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Add a comment that the just_selected_element is unused.

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2003-01-07  Matthias Clasen  <maclas@gmx.de>

	* gtk/gtktextview.h (struct _GtkTextView): Add a comment that
	the just_selected_element is unused.

	* gtk/gtktextview.c (extend_selection): New helper function to
	find the range that should be added to the selection.
	(selection_motion_event_handler):
	(gtk_text_view_start_selection_drag):
	(gtk_text_view_end_selection_drag):
	(selection_motion_event_handler):
	(selection_scan_timeout): Support select-by-words/lines.
	(gtk_text_view_button_press_event): Start a selection drag on
	double/triple clicks.  (#78599)
This commit is contained in:
Matthias Clasen 2003-01-06 23:07:06 +00:00 committed by Matthias Clasen
parent bc70dc94bf
commit f50f45bc86
7 changed files with 259 additions and 114 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
2003-01-07 Matthias Clasen <maclas@gmx.de>
* gtk/gtktextview.h (struct _GtkTextView): Add a comment that
the just_selected_element is unused.
* gtk/gtktextview.c (extend_selection): New helper function to
find the range that should be added to the selection.
(selection_motion_event_handler):
(gtk_text_view_start_selection_drag):
(gtk_text_view_end_selection_drag):
(selection_motion_event_handler):
(selection_scan_timeout): Support select-by-words/lines.
(gtk_text_view_button_press_event): Start a selection drag on
double/triple clicks. (#78599)
2003-01-06 Matthias Clasen <maclas@gmx.de>
Implement a utility function proposed in #102534:

15
ChangeLog.pre-2-10
View File

@ -1,3 +1,18 @@
2003-01-07 Matthias Clasen <maclas@gmx.de>
* gtk/gtktextview.h (struct _GtkTextView): Add a comment that
the just_selected_element is unused.
* gtk/gtktextview.c (extend_selection): New helper function to
find the range that should be added to the selection.
(selection_motion_event_handler):
(gtk_text_view_start_selection_drag):
(gtk_text_view_end_selection_drag):
(selection_motion_event_handler):
(selection_scan_timeout): Support select-by-words/lines.
(gtk_text_view_button_press_event): Start a selection drag on
double/triple clicks. (#78599)
2003-01-06 Matthias Clasen <maclas@gmx.de>
Implement a utility function proposed in #102534:

15
ChangeLog.pre-2-4
View File

@ -1,3 +1,18 @@
2003-01-07 Matthias Clasen <maclas@gmx.de>
* gtk/gtktextview.h (struct _GtkTextView): Add a comment that
the just_selected_element is unused.
* gtk/gtktextview.c (extend_selection): New helper function to
find the range that should be added to the selection.
(selection_motion_event_handler):
(gtk_text_view_start_selection_drag):
(gtk_text_view_end_selection_drag):
(selection_motion_event_handler):
(selection_scan_timeout): Support select-by-words/lines.
(gtk_text_view_button_press_event): Start a selection drag on
double/triple clicks. (#78599)
2003-01-06 Matthias Clasen <maclas@gmx.de>
Implement a utility function proposed in #102534:

15
ChangeLog.pre-2-6
View File

@ -1,3 +1,18 @@
2003-01-07 Matthias Clasen <maclas@gmx.de>
* gtk/gtktextview.h (struct _GtkTextView): Add a comment that
the just_selected_element is unused.
* gtk/gtktextview.c (extend_selection): New helper function to
find the range that should be added to the selection.
(selection_motion_event_handler):
(gtk_text_view_start_selection_drag):
(gtk_text_view_end_selection_drag):
(selection_motion_event_handler):
(selection_scan_timeout): Support select-by-words/lines.
(gtk_text_view_button_press_event): Start a selection drag on
double/triple clicks. (#78599)
2003-01-06 Matthias Clasen <maclas@gmx.de>
Implement a utility function proposed in #102534:

15
ChangeLog.pre-2-8
View File

@ -1,3 +1,18 @@
2003-01-07 Matthias Clasen <maclas@gmx.de>
* gtk/gtktextview.h (struct _GtkTextView): Add a comment that
the just_selected_element is unused.
* gtk/gtktextview.c (extend_selection): New helper function to
find the range that should be added to the selection.
(selection_motion_event_handler):
(gtk_text_view_start_selection_drag):
(gtk_text_view_end_selection_drag):
(selection_motion_event_handler):
(selection_scan_timeout): Support select-by-words/lines.
(gtk_text_view_button_press_event): Start a selection drag on
double/triple clicks. (#78599)
2003-01-06 Matthias Clasen <maclas@gmx.de>
Implement a utility function proposed in #102534:

