mirror of https://github.com/GNOME/gimp.git
317 lines
7.9 KiB
C
317 lines
7.9 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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* 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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#include "config.h"
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "core/core-types.h"
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#include "core/gimp.h"
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#include "core/gimpimage.h"
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#include "colormaps.h"
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#include "gdisplay_ops.h"
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#include "gimprc.h"
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#include "libgimp/gimpintl.h"
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static void gdisplay_close_warning_callback (GtkWidget *widget,
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gboolean close,
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gpointer data);
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static void gdisplay_close_warning_dialog (const gchar *image_name,
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GDisplay *gdisp);
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/*
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* This file is for operations on the gdisplay object
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*/
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gulong
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gdisplay_white_pixel (GDisplay *gdisp)
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{
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return g_white_pixel;
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}
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gulong
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gdisplay_gray_pixel (GDisplay *gdisp)
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{
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return g_gray_pixel;
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}
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gulong
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gdisplay_black_pixel (GDisplay *gdisp)
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{
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return g_black_pixel;
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}
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gulong
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gdisplay_color_pixel (GDisplay *gdisp)
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{
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return g_color_pixel;
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}
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void
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gdisplay_xserver_resolution (gdouble *xres,
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gdouble *yres)
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{
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gint width, height;
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gint widthMM, heightMM;
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width = gdk_screen_width ();
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height = gdk_screen_height ();
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widthMM = gdk_screen_width_mm ();
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heightMM = gdk_screen_height_mm ();
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/*
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* From xdpyinfo.c:
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*
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* there are 2.54 centimeters to an inch; so there are 25.4 millimeters.
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*
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* dpi = N pixels / (M millimeters / (25.4 millimeters / 1 inch))
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* = N pixels / (M inch / 25.4)
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* = N * 25.4 pixels / M inch
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*/
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*xres = (width * 25.4) / ((gdouble) widthMM);
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*yres = (height * 25.4) / ((gdouble) heightMM);
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}
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void
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gdisplay_new_view (GDisplay *gdisp)
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{
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GDisplay *new_gdisp;
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/* make sure the image has been fully loaded... */
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if (gdisp->gimage)
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{
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new_gdisp = gdisplay_new (gdisp->gimage, gdisp->scale);
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}
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}
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void
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gdisplay_close_window (GDisplay *gdisp,
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gboolean kill_it)
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{
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/* FIXME: gimp_busy HACK not really appropriate here because we only
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* want to prevent the busy image and display to be closed. --Mitch
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*/
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if (gdisp->gimage->gimp->busy)
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return;
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/* If the image has been modified, give the user a chance to save
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* it before nuking it--this only applies if its the last view
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* to an image canvas. (a gimage with disp_count = 1)
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*/
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if (! kill_it &&
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(gdisp->gimage->disp_count == 1) &&
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gdisp->gimage->dirty &&
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gimprc.confirm_on_close)
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{
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gdisplay_close_warning_dialog
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(g_basename (gimp_image_filename (gdisp->gimage)), gdisp);
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}
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else
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{
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gtk_widget_destroy (gdisp->shell);
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}
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}
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void
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gdisplay_shrink_wrap (GDisplay *gdisp)
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{
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/*
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* I'm pretty sure this assumes that the current size is < display size
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* Is this a valid assumption?
