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wxRTC now properly honours margin size

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Added wxRE_CENTRE_CARET style to centre the caret line vertically


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@58256 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2009-01-21 12:05:11 +00:00
parent 0af9ce687d
commit ff0ac260ef
4 changed files with 71 additions and 17 deletions
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53
src/richtext/richtextctrl.cpp
View File

@@ -216,6 +216,9 @@ bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& va
SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
}
// No physical scrolling, so we can preserve margins
EnableScrolling(false, false);
if (style & wxTE_READONLY)
SetEditable(false);
@@ -388,8 +391,18 @@ void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
SetupScrollbars();
}
wxRect clipRect(availableSpace);
clipRect.x += GetBuffer().GetLeftMargin();
clipRect.y += GetBuffer().GetTopMargin();
clipRect.width -= (GetBuffer().GetLeftMargin() + GetBuffer().GetRightMargin());
clipRect.height -= (GetBuffer().GetTopMargin() + GetBuffer().GetBottomMargin());
clipRect.SetPosition(GetLogicalPoint(clipRect.GetPosition()));
dc.SetClippingRegion(clipRect);
GetBuffer().Draw(dc, GetBuffer().GetRange(), GetInternalSelectionRange(), drawingArea, 0 /* descent */, 0 /* flags */);
dc.DestroyClippingRegion();
#if wxRICHTEXT_USE_OWN_CARET
if (GetCaret()->IsVisible())
{
@@ -1224,6 +1237,27 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
bool scrolled = false;
wxSize clientSize = GetClientSize();
clientSize.y -= GetBuffer().GetBottomMargin();
if (GetWindowStyle() & wxRE_CENTRE_CARET)
{
int y = rect.y - GetClientSize().y/2;
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
if (y >= 0 && (y + clientSize.y) < GetBuffer().GetCachedSize().y)
{
if (startYUnits != yUnits)
{
SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
scrolled = true;
}
#if !wxRICHTEXT_USE_OWN_CARET
if (scrolled)
#endif
PositionCaret();
return scrolled;
}
}
// Going down
if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN ||
@@ -1248,11 +1282,11 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
scrolled = true;
}
}
else if (rect.y < startY)
else if (rect.y < (startY + GetBuffer().GetTopMargin()))
{
// Make it scroll so this item is at the top
// of the window
int y = rect.y ;
int y = rect.y - GetBuffer().GetTopMargin();
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
if (startYUnits != yUnits)
@@ -1268,11 +1302,11 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME ||
keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP )
{
if (rect.y < startY)
if (rect.y < (startY + GetBuffer().GetBottomMargin()))
{
// Make it scroll so this item is at the top
// of the window
int y = rect.y ;
int y = rect.y - GetBuffer().GetTopMargin();
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
if (startYUnits != yUnits)
@@ -1326,8 +1360,9 @@ bool wxRichTextCtrl::IsPositionVisible(long pos) const
wxRect rect = line->GetRect();
wxSize clientSize = GetClientSize();
clientSize.y -= GetBuffer().GetBottomMargin();
return (rect.GetBottom() > startY) && (rect.GetTop() < (startY + clientSize.y));
return (rect.GetBottom() > (startY + GetBuffer().GetTopMargin())) && (rect.GetTop() < (startY + clientSize.y));
}
void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
@@ -1974,7 +2009,7 @@ void wxRichTextCtrl::SetupScrollbars(bool atTop)
int pixelsPerUnit = 5;
wxSize clientSize = GetClientSize();
int maxHeight = GetBuffer().GetCachedSize().y;
int maxHeight = GetBuffer().GetCachedSize().y + GetBuffer().GetTopMargin();
// Round up so we have at least maxHeight pixels
int unitsY = (int) (((float)maxHeight/(float)pixelsPerUnit) + 0.5);
@@ -2941,6 +2976,12 @@ void wxRichTextCtrl::PositionCaret()
GetCaret()->Hide();
if (GetCaret()->GetSize() != newSz)
GetCaret()->SetSize(newSz);
int halfSize = newSz.y/2;
// If the caret is beyond the margin, hide it by moving it out of the way
if (((pt.y + halfSize) < GetBuffer().GetTopMargin()) || ((pt.y + halfSize) > (GetClientSize().y - GetBuffer().GetBottomMargin())))
pt.y = -200;
GetCaret()->Move(pt);
GetCaret()->Show();
}