/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * e-canvas-utils.c * Copyright 2000, 2001, Ximian, Inc. * * Authors: * Chris Lahey * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License, version 2, as published by the Free Software Foundation. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #include "e-canvas-utils.h" void e_canvas_item_move_absolute (GnomeCanvasItem *item, double dx, double dy) { double translate[6]; g_return_if_fail (item != NULL); g_return_if_fail (GNOME_IS_CANVAS_ITEM (item)); art_affine_translate (translate, dx, dy); gnome_canvas_item_affine_absolute (item, translate); } static double compute_offset(int top, int bottom, int page_top, int page_bottom) { int size = bottom - top; int offset = 0; if (top <= page_top && bottom >= page_bottom) return 0; if (bottom > page_bottom) offset = (bottom - page_bottom); if (top < page_top + offset) offset = (top - page_top); if (top <= page_top + offset && bottom >= page_bottom + offset) return offset; if (top < page_top + size * 3 / 2 + offset) offset = top - (page_top + size * 3 / 2); if (bottom > page_bottom - size * 3 / 2 + offset) offset = bottom - (page_bottom - size * 3 / 2); if (top < page_top + size * 3 / 2 + offset) offset = top - ((page_top + page_bottom - (bottom - top)) / 2); return offset; } static void e_canvas_show_area (GnomeCanvas *canvas, double x1, double y1, double x2, double y2) { GtkAdjustment *h, *v; int dx = 0, dy = 0; g_return_if_fail (canvas != NULL); g_return_if_fail (GNOME_IS_CANVAS (canvas)); h = gtk_layout_get_hadjustment(GTK_LAYOUT(canvas)); dx = compute_offset(x1, x2, h->value, h->value + h->page_size); if (dx) gtk_adjustment_set_value(h, CLAMP(h->value + dx, h->lower, h->upper - h->page_size)); v = gtk_layout_get_vadjustment(GTK_LAYOUT(canvas)); dy = compute_offset(y1, y2, v->value, v->value + v->page_size); if (dy) gtk_adjustment_set_value(v, CLAMP(v->value + dy, v->lower, v->upper - v->page_size)); } void e_canvas_item_show_area (GnomeCanvasItem *item, double x1, double y1, double x2, double y2) { g_return_if_fail (item != NULL); g_return_if_fail (GNOME_IS_CANVAS_ITEM (item)); gnome_canvas_item_i2w(item, &x1, &y1); gnome_canvas_item_i2w(item, &x2, &y2); e_canvas_show_area(item->canvas, x1, y1, x2, y2); } static gboolean e_canvas_area_shown (GnomeCanvas *canvas, double x1, double y1, double x2, double y2) { GtkAdjustment *h, *v; int dx = 0, dy = 0; g_return_val_if_fail (canvas != NULL, FALSE); g_return_val_if_fail (GNOME_IS_CANVAS (canvas), FALSE); h = gtk_layout_get_hadjustment(GTK_LAYOUT(canvas)); dx = compute_offset(x1, x2, h->value, h->value + h->page_size); if (CLAMP(h->value + dx, h->lower, h->upper - h->page_size) - h->value != 0) return FALSE; v = gtk_layout_get_vadjustment(GTK_LAYOUT(canvas)); dy = compute_offset(y1, y2, v->value, v->value + v->page_size); if (CLAMP(v->value + dy, v->lower, v->upper - v->page_size) - v->value != 0) return FALSE; return TRUE; } gboolean e_canvas_item_area_shown (GnomeCanvasItem *item, double x1, double y1, double x2, double y2) { g_return_val_if_fail (item != NULL, FALSE); g_return_val_if_fail (GNOME_IS_CANVAS_ITEM (item), FALSE); gnome_canvas_item_i2w(item, &x1, &y1); gnome_canvas_item_i2w(item, &x2, &y2); return e_canvas_area_shown(item->canvas, x1, y1, x2, y2); } typedef struct { double x1; double y1; double x2; double y2; GnomeCanvas *canvas; } DoubsAndCanvas; static gboolean show_area_timeout (gpointer data) { DoubsAndCanvas *dac = data; e_canvas_show_area(dac->canvas, dac->x1, dac->y1, dac->x2, dac->y2); g_object_unref (dac->canvas); g_free(dac); return FALSE; } void e_canvas_item_show_area_delayed (GnomeCanvasItem *item, double x1, double y1, double x2, double y2, gint delay) { DoubsAndCanvas *dac; g_return_if_fail (item != NULL); g_return_if_fail (GNOME_IS_CANVAS_ITEM (item)); gnome_canvas_item_i2w(item, &x1, &y1); gnome_canvas_item_i2w(item, &x2, &y2); dac = g_new(DoubsAndCanvas, 1); dac->x1 = x1; dac->y1 = y1; dac->x2 = x2; dac->y2 = y2; dac->canvas = item->canvas; g_object_ref (item->canvas); g_timeout_add(delay, show_area_timeout, dac); } tion value='mate-1.22'>mate-1.22 FreeBSD GNOME current development ports (https://github.com/freebsd/freebsd-ports-gnome)
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* SHA256ifyedwin2006-01-231-0/+1
* Fix build on -current.demon2004-07-061-4/+20
* Bump PORTREVISION due to patch-dsh-dsh.c.demon2004-07-031-1/+1
* Fix dsh crash.demon2004-07-021-0/+18
* Add size data, approved by maintainers.trevor2004-03-191-0/+1
* Define USE_PERL5_BUILD, not erroneous USE_PERL.trevor2003-11-201-1/+1
* Define USE_PERL to make Perl available for (mostly deprecated)trevor2003-11-201-0/+1
* Use the FIND and XARGS macros introduced in bsd.port.mk 1.391.trevor2003-11-131-1/+2
* Fix directory layout for mastersite ftp.chg.ruedwin2003-11-021-1/+1
* Include stdarg.h instead of varargs.h.demon2003-10-181-0/+11
* Fix crashes in some cases.demon2003-04-074-0/+180
* Clear moonlight beckons.ade2003-03-072-1/+1
* Add parallel to CATEGORIES.knu2002-11-241-1/+1
* Fix building on -current.demon2002-01-031-2/+3
* Add WITHOUT_X11 knob.demon2001-09-032-6/+17
* Upgrade to 2.0demon2001-08-16