// constants
// ----------------------------------------------------------------------------
+namespace
+{
+
// indices of labels in wxSlider::m_labels
enum
{
SliderLabel_Last
};
-// the gap between the slider and the labels, in pixels
-static const int HGAP = 5;
-
-// ----------------------------------------------------------------------------
-// XTI
-// ----------------------------------------------------------------------------
+// the gaps between the slider and the labels, in pixels
+const int HGAP = 5;
+const int VGAP = 4;
+// the width of the borders including white space
+const int BORDERPAD = 8;
+// these 2 values are arbitrary:
+const int THUMB = 24;
+const int TICK = 8;
-#if wxUSE_EXTENDED_RTTI
-WX_DEFINE_FLAGS( wxSliderStyle )
-
-wxBEGIN_FLAGS( wxSliderStyle )
- // new style border flags, we put them first to
- // use them for streaming out
- wxFLAGS_MEMBER(wxBORDER_SIMPLE)
- wxFLAGS_MEMBER(wxBORDER_SUNKEN)
- wxFLAGS_MEMBER(wxBORDER_DOUBLE)
- wxFLAGS_MEMBER(wxBORDER_RAISED)
- wxFLAGS_MEMBER(wxBORDER_STATIC)
- wxFLAGS_MEMBER(wxBORDER_NONE)
-
- // old style border flags
- wxFLAGS_MEMBER(wxSIMPLE_BORDER)
- wxFLAGS_MEMBER(wxSUNKEN_BORDER)
- wxFLAGS_MEMBER(wxDOUBLE_BORDER)
- wxFLAGS_MEMBER(wxRAISED_BORDER)
- wxFLAGS_MEMBER(wxSTATIC_BORDER)
- wxFLAGS_MEMBER(wxBORDER)
-
- // standard window styles
- wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
- wxFLAGS_MEMBER(wxCLIP_CHILDREN)
- wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
- wxFLAGS_MEMBER(wxWANTS_CHARS)
- wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
- wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
- wxFLAGS_MEMBER(wxVSCROLL)
- wxFLAGS_MEMBER(wxHSCROLL)
-
- wxFLAGS_MEMBER(wxSL_HORIZONTAL)
- wxFLAGS_MEMBER(wxSL_VERTICAL)
- wxFLAGS_MEMBER(wxSL_AUTOTICKS)
- wxFLAGS_MEMBER(wxSL_LABELS)
- wxFLAGS_MEMBER(wxSL_LEFT)
- wxFLAGS_MEMBER(wxSL_TOP)
- wxFLAGS_MEMBER(wxSL_RIGHT)
- wxFLAGS_MEMBER(wxSL_BOTTOM)
- wxFLAGS_MEMBER(wxSL_BOTH)
- wxFLAGS_MEMBER(wxSL_SELRANGE)
- wxFLAGS_MEMBER(wxSL_INVERSE)
-
-wxEND_FLAGS( wxSliderStyle )
-
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxSlider, wxControl,"wx/slider.h")
-
-wxBEGIN_PROPERTIES_TABLE(wxSlider)
- wxEVENT_RANGE_PROPERTY( Scroll , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxScrollEvent )
- wxEVENT_PROPERTY( Updated , wxEVT_COMMAND_SLIDER_UPDATED , wxCommandEvent )
-
- wxPROPERTY( Value , int , SetValue, GetValue , 0, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY( Minimum , int , SetMin, GetMin, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY( Maximum , int , SetMax, GetMax, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY( PageSize , int , SetPageSize, GetLineSize, 1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY( LineSize , int , SetLineSize, GetLineSize, 1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY( ThumbLength , int , SetThumbLength, GetThumbLength, 1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY_FLAGS( WindowStyle , wxSliderStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
-wxEND_PROPERTIES_TABLE()
-
-wxBEGIN_HANDLERS_TABLE(wxSlider)
-wxEND_HANDLERS_TABLE()
-
-wxCONSTRUCTOR_8( wxSlider , wxWindow* , Parent , wxWindowID , Id , int , Value , int , Minimum , int , Maximum , wxPoint , Position , wxSize , Size , long , WindowStyle )
-#else
-IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl)
-#endif
+} // anonymous namespace
// ============================================================================
// wxSlider implementation
m_isDragging = false;
}
-bool
-wxSlider::Create(wxWindow *parent,
- wxWindowID id,
- int value,
- int minValue,
- int maxValue,
- const wxPoint& pos,
- const wxSize& size,
- long style,
- const wxValidator& validator,
- const wxString& name)
+bool wxSlider::Create(wxWindow *parent,
+ wxWindowID id,
+ int value,
+ int minValue,
+ int maxValue,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
{
+ wxCHECK_MSG( minValue < maxValue, false,
+ wxT("Slider minimum must be strictly less than the maximum.") );
+
// our styles are redundant: wxSL_LEFT/RIGHT imply wxSL_VERTICAL and
// wxSL_TOP/BOTTOM imply wxSL_HORIZONTAL, but for backwards compatibility
