/* 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 __GDISPLAY_H__ #define __GDISPLAY_H__ typedef enum { SelectionOff, SelectionLayerOff, SelectionOn, SelectionPause, SelectionResume } SelectionControl; /* * Global variables * */ /* some useful macros */ /* unpacking the user scale level (char) */ #define SCALESRC(g) (g->scale & 0x00ff) #define SCALEDEST(g) (g->scale >> 8) /* finding the effective screen resolution (double) */ #define SCREEN_XRES(g) (g->dot_for_dot? g->gimage->xresolution : monitor_xres) #define SCREEN_YRES(g) (g->dot_for_dot? g->gimage->yresolution : monitor_yres) /* calculate scale factors (double) */ #define SCALEFACTOR_X(g) ((SCALEDEST(g) * SCREEN_XRES(g)) / \ (SCALESRC(g) * g->gimage->xresolution)) #define SCALEFACTOR_Y(g) ((SCALEDEST(g) * SCREEN_YRES(g)) / \ (SCALESRC(g) * g->gimage->yresolution)) /* scale values */ #define SCALEX(g,x) ((int)(x * SCALEFACTOR_X(g))) #define SCALEY(g,y) ((int)(y * SCALEFACTOR_Y(g))) /* unscale values */ #define UNSCALEX(g,x) ((int)(x / SCALEFACTOR_X(g))) #define UNSCALEY(g,y) ((int)(y / SCALEFACTOR_Y(g))) /* (and float-returning versions) */ #define FUNSCALEX(g,x) ((x / SCALEFACTOR_X(g))) #define FUNSCALEY(g,y) ((y / SCALEFACTOR_Y(g))) #define LOWPASS(x) ((x>0) ? x : 0) /* #define HIGHPASS(x,y) ((x>y) ? y : x) */ /* unused - == MIN */ /* maximal width of the string holding the cursor-coordinates for the status line */ #define CURSOR_STR_LENGTH 256 /* maximal length of the format string for the cursor-coordinates */ #define CURSOR_FORMAT_LENGTH 32 typedef struct _IdleRenderStruct { gint width; gint height; gint x; gint y; gint basex; gint basey; guint idleid; /*guint handlerid;*/ gboolean active; GSList *update_areas; /* flushed update areas */ } IdleRenderStruct; struct _GDisplay { gint ID; /* unique identifier for this gdisplay */ GtkWidget *shell; /* shell widget for this gdisplay */ GtkWidget *canvas; /* canvas widget for this gdisplay */ GtkWidget *hsb, *vsb; /* widgets for scroll bars */ GtkWidget *qmaskoff, *qmaskon; /* widgets for qmask buttons */ GtkWidget *hrule, *vrule; /* widgets for rulers */ GtkWidget *origin; /* widgets for rulers */ GtkWidget *popup; /* widget for popup menu */ GtkWidget *statusarea; /* hbox holding the statusbar and stuff */ GtkWidget *statusbar; /* widget for statusbar */ GtkWidget *progressbar; /* widget for progressbar */ GtkWidget *cursor_label; /* widget for cursor position */ gchar cursor_format_str [CURSOR_FORMAT_LENGTH]; /* we need a variable format * string because different * units have different number * of decimals */ GtkWidget *cancelbutton; /* widget for cancel button */ guint progressid; /* id of statusbar message for progress */ InfoDialog *window_info_dialog; /* dialog box for image information */ InfoDialog *window_nav_dialog; /* dialog box for image navigation */ GtkWidget *nav_popup; /* widget for the popup navigation window */ gint color_type; /* is this an RGB or GRAY colormap */ GtkAdjustment *hsbdata; /* horizontal data information */ GtkAdjustment *vsbdata; /* vertical data information */ GimpImage *gimage; /* pointer to the associated gimage struct */ gint instance; /* the instance # of this gdisplay as */ /* taken from the gimage at creation */ gint depth; /* depth of our drawables */ gint disp_width; /* width of drawing area in the window */ gint disp_height; /* height of drawing area in the window */ gint disp_xoffset; gint disp_yoffset; gint offset_x; /* offset of display image into raw image */ gint offset_y; gint scale; /* scale factor from original raw image */ gboolean dot_for_dot; /* is monitor resolution being ignored? */ gboolean draw_guides; /* should the guides be drawn? */ gboolean snap_to_guides; /* should the guides be snapped to? */ Selection *select; /* Selection object */ GdkGC *scroll_gc; /* GC for scrolling */ GSList *update_areas; /* Update areas list */ GSList *display_areas; /* Display areas list */ GdkCursorType current_cursor; /* Currently installed cursor */ ToolType cursor_tool; /* Cursor for which tool? */ CursorModifier cursor_modifier; /* Cursor modifier (plus, minus, ...) */ gboolean toggle_cursor; /* Cursor toggled? */ GdkCursorType override_cursor; /* Overriding cursor (ie. hourglass) */ gboolean using_override_cursor; /* is the cursor overridden? (ie. hourglass)*/ gboolean draw_cursor; /* should we draw software cursor ? */ gint cursor_x; /* software cursor X value */ gint cursor_y; /* software cursor Y value */ gboolean proximity; /* is a device in proximity of gdisplay ? */ gboolean have_cursor; /* is cursor currently drawn ? */ IdleRenderStruct idle_render; /* state of this gdisplay's render thread */ #ifdef DISPLAY_FILTERS GList *cd_list; /* color display conversion stuff */ GtkWidget *cd_ui; /* color display filter dialog */ #endif /* DISPLAY_FILTERS */ GtkWidget *warning_dialog; /* "Changes were made to %s. Close anyway?" */ }; /* member function declarations */ GDisplay * gdisplay_new (GimpImage *, guint); void gdisplay_reconnect (GDisplay *, GimpImage *); void gdisplay_remove_and_delete (GDisplay *); gint gdisplay_mask_value (GDisplay *, gint, gint); gint gdisplay_mask_bounds (GDisplay *, gint *, gint *, gint *, gint *); void gdisplay_transform_coords (GDisplay *, gint, gint, gint *, gint *, gint); void gdisplay_untransform_coords (GDisplay *, gint, gint, gint *, gint *, gboolean, gboolean); void gdisplay_transform_coords_f (GDisplay *, gdouble, gdouble, gdouble *, gdouble *, gboolean); void gdisplay_untransform_coords_f (GDisplay *, gdouble, gdouble, gdouble *, gdouble *, gboolean); void gdisplay_real_install_tool_cursor (GDisplay *gdisp, GdkCursorType cursor_type, ToolType tool_type, CursorModifier modifier, gboolean toggle_cursor, gboolean always_install); void gdisplay_install_tool_cursor (GDisplay *gdisp, GdkCursorType cursor_type, ToolType tool_type, CursorModifier modifier, gboolean toggle_cursor); void gdisplay_remove_tool_cursor (GDisplay *gdisp); void gdisplay_install_override_cursor (GDisplay *gdisp, GdkCursorType cursor_type); void gdisplay_remove_override_cursor (GDisplay *gdisp); void gdisplay_set_menu_sensitivity (GDisplay *); void gdisplay_expose_area (GDisplay *, gint, gint, gint, gint); void gdisplay_expose_guide (GDisplay *, Guide *); void gdisplay_expose_full (GDisplay *); void gdisplay_flush (GDisplay *); void gdisplay_flush_now (GDisplay *); void gdisplay_draw_guides (GDisplay *); void gdisplay_draw_guide (GDisplay *, Guide *, gboolean); Guide* gdisplay_find_guide (GDisplay *, gdouble, double); gboolean gdisplay_snap_point (GDisplay *, gdouble, gdouble, gdouble *, gdouble *); void gdisplay_snap_rectangle (GDisplay *, gdouble, gdouble, gdouble, gdouble, gdouble *, gdouble *); void gdisplay_update_cursor (GDisplay *, gint, gint); void gdisplay_set_dot_for_dot (GDisplay *, gboolean); void gdisplay_resize_cursor_label (GDisplay *); void gdisplay_update_title (GDisplay *); void gdisplay_flush_displays_only (GDisplay *gdisp); /* no rerender! */ GDisplay * gdisplay_active (void); GDisplay * gdisplay_get_by_ID (gint ID); /* function declarations */ GDisplay * gdisplays_check_valid (GDisplay *, GimpImage *); void gdisplays_reconnect (GimpImage *old, GimpImage *new); void gdisplays_update_title (GimpImage *); void gdisplays_resize_cursor_label (GimpImage *); void gdisplays_setup_scale (GimpImage *); void gdisplays_update_area (GimpImage *, gint, gint, gint, gint); void gdisplays_expose_guides (GimpImage *); void gdisplays_expose_guide (GimpImage *, Guide *); void gdisplays_update_full (GimpImage *); void gdisplays_shrink_wrap (GimpImage *); void gdisplays_expose_full (void); void gdisplays_selection_visibility (GimpImage *, SelectionControl); gboolean gdisplays_dirty (void); void gdisplays_delete (void); void gdisplays_flush (void); void gdisplays_flush_now (void); void gdisplays_finish_draw (void); void gdisplays_nav_preview_resized (void); void gdisplays_foreach (GFunc func, gpointer user_data); #endif /* __GDISPLAY_H__ */