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+/* 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/>.
+ */
+
+#ifndef __GIMP_DISPLAY_SHELL_H__
+#define __GIMP_DISPLAY_SHELL_H__
+
+
+/* Apply to a float the same rounding mode used in the renderer */
+#define PROJ_ROUND(coord) ((gint) RINT (coord))
+#define PROJ_ROUND64(coord) ((gint64) RINT (coord))
+
+/* scale values */
+#define SCALEX(s,x) PROJ_ROUND ((x) * (s)->scale_x)
+#define SCALEY(s,y) PROJ_ROUND ((y) * (s)->scale_y)
+
+/* unscale values */
+#define UNSCALEX(s,x) ((gint) ((x) / (s)->scale_x))
+#define UNSCALEY(s,y) ((gint) ((y) / (s)->scale_y))
+/* (and float-returning versions) */
+#define FUNSCALEX(s,x) ((x) / (s)->scale_x)
+#define FUNSCALEY(s,y) ((y) / (s)->scale_y)
+
+
+#define GIMP_TYPE_DISPLAY_SHELL (gimp_display_shell_get_type ())
+#define GIMP_DISPLAY_SHELL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_DISPLAY_SHELL, GimpDisplayShell))
+#define GIMP_DISPLAY_SHELL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_DISPLAY_SHELL, GimpDisplayShellClass))
+#define GIMP_IS_DISPLAY_SHELL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_DISPLAY_SHELL))
+#define GIMP_IS_DISPLAY_SHELL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_DISPLAY_SHELL))
+#define GIMP_DISPLAY_SHELL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DISPLAY_SHELL, GimpDisplayShellClass))
+
+
+typedef struct _GimpDisplayShellClass GimpDisplayShellClass;
+
+struct _GimpDisplayShell
+{
+ GtkEventBox parent_instance;
+
+ GimpDisplay *display;
+
+ GimpUIManager *popup_manager;
+ GdkScreen *initial_screen;
+ gint initial_monitor;
+
+ GimpDisplayOptions *options;
+ GimpDisplayOptions *fullscreen_options;
+ GimpDisplayOptions *no_image_options;
+
+ GimpUnit unit;
+
+ gint offset_x; /* offset of display image */
+ gint offset_y;
+
+ gdouble scale_x; /* horizontal scale factor */
+ gdouble scale_y; /* vertical scale factor */
+
+ gboolean flip_horizontally;
+ gboolean flip_vertically;
+ gdouble rotate_angle;
+ cairo_matrix_t *rotate_transform;
+ cairo_matrix_t *rotate_untransform;
+
+ gdouble monitor_xres;
+ gdouble monitor_yres;
+ gboolean dot_for_dot; /* ignore monitor resolution */
+
+ GimpZoomModel *zoom;
+
+ gdouble last_scale; /* scale used when reverting zoom */
+ guint last_scale_time; /* time when last_scale was set */
+ gint last_offset_x; /* offsets used when reverting zoom */
+ gint last_offset_y;
+
+ gdouble other_scale; /* scale factor entered in Zoom->Other*/
+
+ gint disp_width; /* width of drawing area */
+ gint disp_height; /* height of drawing area */
+
+ gboolean proximity; /* is a device in proximity */
+
+ gboolean show_image; /* whether to show the image */
+
+ gboolean show_all; /* show the entire image */
+
+ Selection *selection; /* Selection (marching ants) */
+
+ GList *children;
+
+ GtkWidget *canvas; /* GimpCanvas widget */
+
+ GtkAdjustment *hsbdata; /* adjustments */
+ GtkAdjustment *vsbdata;
+ GtkWidget *hsb; /* scroll bars */
+ GtkWidget *vsb;
+
+ GtkWidget *hrule; /* rulers */
+ GtkWidget *vrule;
+
+ GtkWidget *origin; /* NW: origin */
+ GtkWidget *quick_mask_button;/* SW: quick mask button */
+ GtkWidget *zoom_button; /* NE: zoom toggle button */
+ GtkWidget *nav_ebox; /* SE: navigation event box */
+
+ GtkWidget *statusbar; /* statusbar */
+
+ GimpCanvasItem *canvas_item; /* items drawn on the canvas */
