695 lines
21 KiB
C++
695 lines
21 KiB
C++
/*************************************************************************
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*
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* $RCSfile: ScrollPanel.cxx,v $
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*
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* $Revision: 1.5 $
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*
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* last change: $Author: kz $ $Date: 2005-03-18 16:55:24 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#include "taskpane/ScrollPanel.hxx"
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#include "ControlContainer.hxx"
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#include "TaskPaneFocusManager.hxx"
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#include "TitledControl.hxx"
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#include <vcl/svapp.hxx>
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namespace sd { namespace toolpanel {
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ScrollPanel::ScrollPanel (
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TreeNode* pParent)
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: Control (pParent->GetWindow(), WB_DIALOGCONTROL),
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TreeNode(pParent),
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maScrollWindow(this, WB_DIALOGCONTROL),
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maVerticalScrollBar(this, WB_VERT),
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maHorizontalScrollBar(this, WB_HORZ),
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maScrollBarFiller(this),
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maScrollWindowFiller(&maScrollWindow),
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mbIsRearrangePending(true),
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mbIsLayoutPending(true),
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mnChildrenWidth(0),
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mnVerticalBorder(2),
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mnVerticalGap(3),
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mnHorizontalBorder(2)
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{
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SetAccessibleName (
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::rtl::OUString::createFromAscii("Sub Task Panel"));
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mpControlContainer->SetMultiSelection (true);
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SetBorderStyle (WINDOW_BORDER_NORMAL);
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SetMapMode (MapMode(MAP_PIXEL));
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// To reduce flickering during repaints make the container windows
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// transparent and rely on their children to paint the whole area.
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SetBackground(Wallpaper());
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maScrollWindow.SetBackground(Wallpaper());
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maScrollWindowFiller.SetBackground(
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Application::GetSettings().GetStyleSettings().GetWindowColor());
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maScrollWindow.Show();
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// Initialize the scroll bars.
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maVerticalScrollBar.SetScrollHdl (
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LINK(this, ScrollPanel, ScrollBarHandler));
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maVerticalScrollBar.EnableDrag (TRUE);
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maHorizontalScrollBar.SetScrollHdl (
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LINK(this, ScrollPanel, ScrollBarHandler));
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maHorizontalScrollBar.EnableDrag (TRUE);
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}
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ScrollPanel::~ScrollPanel (void)
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{
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sal_uInt32 nCount = mpControlContainer->GetControlCount();
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for (sal_uInt32 nIndex=0; nIndex<nCount; nIndex++)
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{
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TreeNode* pNode = mpControlContainer->GetControl(nIndex);
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TreeNode* pControl = pNode;
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// When the node has been created as TitledControl then use its
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// control instead of pNode directly.
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TitledControl* pTitledControl = static_cast<TitledControl*>(pNode);
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if (pTitledControl != NULL)
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pControl = pTitledControl->GetControl(false);
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// Remove this object as listener from the control.
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if (pControl != NULL && pControl->GetWindow()!=NULL)
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{
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pControl->GetWindow()->RemoveEventListener(
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LINK(this,ScrollPanel,WindowEventListener));
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}
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}
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mpControlContainer->DeleteChildren();
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}
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void ScrollPanel::ListHasChanged (void)
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{
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mpControlContainer->ListHasChanged ();
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RequestResize ();
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}
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void ScrollPanel::AddControl (
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::std::auto_ptr<TreeNode> pControl,
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const String& rTitle,
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ULONG nHelpId)
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{
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pControl->GetWindow()->AddEventListener (
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LINK(this,ScrollPanel,WindowEventListener));
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// We are interested only in the title. The control itself is
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// managed by the content object.
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TitledControl* pTitledControl = new TitledControl(
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this,
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pControl,
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rTitle,
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TitleBar::TBT_SUB_CONTROL_HEADLINE);
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pTitledControl->GetWindow()->SetParent(&maScrollWindow);
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pTitledControl->GetTitleBar()->SetHelpId(nHelpId);
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::std::auto_ptr<TreeNode> pChild (pTitledControl);
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// Add a down link only for the first control so that when
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// entering the sub tool panel the focus is set to the first control.
