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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Gradient editor module copyight (C) 1996-1997 Federico Mena Quintero
* federico@nuclecu.unam.mx
*
* 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/>.
*/
#ifndef __GIMP_GRADIENT_EDITOR_H__
#define __GIMP_GRADIENT_EDITOR_H__
#include "gimpdataeditor.h"
#define GRAD_NUM_COLORS 10
typedef enum
{
GRAD_DRAG_NONE = 0,
GRAD_DRAG_LEFT,
GRAD_DRAG_MIDDLE,
GRAD_DRAG_ALL
} GradientEditorDragMode;
#define GIMP_TYPE_GRADIENT_EDITOR (gimp_gradient_editor_get_type ())
#define GIMP_GRADIENT_EDITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_GRADIENT_EDITOR, GimpGradientEditor))
#define GIMP_GRADIENT_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_GRADIENT_EDITOR, GimpGradientEditorClass))
#define GIMP_IS_GRADIENT_EDITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_GRADIENT_EDITOR))
#define GIMP_IS_GRADIENT_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_GRADIENT_EDITOR))
#define GIMP_GRADIENT_EDITOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_GRADIENT_EDITOR, GimpGradientEditorClass))
typedef struct _GimpGradientEditorClass GimpGradientEditorClass;
struct _GimpGradientEditor
{
GimpDataEditor parent_instance;
GtkWidget *current_color;
GtkWidget *hint_label1;
GtkWidget *hint_label2;
GtkWidget *hint_label3;
GtkWidget *hint_label4;
GtkWidget *scrollbar;
GtkWidget *control;
/* Zoom and scrollbar */
guint zoom_factor;
GtkAdjustment *scroll_data;
/* Gradient view */
gint view_last_x;
gboolean view_button_down;
/* Gradient control */
GimpGradientSegment *control_drag_segment; /* Segment which is being dragged */
GimpGradientSegment *control_sel_l; /* Left segment of selection */
GimpGradientSegment *control_sel_r; /* Right segment of selection */
GradientEditorDragMode control_drag_mode; /* What is being dragged? */
guint32 control_click_time; /* Time when mouse was pressed */
gboolean control_compress; /* Compressing/expanding handles */
gint control_last_x; /* Last mouse position when dragging */
gdouble control_last_gx; /* Last position (wrt gradient) when dragging */
gdouble control_orig_pos; /* Original click position when dragging */
GimpGradientBlendColorSpace blend_color_space;
/* Saved colors */
GimpRGB saved_colors[GRAD_NUM_COLORS];
/* Color dialog */
GtkWidget *color_dialog;
GimpGradientSegment *saved_segments;
gboolean saved_dirty;
};
struct _GimpGradientEditorClass
{
GimpDataEditorClass parent_class;
};
GType gimp_gradient_editor_get_type (void) G_GNUC_CONST;
GtkWidget * gimp_gradient_editor_new (GimpContext *context,
GimpMenuFactory *menu_factory);
void gimp_gradient_editor_get_selection (GimpGradientEditor *editor,
GimpGradient **gradient,
GimpGradientSegment **left,
GimpGradientSegment **right);
void gimp_gradient_editor_set_selection (GimpGradientEditor *editor,
GimpGradientSegment *left,
GimpGradientSegment *right);
void gimp_gradient_editor_edit_left_color (GimpGradientEditor *editor);
void gimp_gradient_editor_edit_right_color (GimpGradientEditor *editor);
void gimp_gradient_editor_zoom (GimpGradientEditor *editor,
GimpZoomType zoom_type);
#endif /* __GIMP_GRADIENT_EDITOR_H__ */
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