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Diffstat (limited to 'app/tools/gimpgenerictransformtool.c')
| -rw-r--r-- | app/tools/gimpgenerictransformtool.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/app/tools/gimpgenerictransformtool.c b/app/tools/gimpgenerictransformtool.c new file mode 100644 index 0000000..9f20af6 --- /dev/null +++ b/app/tools/gimpgenerictransformtool.c @@ -0,0 +1,194 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpmath/gimpmath.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "tools-types.h" + +#include "core/gimp-transform-utils.h" + +#include "widgets/gimphelp-ids.h" +#include "widgets/gimpwidgets-utils.h" + +#include "display/gimpdisplay.h" +#include "display/gimptoolgui.h" + +#include "gimpgenerictransformtool.h" +#include "gimptoolcontrol.h" +#include "gimptransformgridoptions.h" + +#include "gimp-intl.h" + + +/* local function prototypes */ + +static gboolean gimp_generic_transform_tool_info_to_matrix (GimpTransformGridTool *tg_tool, + GimpMatrix3 *transform); +static void gimp_generic_transform_tool_dialog (GimpTransformGridTool *tg_tool); +static void gimp_generic_transform_tool_dialog_update (GimpTransformGridTool *tg_tool); +static void gimp_generic_transform_tool_prepare (GimpTransformGridTool *tg_tool); + + +G_DEFINE_TYPE (GimpGenericTransformTool, gimp_generic_transform_tool, + GIMP_TYPE_TRANSFORM_GRID_TOOL) + +#define parent_class gimp_generic_transform_tool_parent_class + + +static void +gimp_generic_transform_tool_class_init (GimpGenericTransformToolClass *klass) +{ + GimpTransformGridToolClass *tg_class = GIMP_TRANSFORM_GRID_TOOL_CLASS (klass); + + tg_class->info_to_matrix = gimp_generic_transform_tool_info_to_matrix; + tg_class->dialog = gimp_generic_transform_tool_dialog; + tg_class->dialog_update = gimp_generic_transform_tool_dialog_update; + tg_class->prepare = gimp_generic_transform_tool_prepare; +} + +static void +gimp_generic_transform_tool_init (GimpGenericTransformTool *unified_tool) +{ +} + +static gboolean +gimp_generic_transform_tool_info_to_matrix (GimpTransformGridTool *tg_tool, + GimpMatrix3 *transform) +{ + GimpGenericTransformTool *generic = GIMP_GENERIC_TRANSFORM_TOOL (tg_tool); + + if (GIMP_GENERIC_TRANSFORM_TOOL_GET_CLASS (generic)->info_to_points) + GIMP_GENERIC_TRANSFORM_TOOL_GET_CLASS (generic)->info_to_points (generic); + + gimp_matrix3_identity (transform); + + return gimp_transform_matrix_generic (transform, + generic->input_points, + generic->output_points); +} + +static void +gimp_generic_transform_tool_dialog (GimpTransformGridTool *tg_tool) +{ + GimpGenericTransformTool *generic = GIMP_GENERIC_TRANSFORM_TOOL (tg_tool); + GtkWidget *frame; + GtkWidget *vbox; + GtkWidget *table; + 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, + FALSE, FALSE, 0); + gtk_widget_show (frame); + + vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0); + gtk_container_add (GTK_CONTAINER (frame), vbox); + gtk_widget_show (vbox); + + size_group = gtk_size_group_new (GTK_SIZE_GROUP_BOTH); + + table = generic->matrix_table = gtk_table_new (3, 3, FALSE); + gtk_table_set_row_spacings (GTK_TABLE (table), 2); + gtk_table_set_col_spacings (GTK_TABLE (table), 2); + gtk_box_pack_start (GTK_BOX (vbox), table, TRUE, TRUE, 0); + gtk_size_group_add_widget (size_group, table); + gtk_widget_show (table); + + 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_table_attach (GTK_TABLE (table), label, + x, x + 1, y, y + 1, GTK_EXPAND, GTK_FILL, 0, 0); + gtk_widget_show (label); + } + } + + label = generic->invalid_label = gtk_label_new (_("Invalid transform")); + gimp_label_set_attributes (GTK_LABEL (label), + PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC, + -1); + gtk_size_group_add_widget (size_group, label); + gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0); + + g_object_unref (size_group); +} + +static void +gimp_generic_transform_tool_dialog_update (GimpTransformGridTool *tg_tool) +{ + GimpGenericTransformTool *generic = GIMP_GENERIC_TRANSFORM_TOOL (tg_tool); + GimpMatrix3 transform; + gboolean transform_valid; + + transform_valid = gimp_transform_grid_tool_info_to_matrix (tg_tool, + &transform); + + if (transform_valid) + { + gint x, y; + + gtk_widget_show (generic->matrix_table); + 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); + } + } + } + else + { + gtk_widget_show (generic->invalid_label); + gtk_widget_hide (generic->matrix_table); + } +} + +static void +gimp_generic_transform_tool_prepare (GimpTransformGridTool *tg_tool) +{ + GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tg_tool); + GimpGenericTransformTool *generic = GIMP_GENERIC_TRANSFORM_TOOL (tg_tool); + + generic->input_points[0] = (GimpVector2) {tr_tool->x1, tr_tool->y1}; + generic->input_points[1] = (GimpVector2) {tr_tool->x2, tr_tool->y1}; + generic->input_points[2] = (GimpVector2) {tr_tool->x1, tr_tool->y2}; + generic->input_points[3] = (GimpVector2) {tr_tool->x2, tr_tool->y2}; + + memcpy (generic->output_points, generic->input_points, + sizeof (generic->input_points)); +} |