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if (mpControlContainer->GetControlCount() == 0)
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FocusManager::Instance().RegisterDownLink (
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GetParent(),
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pTitledControl->GetWindow());
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FocusManager::Instance().RegisterUpLink (
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pTitledControl->GetWindow(),
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GetParent());
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mpControlContainer->AddControl(pChild);
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mpControlContainer->SetExpansionState(
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mpControlContainer->GetControlCount()-1,
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ControlContainer::ES_EXPAND);
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}
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void ScrollPanel::AddControl (::std::auto_ptr<TreeNode> pControl)
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{
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pControl->GetWindow()->AddEventListener (
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LINK(this,ScrollPanel,WindowEventListener));
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pControl->GetWindow()->SetParent(&maScrollWindow);
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// Add a down link only for the first control so that when
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// entering the sub tool panel the focus is set to the first control.
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if (mpControlContainer->GetControlCount() == 0)
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FocusManager::Instance().RegisterDownLink (
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GetParent(),
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pControl->GetWindow());
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FocusManager::Instance().RegisterUpLink (
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pControl->GetWindow(),
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GetParent());
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mpControlContainer->AddControl (pControl);
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mpControlContainer->SetExpansionState(
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mpControlContainer->GetControlCount()-1,
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ControlContainer::ES_EXPAND);
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}
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void ScrollPanel::Paint (const Rectangle& rRect)
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{
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if (mbIsRearrangePending)
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Rearrange();
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if (mbIsLayoutPending)
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LayoutChildren();
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::Window::Paint (rRect);
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// Paint the outer border and the space between every two children.
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Color aOriginalLineColor (maScrollWindow.GetLineColor());
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Color aOriginalFillColor (maScrollWindow.GetFillColor());
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maScrollWindow.SetLineColor ();
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maScrollWindow.SetFillColor (
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GetSettings().GetStyleSettings().GetWindowColor());
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Size aSize (maScrollWindow.GetOutputSizePixel());
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// Paint left and right vertical border.
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Rectangle aVerticalArea (
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Point(0,0),
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Size(mnHorizontalBorder,aSize.Height()));
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maScrollWindow.DrawRect (aVerticalArea);
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aVerticalArea.Right() += mnHorizontalBorder + mnChildrenWidth - 1;
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aVerticalArea.Left() = aVerticalArea.Right() + mnHorizontalBorder;
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maScrollWindow.DrawRect (aVerticalArea);
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// Paint horizontal stripes.
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Rectangle aStripeArea (
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Point (mnHorizontalBorder,0),
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Size(mnChildrenWidth,0));
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StripeList::const_iterator iStripe;
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for (iStripe=maStripeList.begin(); iStripe!=maStripeList.end(); iStripe++)
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{
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aStripeArea.Top() = iStripe->first;
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aStripeArea.Bottom() = iStripe->second;
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if (aStripeArea.Bottom() < 0)
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continue;
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if (aStripeArea.Top() >= aSize.Height())
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break;
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maScrollWindow.DrawRect (aStripeArea);
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}
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maScrollWindow.SetLineColor (aOriginalLineColor);
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maScrollWindow.SetFillColor (aOriginalFillColor);
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}
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void ScrollPanel::Resize (void)
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{
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::Window::Resize();
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mbIsRearrangePending = true;
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mbIsLayoutPending = true;
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}
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void ScrollPanel::RequestResize (void)
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{
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mbIsRearrangePending = true;
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mbIsLayoutPending = true;
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Invalidate();
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}
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Size ScrollPanel::GetPreferredSize (void)
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{
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return GetRequiredSize();
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}
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sal_Int32 ScrollPanel::GetPreferredWidth (sal_Int32 nHeight)
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{
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return GetPreferredSize().Width();
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}
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sal_Int32 ScrollPanel::GetPreferredHeight (sal_Int32 nWidth)
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{
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return GetPreferredSize().Height();
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}
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bool ScrollPanel::IsResizable (void)
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{
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return true;
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}
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::Window* ScrollPanel::GetWindow (void)
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{
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return this;
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}
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sal_Int32 ScrollPanel::GetMinimumWidth (void)
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{
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return TreeNode::GetMinimumWidth();
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}
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void ScrollPanel::ExpandControl (
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TreeNode* pControl,
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bool bExpansionState)
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{
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// Toggle expand status.
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pControl->Expand (bExpansionState);
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Rearrange ();
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Invalidate ();
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}
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/** This control shows an expansion bar for every control and in a
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separate area below that expansion area it shows all controls each
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with its title bar. When there is not enough space then show a
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scroll bar in the control area.
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*/
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void ScrollPanel::Rearrange (void)
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{
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Size aRequiredSize (GetRequiredSize());
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if (aRequiredSize.Width()>0 && aRequiredSize.Height()>0)
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{
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Size aAvailableSize (SetupScrollBars (aRequiredSize));
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maScrollWindow.SetPosSizePixel(
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Point(0,0),
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aAvailableSize);
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// Make the children at least as wide as the sub tool panel.
