beginning of line
10: move cursor to end of line
11: move cursor up one page and scroll down
12: move cursor down one page and scroll up
13: move to the beginning of the word or the previous word
14: move to the end of the word or the next word
15: if start of line: start of prev line, else start of this line
16: if end of line: end of next line, else end of this line
17: move cursor to the beginning of the document
18: move cursor to the end of the document
19: move cursor up, at doc top: home, at doc start: no-op)
20: move cursor down, at doc bot: end, at doc end: no-op)
21: scroll text down one line (cursor unchanged)
22: scroll text up one line (cursor unchanged)
23: move cursor to the beginning of the top of the screen
24: move cursor to the beginning of the bottom of the window
*/
/** The constructor creates a new text editor widget.*/
Fl_Text_Editor_mod::Fl_Text_Editor_mod(int X, int Y, int W, int H, const char* l)
: Fl_Text_Display_mod(X, Y, W, H, l) {
mCursorOn = 1;
insert_mode_ = 1;
key_bindings = 0;
// handle the default key bindings
add_default_key_bindings(&key_bindings);
// handle everything else
default_key_function(kf_default);
}
#ifndef FL_DOXYGEN
Fl_Text_Editor_mod::Key_Binding* Fl_Text_Editor_mod::global_key_bindings = 0;
#endif
// These are the default key bindings every widget should start with
static struct {
int key;
int state;
Fl_Text_Editor_mod::Key_Func func;
} default_key_bindings[] = {
{ FL_Escape, Fl_Text_Editor_mod_ANY_STATE, Fl_Text_Editor_mod::kf_ignore },
{ FL_Enter, Fl_Text_Editor_mod_ANY_STATE, Fl_Text_Editor_mod::kf_enter },
{ FL_KP_Enter, Fl_Text_Editor_mod_ANY_STATE, Fl_Text_Editor_mod::kf_enter },
{ FL_BackSpace, Fl_Text_Editor_mod_ANY_STATE, Fl_Text_Editor_mod::kf_backspace },
{ FL_Insert, Fl_Text_Editor_mod_ANY_STATE, Fl_Text_Editor_mod::kf_insert },
{ FL_Delete, Fl_Text_Editor_mod_ANY_STATE, Fl_Text_Editor_mod::kf_delete },
{ FL_Home, 0, Fl_Text_Editor_mod::kf_move },
{ FL_End, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Left, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Up, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Right, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Down, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Page_Up, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Page_Down, 0, Fl_Text_Editor_mod::kf_move },
{ FL_Home, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_End, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Left, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Up, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Right, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Down, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Page_Up, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Page_Down, FL_SHIFT, Fl_Text_Editor_mod::kf_shift_move },
{ FL_Home, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_End, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Left, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Up, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Right, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Down, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Page_Up, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Page_Down, FL_CTRL, Fl_Text_Editor_mod::kf_ctrl_move },
{ FL_Home, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_End, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_Left, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_Up, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_Right, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_Down, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_Page_Up, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
{ FL_Page_Down, FL_CTRL|FL_SHIFT, Fl_Text_Editor_mod::kf_c_s_move },
//{ FL_Clear, 0, Fl_Text_Editor_mod::delete_to_eol },
{ 'z', FL_CTRL, Fl_Text_Editor_mod::kf_undo },
{ '/', FL_CTRL, Fl_Text_Editor_mod::kf_undo },
{ 'x', FL_CTRL, Fl_Text_Editor_mod::kf_cut },
{ FL_Delete, FL_SHIFT, Fl_Text_Editor_mod::kf_cut },
{ 'c', FL_CTRL, Fl_Text_Editor_mod::kf_copy },
{ FL_Insert, FL_CTRL, Fl_Text_Editor_mod::kf_copy },
{ 'v', FL_CTRL, Fl_Text_Editor_mod::kf_paste },
{ FL_Insert, FL_SHIFT, Fl_Text_Editor_mod::kf_paste },
{ 'a', FL_CTRL, Fl_Text_Editor_mod::kf_select_all },
#ifdef __APPLE__
// Define CMD+key accelerators...
