RetroShare/retroshare-gui/src/gui/mainpagestack.cpp

96 lines
3.1 KiB
C++

/****************************************************************
* This file is distributed under the following license:
*
* Copyright (c) 2006-2007, crypton
* Copyright (c) 2006, Matt Edman, Justin Hipple
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
****************************************************************/
/* ccr . 2015 Aug 01 . Resize Main page and Main window.
*
* On very small legacy CRTs of about 15" (38 cm) RetroShare pages are
* initially too deep (too tall) to fit the screen at 1024x768
* resolution. Some can be shrunk down manually from their initial
* size. Others cannot. This patch tries to allow each page to be
* shrunk somewhat. Then code that runs elsewhere to fit the logical
* Main window into the physical screen will have a better chance of
* success. Notably, on Linux -- Gnome3 -- X11 systems, only when the
* Main window first fits entirely into the physical screen, can it
* then be maximized.
*
* This code is borrowed from a Stack Overflow post:
*
* o Darkgaze. "Resize QStackedWidget to the Page Which Is Opened." 23
* Jan. 2013. Online posting. Stack Overflow. 1 Aug. 2015
* <https://stackoverflow.com/questions/14480696/resize-qstackedwidget-to-the-page-which-is-opened>.
*
*/
#include <QAction>
#include "mainpagestack.h"
/** Default constructor. */
MainPageStack::MainPageStack(QWidget *parent)
: QStackedWidget(parent)
{
}
/** Adds a page to the stack. */
void
MainPageStack::add(MainPage *page, QAction *action)
{
_pages.insert(action, page);
page->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); /* 2015 Aug 01 */
insertWidget(count(), page);
}
/** Sets the current Main page and checks its action. */
void
MainPageStack::setCurrentPage(MainPage *page)
{
foreach (QAction *action, _pages.keys(page)) {
action->setChecked(true);
}
setCurrentWidget(page);
}
/** Sets the current Main page index and checks its action. */
void
MainPageStack::setCurrentIndex(int index)
{
setCurrentPage((MainPage *)widget(index));
}
/** Shows the Main page associated with the activated action. */
void
MainPageStack::showPage(QAction *pageAction)
{
setCurrentWidget(_pages.value(pageAction));
}
/** Adjusts the size of the Main page and the Main window. */
void
MainPageStack::onCurrentChanged(int index) /* 2015 Aug 01 */
{
QWidget* pWidget = widget(index);
Q_ASSERT(pWidget);
pWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
pWidget->adjustSize();
adjustSize();
}