refactor some existing themes methods in a new base wxStdRenderer class (before adding a new theme)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41289 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
@@ -44,351 +44,6 @@
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxRenderer: drawing helpers
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// ----------------------------------------------------------------------------
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void wxRenderer::StandardDrawFrame(wxDC& dc,
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const wxRect& rectFrame,
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const wxRect& rectLabel)
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{
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// draw left, bottom and right lines entirely
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DrawVerticalLine(dc, rectFrame.GetLeft(),
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rectFrame.GetTop(), rectFrame.GetBottom() - 2);
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DrawHorizontalLine(dc, rectFrame.GetBottom() - 1,
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rectFrame.GetLeft(), rectFrame.GetRight());
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DrawVerticalLine(dc, rectFrame.GetRight() - 1,
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rectFrame.GetTop(), rectFrame.GetBottom() - 1);
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// and 2 parts of the top line
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DrawHorizontalLine(dc, rectFrame.GetTop(),
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rectFrame.GetLeft() + 1, rectLabel.GetLeft());
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DrawHorizontalLine(dc, rectFrame.GetTop(),
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rectLabel.GetRight(), rectFrame.GetRight() - 2);
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}
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/* static */
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void wxRenderer::StandardDrawTextLine(wxDC& dc,
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const wxString& text,
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const wxRect& rect,
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int selStart, int selEnd,
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int flags)
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{
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if ( (selStart == -1) || !(flags & wxCONTROL_FOCUSED) )
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{
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// just draw it as is
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dc.DrawText(text, rect.x, rect.y);
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}
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else // we have selection
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{
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wxCoord width,
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x = rect.x;
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// draw the part before selection
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wxString s(text, (size_t)selStart);
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if ( !s.empty() )
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{
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dc.DrawText(s, x, rect.y);
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dc.GetTextExtent(s, &width, NULL);
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x += width;
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}
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// draw the selection itself
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s = wxString(text.c_str() + selStart, text.c_str() + selEnd);
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if ( !s.empty() )
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{
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wxColour colFg = dc.GetTextForeground(),
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colBg = dc.GetTextBackground();
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dc.SetTextForeground(wxTHEME_COLOUR(HIGHLIGHT_TEXT));
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dc.SetTextBackground(wxTHEME_COLOUR(HIGHLIGHT));
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dc.SetBackgroundMode(wxSOLID);
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dc.DrawText(s, x, rect.y);
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dc.GetTextExtent(s, &width, NULL);
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x += width;
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dc.SetBackgroundMode(wxTRANSPARENT);
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dc.SetTextBackground(colBg);
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dc.SetTextForeground(colFg);
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}
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// draw the final part
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s = text.c_str() + selEnd;
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if ( !s.empty() )
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{
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dc.DrawText(s, x, rect.y);
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}
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}
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}
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// ----------------------------------------------------------------------------
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// wxRenderer: scrollbar geometry
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// ----------------------------------------------------------------------------
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#if wxUSE_SCROLLBAR
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/* static */
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void wxRenderer::StandardScrollBarThumbSize(wxCoord length,
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int thumbPos,
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int thumbSize,
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int range,
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wxCoord *thumbStart,
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wxCoord *thumbEnd)
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{
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// the thumb can't be made less than this number of pixels
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static const wxCoord thumbMinWidth = 8; // FIXME: should be configurable
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*thumbStart = (length*thumbPos) / range;
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*thumbEnd = (length*(thumbPos + thumbSize)) / range;
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if ( *thumbEnd - *thumbStart < thumbMinWidth )
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{
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// adjust the end if possible
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if ( *thumbStart <= length - thumbMinWidth )
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{
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// yes, just make it wider
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*thumbEnd = *thumbStart + thumbMinWidth;
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}
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else // it is at the bottom of the scrollbar
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{
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// so move it a bit up
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*thumbStart = length - thumbMinWidth;
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*thumbEnd = length;
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}
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}
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}
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/* static */
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wxRect wxRenderer::StandardGetScrollbarRect(const wxScrollBar *scrollbar,
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wxScrollBar::Element elem,
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int thumbPos,
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const wxSize& sizeArrow)
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{
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if ( thumbPos == -1 )
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{
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thumbPos = scrollbar->GetThumbPosition();
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}
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wxSize sizeTotal = scrollbar->GetClientSize();
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wxCoord *start, *width;
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wxCoord length, arrow;
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wxRect rect;
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if ( scrollbar->IsVertical() )
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{
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rect.x = 0;
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rect.width = sizeTotal.x;
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length = sizeTotal.y;
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start = &rect.y;
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width = &rect.height;
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arrow = sizeArrow.y;
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}
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else // horizontal
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{
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rect.y = 0;
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rect.height = sizeTotal.y;
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length = sizeTotal.x;
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start = &rect.x;
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width = &rect.width;
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arrow = sizeArrow.x;
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}
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switch ( elem )
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{
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case wxScrollBar::Element_Arrow_Line_1:
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*start = 0;
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*width = arrow;
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break;
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case wxScrollBar::Element_Arrow_Line_2:
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*start = length - arrow;
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*width = arrow;
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break;
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case wxScrollBar::Element_Arrow_Page_1:
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case wxScrollBar::Element_Arrow_Page_2:
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// we don't have them at all
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break;
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case wxScrollBar::Element_Thumb:
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case wxScrollBar::Element_Bar_1:
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case wxScrollBar::Element_Bar_2:
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// we need to calculate the thumb position - do it
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{
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length -= 2*arrow;
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wxCoord thumbStart, thumbEnd;
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int range = scrollbar->GetRange();
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if ( !range )
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{
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thumbStart =
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thumbEnd = 0;
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}