{ 'z', FL_COMMAND, Fl_Text_Editor_mod::kf_undo },
{ 'x', FL_COMMAND, Fl_Text_Editor_mod::kf_cut },
{ 'c', FL_COMMAND, Fl_Text_Editor_mod::kf_copy },
{ 'v', FL_COMMAND, Fl_Text_Editor_mod::kf_paste },
{ 'a', FL_COMMAND, Fl_Text_Editor_mod::kf_select_all },
{ FL_Left, FL_COMMAND, Fl_Text_Editor_mod::kf_meta_move },
{ FL_Right, FL_COMMAND, Fl_Text_Editor_mod::kf_meta_move },
{ FL_Up, FL_COMMAND, Fl_Text_Editor_mod::kf_meta_move },
{ FL_Down, FL_COMMAND, Fl_Text_Editor_mod::kf_meta_move },
{ FL_Left, FL_COMMAND|FL_SHIFT, Fl_Text_Editor_mod::kf_m_s_move },
{ FL_Right, FL_COMMAND|FL_SHIFT, Fl_Text_Editor_mod::kf_m_s_move },
{ FL_Up, FL_COMMAND|FL_SHIFT, Fl_Text_Editor_mod::kf_m_s_move },
{ FL_Down, FL_COMMAND|FL_SHIFT, Fl_Text_Editor_mod::kf_m_s_move },
#endif // __APPLE__
{ 0, 0, 0 }
};
/** Adds all of the default editor key bindings to the specified key binding list.*/
void Fl_Text_Editor_mod::add_default_key_bindings(Key_Binding** list) {
for (int i = 0; default_key_bindings[i].key; i++) {
add_key_binding(default_key_bindings[i].key,
default_key_bindings[i].state,
default_key_bindings[i].func,
list);
}
}
/** Returns the function associated with a key binding.*/
Fl_Text_Editor_mod::Key_Func Fl_Text_Editor_mod::bound_key_function(int key, int state, Key_Binding* list) {
Key_Binding* cur;
for (cur = list; cur; cur = cur->next)
if (cur->key == key)
if (cur->state == Fl_Text_Editor_mod_ANY_STATE || cur->state == state)
break;
if (!cur) return 0;
return cur->function;
}
/** Removes all of the key bindings associated with the text editor or list.*/
void Fl_Text_Editor_mod::remove_all_key_bindings(Key_Binding** list) {
Key_Binding *cur, *next;
for (cur = *list; cur; cur = next) {
next = cur->next;
delete cur;
}
*list = 0;
}
/** Removes the key binding associated with the key "key" of state "state" */
void Fl_Text_Editor_mod::remove_key_binding(int key, int state, Key_Binding** list) {
Key_Binding *cur, *last = 0;
for (cur = *list; cur; last = cur, cur = cur->next)
if (cur->key == key && cur->state == state) break;
if (!cur) return;
if (last) last->next = cur->next;
else *list = cur->next;
delete cur;
}
/** Adds a key of state "state" with the function "function" */
void Fl_Text_Editor_mod::add_key_binding(int key, int state, Key_Func function,
Key_Binding** list) {
Key_Binding* kb = new Key_Binding;
kb->key = key;
kb->state = state;
kb->function = function;
kb->next = *list;
*list = kb;
}
////////////////////////////////////////////////////////////////
static void kill_selection(Fl_Text_Editor_mod* e) {
if (e->buffer()->selected()) {
e->insert_position(e->buffer()->primary_selection()->start());
e->buffer()->remove_selection();
}
}
/** Inserts the text associated with the key */
int Fl_Text_Editor_mod::kf_default(int c, Fl_Text_Editor_mod* e) {
// FIXME: this function is a mess! Fix this!
