/* The GIMP -- an 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 2 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef __GRADIENT_HEADER_H__ #define __GRADIENT_HEADER_H__ #include #define GRAD_LIST_WIDTH 300 #define GRAD_LIST_HEIGHT 80 #define GRAD_SCROLLBAR_STEP_SIZE 0.05 #define GRAD_SCROLLBAR_PAGE_SIZE 0.75 #define GRAD_CLOSE_BUTTON_WIDTH 45 #define GRAD_PREVIEW_WIDTH 600 #define GRAD_PREVIEW_HEIGHT 64 #define GRAD_CONTROL_HEIGHT 10 #define GRAD_CHECK_SIZE 8 #define GRAD_CHECK_SIZE_SM 4 #define GRAD_CHECK_DARK (1.0 / 3.0) #define GRAD_CHECK_LIGHT (2.0 / 3.0) #define GRAD_COLOR_BOX_WIDTH 24 #define GRAD_COLOR_BOX_HEIGHT 16 #define GRAD_NUM_COLORS 10 #define GRAD_MOVE_TIME 150 /* ms between mouse click and detection of movement in gradient control */ #define GRAD_PREVIEW_EVENT_MASK (GDK_EXPOSURE_MASK | GDK_LEAVE_NOTIFY_MASK | \ GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | \ GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK) #define GRAD_CONTROL_EVENT_MASK (GDK_EXPOSURE_MASK | \ GDK_LEAVE_NOTIFY_MASK | \ GDK_POINTER_MOTION_MASK | \ GDK_POINTER_MOTION_HINT_MASK | \ GDK_BUTTON_PRESS_MASK | \ GDK_BUTTON_RELEASE_MASK | \ GDK_BUTTON1_MOTION_MASK) #define GRAD_UPDATE_PREVIEW 0x0001 #define GRAD_UPDATE_CONTROL 0x0002 #define GRAD_RESET_CONTROL 0X0004 /***** Types *****/ /* Gradient segment type */ typedef enum { GRAD_LINEAR = 0, GRAD_CURVED, GRAD_SINE, GRAD_SPHERE_INCREASING, GRAD_SPHERE_DECREASING } grad_type_t; typedef enum { GRAD_RGB = 0, /* normal RGB */ GRAD_HSV_CCW, /* counterclockwise hue */ GRAD_HSV_CW /* clockwise hue */ } grad_color_t; typedef struct _grad_segment_t { double left, middle, right; /* Left pos, midpoint, right pos */ double r0, g0, b0, a0; /* Left color */ double r1, g1, b1, a1; /* Right color */ grad_type_t type; /* Segment's blending function */ grad_color_t color; /* Segment's coloring type */ struct _grad_segment_t *prev, *next; /* For linked list of segments */ } grad_segment_t; /* Complete gradient type */ typedef struct _gradient_t { char *name; grad_segment_t *segments; grad_segment_t *last_visited; int dirty; char *filename; GdkPixmap *pixmap; } gradient_t; /* Gradient editor type */ typedef enum { GRAD_DRAG_NONE = 0, GRAD_DRAG_LEFT, GRAD_DRAG_MIDDLE, GRAD_DRAG_ALL } control_drag_mode_t; typedef struct { GtkWidget *shell; GdkGC *gc; GtkWidget *hint_label; GtkWidget *clist; GtkWidget *scrollbar; GtkWidget *preview; GtkWidget *control; /* Zoom and scrollbar */ unsigned int zoom_factor; GtkObject *scroll_data; /* Instant update */ int instant_update; /* Gradient preview */ guchar *preview_rows[2]; /* For caching redraw info */ gint preview_last_x; int preview_button_down; /* Gradient control */ GdkPixmap *control_pixmap; grad_segment_t *control_drag_segment; /* Segment which is being dragged */ grad_segment_t *control_sel_l; /* Left segment of selection */ grad_segment_t *control_sel_r; /* Right segment of selection */ control_drag_mode_t control_drag_mode; /* What is being dragged? */ guint32 control_click_time; /* Time when mouse was pressed */ int control_compress; /* Compressing/expanding handles */ gint control_last_x; /* Last mouse position when dragging */ double control_last_gx; /* Last position (wrt gradient) when dragging */ double control_orig_pos; /* Original click position when dragging */ GtkWidget *control_main_popup; /* Popup menu */ GtkWidget *control_blending_label; /* Blending function label */ GtkWidget *control_coloring_label; /* Coloring