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if (aRequiredSize.Width() < aAvailableSize.Width())
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aRequiredSize.Width() = aAvailableSize.Width();
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mnChildrenWidth = -2*mnHorizontalBorder;
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if (maHorizontalScrollBar.IsVisible())
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mnChildrenWidth += aRequiredSize.Width();
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else
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mnChildrenWidth += aAvailableSize.Width();
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sal_Int32 nChildrenHeight (LayoutChildren());
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maVerticalScrollBar.SetRangeMax (
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nChildrenHeight + mnVerticalBorder);
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mbIsRearrangePending = false;
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}
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}
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Size ScrollPanel::GetRequiredSize (void)
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{
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// First determine the width of the children. This is the maximum of
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// the current window width and the individual minimum widths of the
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// children.
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int nChildrenWidth (GetSizePixel().Width());
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unsigned int nCount = mpControlContainer->GetControlCount();
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unsigned int nIndex;
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for (nIndex=0; nIndex<nCount; nIndex++)
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{
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TreeNode* pChild = mpControlContainer->GetControl (nIndex);
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int nMinimumWidth (pChild->GetMinimumWidth());
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if (nMinimumWidth > nChildrenWidth)
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nChildrenWidth = nMinimumWidth;
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}
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// Determine the accumulated width of all children when scaled to the
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// minimum width.
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nChildrenWidth -= 2*mnHorizontalBorder;
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Size aTotalSize (nChildrenWidth,
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2*mnVerticalBorder + (nCount-1) * mnVerticalGap);
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for (nIndex=0; nIndex<nCount; nIndex++)
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{
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TreeNode* pChild = mpControlContainer->GetControl (nIndex);
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sal_Int32 nHeight = pChild->GetPreferredHeight(nChildrenWidth);
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aTotalSize.Height() += nHeight;
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}
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return aTotalSize;
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}
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sal_Int32 ScrollPanel::LayoutChildren (void)
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{
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maStripeList.clear();
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Point aPosition (maScrollOffset);
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aPosition.X() += mnHorizontalBorder;
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maStripeList.push_back( ::std::pair<int,int>(
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aPosition.Y(),
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aPosition.Y() + mnVerticalBorder - 1));
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aPosition.Y() += mnVerticalBorder;
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// Place the controls one over the other.
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unsigned int nCount (mpControlContainer->GetControlCount());
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for (unsigned int nIndex=0; nIndex<nCount; nIndex++)
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{
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if (nIndex > 0)
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{
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maStripeList.push_back( ::std::pair<int,int>(
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aPosition.Y(),
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aPosition.Y() + mnVerticalGap - 1));
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aPosition.Y() += mnVerticalGap;
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}
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TreeNode* pChild = mpControlContainer->GetControl (nIndex);
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int nControlHeight = pChild->GetPreferredHeight(mnChildrenWidth);
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pChild->GetWindow()->SetPosSizePixel(
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aPosition,
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Size(mnChildrenWidth, nControlHeight));
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aPosition.Y() += nControlHeight;
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}
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// If the children do not cover their parent window completely
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// (regarding the height) we put a filler below that is responsible for
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// painting the remaining space.
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int nWindowHeight = maScrollWindow.GetSizePixel().Height();
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if (aPosition.Y() < nWindowHeight)
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{
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maScrollWindowFiller.SetPosSizePixel (
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aPosition,
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Size(mnChildrenWidth, nWindowHeight-aPosition.Y()));
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maStripeList.push_back( ::std::pair<int,int>(
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aPosition.Y(),
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nWindowHeight-1));
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// maScrollWindowFiller.Show();
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aPosition.Y() = nWindowHeight;
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}
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else
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maScrollWindowFiller.Hide();
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aPosition.Y() += mnVerticalBorder;
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mbIsLayoutPending = false;
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return aPosition.Y()-maScrollOffset.Y();
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}
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Size ScrollPanel::SetupScrollBars (const Size& rRequiredSize)
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{
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Size aWindowSize (GetSizePixel());
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Size aScrollBarSize (
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maVerticalScrollBar.GetSizePixel().Width(),
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maHorizontalScrollBar.GetSizePixel().Height());
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Size aRemainingSize (aWindowSize);
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// Determine which scroll bars have to be shown.
