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Correctly keep the same text on the top of the screen, considering that

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2001-10-23  Havoc Pennington  <hp@redhat.com>

	* gtk/gtktextview.c (changed_handler): Correctly keep the same
	text on the top of the screen, considering that the changed region
	may have overlapped the first paragraph. Should fix msw's "text
	widget scrolled to wrong place on map" bug, and probably some
	other scrolling cases as well.
	(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
	instead of some random value

	* gtk/gtktextview.c (gtk_text_view_class_init): actually override
	grab_focus, so #59708 is really fixed
This commit is contained in:
Havoc Pennington 2001-10-23 23:06:14 +00:00 committed by Havoc Pennington
parent fd3196d9ed
commit 14cc0e8f77
8 changed files with 135 additions and 18 deletions
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15
ChangeLog
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

15
ChangeLog.pre-2-0
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

15
ChangeLog.pre-2-10
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

15
ChangeLog.pre-2-2
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

15
ChangeLog.pre-2-4
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

15
ChangeLog.pre-2-6
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

15
ChangeLog.pre-2-8
View File

@ -1,3 +1,16 @@
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
@ -13,7 +26,7 @@
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
optimize to avoid full redraw everytime we queue a resize.
2001-10-23 Havoc Pennington <hp@redhat.com>

48
gtk/gtktextview.c
View File

@ -470,7 +470,8 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
widget_class->focus_out_event = gtk_text_view_focus_out_event;
widget_class->motion_notify_event = gtk_text_view_motion_event;
widget_class->expose_event = gtk_text_view_expose_event;
widget_class->grab_focus = gtk_text_view_grab_focus;
widget_class->drag_begin = gtk_text_view_drag_begin;
widget_class->drag_end = gtk_text_view_drag_end;
widget_class->drag_data_get = gtk_text_view_drag_data_get;
@ -2823,11 +2824,11 @@ invalidated_handler (GtkTextLayout *layout,
}
static void
changed_handler (GtkTextLayout *layout,
gint start_y,
gint old_height,
gint new_height,
gpointer data)
changed_handler (GtkTextLayout *layout,
gint start_y,
gint old_height,
gint new_height,
gpointer data)
{
GtkTextView *text_view;
GtkWidget *widget;
@ -2883,10 +2884,29 @@ changed_handler (GtkTextLayout *layout,
{
gboolean yoffset_changed = FALSE;
GSList *tmp_list;
int new_first_para_top;
int old_first_para_top;
if (start_y + old_height <= text_view->yoffset - text_view->first_para_pixels)
/* If the bottom of the old area was above the top of the
* screen, we need to scroll to keep the current top of the
* screen in place. Remember that first_para_pixels is the
* position of the top of the screen in coordinates relative to
* the first paragraph onscreen.
*
* In short we are adding the height delta of the portion of the
* changed region above first_para_mark to text_view->yoffset.
*/
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
text_view->first_para_mark);
gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
old_first_para_top = text_view->yoffset - text_view->first_para_pixels;
if (new_first_para_top != old_first_para_top)
{
text_view->yoffset += new_height - old_height;
text_view->yoffset += new_first_para_top - old_first_para_top;
get_vadjustment (text_view)->value = text_view->yoffset;
yoffset_changed = TRUE;
}
@ -5090,7 +5110,7 @@ gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
text_view->hadjustment = hadj;
g_object_ref (G_OBJECT (text_view->hadjustment));
gtk_object_sink (GTK_OBJECT (text_view->hadjustment));
gtk_signal_connect (GTK_OBJECT (text_view->hadjustment), "value_changed",
(GtkSignalFunc) gtk_text_view_value_changed,
text_view);
@ -5102,7 +5122,7 @@ gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
text_view->vadjustment = vadj;
g_object_ref (G_OBJECT (text_view->vadjustment));
gtk_object_sink (GTK_OBJECT (text_view->vadjustment));
gtk_signal_connect (GTK_OBJECT (text_view->vadjustment), "value_changed",
(GtkSignalFunc) gtk_text_view_value_changed,
text_view);
@ -5122,9 +5142,15 @@ gtk_text_view_value_changed (GtkAdjustment *adj,
gint dx = 0;
gint dy = 0;
/* Note that we oddly call this function with adj == NULL
* sometimes
*/
text_view->onscreen_validated = FALSE;
DV(g_print(">Scroll offset changed, onscreen_validated = FALSE ("G_STRLOC")\n"));
DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
adj == text_view->hadjustment ? "hadj" : adj == text_view->vadjustment ? "vadj" : "none",
adj ? adj->value : 0.0));
if (adj == text_view->hadjustment)
{