mirror of https://github.com/GNOME/gimp.git
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* Gradient editor module copyight (C) 1996-1997 Federico Mena Quintero
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* federico@nuclecu.unam.mx
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GRADIENT_EDITOR_H__
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#define __GRADIENT_EDITOR_H__
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#define GRAD_NUM_COLORS 10
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typedef enum
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{
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GRAD_DRAG_NONE = 0,
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GRAD_DRAG_LEFT,
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GRAD_DRAG_MIDDLE,
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GRAD_DRAG_ALL
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} GradientEditorDragMode;
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typedef enum
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{
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GRAD_UPDATE_GRADIENT = 1 << 0,
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GRAD_UPDATE_PREVIEW = 1 << 1,
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GRAD_UPDATE_CONTROL = 1 << 2,
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GRAD_RESET_CONTROL = 1 << 3
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} GradientEditorUpdateMask;
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struct _GradientEditor
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{
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GtkWidget *shell;
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GtkWidget *name;
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GtkWidget *hint_label;
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GtkWidget *scrollbar;
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GtkWidget *preview;
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GtkWidget *control;
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GimpContext *context;
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/* Zoom and scrollbar */
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guint zoom_factor;
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GtkObject *scroll_data;
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/* Instant update */
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gboolean instant_update;
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/* Gradient preview */
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guchar *preview_rows[2]; /* For caching redraw info */
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gint preview_last_x;
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gboolean preview_button_down;
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/* Gradient control */
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GdkPixmap *control_pixmap;
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GimpGradientSegment *control_drag_segment; /* Segment which is being dragged */
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GimpGradientSegment *control_sel_l; /* Left segment of selection */
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GimpGradientSegment *control_sel_r; /* Right segment of selection */
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GradientEditorDragMode control_drag_mode; /* What is being dragged? */
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guint32 control_click_time; /* Time when mouse was pressed */
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gboolean control_compress; /* Compressing/expanding handles */
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gint control_last_x; /* Last mouse position when dragging */
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gdouble control_last_gx; /* Last position (wrt gradient) when dragging */
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gdouble control_orig_pos; /* Original click position when dragging */
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/* Split uniformly dialog */
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gint split_parts;
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/* Replicate dialog */
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gint replicate_times;
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/* Saved colors */
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GimpRGB saved_colors[GRAD_NUM_COLORS];
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/* Color dialogs */
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GimpGradientSegment *left_saved_segments;
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gboolean left_saved_dirty;
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GimpGradientSegment *right_saved_segments;
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gboolean right_saved_dirty;
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};
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GradientEditor * gradient_editor_new (Gimp *gimp);
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void gradient_editor_set_gradient (GradientEditor *gradient_editor,
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GimpGradient *gradient);
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void gradient_editor_free (GradientEditor *gradient_editor);
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void gradient_editor_update (GradientEditor *gradient_editor,
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GradientEditorUpdateMask flags);
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#endif /* __GRADIENT_EDITOR_H__ */
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