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bool bShowHorizontal = false;
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if (rRequiredSize.Width() > aWindowSize.Width())
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bShowHorizontal = true;
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bool bShowVertical = false;
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if (rRequiredSize.Height() > aWindowSize.Height())
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bShowVertical = true;
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// Showing one scroll bar may reduce the available size so that the
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// other one has to be shown as well.
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if (bShowHorizontal && ! bShowVertical)
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{
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if ((rRequiredSize.Height() + aScrollBarSize.Height())
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> aWindowSize.Height())
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bShowVertical = true;
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}
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else if (bShowVertical && ! bShowHorizontal)
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{
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if (GetMinimumWidth() + aScrollBarSize.Width() > aWindowSize.Width())
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bShowHorizontal = true;
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}
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// Setup the scroll bars.
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aRemainingSize.Width()
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= SetupVerticalScrollBar (bShowVertical, rRequiredSize.Height());
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aRemainingSize.Height()
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= SetupHorizontalScrollBar (bShowHorizontal, rRequiredSize.Width());
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// Place the filler.
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if (bShowHorizontal && bShowVertical)
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{
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maScrollBarFiller.SetPosSizePixel (
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Point(aWindowSize.Width(), aWindowSize.Height()),
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aScrollBarSize);
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maScrollBarFiller.Show();
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}
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else
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maScrollBarFiller.Hide();
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return aRemainingSize;
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}
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sal_Int32 ScrollPanel::SetupVerticalScrollBar (bool bShow, sal_Int32 nRange)
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{
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Size aScrollBarSize (
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maVerticalScrollBar.GetSizePixel().Width(),
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maHorizontalScrollBar.GetSizePixel().Height());
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Size aWindowSize (GetOutputSizePixel());
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sal_Int32 nRemainingWidth (aWindowSize.Width());
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// Setup the verical scroll bar.
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if (bShow)
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{
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int nWidth = aScrollBarSize.Width();
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int nHeight = aWindowSize.Height();
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maVerticalScrollBar.SetPosSizePixel(
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Point(aWindowSize.Width()-nWidth,0),
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Size(nWidth, nHeight));
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maVerticalScrollBar.Show();
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// Set the scroll bar range and thumb size.
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maVerticalScrollBar.SetRangeMin (0);
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maVerticalScrollBar.SetRangeMax (
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nRange + 2*mnVerticalBorder);
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maVerticalScrollBar.SetVisibleSize (aWindowSize.Height());
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// Make page size approx. 10% of visible area.
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maVerticalScrollBar.SetLineSize (aWindowSize.Height()/10);
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// Make page size approx. 100% of visible area.
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maVerticalScrollBar.SetPageSize (aWindowSize.Height());
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// Make sure that thumb is inside the valid range.
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maVerticalScrollBar.SetThumbPos(-maScrollOffset.Y());
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long nMinPos = maVerticalScrollBar.GetRangeMin();
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if (maVerticalScrollBar.GetThumbPos() < nMinPos)
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maVerticalScrollBar.SetThumbPos(nMinPos);
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long nMaxPos = maVerticalScrollBar.GetRangeMax()
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- maVerticalScrollBar.GetVisibleSize();
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if (maVerticalScrollBar.GetThumbPos() >= nMaxPos)
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maVerticalScrollBar.SetThumbPos(nMaxPos);
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// Set offset to match thumb pos.
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maScrollOffset.Y() = -maVerticalScrollBar.GetThumbPos();
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nRemainingWidth -= aScrollBarSize.Width();
|
|
}
|
|
else
|
|
{
|
|
maVerticalScrollBar.Hide();
|
|
maScrollOffset.Y() = 0;
|
|
}
|
|
|
|
return nRemainingWidth;
|
|
}
|
|
|
|
|
|
|
|
|
|
sal_Int32 ScrollPanel::SetupHorizontalScrollBar (bool bShow, sal_Int32 nRange)
|
|
{
|
|
Size aScrollBarSize (
|
|
maVerticalScrollBar.GetSizePixel().Width(),
|
|
maHorizontalScrollBar.GetSizePixel().Height());
|
|
Size aWindowSize (GetOutputSizePixel());
|
|
sal_Int32 nRemainingHeight (aWindowSize.Height());
|
|
|
|
// Setup the horizontal scroll bar.
