-// ----------------------------------------------------------------------------
-// wxRenderer: drawing helpers
-// ----------------------------------------------------------------------------
-
-void wxRenderer::StandardDrawFrame(wxDC& dc,
- const wxRect& rectFrame,
- const wxRect& rectLabel)
-{
- // draw left, bottom and right lines entirely
- DrawVerticalLine(dc, rectFrame.GetLeft(),
- rectFrame.GetTop(), rectFrame.GetBottom() - 2);
- DrawHorizontalLine(dc, rectFrame.GetBottom() - 1,
- rectFrame.GetLeft(), rectFrame.GetRight());
- DrawVerticalLine(dc, rectFrame.GetRight() - 1,
- rectFrame.GetTop(), rectFrame.GetBottom() - 1);
-
- // and 2 parts of the top line
- DrawHorizontalLine(dc, rectFrame.GetTop(),
- rectFrame.GetLeft() + 1, rectLabel.GetLeft());
- DrawHorizontalLine(dc, rectFrame.GetTop(),
- rectLabel.GetRight(), rectFrame.GetRight() - 2);
-}
-
-/* static */
-void wxRenderer::StandardDrawTextLine(wxDC& dc,
- const wxString& text,
- const wxRect& rect,
- int selStart, int selEnd,
- int flags)
-{
- if ( (selStart == -1) || !(flags & wxCONTROL_FOCUSED) )
- {
- // just draw it as is
- dc.DrawText(text, rect.x, rect.y);
- }
- else // we have selection
- {
- wxCoord width,
- x = rect.x;
-
- // draw the part before selection
- wxString s(text, (size_t)selStart);
- if ( !s.empty() )
- {
- dc.DrawText(s, x, rect.y);
-
- dc.GetTextExtent(s, &width, NULL);
- x += width;
- }
-
- // draw the selection itself
- s = wxString(text.c_str() + selStart, text.c_str() + selEnd);
- if ( !s.empty() )
- {
- wxColour colFg = dc.GetTextForeground(),
- colBg = dc.GetTextBackground();
- dc.SetTextForeground(wxTHEME_COLOUR(HIGHLIGHT_TEXT));
- dc.SetTextBackground(wxTHEME_COLOUR(HIGHLIGHT));
- dc.SetBackgroundMode(wxSOLID);
-
- dc.DrawText(s, x, rect.y);
- dc.GetTextExtent(s, &width, NULL);
- x += width;
-
- dc.SetBackgroundMode(wxTRANSPARENT);
- dc.SetTextBackground(colBg);
- dc.SetTextForeground(colFg);
- }
-
- // draw the final part
- s = text.c_str() + selEnd;
- if ( !s.empty() )
- {
- dc.DrawText(s, x, rect.y);
- }
- }
-}
-
-// ----------------------------------------------------------------------------
-// wxRenderer: scrollbar geometry
-// ----------------------------------------------------------------------------
-
-/* static */
-void wxRenderer::StandardScrollBarThumbSize(wxCoord length,
- int thumbPos,
- int thumbSize,
- int range,
- wxCoord *thumbStart,
- wxCoord *thumbEnd)
-{
- // the thumb can't be made less than this number of pixels
- static const wxCoord thumbMinWidth = 8; // FIXME: should be configurable
-
- *thumbStart = (length*thumbPos) / range;
- *thumbEnd = (length*(thumbPos + thumbSize)) / range;
-
- if ( *thumbEnd - *thumbStart < thumbMinWidth )
- {
- // adjust the end if possible
- if ( *thumbStart <= length - thumbMinWidth )
- {
- // yes, just make it wider
- *thumbEnd = *thumbStart + thumbMinWidth;
- }
- else // it is at the bottom of the scrollbar
- {
- // so move it a bit up
- *thumbStart = length - thumbMinWidth;
- *thumbEnd = length;
- }
- }
-}
-
-/* static */
-wxRect wxRenderer::StandardGetScrollbarRect(const wxScrollBar *scrollbar,
- wxScrollBar::Element elem,
- int thumbPos,
- const wxSize& sizeArrow)
-{
- if ( thumbPos == -1 )
- {
- thumbPos = scrollbar->GetThumbPosition();
- }
-
- wxSize sizeTotal = scrollbar->GetClientSize();
- wxCoord *start, *width, length, arrow;
- wxRect rect;
- if ( scrollbar->IsVertical() )
- {
- rect.x = 0;
- rect.width = sizeTotal.x;
- length = sizeTotal.y;
- start = &rect.y;
- width = &rect.height;
- arrow = sizeArrow.y;
- }
- else // horizontal
- {
- rect.y = 0;
- rect.height = sizeTotal.y;
- length = sizeTotal.x;
- start = &rect.x;
- width = &rect.width;
- arrow = sizeArrow.x;
- }
-
- switch ( elem )
- {
- case wxScrollBar::Element_Arrow_Line_1:
- *start = 0;
- *width = arrow;
- break;
-
- case wxScrollBar::Element_Arrow_Line_2:
- *start = length - arrow;
- *width = arrow;
- break;
-
- case wxScrollBar::Element_Arrow_Page_1:
