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added line selection

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20951 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2003-06-05 20:30:56 +00:00
parent 13bf5a8231
commit 0994d9683e
2 changed files with 99 additions and 18 deletions
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105
src/html/htmlwin.cpp
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@@ -176,6 +176,7 @@ void wxHtmlWindow::Init()
m_timerAutoScroll = NULL;
#endif
m_backBuffer = NULL;
m_lastDoubleClick = 0;
}
bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
@@ -860,20 +861,30 @@ void wxHtmlWindow::OnMouseMove(wxMouseEvent& event)
void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
{
#if wxUSE_CLIPBOARD
if ( event.LeftDown() && IsSelectionEnabled() )
{
m_makingSelection = true;
if ( m_selection )
const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
{
wxDELETE(m_selection);
Refresh();
SelectLine(CalcUnscrolledPosition(event.GetPosition()));
}
m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
m_tmpSelFromCell = NULL;
else
{
m_makingSelection = true;
if ( m_selection )
{
wxDELETE(m_selection);
Refresh();
}
m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
m_tmpSelFromCell = NULL;
CaptureMouse();
CaptureMouse();
}
}
#endif
}
void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
@@ -1145,20 +1156,78 @@ void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
// select word under cursor:
if ( IsSelectionEnabled() )
{
wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
if ( cell )
{
delete m_selection;
m_selection = new wxHtmlSelection();
m_selection->Set(cell, cell);
RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
wxSize(cell->GetWidth(), cell->GetHeight())));
}
SelectWord(CalcUnscrolledPosition(event.GetPosition()));
m_lastDoubleClick = wxGetLocalTimeMillis();
}
else
event.Skip();
}
void wxHtmlWindow::SelectWord(const wxPoint& pos)
{
wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
if ( cell )
{
delete m_selection;
m_selection = new wxHtmlSelection();
m_selection->Set(cell, cell);
RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
wxSize(cell->GetWidth(), cell->GetHeight())));
}
}
void wxHtmlWindow::SelectLine(const wxPoint& pos)
{
wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
if ( cell )
{
// We use following heuristic to find a "line": let the line be all
// cells in same container as the cell under mouse cursor that are
// neither completely above nor completely bellow the clicked cell
// (i.e. are likely to be words positioned on same line of text).
int y1 = cell->GetAbsPos().y;
int y2 = y1 + cell->GetHeight();
int y;
const wxHtmlCell *c;
const wxHtmlCell *before = NULL;
const wxHtmlCell *after = NULL;
// find last cell of line:
for ( c = cell->GetNext(); c; c = c->GetNext())
{
y = c->GetAbsPos().y;
if ( y + c->GetHeight() > y1 && y < y2 )
after = c;
else
break;
}
if ( !after )
after = cell;
// find first cell of line:
for ( c = cell->GetParent()->GetFirstChild();
c && c != cell; c = c->GetNext())
{
y = c->GetAbsPos().y;
if ( y + c->GetHeight() > y1 && y < y2 )
{
if ( ! before )
before = c;
}
else
before = NULL;
}
if ( !before )
before = cell;
delete m_selection;
m_selection = new wxHtmlSelection();
m_selection->Set(before, after);
Refresh();
}
}
#endif