267
gtk/gtktextview.c
View File

@ -3859,78 +3859,16 @@ gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
event->type == GDK_3BUTTON_PRESS) &&
event->button == 1)
{
GtkTextIter start, end;
GtkTextIter iter;
/* End the selection drag, otherwise we'd clear the new
* word/line selection on button release
*/
gtk_text_view_end_selection_drag (text_view, event);
gtk_text_layout_get_iter_at_pixel (text_view->layout,
&start,
&iter,
event->x + text_view->xoffset,
event->y + text_view->yoffset);
end = start;
if (event->type == GDK_2BUTTON_PRESS)
{
if (gtk_text_iter_inside_word (&start))
{
if (!gtk_text_iter_starts_word (&start))
gtk_text_iter_backward_word_start (&start);
if (!gtk_text_iter_ends_word (&end))
gtk_text_iter_forward_word_end (&end);
}
}
else if (event->type == GDK_3BUTTON_PRESS)
{
if (gtk_text_view_starts_display_line (text_view, &start))
{
/* If on a display line boundary, we assume the user
* clicked off the end of a line and we therefore select
* the line before the boundary.
*/
gtk_text_view_backward_display_line_start (text_view, &start);
}
else
{
/* start isn't on the start of a line, so we move it to the
* start, and move end to the end unless it's already there.
*/
gtk_text_view_backward_display_line_start (text_view, &start);
if (!gtk_text_view_starts_display_line (text_view, &end))
gtk_text_view_forward_display_line_end (text_view, &end);
}
}
if (event->state & GDK_SHIFT_MASK)
{
/* Take union of old and new selection */
GtkTextIter old_start, old_end;
gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
&old_start, &old_end);
gtk_text_iter_order (&start, &old_start);
gtk_text_iter_order (&old_end, &end);
/* Now start is the first of the starts, and end is the
* last of the ends
*/
}
gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
"selection_bound",
&start);
gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
"insert",
&end);
text_view->just_selected_element = TRUE;
gtk_text_view_start_selection_drag (text_view, &iter, event);
return TRUE;
}
@ -3957,11 +3895,6 @@ gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), event))
return TRUE;
else if (text_view->just_selected_element)
{
text_view->just_selected_element = FALSE;
return FALSE;
}
else if (text_view->pending_place_cursor_button == event->button)
{
GtkTextIter iter;
@ -5137,7 +5070,9 @@ selection_scan_timeout (gpointer data)
text_view = GTK_TEXT_VIEW (data);
DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
move_mark_to_pointer_and_scroll (text_view, "insert");
gtk_text_view_scroll_mark_onscreen (text_view,
gtk_text_buffer_get_mark (get_buffer (text_view),
"insert"));
GDK_THREADS_LEAVE ();
@ -5180,11 +5115,150 @@ drag_scan_timeout (gpointer data)
return TRUE;
}
typedef enum
{
SELECT_CHARACTERS,
SELECT_WORDS,
SELECT_LINES
} SelectionGranularity;
/*
* Move @start and @end to the boundaries of the selection unit (indicated by
* @granularity) which contained @start initially. Return wether @start was
* contained in a selection unit at all (which may not be the case for words).
*/
static gboolean
extend_selection (GtkTextView *text_view,
SelectionGranularity granularity,
GtkTextIter *start,
GtkTextIter *end)
{
gboolean extend = TRUE;
*end = *start;
if (granularity == SELECT_WORDS)
{
if (gtk_text_iter_inside_word (start))
{
if (!gtk_text_iter_starts_word (start))
gtk_text_iter_backward_word_start (start);
if (!gtk_text_iter_ends_word (end))
gtk_text_iter_forward_word_end (end);
}
else
extend = FALSE;
}
else if (granularity == SELECT_LINES)
{
if (gtk_text_view_starts_display_line (text_view, start))
{
/* If on a display line boundary, we assume the user
* clicked off the end of a line and we therefore select
* the line before the boundary.
*/
gtk_text_view_backward_display_line_start (text_view, start);
}
else
{
/* start isn't on the start of a line, so we move it to the
* start, and move end to the end unless it's already there.
*/
gtk_text_view_backward_display_line_start (text_view, start);
if (!gtk_text_view_starts_display_line (text_view, end))
gtk_text_view_forward_display_line_end (text_view, end);
}
}
return extend;
}
static gint
selection_motion_event_handler (GtkTextView *text_view, GdkEventMotion *event, gpointer data)
{
DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
SelectionGranularity granularity = GPOINTER_TO_INT (data);