+ GimpCanvasItem *unrotated_item; /* unrotated items for e.g. cursor */
+ GimpCanvasItem *passe_partout; /* item for the highlight */
+ GimpCanvasItem *preview_items; /* item for previews */
+ GimpCanvasItem *vectors; /* item proxy of vectors */
+ GimpCanvasItem *grid; /* item proxy of the grid */
+ GimpCanvasItem *guides; /* item proxies of guides */
+ GimpCanvasItem *sample_points; /* item proxies of sample points */
+ GimpCanvasItem *canvas_boundary; /* item for the cabvas boundary */
+ GimpCanvasItem *layer_boundary; /* item for the layer boundary */
+ GimpCanvasItem *tool_items; /* tools items, below the cursor */
+ GimpCanvasItem *cursor; /* item for the software cursor */
+
+ guint title_idle_id; /* title update idle ID */
+ gchar *title; /* current title */
+ gchar *status; /* current default statusbar content */
+
+ gint icon_size; /* size of the icon pixbuf */
+ gint icon_size_small; /* size of the icon's wilber pixbuf */
+ guint icon_idle_id; /* ID of the idle-function */
+ GdkPixbuf *icon; /* icon */
+
+ guint fill_idle_id; /* display_shell_fill() idle ID */
+
+ GimpHandedness cursor_handedness;/* Handedness for cursor display */
+ GimpCursorType current_cursor; /* Currently installed main cursor */
+ GimpToolCursorType tool_cursor; /* Current Tool cursor */
+ GimpCursorModifier cursor_modifier; /* Cursor modifier (plus, minus, ...) */
+
+ GimpCursorType override_cursor; /* Overriding cursor */
+ gboolean using_override_cursor;
+ gboolean draw_cursor; /* should we draw software cursor ? */
+
+ GtkWidget *close_dialog; /* close dialog */
+ GtkWidget *scale_dialog; /* scale (zoom) dialog */
+ GtkWidget *rotate_dialog; /* rotate dialog */
+ GtkWidget *nav_popup; /* navigation popup */
+
+ GimpColorConfig *color_config; /* color management settings */
+ gboolean color_config_set; /* settings changed from defaults */
+
+ GimpColorTransform *profile_transform;
+ GeglBuffer *profile_buffer; /* buffer for profile transform */
+ guchar *profile_data; /* profile_buffer's pixels */
+ gint profile_stride; /* profile_buffer's stride */
+
+ GimpColorDisplayStack *filter_stack; /* color display conversion stuff */
+ guint filter_idle_id;
+
+ GimpColorTransform *filter_transform;
+ const Babl *filter_format; /* filter_buffer's format */
+ GeglBuffer *filter_buffer; /* buffer for display filters */
+ guchar *filter_data; /* filter_buffer's pixels */
+ gint filter_stride; /* filter_buffer's stride */
+
+ GimpDisplayXfer *xfer; /* manages image buffer transfers */
+ cairo_surface_t *mask_surface; /* buffer for rendering the mask */
+ cairo_pattern_t *checkerboard; /* checkerboard pattern */
+
+ gint paused_count;
+
+ GimpTreeHandler *vectors_freeze_handler;
+ GimpTreeHandler *vectors_thaw_handler;
+ GimpTreeHandler *vectors_visible_handler;
+
+ gboolean zoom_on_resize;
+
+ gboolean size_allocate_from_configure_event;
+ gboolean size_allocate_center_image;
+
+ /* the state of gimp_display_shell_tool_events() */
+ gboolean pointer_grabbed;
+ guint32 pointer_grab_time;
+
+ gboolean keyboard_grabbed;
+ guint32 keyboard_grab_time;
+
+ gboolean inferior_ignore_mode;
+
+ /* Two states are possible when the shell is grabbed: it can be
+ * grabbed with space (or space+button1 which is the same state),
+ * then if space is released but button1 was still pressed, we wait
+ * for button1 to be released as well.