if (!c || (!isprint(c) && c != '\t')) return 0;
char s[2] = "\0";
s[0] = (char)c;
kill_selection(e);
if (e->insert_mode()) e->insert(s);
else e->overstrike(s);
e->show_insert_position();
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return 1;
}
/** Ignores the keypress */
int Fl_Text_Editor_mod::kf_ignore(int, Fl_Text_Editor_mod*) {
return 0; // don't handle
}
/** Does a backspace in the current buffer.*/
int Fl_Text_Editor_mod::kf_backspace(int, Fl_Text_Editor_mod* e) {
if (!e->buffer()->selected() && e->move_left()) {
int p1 = e->insert_position();
int p2 = e->buffer()->next_char(p1);
e->buffer()->select(p1, p2);
}
kill_selection(e);
e->show_insert_position();
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return 1;
}
/** Inserts a newline at the current cursor position */
int Fl_Text_Editor_mod::kf_enter(int, Fl_Text_Editor_mod* e) {
kill_selection(e);
e->insert("\n");
e->show_insert_position();
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return 1;
}
extern void fl_text_drag_me(int pos, Fl_Text_Display_mod* d);
/** Moves the text cursor in the direction indicated by key c.*/
int Fl_Text_Editor_mod::kf_move(int c, Fl_Text_Editor_mod* e) {
int i;
int selected = e->buffer()->selected();
if (!selected)
e->dragPos = e->insert_position();
e->buffer()->unselect();
Fl::copy("", 0, 0);
switch (c) {
case FL_Home:
e->insert_position(e->buffer()->line_start(e->insert_position()));
break;
case FL_End:
e->insert_position(e->buffer()->line_end(e->insert_position()));
break;
case FL_Left:
e->move_left();
break;
case FL_Right:
e->move_right();
break;
case FL_Up:
e->move_up();
break;
case FL_Down:
e->move_down();
break;
case FL_Page_Up:
for (i = 0; i < e->mNVisibleLines - 1; i++) e->move_up();
break;
case FL_Page_Down:
for (i = 0; i < e->mNVisibleLines - 1; i++) e->move_down();
break;
}
e->show_insert_position();
return 1;
}
/** Extends the current selection in the direction of key c.*/
int Fl_Text_Editor_mod::kf_shift_move(int c, Fl_Text_Editor_mod* e) {
kf_move(c, e);
fl_text_drag_me(e->insert_position(), e);
char *copy = e->buffer()->selection_text();
if (copy) {
Fl::copy(copy, strlen(copy), 0);
free(copy);
}
return 1;
}
/** Moves the current text cursor in the direction indicated by control key */
int Fl_Text_Editor_mod::kf_ctrl_move(int c, Fl_Text_Editor_mod* e) {
if (!e->buffer()->selected())
e->dragPos = e->insert_position();
if (c != FL_Up && c != FL_Down) {
e->buffer()->unselect();
Fl::copy("", 0, 0);
e->show_insert_position();
}
switch (c) {
case FL_Home:
e->insert_position(0);
e->scroll(0, 0);
break;
case FL_End:
e->insert_position(e->buffer()->length());
e->scroll(e->count_lines(0, e->buffer()->length(), 1), 0);
break;
case FL_Left:
e->previous_word();
break;
case FL_Right:
e->next_word();
break;
case FL_Up:
e->scroll(e->mTopLineNum-1, e->mHorizOffset);
break;
case FL_Down:
e->scroll(e->mTopLineNum+1, e->mHorizOffset);
break;
case FL_Page_Up:
e->insert_position(e->mLineStarts[0]);
break;
case FL_Page_Down:
e->insert_position(e->mLineStarts[e->mNVisibleLines-2]);
break;
}
return 1;
}
/** Moves the current text cursor in the direction indicated by meta key */
int Fl_Text_Editor_mod::kf_meta_move(int c, Fl_Text_Editor_mod* e) {
if (!e->buffer()->selected())
e->dragPos = e->insert_position();
if (c != FL_Up && c != FL_Down) {
e->buffer()->unselect();
Fl::copy("", 0, 0);
e->show_insert_position();
}
switch (c) {
case FL_Up: // top of buffer
e->insert_position(0);
e->scroll(0, 0);
break;
case FL_Down: // end of buffer
e->insert_position(e->buffer()->length());
e->scroll(e->count_lines(0, e->buffer()->length(), 1), 0);
break;
case FL_Left: // beginning of line
kf_move(FL_Home, e);
break;
case FL_Right: // end of line
kf_move(FL_End, e);
break;
}
return 1;
}
