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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
/*
* Copyright (C) 2011 August Sodora <augsod@gmail.com>
*/
#include "baside2.hxx"
#include "linenumberwindow.hxx"
#include <vcl/xtextedt.hxx>
#include <vcl/textview.hxx>
namespace basctl
{
LineNumberWindow::LineNumberWindow (Window* pParent, ModulWindow* pModulWindow) :
Window(pParent, WB_BORDER),
m_pModulWindow(pModulWindow),
m_nCurYOffset(0)
{
SetBackground(Wallpaper(GetSettings().GetStyleSettings().GetFieldColor()));
m_nBaseWidth = GetTextWidth("8");
m_nWidth = m_nBaseWidth * 3 + m_nBaseWidth / 2;
}
LineNumberWindow::~LineNumberWindow()
{ }
void LineNumberWindow::Paint( const Rectangle& )
{
if(SyncYOffset())
return;
ExtTextEngine* txtEngine = m_pModulWindow->GetEditEngine();
if(!txtEngine)
return;
TextView* txtView = m_pModulWindow->GetEditView();
if(!txtView)
return;
GetParent()->Resize();
int windowHeight = GetOutputSize().Height();
int nLineHeight = GetTextHeight();
if(!nLineHeight)
{
return;
}
int startY = txtView->GetStartDocPos().Y();
int nStartLine = startY / nLineHeight + 1;
int nEndLine = (startY + windowHeight) / nLineHeight + 1;
if(txtEngine->GetParagraphCount() + 1 < (unsigned int)nEndLine)
nEndLine = txtEngine->GetParagraphCount() + 1;
// FIXME: it would be best if we could get notified of a font change
// rather than doing that re-calculation at each Paint event
m_nBaseWidth = GetTextWidth("8");
// reserve enough for 3 sigit minimum, with a bit to spare for confort
m_nWidth = m_nBaseWidth * 3 + m_nBaseWidth / 2;
int i = (nEndLine + 1) / 1000;
while(i)
{
i /= 10;
m_nWidth += m_nBaseWidth;
}
sal_Int64 y = (nStartLine - 1) * (sal_Int64)nLineHeight;
for(sal_Int32 n = nStartLine; n <= nEndLine; ++n, y += nLineHeight)
DrawText(Point(0, y - m_nCurYOffset), OUString::valueOf(n));
}
void LineNumberWindow::DataChanged(DataChangedEvent const & rDCEvt)
{
Window::DataChanged(rDCEvt);
if (rDCEvt.GetType() == DATACHANGED_SETTINGS
&& (rDCEvt.GetFlags() & SETTINGS_STYLE) != 0)
{
Color aColor(GetSettings().GetStyleSettings().GetFieldColor());
const AllSettings* pOldSettings = rDCEvt.GetOldSettings();
if (!pOldSettings || aColor != pOldSettings->GetStyleSettings().GetFieldColor())
{
SetBackground(Wallpaper(aColor));
Invalidate();
}
}
}
void LineNumberWindow::DoScroll(long nHorzScroll, long nVertScroll)
{
m_nCurYOffset -= nVertScroll;
Window::Scroll(nHorzScroll, nVertScroll);
}
long& LineNumberWindow::GetCurYOffset()
{
return m_nCurYOffset;
}
bool LineNumberWindow::SyncYOffset()
{
TextView* pView = m_pModulWindow->GetEditView();
if (!pView)
return false;
long nViewYOffset = pView->GetStartDocPos().Y();
if (m_nCurYOffset == nViewYOffset)
return false;
m_nCurYOffset = nViewYOffset;
Invalidate();
return true;
}
int LineNumberWindow::GetWidth()
{
return m_nWidth;
}
} // namespace basctl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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