type label */ GtkWidget *control_splitm_label; /* Split at midpoint label */ GtkWidget *control_splitu_label; /* Split uniformly label */ GtkWidget *control_delete_menu_item; /* Delete menu item */ GtkWidget *control_delete_label; /* Delete label */ GtkWidget *control_recenter_label; /* Re-center label */ GtkWidget *control_redistribute_label; /* Re-distribute label */ GtkWidget *control_flip_label; /* Flip label */ GtkWidget *control_replicate_label; /* Replicate label */ GtkWidget *control_blend_colors_menu_item; /* Blend colors menu item */ GtkWidget *control_blend_opacity_menu_item; /* Blend opacity menu item */ GtkWidget *control_left_load_popup; /* Left endpoint load menu */ GtkWidget *control_left_save_popup; /* Left endpoint save menu */ GtkWidget *control_right_load_popup; /* Right endpoint load menu */ GtkWidget *control_right_save_popup; /* Right endpoint save menu */ GtkWidget *control_blending_popup; /* Blending function menu */ GtkWidget *control_coloring_popup; /* Coloring type menu */ GtkWidget *control_sel_ops_popup; /* Selection ops menu */ GtkAccelGroup *accel_group; /* Blending and coloring menus */ GtkWidget *control_blending_items[5 + 1]; /* Add 1 for the "Varies" item */ GtkWidget *control_coloring_items[3 + 1]; /* Split uniformly dialog */ int split_parts; /* Replicate dialog */ int replicate_times; /* Saved colors */ struct { double r, g, b, a; } saved_colors[GRAD_NUM_COLORS]; GtkWidget *left_load_color_boxes[GRAD_NUM_COLORS + 3]; GtkWidget *left_load_labels[GRAD_NUM_COLORS + 3]; GtkWidget *left_save_color_boxes[GRAD_NUM_COLORS]; GtkWidget *left_save_labels[GRAD_NUM_COLORS]; GtkWidget *right_load_color_boxes[GRAD_NUM_COLORS + 3]; GtkWidget *right_load_labels[GRAD_NUM_COLORS + 3]; GtkWidget *right_save_color_boxes[GRAD_NUM_COLORS]; GtkWidget *right_save_labels[GRAD_NUM_COLORS]; /* Color dialogs */ GtkWidget *left_color_preview; grad_segment_t *left_saved_segments; int left_saved_dirty; GtkWidget *right_color_preview; grad_segment_t *right_saved_segments; int right_saved_dirty; } gradient_editor_t; /* Selection dialog functions */ void sel_update_dialogs(gint row, gradient_t *grad); void grad_sel_free_all(); void grad_sel_refill_all(); void grad_sel_rename_all(gint n, gradient_t *grad); void grad_sel_new_all(gint n, gradient_t *grad); void grad_sel_copy_all(gint n, gradient_t *grad); void grad_sel_delete_all(gint n); void grad_create_gradient_editor_init(gint need_show); void ed_insert_in_gradients_listbox(GdkGC *, GtkWidget *,gradient_t *grad, int pos, int select); gint grad_set_grad_to_name(gchar *name); gint ed_set_list_of_gradients(GdkGC *, GtkWidget *,gradient_t *); /* Varibles used */ extern gradient_t *curr_gradient; /* The active gradient */ extern GSList *gradients_list; /* The list of gradients */ extern gradient_t *grad_default_gradient; extern gradient_editor_t *g_editor; /* The gradient editor */ extern int num_gradients; #define G_SAMPLE 40 typedef struct _GradSelect _GradSelect, *GradSelectP; struct _GradSelect { GtkWidget *shell; GtkWidget *frame; GtkWidget *preview; GtkWidget *clist; gchar *callback_name; gradient_t *grad; gint sample_size; GdkColor black; GdkGC *gc; }; GradSelectP gsel_new_selection(gchar * title, gchar * initial_gradient); void grad_select_free (GradSelectP gsp); extern GSList *grad_active_dialogs; /* List of active dialogs */ extern GradSelectP gradient_select_dialog; /* The main selection dialog */ #endif /* __GRADIENT_HEADER_H__ */