/** Extends the current selection in the direction indicated by meta key c. */
int Fl_Text_Editor_mod::kf_m_s_move(int c, Fl_Text_Editor_mod* e) {
kf_meta_move(c, e);
fl_text_drag_me(e->insert_position(), e);
return 1;
}
/** Extends the current selection in the direction indicated by control key c. */
int Fl_Text_Editor_mod::kf_c_s_move(int c, Fl_Text_Editor_mod* e) {
kf_ctrl_move(c, e);
fl_text_drag_me(e->insert_position(), e);
return 1;
}
/** Moves the text cursor to the beginning of the current line.*/
int Fl_Text_Editor_mod::kf_home(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Home, e);
}
/** Moves the text cursor to the end of the current line.*/
int Fl_Text_Editor_mod::kf_end(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_End, e);
}
/** Moves the text cursor one character to the left.*/
int Fl_Text_Editor_mod::kf_left(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Left, e);
}
/** Moves the text cursor one line up.*/
int Fl_Text_Editor_mod::kf_up(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Up, e);
}
/** Moves the text cursor one character to the right.*/
int Fl_Text_Editor_mod::kf_right(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Right, e);
}
/** Moves the text cursor one line down.*/
int Fl_Text_Editor_mod::kf_down(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Down, e);
}
/** Moves the text cursor up one page.*/
int Fl_Text_Editor_mod::kf_page_up(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Page_Up, e);
}
/** Moves the text cursor down one page.*/
int Fl_Text_Editor_mod::kf_page_down(int, Fl_Text_Editor_mod* e) {
return kf_move(FL_Page_Down, e);
}
/** Toggles the insert mode in the text editor.*/
int Fl_Text_Editor_mod::kf_insert(int, Fl_Text_Editor_mod* e) {
e->insert_mode(e->insert_mode() ? 0 : 1);
return 1;
}
/** Does a delete of selected text or the current character in the current buffer.*/
int Fl_Text_Editor_mod::kf_delete(int, Fl_Text_Editor_mod* e) {
if (!e->buffer()->selected()) {
int p1 = e->insert_position();
int p2 = e->buffer()->next_char(p1);
e->buffer()->select(p1, p2);
}
kill_selection(e);
e->show_insert_position();
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return 1;
}
/** Does a copy of selected text or the current character in the current buffer.*/
int Fl_Text_Editor_mod::kf_copy(int, Fl_Text_Editor_mod* e) {
if (!e->buffer()->selected()) return 1;
const char *copy = e->buffer()->selection_text();
if (*copy) Fl::copy(copy, strlen(copy), 1);
free((void*)copy);
e->show_insert_position();
return 1;
}
/** Does a cut of selected text in the current buffer.*/
int Fl_Text_Editor_mod::kf_cut(int c, Fl_Text_Editor_mod* e) {
kf_copy(c, e);
kill_selection(e);
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return 1;
}
/** Does a paste of selected text in the current buffer.*/
int Fl_Text_Editor_mod::kf_paste(int, Fl_Text_Editor_mod* e) {
kill_selection(e);
Fl::paste(*e, 1);
e->show_insert_position();
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return 1;
}
/** Selects all text in the current buffer.*/
int Fl_Text_Editor_mod::kf_select_all(int, Fl_Text_Editor_mod* e) {
e->buffer()->select(0, e->buffer()->length());
const char *copy = e->buffer()->selection_text();
if (*copy) Fl::copy(copy, strlen(copy), 0);
free((void*)copy);
return 1;
}
/** Undo last edit in the current buffer. Also deselect previous selection. */
int Fl_Text_Editor_mod::kf_undo(int , Fl_Text_Editor_mod* e) {
e->buffer()->unselect();
Fl::copy("", 0, 0);
int crsr;
int ret = e->buffer()->undo(&crsr);
e->insert_position(crsr);
e->show_insert_position();
e->set_changed();
if (e->when()&FL_WHEN_CHANGED) e->do_callback();
return ret;
}
/** Handles a key press in the editor */
int Fl_Text_Editor_mod::handle_key() {
// Call FLTK's rules to try to turn this into a printing character.
