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app: transform the transform grid lines on the fly

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which is much less code than keeping the transformed lines around.
This commit is contained in:
Michael Natterer
2011-03-26 22:14:07 +01:00
parent 74f276fe4f
commit f632c4a8aa
2 changed files with 16 additions and 47 deletions
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62
app/tools/gimptransformtool.c
View File

@ -228,7 +228,6 @@ gimp_transform_tool_init (GimpTransformTool *tr_tool)
tr_tool->ngx = 0;
tr_tool->ngy = 0;
tr_tool->grid_coords = NULL;
tr_tool->tgrid_coords = NULL;
tr_tool->type = GIMP_TRANSFORM_TYPE_LAYER;
tr_tool->direction = GIMP_TRANSFORM_FORWARD;
@ -273,12 +272,6 @@ gimp_transform_tool_finalize (GObject *object)
tr_tool->grid_coords = NULL;
}
if (tr_tool->tgrid_coords)
{
g_free (tr_tool->tgrid_coords);
tr_tool->tgrid_coords = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@ -874,22 +867,27 @@ gimp_transform_tool_draw (GimpDrawTool *draw_tool)
(tr_tool->tx1 - tr_tool->tx2) * (tr_tool->ty3 - tr_tool->ty2));
/* draw the grid */
if (tr_tool->grid_coords &&
tr_tool->tgrid_coords &&
z1 * z2 > 0 &&
if (tr_tool->grid_coords &&
z1 * z2 > 0 &&
z3 * z4 > 0)
{
gint gci, i, k;
k = tr_tool->ngx + tr_tool->ngy;
gint k = tr_tool->ngx + tr_tool->ngy;
gint i, gci;
for (i = 0, gci = 0; i < k; i++, gci += 4)
{
gimp_draw_tool_add_line (draw_tool,
tr_tool->tgrid_coords[gci],
tr_tool->tgrid_coords[gci + 1],
tr_tool->tgrid_coords[gci + 2],
tr_tool->tgrid_coords[gci + 3]);
gdouble x1, y1, x2, y2;
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->grid_coords[gci],
tr_tool->grid_coords[gci + 1],
&x1, &y1);
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->grid_coords[gci + 2],
tr_tool->grid_coords[gci + 3],
&x2, &y2);
gimp_draw_tool_add_line (draw_tool, x1, y1, x2, y2);
}
}
@ -1381,25 +1379,6 @@ gimp_transform_tool_transform_bounding_box (GimpTransformTool *tr_tool)
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->cx, tr_tool->cy,
&tr_tool->tcx, &tr_tool->tcy);
if (tr_tool->grid_coords && tr_tool->tgrid_coords)
{
gint i, k;
gint gci;
gci = 0;
k = (tr_tool->ngx + tr_tool->ngy) * 2;
for (i = 0; i < k; i++)
{
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->grid_coords[gci],
tr_tool->grid_coords[gci + 1],
&tr_tool->tgrid_coords[gci],
&tr_tool->tgrid_coords[gci + 1]);
gci += 2;
}
}
}
void
@ -1577,12 +1556,6 @@ gimp_transform_tool_grid_recalc (GimpTransformTool *tr_tool)
tr_tool->grid_coords = NULL;
}
if (tr_tool->tgrid_coords != NULL)
{
g_free (tr_tool->tgrid_coords);
tr_tool->tgrid_coords = NULL;
}
if (options->preview_type != GIMP_TRANSFORM_PREVIEW_TYPE_GRID &&
options->preview_type != GIMP_TRANSFORM_PREVIEW_TYPE_IMAGE_GRID)
return;
@ -1626,9 +1599,6 @@ gimp_transform_tool_grid_recalc (GimpTransformTool *tr_tool)
tr_tool->grid_coords = coords =
g_new (gdouble, (tr_tool->ngx + tr_tool->ngy) * 4);
tr_tool->tgrid_coords =
g_new (gdouble, (tr_tool->ngx + tr_tool->ngy) * 4);
gci = 0;
for (i = 1; i <= tr_tool->ngx; i++)

1
app/tools/gimptransformtool.h
View File

@ -84,7 +84,6 @@ struct _GimpTransformTool
* endpoints (a total of (ngx+ngy)*2
* coordinate pairs)
*/
gdouble *tgrid_coords; /* transformed grid_coords */
GimpTransformType type;
GimpTransformDirection direction;