]> git.saurik.com Git - wxWidgets.git/blobdiff - src/univ/ctrlrend.cpp
make renderer independent of windowing system
[wxWidgets.git] / src / univ / ctrlrend.cpp
index d9ca852deee185a76cf98f99a71091394b74fea8..765144be014ffbd6a14e0d6e0bf154c8d6f6cd7e 100644 (file)
@@ -1,12 +1,12 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        univ/ctrlrend.cpp
+// Name:        src/univ/ctrlrend.cpp
 // Purpose:     wxControlRenderer implementation
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     15.08.00
 // RCS-ID:      $Id$
 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ===========================================================================
 // headers
 // ---------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "renderer.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
     #include "wx/listbox.h"
     #include "wx/scrolbar.h"
     #include "wx/dc.h"
+    #include "wx/log.h"
+    #include "wx/gauge.h"
+    #include "wx/image.h"
 #endif // WX_PRECOMP
 
-#include "wx/image.h"
-#include "wx/log.h"
-
 #include "wx/univ/theme.h"
 #include "wx/univ/renderer.h"
 #include "wx/univ/colschem.h"
 
-#if wxUSE_GAUGE
-#include "wx/gauge.h"
-#endif
-
 // ============================================================================
 // implementation
 // ============================================================================
 
-// ----------------------------------------------------------------------------
-// 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;
-    }
-}
-
 wxRenderer::~wxRenderer()
 {
 }
@@ -506,11 +158,13 @@ void wxControlRenderer::DrawBitmap(wxDC &dc,
             }
         }
     }
+#if wxUSE_IMAGE
     else if ( stretch & wxEXPAND )
     {
         // stretch bitmap to fill the entire control
         bmp = wxBitmap(wxImage(bmp.ConvertToImage()).Scale(rect.width, rect.height));
     }
+#endif // wxUSE_IMAGE
     else // not stretched, not tiled
     {
         if ( alignment & wxALIGN_RIGHT )
@@ -541,9 +195,11 @@ void wxControlRenderer::DrawBitmap(wxDC &dc,
     }
 
     // do draw it
-    dc.DrawBitmap(bmp, x, y, TRUE /* use mask */);
+    dc.DrawBitmap(bmp, x, y, true /* use mask */);
 }
 
+#if wxUSE_SCROLLBAR
+
 void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
                                       int WXUNUSED(thumbPosOld))
 {
@@ -561,7 +217,7 @@ void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
                    rectUpdate.GetBottom());
 
 #if 0 //def WXDEBUG_SCROLLBAR
-        static bool s_refreshDebug = FALSE;
+        static bool s_refreshDebug = false;
         if ( s_refreshDebug )
         {
             wxClientDC dc(wxConstCast(scrollbar, wxScrollBar));
@@ -587,7 +243,7 @@ void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
         wxScrollBar::Element elem =
             (wxScrollBar::Element)(wxScrollBar::Element_Bar_1 + nBar);
 
-        wxRect rectBar = m_renderer->GetScrollbarRect(scrollbar, elem);
+        wxRect rectBar = scrollbar->GetScrollbarRect(elem);
 
         if ( rgnUpdate.Contains(rectBar) )
         {
@@ -612,7 +268,7 @@ void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
         wxScrollBar::Element elem =
             (wxScrollBar::Element)(wxScrollBar::Element_Arrow_Line_1 + nArrow);
 
-        wxRect rectArrow = m_renderer->GetScrollbarRect(scrollbar, elem);
+        wxRect rectArrow = scrollbar->GetScrollbarRect(elem);
         if ( rgnUpdate.Contains(rectArrow) )
         {
             wxLogTrace(_T("scrollbar"),
@@ -628,7 +284,7 @@ void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
                 (wxScrollArrows::Arrow)nArrow,
                 m_dc,
                 rectArrow,
-                TRUE // draw a scrollbar arrow, not just an arrow
+                true // draw a scrollbar arrow, not just an arrow
             );
         }
     }
@@ -637,7 +293,7 @@ void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
 
     // and the thumb
     wxScrollBar::Element elem = wxScrollBar::Element_Thumb;
-    wxRect rectThumb = m_renderer->GetScrollbarRect(scrollbar, elem);
+    wxRect rectThumb = scrollbar->GetScrollbarRect(elem);
     if ( rectThumb.width && rectThumb.height && rgnUpdate.Contains(rectThumb) )
     {
         wxLogTrace(_T("scrollbar"),
@@ -654,6 +310,8 @@ void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar,
     }
 }
 
+#endif // wxUSE_SCROLLBAR
+
 void wxControlRenderer::DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 {
     wxASSERT_MSG( x1 == x2 || y1 == y2,
@@ -676,10 +334,11 @@ void wxControlRenderer::DrawItems(const wxListBox *lbox,
 void wxControlRenderer::DoDrawItems(const wxListBox *lbox,
                                     size_t itemFirst, size_t itemLast,
 #if wxUSE_CHECKLISTBOX
-                                    bool isCheckLbox)
+                                    bool isCheckLbox
 #else
-                                    bool WXUNUSED(isCheckLbox))
+                                    bool WXUNUSED(isCheckLbox)
 #endif
+                                    )
 {
     // prepare for the drawing: calc the initial position
     wxCoord lineHeight = lbox->GetLineHeight();
@@ -750,7 +409,7 @@ void wxControlRenderer::DoDrawItems(const wxListBox *lbox,
 void wxControlRenderer::DrawCheckItems(const wxCheckListBox *lbox,
                                        size_t itemFirst, size_t itemLast)
 {
-    DoDrawItems(lbox, itemFirst, itemLast, TRUE);
+    DoDrawItems(lbox, itemFirst, itemLast, true);
 }
 
 #endif // wxUSE_CHECKLISTBOX
@@ -813,7 +472,8 @@ void wxControlRenderer::DrawProgressBar(const wxGauge *gauge)
         int steps = ((lenTotal + step - 1) * pos) / (max * step);
 
         // calc the coords of one small rect
-        wxCoord *px, dx, dy;
+        wxCoord *px;
+        wxCoord dx, dy;
         if ( gauge->IsVertical() )
         {
             // draw from bottom to top: so first set y to the bottom
@@ -870,4 +530,3 @@ void wxControlRenderer::DrawProgressBar(const wxGauge *gauge)
 }
 
 #endif // wxUSE_GAUGE
-