// reasons we can't really change it, instead try to infer the orientation
};
wxASSERT_MSG( !(style & wxSL_VERTICAL) || !(style & wxSL_HORIZONTAL),
- _T("incompatible slider direction and orientation") );
+ wxT("incompatible slider direction and orientation") );
// initialize everything
m_labels->Set(n, wnd, lblid);
}
-
m_labels->SetFont(GetFont());
}
// and initialize everything
SetRange(minValue, maxValue);
SetValue(value);
- SetPageSize((maxValue - minValue)/10);
+ SetPageSize( wxMax(1, (maxValue - minValue)/10) );
// we need to position the labels correctly if we have them and if
// SetSize() hadn't been called before (when best size was determined by
*y = rect.y;
}
-int wxSlider::GetLabelsSize(int *width) const
+int wxSlider::GetLabelsSize(int *widthMin, int *widthMax) const
{
- int cy;
-
- if ( width )
+ if ( widthMin && widthMax )
{
- // find the max label width
- int wLabelMin, wLabelMax;
- GetTextExtent(Format(m_rangeMin), &wLabelMin, &cy);
- GetTextExtent(Format(m_rangeMax), &wLabelMax, &cy);
+ *widthMin = GetTextExtent(Format(m_rangeMin)).x;
+ *widthMax = GetTextExtent(Format(m_rangeMax)).x;
- *width = wxMax(wLabelMin, wLabelMax);
- }
- else
- {
- cy = GetCharHeight();
+ if ( HasFlag(wxSL_INVERSE) )
+ {
+ wxSwap(*widthMin, *widthMax);
+ }
}
- return EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+ return HasFlag(wxSL_LABELS) ? GetCharHeight() : 0;
}
void wxSlider::DoMoveWindow(int x, int y, int width, int height)
return;
}
+ int minLabelWidth,
+ maxLabelWidth;
+ const int labelHeight = GetLabelsSize(&minLabelWidth, &maxLabelWidth);
+ const int longestLabelWidth = wxMax(minLabelWidth, maxLabelWidth);
+ if ( !HasFlag(wxSL_MIN_MAX_LABELS) )
+ {
+ minLabelWidth =
+ maxLabelWidth = 0;
+ }
+
+ int tickOffset = 0;
+ if ( HasFlag(wxSL_TICKS))
+ tickOffset = TICK;
+ if ( HasFlag(wxSL_BOTH))
+ tickOffset *= 2;
+
// be careful to position the slider itself after moving the labels as
// otherwise our GetBoundingBox(), which is called from WM_SIZE handler,
// would return a wrong result and wrong size would be cached internally
if ( HasFlag(wxSL_VERTICAL) )
{
- int wLabel;
- int hLabel = GetLabelsSize(&wLabel);
+ int labelOffset = 0;
+ int holdTopX;
+ int holdBottomX;
+ int xLabel = (wxMax((THUMB + (BORDERPAD * 2)), longestLabelWidth) / 2) -
+ (longestLabelWidth / 2) + x;
+ if ( HasFlag(wxSL_LEFT) )
+ {
+ holdTopX = xLabel;
+ holdBottomX = xLabel - (abs(maxLabelWidth - minLabelWidth) / 2);
+ }
+ else // wxSL_RIGHT
+ {
+ holdTopX = xLabel + longestLabelWidth + (abs(maxLabelWidth - minLabelWidth) / 2);
+ holdBottomX = xLabel + longestLabelWidth;
- int xLabel = HasFlag(wxSL_LEFT) ? x + width - wLabel : x;
+ labelOffset = longestLabelWidth + HGAP;
+ }
- // position all labels: min at the top, value in the middle and max at
- // the bottom
- DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
- xLabel, y, wLabel, hLabel);
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+ {
+ if ( HasFlag(wxSL_INVERSE) )
+ {
+ wxSwap(holdTopX, holdBottomX);
+ }
- DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
- xLabel, y + (height - hLabel)/2, wLabel, hLabel);
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
+ holdTopX,
+ y,
+ minLabelWidth, labelHeight);
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
+ holdBottomX,
+ y + height - labelHeight,
+ maxLabelWidth, labelHeight);
+ }
- DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
- xLabel, y + height - hLabel, wLabel, hLabel);
+ if ( HasFlag(wxSL_VALUE_LABEL) )
+ {
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
+ x + ( HasFlag(wxSL_LEFT) ? THUMB + tickOffset + HGAP : 0 ),
+ y + (height - labelHeight)/2,
+ longestLabelWidth, labelHeight);
+ }
// position the slider itself along the left/right edge
- wxSliderBase::DoMoveWindow(HasFlag(wxSL_LEFT) ? x : x + wLabel + HGAP,
- y + hLabel/2,
- width - wLabel - HGAP,
- height - hLabel);
+ wxSliderBase::DoMoveWindow(
+ x + labelOffset,
+ y + labelHeight,
+ THUMB + tickOffset + HGAP,
+ height - (labelHeight * 2));
}
else // horizontal
{
- int wLabel;
- int hLabel = GetLabelsSize(&wLabel);
+ int yLabelMinMax =
+ (y + ((THUMB + tickOffset) / 2)) - (labelHeight / 2);
+ int xLabelValue =