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else
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{
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StandardScrollBarThumbSize(length,
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thumbPos,
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scrollbar->GetThumbSize(),
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range,
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&thumbStart,
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&thumbEnd);
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}
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if ( elem == wxScrollBar::Element_Thumb )
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{
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*start = thumbStart;
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*width = thumbEnd - thumbStart;
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}
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else if ( elem == wxScrollBar::Element_Bar_1 )
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{
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*start = 0;
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*width = thumbStart;
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}
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else // elem == wxScrollBar::Element_Bar_2
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{
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*start = thumbEnd;
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*width = length - thumbEnd;
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}
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// everything is relative to the start of the shaft so far
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*start += arrow;
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}
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break;
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case wxScrollBar::Element_Max:
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default:
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wxFAIL_MSG( _T("unknown scrollbar element") );
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}
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return rect;
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}
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/* static */
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wxCoord wxRenderer::StandardScrollBarSize(const wxScrollBar *scrollbar,
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const wxSize& sizeArrowSB)
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{
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wxCoord sizeArrow, sizeTotal;
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if ( scrollbar->GetWindowStyle() & wxVERTICAL )
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{
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sizeArrow = sizeArrowSB.y;
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sizeTotal = scrollbar->GetSize().y;
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}
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else // horizontal
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{
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sizeArrow = sizeArrowSB.x;
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sizeTotal = scrollbar->GetSize().x;
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}
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return sizeTotal - 2*sizeArrow;
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}
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/* static */
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wxCoord wxRenderer::StandardScrollbarToPixel(const wxScrollBar *scrollbar,
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int thumbPos,
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const wxSize& sizeArrow)
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{
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int range = scrollbar->GetRange();
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if ( !range )
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{
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// the only valid position anyhow
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return 0;
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}
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if ( thumbPos == -1 )
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{
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// by default use the current thumb position
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thumbPos = scrollbar->GetThumbPosition();
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}
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return ( thumbPos*StandardScrollBarSize(scrollbar, sizeArrow) ) / range
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+ (scrollbar->IsVertical() ? sizeArrow.y : sizeArrow.x);
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}
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/* static */
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int wxRenderer::StandardPixelToScrollbar(const wxScrollBar *scrollbar,
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wxCoord coord,
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const wxSize& sizeArrow)
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{
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return ( (coord - (scrollbar->IsVertical() ? sizeArrow.y : sizeArrow.x)) *
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scrollbar->GetRange() ) /
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StandardScrollBarSize(scrollbar, sizeArrow);
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}
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/* static */
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wxHitTest wxRenderer::StandardHitTestScrollbar(const wxScrollBar *scrollbar,
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const wxPoint& pt,
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const wxSize& sizeArrowSB)
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{
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// we only need to work with either x or y coord depending on the
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// orientation, choose one (but still check the other one to verify if the
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// mouse is in the window at all)
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wxCoord coord, sizeArrow, sizeTotal;
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wxSize size = scrollbar->GetSize();
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if ( scrollbar->GetWindowStyle() & wxVERTICAL )
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{
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if ( pt.x < 0 || pt.x > size.x )
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return wxHT_NOWHERE;
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coord = pt.y;
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sizeArrow = sizeArrowSB.y;
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sizeTotal = size.y;
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}
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else // horizontal
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{
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if ( pt.y < 0 || pt.y > size.y )
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return wxHT_NOWHERE;
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coord = pt.x;
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sizeArrow = sizeArrowSB.x;
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sizeTotal = size.x;
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}
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// test for the arrows first as it's faster
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if ( coord < 0 || coord > sizeTotal )
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{
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return wxHT_NOWHERE;
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}
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else if ( coord < sizeArrow )
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{
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return wxHT_SCROLLBAR_ARROW_LINE_1;
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}
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else if ( coord > sizeTotal - sizeArrow )
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{
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return wxHT_SCROLLBAR_ARROW_LINE_2;
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}
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else
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{
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// calculate the thumb position in pixels
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sizeTotal -= 2*sizeArrow;
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wxCoord thumbStart, thumbEnd;
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int range = scrollbar->GetRange();
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if ( !range )
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{
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// clicking the scrollbar without range has no effect
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return wxHT_NOWHERE;
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}
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else
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{
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StandardScrollBarThumbSize(sizeTotal,
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scrollbar->GetThumbPosition(),
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scrollbar->GetThumbSize(),
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range,
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&thumbStart,
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&thumbEnd);
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}
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// now compare with the thumb position
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coord -= sizeArrow;
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if ( coord < thumbStart )
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return wxHT_SCROLLBAR_BAR_1;
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else if ( coord > thumbEnd )
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return wxHT_SCROLLBAR_BAR_2;
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else
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return wxHT_SCROLLBAR_THUMB;
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}
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}
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#endif // wxUSE_SCROLLBAR
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wxRenderer::~wxRenderer()
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{
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}
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@@ -679,10 +334,11 @@ void wxControlRenderer::DrawItems(const wxListBox *lbox,
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void wxControlRenderer::DoDrawItems(const wxListBox *lbox,
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size_t itemFirst, size_t itemLast,
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#if wxUSE_CHECKLISTBOX
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bool isCheckLbox)
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bool isCheckLbox
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#else
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bool WXUNUSED(isCheckLbox))
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bool WXUNUSED(isCheckLbox)
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#endif
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)
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{
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// prepare for the drawing: calc the initial position
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wxCoord lineHeight = lbox->GetLineHeight();
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