static void
shear_y_mag_changed (GtkAdjustment *adj,
GimpTransformTool *tr_tool)
{
gdouble value = gtk_adjustment_get_value (adj);
if (value != tr_tool->trans_info[YSHEAR])
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
if (tr_tool->trans_info[HORZ_OR_VERT] == GIMP_ORIENTATION_UNKNOWN)
tr_tool->trans_info[HORZ_OR_VERT] = GIMP_ORIENTATION_VERTICAL;
tr_tool->trans_info[YSHEAR] = value;
gimp_transform_tool_push_internal_undo (tr_tool);
gimp_transform_tool_recalc_matrix (tr_tool);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
}
}
static void
rotate_angle_changed (GtkAdjustment *adj,
GimpTransformTool *tr_tool)
{
gdouble value = gimp_deg_to_rad (gtk_adjustment_get_value (adj));
#define ANGLE_EPSILON 0.0001
if (ABS (value - tr_tool->trans_info[ANGLE]) > ANGLE_EPSILON)
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
tr_tool->trans_info[REAL_ANGLE] = tr_tool->trans_info[ANGLE] = value;
gimp_transform_tool_push_internal_undo (tr_tool);
gimp_transform_tool_recalc_matrix (tr_tool);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
}
#undef ANGLE_EPSILON
}
static void
rotate_center_changed (GtkWidget *widget,
GimpTransformTool *tr_tool)
{
gdouble px = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
gdouble py = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
if ((px != tr_tool->trans_info[PIVOT_X]) ||
(py != tr_tool->trans_info[PIVOT_Y]))
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
tr_tool->trans_info[PIVOT_X] = px;
tr_tool->trans_info[PIVOT_Y] = py;
tr_tool->px = px;
tr_tool->py = py;
gimp_transform_tool_push_internal_undo (tr_tool);
gimp_transform_tool_recalc_matrix (tr_tool);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
}
}
static void
gimp_scale_tool_size_notify (GtkWidget *box,
GParamSpec *pspec,
GimpTransformTool *tr_tool)
{
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tr_tool);
if (! strcmp (pspec->name, "width") ||
! strcmp (pspec->name, "height"))
{
gint width;
gint height;
gint old_width;
gint old_height;
g_object_get (box,
"width", &width,
"height", &height,
NULL);
old_width = ROUND (tr_tool->trans_info[X1] - tr_tool->trans_info[X0]);
old_height = ROUND (tr_tool->trans_info[Y1] - tr_tool->trans_info[Y0]);
if ((width != old_width) || (height != old_height))
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
tr_tool->trans_info[X1] = tr_tool->trans_info[X0] + width;
tr_tool->trans_info[Y1] = tr_tool->trans_info[Y0] + height;
gimp_transform_tool_push_internal_undo (tr_tool);
gimp_transform_tool_recalc_matrix (tr_tool);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
}
}
else if (! strcmp (pspec->name, "keep-aspect"))
{
gboolean constrain;
g_object_get (box,
"keep-aspect", &constrain,
NULL);
if (constrain != options->constrain_scale)
{
gint width;
gint height;
g_object_get (box,
"width", &width,
"height", &height,
NULL);
/* Take the aspect ratio from the size box when the user
* activates the constraint by pressing the chain button.
*/
tr_tool->aspect = (gdouble) width / (gdouble) height;
g_object_set (options,
"constrain-scale", constrain,
NULL);
}
}
}
