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Make transform matrix selectable

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In our use case it is necessary to save the transform matrix, and the
easiest solution is to make the label selectable. If we print the
whole matrix into a single label, formatted with tabs and linefeeds,
then the whole matrix can be copied with a single operation.
This commit is contained in:
Andras Timar 2023-06-17 23:38:23 +02:00 committed by Jehan
parent 59cb3e36e1
commit da0ea189fc
2 changed files with 16 additions and 40 deletions
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53
app/tools/gimpgenerictransformtool.c
View file

@ -93,10 +93,8 @@ gimp_generic_transform_tool_dialog (GimpTransformGridTool *tg_tool)
GimpGenericTransformTool *generic = GIMP_GENERIC_TRANSFORM_TOOL (tg_tool);
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *grid;
GtkWidget *label;
GtkSizeGroup *size_group;
gint x, y;
frame = gimp_frame_new (_("Transform Matrix"));
gtk_box_pack_start (GTK_BOX (gimp_tool_gui_get_vbox (tg_tool->gui)), frame,
@ -109,27 +107,12 @@ gimp_generic_transform_tool_dialog (GimpTransformGridTool *tg_tool)
size_group = gtk_size_group_new (GTK_SIZE_GROUP_BOTH);
grid = generic->matrix_grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 2);
gtk_grid_set_column_spacing (GTK_GRID (grid), 2);
gtk_box_pack_start (GTK_BOX (vbox), grid, TRUE, TRUE, 0);
gtk_size_group_add_widget (size_group, grid);
gtk_widget_show (grid);
for (y = 0; y < 3; y++)
{
for (x = 0; x < 3; x++)
{
label = generic->matrix_labels[y][x] = gtk_label_new (" ");
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_label_set_width_chars (GTK_LABEL (label), 8);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_SCALE, PANGO_SCALE_SMALL,
-1);
gtk_grid_attach (GTK_GRID (grid), label, x, y, 1, 1);
gtk_widget_show (label);
}
}
label = generic->matrix_label = gtk_label_new (" ");
gtk_size_group_add_widget (size_group, label);
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
gimp_label_set_attributes (GTK_LABEL (label), PANGO_ATTR_SCALE, PANGO_SCALE_SMALL, -1);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_widget_show (label);
label = generic->invalid_label = gtk_label_new (_("Invalid transform"));
gimp_label_set_attributes (GTK_LABEL (label),
@ -153,27 +136,21 @@ gimp_generic_transform_tool_dialog_update (GimpTransformGridTool *tg_tool)
if (transform_valid)
{
gint x, y;
gtk_widget_show (generic->matrix_grid);
gchar buf[256];
gtk_widget_show (generic->matrix_label);
gtk_widget_hide (generic->invalid_label);
for (y = 0; y < 3; y++)
{
for (x = 0; x < 3; x++)
{
gchar buf[32];
g_snprintf (buf, sizeof (buf), "%.4f", transform.coeff[y][x]);
gtk_label_set_text (GTK_LABEL (generic->matrix_labels[y][x]), buf);
}
}
g_snprintf (buf, sizeof (buf), "<tt>% 11.4f\t% 11.4f\t% 11.4f\n% 11.4f\t% 11.4f"
"\t% 11.4f\n% 11.4f\t% 11.4f\t% 11.4f</tt>",
transform.coeff[0][0], transform.coeff[0][1], transform.coeff[0][2],
transform.coeff[1][0], transform.coeff[1][1], transform.coeff[1][2],
transform.coeff[2][0], transform.coeff[2][1], transform.coeff[2][2]);
gtk_label_set_markup (GTK_LABEL (generic->matrix_label), buf);
}
else
{
gtk_widget_show (generic->invalid_label);
gtk_widget_hide (generic->matrix_grid);
gtk_widget_hide (generic->matrix_label);
}
}

3
app/tools/gimpgenerictransformtool.h
View file

@ -39,8 +39,7 @@ struct _GimpGenericTransformTool
GimpVector2 input_points[4];
GimpVector2 output_points[4];
GtkWidget *matrix_grid;
GtkWidget *matrix_labels[3][3];
GtkWidget *matrix_label;
GtkWidget *invalid_label;
};