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Find the cursor position from GtkEntry for the completion feedback

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Signed-off-by: Federico Mena Quintero <federico@gnu.org>

svn path=/trunk/; revision=19845
This commit is contained in:
Federico Mena Quintero 2008-03-13 00:44:12 +00:00 committed by Federico Mena Quintero
parent 197ab5dee8
commit 932e20e9df
1 changed files with 30 additions and 3 deletions
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33
gtk/gtkfilechooserentry.c
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@ -852,6 +852,33 @@ install_completion_feedback_timer (GtkFileChooserEntry *chooser_entry)
chooser_entry);
}
/* Gets the (x, y) position of the text cursor in the entry, in widget coordinates */
static void
get_entry_cursor_x (GtkFileChooserEntry *chooser_entry,
gint *x_ret)
{
/* FIXME: see the docs for gtk_entry_get_layout_offsets(). As an exercise for
* the reader, you have to implement support for the entry's scroll offset and
* RTL layouts and all the fancy Pango stuff.
*/
PangoLayout *layout;
gint layout_x, layout_y;
gint layout_index;
PangoRectangle strong_pos;
layout = gtk_entry_get_layout (GTK_ENTRY (chooser_entry));
gtk_entry_get_layout_offsets (GTK_ENTRY (chooser_entry), &layout_x, &layout_y);
layout_index = gtk_entry_text_index_to_layout_index (GTK_ENTRY (chooser_entry),
GTK_ENTRY (chooser_entry)->current_pos);
pango_layout_get_cursor_pos (layout, layout_index, &strong_pos, NULL);
*x_ret = layout_x + strong_pos.x / PANGO_SCALE;
}
static void
show_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
{
@ -859,6 +886,7 @@ show_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
GtkRequisition feedback_req;
gint entry_x, entry_y;
gint cursor_x;
GtkAllocation *entry_allocation;
int feedback_x, feedback_y;
@ -867,10 +895,9 @@ show_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
gdk_window_get_origin (GTK_WIDGET (chooser_entry)->window, &entry_x, &entry_y);
entry_allocation = &(GTK_WIDGET (chooser_entry)->allocation);
/* FIXME: find text cursor position in the screen, adjust the window to that */
/* FIXME: handle RTL positioning */
get_entry_cursor_x (chooser_entry, &cursor_x);
feedback_x = entry_x + entry_allocation->width - feedback_req.width;
feedback_x = entry_x + cursor_x + 2; /* FIXME: fit to the screen if we bump on the screen's edge */
feedback_y = entry_y + (entry_allocation->height - feedback_req.height) / 2;
printf ("showing completion feedback window at (%d, %d)\n", feedback_x, feedback_y);