if (granularity == SELECT_CHARACTERS)
{
move_mark_to_pointer_and_scroll (text_view, "insert");
}
else
{
gint x, y;
GdkModifierType state;
GtkTextIter start, end;
GtkTextIter old_start, old_end;
GtkTextIter ins, bound;
GtkTextBuffer *buffer;
buffer = get_buffer (text_view);
gdk_window_get_pointer (text_view->text_window->bin_window,
&x, &y, &state);
gtk_text_layout_get_iter_at_pixel (text_view->layout,
&start,
event->x + text_view->xoffset,
event->y + text_view->yoffset);
if (extend_selection (text_view, granularity, &start, &end))
{
/* Extend selection */
gtk_text_buffer_get_iter_at_mark (buffer,
&ins,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_get_iter_at_mark (buffer,
&bound,
gtk_text_buffer_get_selection_bound (buffer));
if (gtk_text_iter_compare (&ins, &bound) < 0)
{
old_start = ins;
old_end = bound;
}
else
{
old_start = bound;
old_end = ins;
}
if (gtk_text_iter_compare (&start, &old_start) < 0)
{
/* newly selected unit before the current selection */
ins = start;
bound = old_end;
}
else if (gtk_text_iter_compare (&old_end, &end) < 0)
{
/* newly selected unit after the current selection */
ins = end;
bound = old_start;
}
else if (gtk_text_iter_equal (&ins, &old_start))
{
/* newly selected unit inside the current selection
at the start */
if (!gtk_text_iter_equal (&ins, &start))
ins = end;
}
else
{
/* newly selected unit inside the current selection
at the end */
if (!gtk_text_iter_equal (&ins, &end))
ins = start;
}
gtk_text_buffer_select_range (buffer, &ins, &bound);
}
gtk_text_view_scroll_mark_onscreen (text_view,
gtk_text_buffer_get_mark (buffer,
"insert"));
}
/* If we had to scroll offscreen, insert a timeout to do so
* again. Note that in the timeout, even if the mouse doesn't
@ -5205,51 +5279,48 @@ gtk_text_view_start_selection_drag (GtkTextView *text_view,
const GtkTextIter *iter,
GdkEventButton *button)
{
GtkTextIter newplace;
GtkTextIter start, end;
GtkTextBuffer *buffer;
SelectionGranularity granularity;
g_return_if_fail (text_view->selection_drag_handler == 0);
if (button->type == GDK_2BUTTON_PRESS)
granularity = SELECT_WORDS;
else if (button->type == GDK_3BUTTON_PRESS)
granularity = SELECT_LINES;
else
granularity = SELECT_CHARACTERS;
gtk_grab_add (GTK_WIDGET (text_view));
buffer = get_buffer (text_view);
newplace = *iter;
start = *iter;
extend_selection (text_view, granularity, &start, &end);
if (button->state & GDK_SHIFT_MASK)
{
/* Extend selection */
GtkTextIter start, end;
GtkTextIter old_start, old_end;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
gtk_text_buffer_get_selection_bounds (buffer, &old_start, &old_end);
if (gtk_text_iter_compare (&newplace, &start) <= 0)
{
gtk_text_buffer_move_mark_by_name (buffer, "insert",
&newplace);
gtk_text_iter_order (&start, &old_start);
gtk_text_iter_order (&old_end, &end);
gtk_text_buffer_move_mark_by_name (buffer, "selection_bound",
&end);
/* Now start is the first of the starts, and end is the
* last of the ends
*/
}
else if (gtk_text_iter_compare (&newplace, &end) >= 0)
{
gtk_text_buffer_move_mark_by_name (buffer, "insert",
&newplace);
gtk_text_buffer_move_mark_by_name (buffer, "selection_bound",
&start);
}
}
else
{
/* Replace selection */
gtk_text_buffer_place_cursor (buffer, &newplace);
}
gtk_text_buffer_select_range (buffer, &end, &start);
text_view->selection_drag_handler = g_signal_connect (text_view,
"motion_notify_event",
G_CALLBACK (selection_motion_event_handler),
NULL);
GINT_TO_POINTER (granularity));
}
/* returns whether we were really dragging */
@ -5268,10 +5339,6 @@ gtk_text_view_end_selection_drag (GtkTextView *text_view, GdkEventButton *event)
text_view->scroll_timeout = 0;
}
/* one last update to current position */
DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
move_mark_to_pointer_and_scroll (text_view, "insert");
gtk_grab_remove (GTK_WIDGET (text_view));
return TRUE;

7
gtk/gtktextview.h
View File

@ -89,8 +89,11 @@ struct _GtkTextView
guint overwrite_mode : 1;
guint cursor_visible : 1;
guint need_im_reset : 1; /* If we have reset the IM since the last character entered */
/* just selected a word or line via double/triple click */
/* if we have reset the IM since the last character entered */
guint need_im_reset : 1;
/* this flag is no longer used */
guint just_selected_element : 1;
/* disable scrolling to cursor on focus */