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Remove duplicate code in wxSTCListBox::OnDrawItem

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To remove code duplication in the OnDrawItem in wxSTCListBox and
wxSTCListBoxD2D, move the code for drawing just the text to a new
virtual method named OnDrawItemText. Then have the OnDrawItem method
call the new function.
This commit is contained in:
New Pagodi
2020-06-25 20:49:50 -05:00
parent f49f899856
commit 0a6eea9bb5
1 changed files with 28 additions and 50 deletions
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78
src/stc/PlatWX.cpp
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@@ -2679,6 +2679,8 @@ protected:
void SelectHelper(int i);
void RecalculateItemHeight();
int TextBoxFromClientEdge() const;
virtual void OnDrawItemText(wxDC&, const wxRect&,
const wxString&, const wxColour&) const;
// Event handlers
void OnSelection(wxCommandEvent&);
@@ -3019,6 +3021,17 @@ wxCoord wxSTCListBox::OnMeasureItem(size_t WXUNUSED(n)) const
// x = m_imagePadding + m_imageAreaWidth + m_imagePadding.
// Text is drawn at x + m_textBoxToTextGap and centered vertically.
void wxSTCListBox::OnDrawItemText(wxDC& dc, const wxRect& rect,
const wxString& label,
const wxColour& textCol) const
{
wxDCTextColourChanger tcc(dc, textCol);
wxString ellipsizedlabel = wxControl::Ellipsize(label, dc, wxELLIPSIZE_END,
rect.GetWidth());
dc.DrawText(ellipsizedlabel, rect.GetLeft(), rect.GetTop());
}
void wxSTCListBox::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
{
wxString label;
@@ -3041,11 +3054,10 @@ void wxSTCListBox::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
else
textCol = m_visualData->GetTextColour();
wxDCTextColourChanger tcc(dc, textCol);
wxRect rect2(rect.GetLeft() + leftGap, rect.GetTop() + topGap,
rect.GetWidth() - leftGap, m_textHeight);
label = wxControl::Ellipsize(label, dc, wxELLIPSIZE_END,
rect.GetWidth() - leftGap);
dc.DrawText(label, rect.GetLeft() + leftGap, rect.GetTop() + topGap);
OnDrawItemText(dc, rect2, label, textCol);
const wxBitmap* b = m_visualData->GetImage(imageNo);
if ( b )
@@ -3148,47 +3160,25 @@ public:
RecalculateItemHeight();
}
void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const wxOVERRIDE
void OnDrawItemText(wxDC& dc, const wxRect& rect, const wxString& label,
const wxColour& textCol) const wxOVERRIDE
{
wxString label;
int imageNo = -1;
if ( n < m_labels.size() )
{
label = m_labels[n];
imageNo = m_imageNos[n];
}
int topGap = m_textTopGap;
int leftGap = TextBoxFromClientEdge() + m_textBoxToTextGap;
wxColour textCol;
if ( IsSelected(n) )
textCol = m_visualData->GetHighlightTextColour();
else if ( static_cast<int>(n) == m_currentRow )
textCol = m_visualData->GetCurrentTextColour();
else
textCol = m_visualData->GetTextColour();
wxFontWithAscent* fontCopy = new wxFontWithAscent(wxFont());
SurfaceFontDataD2D* sfd = new SurfaceFontDataD2D(*m_surfaceFontData);
fontCopy->SetSurfaceFontData(sfd);
Font tempFont;
tempFont.SetID(fontCopy);
SurfaceD2D surface;
surface.Init(&dc, GetGrandParent());
wxString ellipsizedLabel = label;
wxFontWithAscent* fontCopy = new wxFontWithAscent(wxFont());
SurfaceFontDataD2D* newSurfaceData =
new SurfaceFontDataD2D(*m_surfaceFontData);
fontCopy->SetSurfaceFontData(newSurfaceData);
Font tempFont;
tempFont.SetID(fontCopy);
wxCharBuffer buffer = wx2stc(label);
wxCharBuffer buffer = wx2stc(ellipsizedLabel);
int curWidth = surface.WidthText(tempFont, buffer.data(),
wx2stclen(wxString(), buffer));
int maxWidth = rect.GetWidth() - leftGap;
if ( curWidth > maxWidth )
if ( curWidth > rect.GetWidth() )
{
int len = label.Length();
@@ -3201,34 +3191,22 @@ public:
curWidth = surface.WidthText(tempFont, buffer.data(),
wx2stclen(wxString(), buffer));
if ( curWidth <= maxWidth )
if ( curWidth <= rect.GetWidth() )
{
break;
}
}
}
wxRect rect2(rect.GetLeft() + leftGap, rect.GetTop() + topGap,
rect.GetWidth() - leftGap, m_textHeight);
PRectangle prect = PRectangleFromwxRect(rect2);
PRectangle prect = PRectangleFromwxRect(rect);
ColourDesired fore(textCol.Red(), textCol.Green(), textCol.Blue());
XYPOSITION ybase = rect2.GetTop() + m_surfaceFontData->GetAscent();
XYPOSITION ybase = rect.GetTop() + m_surfaceFontData->GetAscent();
surface.DrawTextTransparent(prect, tempFont, ybase, buffer.data(),
wx2stclen(wxString(), buffer), fore);
tempFont.Release();
surface.Release();
const wxBitmap* b = m_visualData->GetImage(imageNo);
if ( b )
{
const int width = m_visualData->GetImageAreaWidth();
topGap = (m_itemHeight - b->GetHeight()) / 2;
leftGap = m_imagePadding + (width - b->GetWidth()) / 2;
dc.DrawBitmap(*b, rect.GetLeft() + leftGap, rect.GetTop() + topGap, true);
}
}
private: