+
+void
+wxRendererGeneric::DrawHeaderButtonContents(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags,
+ wxHeaderSortIconType sortArrow,
+ wxHeaderButtonParams* params)
+{
+ // Mark this item as selected. For the generic version we'll just draw an
+ // underline
+ if ( flags & wxCONTROL_SELECTED )
+ {
+ // draw a line at the bottom of the header button, overlaying the
+ // native hot-tracking line (on XP)
+ const int penwidth = 3;
+ int y = rect.y + rect.height + 1 - penwidth;
+ wxColour c = (params && params->m_selectionColour.Ok()) ?
+ params->m_selectionColour : wxColour(0x66, 0x66, 0x66);
+ wxPen pen(c, penwidth);
+ pen.SetCap(wxCAP_BUTT);
+ dc.SetPen(pen);
+ dc.DrawLine(rect.x, y, rect.x + rect.width, y);
+ }
+
+ // Draw an up or down arrow
+ int arrowSpace = 0;
+ if (sortArrow != wxHDR_SORT_ICON_NONE )
+ {
+ wxRect ar = rect;
+
+ // make a rect for the arrow
+ ar.height = 4;
+ ar.width = 8;
+ ar.y += (rect.height - ar.height)/2;
+ ar.x = ar.x + rect.width - 3*ar.width/2;
+ arrowSpace = 3*ar.width/2; // space to preserve when drawing the label
+
+ wxPoint triPt[3];
+ if ( sortArrow & wxHDR_SORT_ICON_UP )
+ {
+ triPt[0].x = ar.width / 2;
+ triPt[0].y = 0;
+ triPt[1].x = ar.width;
+ triPt[1].y = ar.height;
+ triPt[2].x = 0;
+ triPt[2].y = ar.height;
+ }
+ else
+ {
+ triPt[0].x = 0;
+ triPt[0].y = 0;
+ triPt[1].x = ar.width;
+ triPt[1].y = 0;
+ triPt[2].x = ar.width / 2;
+ triPt[2].y = ar.height;
+ }
+
+ wxColour c = (params && params->m_arrowColour.Ok()) ?
+ params->m_arrowColour : wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW);
+ dc.SetPen(wxPen(c));
+ dc.SetBrush(wxBrush(c));
+ dc.DrawPolygon( 3, triPt, ar.x, ar.y);
+ }
+
+ const int margin = 5; // number of pixels to reserve on either side of the label
+ int bmpWidth = 0;
+ int txtEnd = 0;
+
+ if ( params && params->m_labelBitmap.Ok() )
+ bmpWidth = params->m_labelBitmap.GetWidth() + 2;
+
+ // Draw a label if one is given
+ if ( params && !params->m_labelText.empty() )
+ {
+ wxFont font = params->m_labelFont.Ok() ?
+ params->m_labelFont : win->GetFont();
+ wxColour clr = params->m_labelColour.Ok() ?
+ params->m_labelColour : win->GetForegroundColour();
+
+ wxString label( params->m_labelText );
+
+ dc.SetFont(font);
+ dc.SetTextForeground(clr);
+ dc.SetBackgroundMode(wxTRANSPARENT);
+
+ int tw, th, td, x, y;
+ dc.GetTextExtent( label, &tw, &th, &td);
+ y = rect.y + wxMax(0, (rect.height - (th+td)) / 2);
+
+ // truncate and add an ellipsis (...) if the text is too wide.
+ int targetWidth = rect.width - arrowSpace - bmpWidth - 2*margin;
+ if ( tw > targetWidth )
+ {
+ int ellipsisWidth;
+ dc.GetTextExtent( wxT("..."), &ellipsisWidth, NULL);
+ do {
+ label.Truncate( label.length() - 1 );
+ dc.GetTextExtent( label, &tw, &th);
+ } while (tw + ellipsisWidth > targetWidth && label.length() );
+ label.append( wxT("...") );
+ tw += ellipsisWidth;
+ }
+
+ switch (params->m_labelAlignment)
+ {
+ default:
+ case wxALIGN_LEFT:
+ x = rect.x + margin;
+ break;
+ case wxALIGN_CENTER:
+ x = rect.x + wxMax(0, (rect.width - arrowSpace - tw - bmpWidth)/2);
+ break;
+ case wxALIGN_RIGHT:
+ x = rect.x + wxMax(0, rect.width - arrowSpace - margin - tw - bmpWidth);
+ break;
+ }
+
+ dc.DrawText(label, x, y);
+ txtEnd = x + tw + 2;
+ }
+
+ // draw the bitmap if there is one
+ if ( params && params->m_labelBitmap.Ok() )
+ {
+ int w, h, x, y;
+ w = params->m_labelBitmap.GetWidth();
+ h = params->m_labelBitmap.GetHeight();
+
+ y = rect.y + wxMax(1, (rect.height - h) / 2);
+
+ // if there is a text label, then put the bitmap at the end of the label
+ if ( txtEnd != 0 )
+ {
+ x = txtEnd;
+ }
+ // otherwise use the alignment flags
+ else
+ {
+ switch (params->m_labelAlignment)
+ {
+ default:
+ case wxALIGN_LEFT:
+ x = rect.x + margin;
+ break;
+ case wxALIGN_CENTER:
+ x = rect.x + wxMax(1, (rect.width - arrowSpace - w)/2);
+ break;
+ case wxALIGN_RIGHT:
+ x = rect.x + wxMax(1, rect.width - arrowSpace - margin - w);
+ break;
+ }
+ }
+ dc.DrawBitmap(params->m_labelBitmap, x, y, true);
+ }
+}
+
+
+int wxRendererGeneric::GetHeaderButtonHeight(wxWindow *win)
+{
+ // Copied and adapted from src/generic/listctrl.cpp
+ const int HEADER_OFFSET_Y = 1;
+ const int EXTRA_HEIGHT = 4;
+
+ int w=0, h=14, d=0;
+ if (win)
+ win->GetTextExtent(wxT("Hg"), &w, &h, &d);
+
+ return h + d + 2 * HEADER_OFFSET_Y + EXTRA_HEIGHT;
+}
+
+
projects / wxWidgets.git / blobdiff