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*/
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GtkAllocation allocation;
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gint disp_width, disp_height;
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gint width, height;
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gint shell_x, shell_y;
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gint shell_width, shell_height;
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gint max_auto_width, max_auto_height;
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gint border_x, border_y;
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gint s_width, s_height;
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gboolean resize = FALSE;
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s_width = gdk_screen_width ();
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s_height = gdk_screen_height ();
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width = SCALEX (gdisp, gdisp->gimage->width);
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height = SCALEY (gdisp, gdisp->gimage->height);
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disp_width = gdisp->disp_width;
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disp_height = gdisp->disp_height;
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shell_width = gdisp->shell->allocation.width;
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shell_height = gdisp->shell->allocation.height;
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border_x = shell_width - disp_width;
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border_y = shell_height - disp_height;
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max_auto_width = (s_width - border_x) * 0.75;
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max_auto_height = (s_height - border_y) * 0.75;
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allocation.x = 0;
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allocation.y = 0;
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/* If one of the display dimensions has changed and one of the
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* dimensions fits inside the screen
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*/
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if (((width + border_x) < s_width || (height + border_y) < s_height) &&
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(width != disp_width || height != disp_height))
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{
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width = ((width + border_x) < s_width) ? width : max_auto_width;
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height = ((height + border_y) < s_height) ? height : max_auto_height;
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resize = TRUE;
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}
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/* If the projected dimension is greater than current, but less than
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* 3/4 of the screen size, expand automagically
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*/
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else if ((width > disp_width || height > disp_height) &&
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(disp_width < max_auto_width || disp_height < max_auto_height))
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{
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width = MIN (max_auto_width, width);
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height = MIN (max_auto_height, height);
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resize = TRUE;
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}
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if (resize)
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{
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if (width < gdisp->statusarea->requisition.width)
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{
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width = gdisp->statusarea->requisition.width;
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}
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#undef RESIZE_DEBUG
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#ifdef RESIZE_DEBUG
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g_print ("1w:%d/%d d:%d/%d s:%d/%d b:%d/%d\n",
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width, height,
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disp_width, disp_height,
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shell_width, shell_height,
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border_x, border_y);
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#endif /* RESIZE_DEBUG */
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gdisp->disp_width = width;
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gdisp->disp_height = height;
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allocation.width = width + border_x;
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allocation.height = height + border_y;
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/* don't call gdisplay_canvas_events() on any of the following
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* changes because our caller has to do a full display update anyway
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*/
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gtk_signal_handler_block_by_data (GTK_OBJECT (gdisp->canvas), gdisp);
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gtk_widget_size_allocate (gdisp->shell, &allocation);
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gdk_window_resize (gdisp->shell->window,
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allocation.width,
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allocation.height);
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/* let Gtk/X/WM position the window */
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while (gtk_events_pending ())
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gtk_main_iteration ();
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gdk_window_get_origin (gdisp->shell->window, &shell_x, &shell_y);
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/* if the window is offscreen, center it... */
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if (shell_x > s_width || shell_y > s_height ||
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(shell_x + width + border_x) < 0 || (shell_y + height + border_y) < 0)
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{
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shell_x = (s_width - width - border_x) >> 1;
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shell_y = (s_height - height - border_y) >> 1;
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gdk_window_move (gdisp->shell->window, shell_x, shell_y);
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}
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gtk_signal_handler_unblock_by_data (GTK_OBJECT (gdisp->canvas), gdisp);
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}
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/* If the width or height of the display has changed, recalculate
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* the display offsets...
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*/
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if (disp_width != gdisp->disp_width ||
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disp_height != gdisp->disp_height)
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{
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gdisp->offset_x += (disp_width - gdisp->disp_width) / 2;
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gdisp->offset_y += (disp_height - gdisp->disp_height) / 2;
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}
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}
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/********************************************************
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* Routines to query before closing a dirty image *
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********************************************************/
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static void
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gdisplay_close_warning_callback (GtkWidget *widget,
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gboolean close,
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gpointer data)
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{
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GDisplay *gdisp;
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gdisp = (GDisplay *) data;
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gdisp->warning_dialog = NULL;
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if (close)
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gtk_widget_destroy (gdisp->shell);
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}
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static void
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gdisplay_close_warning_dialog (const gchar *image_name,
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GDisplay *gdisp)
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{
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GtkWidget *mbox;
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gchar *warning_buf;
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if (gdisp->warning_dialog != NULL)
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{
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gdk_window_raise (gdisp->warning_dialog->window);
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return;
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}
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warning_buf =
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g_strdup_printf (_("Changes were made to %s.\nClose anyway?"), image_name);
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gdisp->warning_dialog = mbox =
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gimp_query_boolean_box (image_name,
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gimp_standard_help_func,
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"dialogs/really_close.html",
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FALSE,
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warning_buf,
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GTK_STOCK_CLOSE, GTK_STOCK_CANCEL,
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NULL, NULL,
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gdisplay_close_warning_callback,
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gdisp);
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g_free (warning_buf);
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gtk_widget_show (mbox);
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}
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