callisto-debian/gimp
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

store the original aspect ratio. Let the Ctrl key toggle the aspect ratio

Browse Source 
2006-12-29  Sven Neumann  <sven@gimp.org>

	* app/tools/gimptransformtool.[ch]: store the original aspect
ratio.
	Let the Ctrl key toggle the aspect ratio constraint also while
the
	mouse is being pressed.

	* app/tools/gimpscaletool.c (gimp_scale_tool_motion): use the
	original aspect ratio when applying the constraint.
This commit is contained in:
Sven Neumann
2006-12-29 20:04:34 +00:00
committed by Sven Neumann
parent c60d6fd58b
commit 4cbb8d7fad
4 changed files with 35 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
ChangeLog
View File

@ -1,3 +1,12 @@
2006-12-29 Sven Neumann <sven@gimp.org>
* app/tools/gimptransformtool.[ch]: store the original aspect ratio.
Let the Ctrl key toggle the aspect ratio constraint also while the
mouse is being pressed.
* app/tools/gimpscaletool.c (gimp_scale_tool_motion): use the
original aspect ratio when applying the constraint.
2006-12-29 Sven Neumann <sven@gimp.org>
* plug-ins/print/print.c: show print status information.

41
app/tools/gimpscaletool.c
View File

@ -250,31 +250,34 @@ gimp_scale_tool_motion (GimpTransformTool *tr_tool,
return;
}
*x1 += diff_x;
*y1 += diff_y;
/* if control is being held, constrain the aspect ratio */
if (options->constrain)
{
gdouble mag;
gdouble dot;
/* FIXME: improve this */
gdouble w = tr_tool->trans_info[X1] - tr_tool->trans_info[X0];
gdouble h = tr_tool->trans_info[Y1] - tr_tool->trans_info[Y0];
mag = hypot ((gdouble) (tr_tool->x2 - tr_tool->x1),
(gdouble) (tr_tool->y2 - tr_tool->y1));
dot = (dir_x * diff_x * (tr_tool->x2 - tr_tool->x1) +
dir_y * diff_y * (tr_tool->y2 - tr_tool->y1));
if (mag > 0.0)
switch (tr_tool->function)
{
diff_x = dir_x * (tr_tool->x2 - tr_tool->x1) * dot / (mag * mag);
diff_y = dir_y * (tr_tool->y2 - tr_tool->y1) * dot / (mag * mag);
}
else
{
diff_x = diff_y = 0;
}
}
case TRANSFORM_HANDLE_NW:
case TRANSFORM_HANDLE_SW:
tr_tool->trans_info[X0] =
tr_tool->trans_info[X1] - tr_tool->aspect * h;
break;
*x1 += diff_x;
*y1 += diff_y;
case TRANSFORM_HANDLE_NE:
case TRANSFORM_HANDLE_SE:
tr_tool->trans_info[X1] =
tr_tool->trans_info[X0] + tr_tool->aspect * h;
break;
default:
break;
}
}
if (dir_x > 0)
{

4
app/tools/gimptransformtool.c
View File

@ -175,6 +175,7 @@ gimp_transform_tool_class_init (GimpTransformToolClass *klass)
tool_class->motion = gimp_transform_tool_motion;
tool_class->key_press = gimp_transform_tool_key_press;
tool_class->modifier_key = gimp_transform_tool_modifier_key;
tool_class->active_modifier_key = gimp_transform_tool_modifier_key;
tool_class->oper_update = gimp_transform_tool_oper_update;
tool_class->cursor_update = gimp_transform_tool_cursor_update;
@ -1512,6 +1513,9 @@ gimp_transform_tool_bounds (GimpTransformTool *tr_tool,
tr_tool->cx = (gdouble) (tr_tool->x1 + tr_tool->x2) / 2.0;
tr_tool->cy = (gdouble) (tr_tool->y1 + tr_tool->y2) / 2.0;
tr_tool->aspect = ((gdouble) (tr_tool->x2 - tr_tool->x1) /
(gdouble) (tr_tool->y2 - tr_tool->y1));
/* changing the bounds invalidates any grid we may have */
if (tr_tool->use_grid)
gimp_transform_tool_grid_recalc (tr_tool);

1
app/tools/gimptransformtool.h
View File

@ -59,6 +59,7 @@ struct _GimpTransformTool
gint x1, y1; /* upper left hand coordinate */
gint x2, y2; /* lower right hand coords */
gdouble cx, cy; /* center point (for rotation) */
gdouble aspect; /* original aspect ratio */
gdouble tx1, ty1; /* transformed coords */
gdouble tx2, ty2;