161 lines
4.2 KiB
C++
161 lines
4.2 KiB
C++
/***************************************************************************
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gscrollview.cpp
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(c) 2004-2006 - Daniel Campos Fernández <dcamposf@gmail.com>
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Gtkmae "GTK+ made easy" classes
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Realizado para la Junta de Extremadura.
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Consejería de Educación Ciencia y Tecnología.
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Proyecto gnuLinEx
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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 1, or (at your option)
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any later version.
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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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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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***************************************************************************/
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#include "widgets.h"
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#include "widgets_private.h"
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#include "gscrollview.h"
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void gSV_scroll(GtkAdjustment *Adj,gScrollView *data)
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{
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if (data->onScroll) data->onScroll(data);
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}
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gScrollView::gScrollView(gContainer *parent) : gContainer(parent)
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{
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GtkAdjustment* Adj;
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g_typ=Type_gScrollView;
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_mw = _mh = 0;
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_scroll = gtk_scrolled_window_new(NULL,NULL);
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gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(_scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
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//gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(border), GTK_SHADOW_ETCHED_IN);
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//gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(border), widget);
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//gtk_container_add(GTK_CONTAINER(border), widget);
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viewport = gtk_viewport_new(gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(_scroll)),
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gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(_scroll)));
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gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
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gtk_container_add(GTK_CONTAINER(_scroll), viewport);
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border = _scroll;
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widget = gtk_layout_new(0,0);
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realize(false);
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setBorder(true);
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Adj=gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(_scroll));
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g_signal_connect(G_OBJECT(Adj),"value-changed",G_CALLBACK(gSV_scroll),this);
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Adj=gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(_scroll));
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g_signal_connect(G_OBJECT(Adj),"value-changed",G_CALLBACK(gSV_scroll),this);
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}
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bool gScrollView::hasBorder()
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{
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if (gtk_scrolled_window_get_shadow_type(GTK_SCROLLED_WINDOW(border))==GTK_SHADOW_NONE) return false;
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return true;
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}
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void gScrollView::setBorder(bool vl)
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{
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if (vl)
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gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(border),GTK_SHADOW_IN);
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else
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gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(border),GTK_SHADOW_NONE);
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}
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void gScrollView::updateSize()
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{
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int bucle;
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int minX=0,maxX=0,minY=0,maxY=0;
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gControl *ch;
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for (bucle=0;bucle<childCount();bucle++)
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{
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ch = child(bucle);
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if (!ch->isVisible()) continue;
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if (ch->left()<0)
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if (ch->left()<minX)
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minX=ch->left();
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if ( (ch->width()+ch->left())>maxX )
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maxX=ch->width()+ch->left();
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if (ch->top()<0)
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if (ch->top()<minY)
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minY=ch->top();
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if ( (ch->height()+ch->top())>maxY )
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maxY=ch->height()+ch->top();
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}
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_mw = maxX-minX;
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if (_mw < viewport->allocation.width)
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_mw = viewport->allocation.width;
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_mh = maxY-minY;
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if (_mh < viewport->allocation.height)
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_mh = viewport->allocation.height;
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gtk_widget_set_size_request(widget, _mw, _mh);
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}
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void gScrollView::performArrange()
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{
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gContainer::performArrange();
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updateSize();
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}
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void gScrollView::resize(int w, int h)
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{
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if (w == bufW && h == bufH)
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return;
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gContainer::resize(w, h);
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if (bufW == 0 || bufH == 0)
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return;
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//updateSize();
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//performArrange();
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//parent()->performArrange();
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}
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void gScrollView::ensureVisible(int x, int y, int w, int h)
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{
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if (!GTK_IS_SCROLLED_WINDOW(border))
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return;
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GtEnsureVisible arg;
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arg.clientWidth = clientWidth();
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arg.clientHeight = clientHeight();
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arg.scrollX = scrollX();
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arg.scrollY = scrollY();
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arg.scrollWidth = scrollWidth();
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arg.scrollHeight = scrollHeight();
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gt_ensure_visible(&arg, x, y, w, h);
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scroll(arg.scrollX, arg.scrollY);
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}
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