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Fixes #881 Fix two bugs --

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gtk_xtext_find_char() adjust negative y for int typecast
	gtk_xtext_find_x() return out_of_bounds TRUE if line outside windodw
	gtk_xtext_selection_draw() recognize TRUE out_of_bounds
This commit is contained in:
RichardHitt 2014-01-29 11:56:23 -08:00 committed by Arnavion
parent 6487e1b391
commit 007f49c39f
1 changed files with 31 additions and 7 deletions
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38
src/fe-gtk/xtext.c
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@ -857,7 +857,10 @@ gtk_xtext_find_x (GtkXText * xtext, int x, textentry * ent, int subline,
indent = xtext->buffer->indent;
if (line > xtext->adj->page_size || line < 0)
{
*out_of_bounds = TRUE;
return 0;
}
if (xtext->buffer->grid_dirty || line > 255)
{
@ -890,6 +893,10 @@ gtk_xtext_find_char (GtkXText * xtext, int x, int y, int *off,
int line;
int subline;
/* Adjust y value for negative rounding, double to int */
if (y < 0)
y -= xtext->fontsize;
line = (y + xtext->pixel_offset) / xtext->fontsize;
ent = gtk_xtext_nth (xtext, line + (int)xtext->adj->value, &subline);
if (!ent)
@ -1270,6 +1277,9 @@ gtk_xtext_selection_draw (GtkXText * xtext, GdkEventMotion * event, gboolean ren
gtk_xtext_render_page (xtext);
return;
}
else if (tmp) {
offset_start = xtext->buffer->last_offset_start;
}
ent_end = gtk_xtext_find_char (xtext, high_x, high_y, &offset_end, &tmp);
if (!ent_end)
@ -1283,6 +1293,10 @@ gtk_xtext_selection_draw (GtkXText * xtext, GdkEventMotion * event, gboolean ren
}
offset_end = ent_end->str_len;
}
else if (tmp)
{
offset_end = xtext->buffer->last_offset_end;
}
/* marking less than a complete line? */
/* make sure "start" is smaller than "end" (swap them if need be) */
@ -1317,6 +1331,11 @@ gtk_xtext_selection_draw (GtkXText * xtext, GdkEventMotion * event, gboolean ren
ent = ent->next;
}
}
else
{
if (xtext->mark_stamp)
offset_start = 0;
}
if (render)
gtk_xtext_selection_render (xtext, ent_start, offset_start, ent_end, offset_end);
@ -1351,7 +1370,6 @@ gtk_xtext_scrolldown_timeout (GtkXText * xtext)
return 0;
}
adj->value = (int)adj->value; /* Align to line boundary */
xtext->select_start_y -= xtext->fontsize;
xtext->select_start_adj++;
adj->value++;
@ -1372,6 +1390,7 @@ gtk_xtext_scrollup_timeout (GtkXText * xtext)
int p_y;
xtext_buffer *buf = xtext->buffer;
GtkAdjustment *adj = xtext->adj;
int delta_y;
gdk_window_get_pointer (GTK_WIDGET (xtext)->window, 0, &p_y, 0);
@ -1384,10 +1403,16 @@ gtk_xtext_scrollup_timeout (GtkXText * xtext)
return 0;
}
adj->value = (int)adj->value; /* Align to line boundary */
xtext->select_start_y += xtext->fontsize;
xtext->select_start_adj--;
adj->value--;
if (adj->value < 0)
{
delta_y = adj->value * xtext->fontsize;
adj->value = 0;
} else {
delta_y = xtext->fontsize;
adj->value--;
}
xtext->select_start_y += delta_y;
xtext->select_start_adj = adj->value;
gtk_adjustment_value_changed (adj);
gtk_xtext_selection_draw (xtext, NULL, TRUE);
gtk_xtext_render_ents (xtext, buf->pagetop_ent->prev, buf->last_ent_end);
@ -1793,10 +1818,9 @@ gtk_xtext_unselect (GtkXText *xtext)
gtk_xtext_selection_clear (xtext->buffer);
/* FIXME: use jump_out on multi-line selects too! */
gtk_xtext_render_ents (xtext, buf->last_ent_start, buf->last_ent_end);
xtext->jump_in_offset = 0;
xtext->jump_out_offset = 0;
gtk_xtext_render_ents (xtext, buf->last_ent_start, buf->last_ent_end);
xtext->skip_border_fills = FALSE;
xtext->skip_stamp = FALSE;