+ x + minLabelWidth +
+ ((width - (minLabelWidth + maxLabelWidth)) / 2) -
+ (longestLabelWidth / 2);
- int yLabel = HasFlag(wxSL_TOP) ? y + height - hLabel : y;
+ int ySlider = y;
- // position all labels: min on the left, value in the middle and max to
- // the right
- DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
- x, yLabel, wLabel, hLabel);
+ if ( HasFlag(wxSL_VALUE_LABEL) )
+ {
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
+ xLabelValue,
+ y + (HasFlag(wxSL_BOTTOM) ? 0 : THUMB + tickOffset),
+ longestLabelWidth, labelHeight);
- DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
- x + (width - wLabel)/2, yLabel, wLabel, hLabel);
+ if ( HasFlag(wxSL_BOTTOM) )
+ {
+ ySlider += labelHeight;
+ yLabelMinMax += labelHeight;
+ }
+ }
- DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
- x + width - wLabel, yLabel, wLabel, hLabel);
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+ {
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
+ x,
+ yLabelMinMax,
+ minLabelWidth, labelHeight);
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
+ x + width - maxLabelWidth,
+ yLabelMinMax,
+ maxLabelWidth, labelHeight);
+ }
// position the slider itself along the top/bottom edge
- wxSliderBase::DoMoveWindow(x,
- HasFlag(wxSL_TOP) ? y : y + hLabel,
- width,
- height - hLabel);
+ wxSliderBase::DoMoveWindow(
+ x + minLabelWidth + VGAP,
+ ySlider,
+ width - (minLabelWidth + maxLabelWidth + (VGAP*2)),
+ THUMB + tickOffset);
}
}
wxSize wxSlider::DoGetBestSize() const
{
- // these values are arbitrary
+ // this value is arbitrary:
static const int length = 100;
- static const int thumb = 24;
- static const int ticks = 8;
int *width;
wxSize size;
if ( HasFlag(wxSL_VERTICAL) )
{
- size.x = thumb;
+ size.x = THUMB;
size.y = length;
width = &size.x;
if ( m_labels )
{
- int wLabel;
- int hLabel = GetLabelsSize(&wLabel);
+ int widthMin,
+ widthMax;
+ int hLabel = GetLabelsSize(&widthMin, &widthMax);
// account for the labels
- size.x += HGAP + wLabel;
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+ size.x += HGAP + wxMax(widthMin, widthMax);
// labels are indented relative to the slider itself
size.y += hLabel;
else // horizontal
{
size.x = length;
- size.y = thumb;
+ size.y = THUMB;
width = &size.y;
if ( m_labels )
{
- // labels add extra height
- size.y += GetLabelsSize();
+ int labelSize = GetLabelsSize();
+
+ // Min/max labels are compensated by the ticks so we don't need
+ // extra space for them if we're also showing ticks.
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) && !HasFlag(wxSL_TICKS) )
+ size.y += labelSize;
+
+ // The value label is always on top of the control and so does need
+ // extra space in any case.
+ if ( HasFlag(wxSL_VALUE_LABEL) )
+ size.y += labelSize;
}
}
// need extra space to show ticks
if ( HasFlag(wxSL_TICKS) )
{
- *width += ticks;
-
+ *width += TICK;
// and maybe twice as much if we show them on both sides
if ( HasFlag(wxSL_BOTH) )
- *width += ticks;
+ *width += TICK;
}
-
return size;
}
void wxSlider::SetRange(int minValue, int maxValue)
{
+ // Remember the old logical value if we need to update the physical control
+ // value after changing its range in wxSL_INVERSE case (and avoid an
+ // unnecessary call to GetValue() otherwise as it's just not needed).
+ const int valueOld = HasFlag(wxSL_INVERSE) ? GetValue() : 0;
+
m_rangeMin = minValue;
m_rangeMax = maxValue;
::SetWindowText((*m_labels)[SliderLabel_Max],
Format(ValueInvertOrNot(m_rangeMax)).wx_str());
}
+
+ // When emulating wxSL_INVERSE style in wxWidgets, we need to update the
+ // value after changing the range to ensure that the value seen by the user
+ // code, i.e. the one returned by GetValue(), does not change.
+ if ( HasFlag(wxSL_INVERSE) )
+ {
+ ::SendMessage(GetHwnd(), TBM_SETPOS, TRUE, ValueInvertOrNot(valueOld));
+ }
}
-void wxSlider::SetTickFreq(int n, int pos)
+void wxSlider::DoSetTickFreq(int n)
{
m_tickFreq = n;
- ::SendMessage( GetHwnd(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
+ ::SendMessage( GetHwnd(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) 0 );
}
void wxSlider::SetPageSize(int pageSize)
projects / wxWidgets.git / blobdiff