+ */
+ gboolean space_release_pending;
+ gboolean button1_release_pending;
+ const gchar *space_shaded_tool;
+
+ gboolean scrolling;
+ gint scroll_start_x;
+ gint scroll_start_y;
+ gint scroll_last_x;
+ gint scroll_last_y;
+ gboolean rotating;
+ gdouble rotate_drag_angle;
+ gboolean scaling;
+ gpointer scroll_info;
+ gboolean layer_picking;
+ GimpLayer *picked_layer;
+
+ GeglBuffer *mask;
+ gint mask_offset_x;
+ gint mask_offset_y;
+ GimpRGB mask_color;
+ gboolean mask_inverted;
+
+ GimpMotionBuffer *motion_buffer;
+
+ GQueue *zoom_focus_pointer_queue;
+
+ gboolean blink;
+ guint blink_timeout_id;
+};
+
+struct _GimpDisplayShellClass
+{
+ GtkEventBoxClass parent_class;
+
+ void (* scaled) (GimpDisplayShell *shell);
+ void (* scrolled) (GimpDisplayShell *shell);
+ void (* rotated) (GimpDisplayShell *shell);
+ void (* reconnect) (GimpDisplayShell *shell);
+};
+
+
+GType gimp_display_shell_get_type (void) G_GNUC_CONST;
+
+GtkWidget * gimp_display_shell_new (GimpDisplay *display,
+ GimpUnit unit,
+ gdouble scale,
+ GimpUIManager *popup_manager,
+ GdkScreen *screen,
+ gint monitor);
+
+void gimp_display_shell_add_overlay (GimpDisplayShell *shell,
+ GtkWidget *child,
+ gdouble image_x,
+ gdouble image_y,
+ GimpHandleAnchor anchor,
+ gint spacing_x,
+ gint spacing_y);
+void gimp_display_shell_move_overlay (GimpDisplayShell *shell,
+ GtkWidget *child,
+ gdouble image_x,
+ gdouble image_y,
+ GimpHandleAnchor anchor,
+ gint spacing_x,
+ gint spacing_y);
+
+GimpImageWindow * gimp_display_shell_get_window (GimpDisplayShell *shell);
+GimpStatusbar * gimp_display_shell_get_statusbar (GimpDisplayShell *shell);
+
+GimpColorConfig * gimp_display_shell_get_color_config
+ (GimpDisplayShell *shell);
+
+void gimp_display_shell_present (GimpDisplayShell *shell);
+
+void gimp_display_shell_reconnect (GimpDisplayShell *shell);
+
+void gimp_display_shell_empty (GimpDisplayShell *shell);
+void gimp_display_shell_fill (GimpDisplayShell *shell,
+ GimpImage *image,
+ GimpUnit unit,
+ gdouble scale);
+
+void gimp_display_shell_scaled (GimpDisplayShell *shell);
+void gimp_display_shell_scrolled (GimpDisplayShell *shell);
+void gimp_display_shell_rotated (GimpDisplayShell *shell);
+
+void gimp_display_shell_set_unit (GimpDisplayShell *shell,
+ GimpUnit unit);
+GimpUnit gimp_display_shell_get_unit (GimpDisplayShell *shell);
+
+gboolean gimp_display_shell_snap_coords (GimpDisplayShell *shell,
+ GimpCoords *coords,
+ gint snap_offset_x,
+ gint snap_offset_y,
+ gint snap_width,
+ gint snap_height);
+
+gboolean gimp_display_shell_mask_bounds (GimpDisplayShell *shell,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height);
+
+void gimp_display_shell_set_show_image
+ (GimpDisplayShell *shell,
+ gboolean show_image);
+
+void gimp_display_shell_set_show_all (GimpDisplayShell *shell,
+ gboolean show_all);
+
+GimpPickable * gimp_display_shell_get_pickable (GimpDisplayShell *shell);
+GimpPickable * gimp_display_shell_get_canvas_pickable
+ (GimpDisplayShell *shell);
+GeglRectangle gimp_display_shell_get_bounding_box
+ (GimpDisplayShell *shell);
+gboolean gimp_display_shell_get_infinite_canvas
+ (GimpDisplayShell *shell);
+
+void gimp_display_shell_update_priority_rect
+ (GimpDisplayShell *shell);
+
+void gimp_display_shell_flush (GimpDisplayShell *shell,
+ gboolean now);
+
+void gimp_display_shell_pause (GimpDisplayShell *shell);
+void gimp_display_shell_resume (GimpDisplayShell *shell);
+
+void gimp_display_shell_set_highlight (GimpDisplayShell *shell,
+ const GdkRectangle *highlight,
+ double opacity);
+void gimp_display_shell_set_mask (GimpDisplayShell *shell,
+ GeglBuffer *mask,
+ gint offset_x,
+ gint offset_y,
+ const GimpRGB *color,
+ gboolean inverted);
+
+
+#endif /* __GIMP_DISPLAY_SHELL_H__ */