|
|
if (bShow)
|
|
{
|
|
int nHeight = aScrollBarSize.Height();
|
|
int nWidth = GetOutputSizePixel().Width();
|
|
maHorizontalScrollBar.SetPosSizePixel(
|
|
Point(0, aWindowSize.Height()-nHeight),
|
|
Size(nWidth,nHeight));
|
|
maHorizontalScrollBar.Show();
|
|
|
|
// Set the scroll bar range and thumb size.
|
|
maHorizontalScrollBar.SetRangeMin (0);
|
|
maHorizontalScrollBar.SetRangeMax (
|
|
nRange + 2*mnHorizontalBorder);
|
|
maHorizontalScrollBar.SetVisibleSize (aWindowSize.Width());
|
|
// Make page size approx. 5% of visible area.
|
|
maHorizontalScrollBar.SetLineSize (aWindowSize.Width()/20+1);
|
|
// Make page size approx. 50% of visible area.
|
|
maHorizontalScrollBar.SetPageSize (aWindowSize.Width()/2+1);
|
|
// Make sure that thumb is inside the valid range.
|
|
maHorizontalScrollBar.SetThumbPos(-maScrollOffset.X());
|
|
long nMinPos = maHorizontalScrollBar.GetRangeMin();
|
|
if (maHorizontalScrollBar.GetThumbPos() < nMinPos)
|
|
maHorizontalScrollBar.SetThumbPos(nMinPos);
|
|
long nMaxPos = maHorizontalScrollBar.GetRangeMax()
|
|
- maHorizontalScrollBar.GetVisibleSize();
|
|
if (maHorizontalScrollBar.GetThumbPos() >= nMaxPos)
|
|
maHorizontalScrollBar.SetThumbPos(nMaxPos);
|
|
// Set offset to match thumb pos.
|
|
maScrollOffset.X() = -maHorizontalScrollBar.GetThumbPos();
|
|
|
|
nRemainingHeight -= aScrollBarSize.Height();
|
|
}
|
|
else
|
|
{
|
|
maHorizontalScrollBar.Hide();
|
|
maScrollOffset.X() = 0;
|
|
}
|
|
|
|
return nRemainingHeight;
|
|
}
|
|
|
|
|
|
IMPL_LINK(ScrollPanel, ScrollBarHandler, ScrollBar*, pScrollBar)
|
|
{
|
|
maScrollOffset.X() -= maHorizontalScrollBar.GetDelta();
|
|
maScrollOffset.Y() -= maVerticalScrollBar.GetDelta();
|
|
|
|
// Scrolling is done by moving the child windows up or down.
|
|
mbIsLayoutPending = true;
|
|
Invalidate();
|
|
// LayoutChildren();
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
IMPL_LINK(ScrollPanel, WindowEventListener, VclSimpleEvent*, pEvent)
|
|
{
|
|
if (pEvent!=NULL && pEvent->ISA(VclWindowEvent))
|
|
{
|
|
VclWindowEvent* pWindowEvent = static_cast<VclWindowEvent*>(pEvent);
|
|
switch (pWindowEvent->GetId())
|
|
{
|
|
case VCLEVENT_WINDOW_SHOW:
|
|
case VCLEVENT_WINDOW_HIDE:
|
|
case VCLEVENT_WINDOW_ACTIVATE:
|
|
case VCLEVENT_WINDOW_RESIZE:
|
|
RequestResize();
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
long ScrollPanel::Notify( NotifyEvent& rNEvt )
|
|
{
|
|
long nRet = FALSE;
|
|
if( rNEvt.GetType() == EVENT_COMMAND )
|
|
{
|
|
// note: dynamic_cast is not possible as GetData() returns a void*
|
|
CommandEvent* pCmdEvent = reinterpret_cast< CommandEvent* >(rNEvt.GetData());
|
|
DBG_ASSERT( pCmdEvent!=0 &&
|
|
( pCmdEvent->IsMouseEvent() == TRUE ||
|
|
pCmdEvent->IsMouseEvent() == FALSE ),
|
|
"Invalid CommandEvent" );
|
|
if (pCmdEvent)
|
|
switch (pCmdEvent->GetCommand())
|
|
{
|
|
case COMMAND_WHEEL:
|
|
case COMMAND_STARTAUTOSCROLL:
|
|
case COMMAND_AUTOSCROLL:
|
|
{
|
|
nRet = HandleScrollCommand (*pCmdEvent, &maHorizontalScrollBar, &maVerticalScrollBar);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if( ! nRet )
|
|
nRet = ::Window::Notify( rNEvt );
|
|
|
|
return nRet;
|
|
}
|
|
|
|
|
|
} } // end of namespace ::sd::toolpanel
|