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app: in Unified Transform tool, avoid moving pivot when locked

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In GimpUnifiedTransfomTool, avoid moving the pivot when
readjusting, and when the transform directions are linked, if the
pivot is locked.

(cherry picked from commit d7c995153d)
This commit is contained in:
Ell
2020-04-27 16:49:13 +03:00
parent 7746da33de
commit 916d8bb66d
1 changed files with 56 additions and 19 deletions
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37
app/tools/gimpunifiedtransformtool.c
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@ -60,6 +60,8 @@ enum
static void gimp_unified_transform_tool_matrix_to_info (GimpTransformGridTool *tg_tool,
const GimpMatrix3 *transform);
static void gimp_unified_transform_tool_apply_info (GimpTransformGridTool *tg_tool,
const TransInfo info);
static void gimp_unified_transform_tool_prepare (GimpTransformGridTool *tg_tool);
static void gimp_unified_transform_tool_readjust (GimpTransformGridTool *tg_tool);
static GimpToolWidget * gimp_unified_transform_tool_get_widget (GimpTransformGridTool *tg_tool);
@ -101,6 +103,7 @@ gimp_unified_transform_tool_class_init (GimpUnifiedTransformToolClass *klass)
GimpGenericTransformToolClass *generic_class = GIMP_GENERIC_TRANSFORM_TOOL_CLASS (klass);
tg_class->matrix_to_info = gimp_unified_transform_tool_matrix_to_info;
tg_class->apply_info = gimp_unified_transform_tool_apply_info;
tg_class->prepare = gimp_unified_transform_tool_prepare;
tg_class->readjust = gimp_unified_transform_tool_readjust;
tg_class->get_widget = gimp_unified_transform_tool_get_widget;
@ -123,6 +126,10 @@ gimp_unified_transform_tool_matrix_to_info (GimpTransformGridTool *tg_tool,
const GimpMatrix3 *transform)
{
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tg_tool);
GimpTransformGridOptions *tg_options = GIMP_TRANSFORM_GRID_TOOL_GET_OPTIONS (tg_tool);
if (! tg_options->fixedpivot)
{
GimpMatrix3 transfer;
gimp_transform_grid_tool_info_to_matrix (tg_tool, &transfer);
@ -134,6 +141,7 @@ gimp_unified_transform_tool_matrix_to_info (GimpTransformGridTool *tg_tool,
tg_tool->trans_info[PIVOT_Y],
&tg_tool->trans_info[PIVOT_X],
&tg_tool->trans_info[PIVOT_Y]);
}
gimp_matrix3_transform_point (transform,
tr_tool->x1,
@ -157,6 +165,31 @@ gimp_unified_transform_tool_matrix_to_info (GimpTransformGridTool *tg_tool,
&tg_tool->trans_info[Y3]);
}
static void
gimp_unified_transform_tool_apply_info (GimpTransformGridTool *tg_tool,
const TransInfo info)
{
GimpTransformGridOptions *tg_options = GIMP_TRANSFORM_GRID_TOOL_GET_OPTIONS (tg_tool);
tg_tool->trans_info[X0] = info[X0];
tg_tool->trans_info[Y0] = info[Y0];
tg_tool->trans_info[X1] = info[X1];
tg_tool->trans_info[Y1] = info[Y1];
tg_tool->trans_info[X2] = info[X2];
tg_tool->trans_info[Y2] = info[Y2];
tg_tool->trans_info[X3] = info[X3];
tg_tool->trans_info[Y3] = info[Y3];
if (! tg_options->fixedpivot)
{
tg_tool->trans_info[PIVOT_X] = info[PIVOT_X];
tg_tool->trans_info[PIVOT_Y] = info[PIVOT_Y];
}
}
static void
gimp_unified_transform_tool_prepare (GimpTransformGridTool *tg_tool)
{
@ -181,6 +214,7 @@ static void
gimp_unified_transform_tool_readjust (GimpTransformGridTool *tg_tool)
{
GimpTool *tool = GIMP_TOOL (tg_tool);
GimpTransformGridOptions *tg_options = GIMP_TRANSFORM_GRID_TOOL_GET_OPTIONS (tg_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
gdouble x;
gdouble y;
@ -192,10 +226,13 @@ gimp_unified_transform_tool_readjust (GimpTransformGridTool *tg_tool)
GIMP_TOOL_TRANSFORM_GRID_MAX_HANDLE_SIZE / 2.0,
GIMP_TOOL_TRANSFORM_GRID_MAX_HANDLE_SIZE / 2.0);
if (! tg_options->fixedpivot)
{
gimp_display_shell_untransform_xy_f (shell,
x, y,
&tg_tool->trans_info[PIVOT_X],
&tg_tool->trans_info[PIVOT_Y]);
}
gimp_display_shell_untransform_xy_f (shell,
x - r, y - r,