// This uses the right-hand ctrl key as a "compose prefix" and returns
// the changes that should be made to the text, as a number of
// bytes to delete and a string to insert:
int del = 0;
if (Fl::compose(del)) {
if (del) {
int dp = insert_position(), di = del;
while (di--) dp = buffer()->prev_char_clipped(dp);
buffer()->select(dp, insert_position());
}
kill_selection(this);
if (Fl::event_length()) {
if (insert_mode()) insert(Fl::event_text());
else overstrike(Fl::event_text());
}
show_insert_position();
set_changed();
if (when()&FL_WHEN_CHANGED) do_callback();
return 1;
}
int key = Fl::event_key(), state = Fl::event_state(), c = Fl::event_text()[0];
state &= FL_SHIFT|FL_CTRL|FL_ALT|FL_META; // only care about these states
Key_Func f;
f = bound_key_function(key, state, global_key_bindings);
if (!f) f = bound_key_function(key, state, key_bindings);
if (f) return f(key, this);
if (default_key_function_ && !state) return default_key_function_(c, this);
return 0;
}
/** does or does not a callback according to changed() and when() settings */
void Fl_Text_Editor_mod::maybe_do_callback() {
// printf("Fl_Text_Editor_mod::maybe_do_callback()\n");
// printf("changed()=%d, when()=%x\n", changed(), when());
if (changed() || (when()&FL_WHEN_NOT_CHANGED)) do_callback();
}
int Fl_Text_Editor_mod::handle(int event) {
static int dndCursorPos;
if (!buffer()) return 0;
switch (event) {
case FL_FOCUS:
show_cursor(mCursorOn); // redraws the cursor
if (buffer()->selected()) redraw(); // Redraw selections...
Fl::focus(this);
return 1;
case FL_UNFOCUS:
show_cursor(mCursorOn); // redraws the cursor
if (buffer()->selected()) redraw(); // Redraw selections...
case FL_HIDE:
if (when() & FL_WHEN_RELEASE) maybe_do_callback();
return 1;
case FL_KEYBOARD:
if (active_r() && window() && this == Fl::belowmouse())
window()->cursor(FL_CURSOR_NONE);
return handle_key();
case FL_PASTE:
if (!Fl::event_text()) {
fl_beep();
return 1;
}
buffer()->remove_selection();
if (insert_mode()) insert(Fl::event_text());
else overstrike(Fl::event_text());
show_insert_position();
set_changed();
if (when()&FL_WHEN_CHANGED) do_callback();
return 1;
case FL_ENTER:
// MRS: WIN32 only? Need to test!
// case FL_MOVE:
show_cursor(mCursorOn);
return 1;
case FL_PUSH:
if (Fl::event_button() == 2) {
// don't let the text_display see this event
if (Fl_Group::handle(event)) return 1;
dragType = DRAG_NONE;
if(buffer()->selected()) {
buffer()->unselect();
}
int pos = xy_to_position(Fl::event_x(), Fl::event_y(), CURSOR_POS);
insert_position(pos);
Fl::paste(*this, 0);
Fl::focus(this);
set_changed();
if (when()&FL_WHEN_CHANGED) do_callback();
return 1;
}
break;
case FL_SHORTCUT:
if (!(shortcut() ? Fl::test_shortcut(shortcut()) : test_shortcut()))
return 0;
if (Fl::visible_focus() && handle(FL_FOCUS)) {
Fl::focus(this);
return 1;
}
break;
// Handle drag'n'drop attempt by the user. This is a simplified
// implementation which allows dnd operations onto the scroll bars.
case FL_DND_ENTER: // save the current cursor position
if (Fl::visible_focus() && handle(FL_FOCUS))
Fl::focus(this);
show_cursor(mCursorOn);
dndCursorPos = insert_position();
/* fall through */
case FL_DND_DRAG: // show a temporary insertion cursor
insert_position(xy_to_position(Fl::event_x(), Fl::event_y(), CURSOR_POS));
return 1;
case FL_DND_LEAVE: // restore original cursor
insert_position(dndCursorPos);
return 1;
case FL_DND_RELEASE: // keep insertion cursor and wait for the FL_PASTE event
buffer()->unselect(); // FL_PASTE must not destroy current selection!
return 1;
}
return Fl_Text_Display_mod::handle(event);
}
//
// End of "$Id: Fl_Text_Editor_mod.cxx 8034 2010-12-15 12:21:55Z AlbrechtS $".
//
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