- case wxScrollBar::Element_Arrow_Page_2:
- // we don't have them at all
- break;
-
- case wxScrollBar::Element_Thumb:
- case wxScrollBar::Element_Bar_1:
- case wxScrollBar::Element_Bar_2:
- // we need to calculate the thumb position - do it
- {
- length -= 2*arrow;
- wxCoord thumbStart, thumbEnd;
- int range = scrollbar->GetRange();
- if ( !range )
- {
- thumbStart =
- thumbEnd = 0;
- }
- else
- {
- StandardScrollBarThumbSize(length,
- thumbPos,
- scrollbar->GetThumbSize(),
- range,
- &thumbStart,
- &thumbEnd);
- }
-
- if ( elem == wxScrollBar::Element_Thumb )
- {
- *start = thumbStart;
- *width = thumbEnd - thumbStart;
- }
- else if ( elem == wxScrollBar::Element_Bar_1 )
- {
- *start = 0;
- *width = thumbStart;
- }
- else // elem == wxScrollBar::Element_Bar_2
- {
- *start = thumbEnd;
- *width = length - thumbEnd;
- }
-
- // everything is relative to the start of the shaft so far
- *start += arrow;
- }
- break;
-
- case wxScrollBar::Element_Max:
- default:
- wxFAIL_MSG( _T("unknown scrollbar element") );
- }
-
- return rect;
-}
-
-/* static */
-wxCoord wxRenderer::StandardScrollBarSize(const wxScrollBar *scrollbar,
- const wxSize& sizeArrowSB)
-{
- wxCoord sizeArrow, sizeTotal;
- if ( scrollbar->GetWindowStyle() & wxVERTICAL )
- {
- sizeArrow = sizeArrowSB.y;
- sizeTotal = scrollbar->GetSize().y;
- }
- else // horizontal
- {
- sizeArrow = sizeArrowSB.x;
- sizeTotal = scrollbar->GetSize().x;
- }
-
- return sizeTotal - 2*sizeArrow;
-}
-
-/* static */
-wxCoord wxRenderer::StandardScrollbarToPixel(const wxScrollBar *scrollbar,
- int thumbPos,
- const wxSize& sizeArrow)
-{
- int range = scrollbar->GetRange();
- if ( !range )
- {
- // the only valid position anyhow
- return 0;
- }
-
- if ( thumbPos == -1 )
- {
- // by default use the current thumb position
- thumbPos = scrollbar->GetThumbPosition();
- }
-
- return ( thumbPos*StandardScrollBarSize(scrollbar, sizeArrow) ) / range
- + (scrollbar->IsVertical() ? sizeArrow.y : sizeArrow.x);
-}
-
-/* static */
-int wxRenderer::StandardPixelToScrollbar(const wxScrollBar *scrollbar,
- wxCoord coord,
- const wxSize& sizeArrow)
-{
- return ( (coord - (scrollbar->IsVertical() ? sizeArrow.y : sizeArrow.x)) *
- scrollbar->GetRange() ) /
- StandardScrollBarSize(scrollbar, sizeArrow);
-}
-
-/* static */
-wxHitTest wxRenderer::StandardHitTestScrollbar(const wxScrollBar *scrollbar,
- const wxPoint& pt,
- const wxSize& sizeArrowSB)
-{
- // we only need to work with either x or y coord depending on the
- // orientation, choose one (but still check the other one to verify if the
- // mouse is in the window at all)
- wxCoord coord, sizeArrow, sizeTotal;
- wxSize size = scrollbar->GetSize();
- if ( scrollbar->GetWindowStyle() & wxVERTICAL )
- {
- if ( pt.x < 0 || pt.x > size.x )
- return wxHT_NOWHERE;
-
- coord = pt.y;
- sizeArrow = sizeArrowSB.y;
- sizeTotal = size.y;
- }
- else // horizontal
- {
- if ( pt.y < 0 || pt.y > size.y )
- return wxHT_NOWHERE;
-
- coord = pt.x;
- sizeArrow = sizeArrowSB.x;
- sizeTotal = size.x;
- }
-
- // test for the arrows first as it's faster
- if ( coord < 0 || coord > sizeTotal )
- {
- return wxHT_NOWHERE;
- }
- else if ( coord < sizeArrow )
- {
- return wxHT_SCROLLBAR_ARROW_LINE_1;
- }
- else if ( coord > sizeTotal - sizeArrow )
- {
- return wxHT_SCROLLBAR_ARROW_LINE_2;
- }
- else
- {
- // calculate the thumb position in pixels
- sizeTotal -= 2*sizeArrow;
- wxCoord thumbStart, thumbEnd;
- int range = scrollbar->GetRange();
- if ( !range )
- {
- // clicking the scrollbar without range has no effect
- return wxHT_NOWHERE;
- }
- else
- {
- StandardScrollBarThumbSize(sizeTotal,
- scrollbar->GetThumbPosition(),
- scrollbar->GetThumbSize(),
- range,
- &thumbStart,
- &thumbEnd);
- }
-
- // now compare with the thumb position
- coord -= sizeArrow;
- if ( coord < thumbStart )
- return wxHT_SCROLLBAR_BAR_1;
- else if ( coord > thumbEnd )
- return wxHT_SCROLLBAR_BAR_2;
- else
- return wxHT_SCROLLBAR_THUMB;
- }
-}
-
projects / wxWidgets.git / blobdiff