Draw a button like the one used by \helpref{wxComboBox}{wxcombobox} to show a
drop down window. The usual appearance is a downwards pointing arrow.
-\arg{flags} may have the \texttt{wxCONTROL\_PRESSED} bit set.
+\arg{flags} may have the \texttt{wxCONTROL\_PRESSED} or \texttt{wxCONTROL\_CURRENT} bit set.
+
+
+\membersection{wxRendererNative::DrawDropArrow}\label{wxrenderernativedrawdroparrow}
+
+\func{void}{DrawDropArrow}{\param{wxWindow *}{win}, \param{wxDC\& }{dc}, \param{const wxRect\& }{rect}, \param{int }{flags}}
+
+Draw a drop down arrow that is suitable for use outside a combo box. Arrow will have
+transparent background.
+
+\arg{rect} is not entirely filled by the arrow. Instead, you should use bounding
+rectangle of a drop down button which arrow matches the size you need.
+\arg{flags} may have the \texttt{wxCONTROL\_PRESSED} or \texttt{wxCONTROL\_CURRENT} bit set.
\membersection{wxRendererNative::DrawHeaderButton}\label{wxrenderernativedrawheaderbutton}
// draw a combobox dropdown button
//
- // flags may only use wxCONTROL_PRESSED
+ // flags may use wxCONTROL_PRESSED and wxCONTROL_CURRENT
virtual void DrawComboBoxDropButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0) = 0;
+ // draw a dropdown arrow
+ //
+ // flags may use wxCONTROL_PRESSED and wxCONTROL_CURRENT
+ virtual void DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags = 0) = 0;
// geometry functions
// ------------------
int flags = 0)
{ m_rendererNative.DrawComboBoxDropButton(win, dc, rect, flags); }
+ virtual void DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags = 0)
+ { m_rendererNative.DrawDropArrow(win, dc, rect, flags); }
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win)
{ return m_rendererNative.GetSplitterParams(win); }
const wxRect& rect,
int flags = 0);
+ virtual void DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags = 0);
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);
}
}
+// ----------------------------------------------------------------------------
+// button drawing
+// ----------------------------------------------------------------------------
+
void
wxRendererGeneric::DrawComboBoxDropButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int WXUNUSED(flags))
{
- dc.SetBrush(wxBrush(win->GetBackgroundColour()));
- dc.SetPen(wxPen(win->GetBackgroundColour()));
- dc.DrawRectangle(rect);
+ // FIXME: Is it worth to do a better implementation?
+ // Generic wxComboDropButton should be drawn using
+ // combination of wxBitmapButton and DrawDropArrow
+ // anyway.
+ DrawDropArrow(win,dc,rect);
+}
+
+void
+wxRendererGeneric::DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int WXUNUSED(flags))
+{
+ // This generic implementation should be good
+ // enough for Windows platforms (including XP).
+
+ int arrowHalf = rect.width/5;
+ int rectMid = rect.width / 2;
+ int arrowTopY = (rect.height/2) - (arrowHalf/2);
+
+ // This should always result in arrow with odd width.
wxPoint pt[] =
{
- wxPoint(0,0),
- wxPoint(rect.width, 0),
- wxPoint(rect.width/2, rect.height - 2)
+ wxPoint(rectMid - arrowHalf, arrowTopY),
+ wxPoint(rectMid + arrowHalf, arrowTopY),
+ wxPoint(rectMid, arrowTopY + arrowHalf)
};
dc.SetBrush(wxBrush(win->GetForegroundColour()));
dc.SetPen(wxPen(win->GetForegroundColour()));
dc.DrawPolygon(WXSIZEOF(pt), pt, rect.x, rect.y);
}
-
// ----------------------------------------------------------------------------
// A module to allow cleanup of generic renderer.
// ----------------------------------------------------------------------------
const wxRect& rect,
int flags = 0);
+ virtual void DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags = 0);
+
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);
private:
#endif // GTK+ 2.x/1.x
}
-void wxRendererGTK::DrawComboBoxDropButton(wxWindow *win,
- wxDC& dc,
- const wxRect& rect,
- int flags)
+void
+wxRendererGTK::DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags)
{
GtkWidget *button = GetButtonWidget();
- // device context must inherit from wxWindowDC
- // (so it must be wxClientDC, wxMemoryDC or wxPaintDC)
+ // If we give GTK_PIZZA(win->m_wxwindow)->bin_window as
+ // a window for gtk_paint_xxx function, then it won't
+ // work for wxMemoryDC. So that is why we assume wxDC
+ // is wxWindowDC (wxClientDC, wxMemoryDC and wxPaintDC
+ // are derived from it) and use its m_window.
wxWindowDC& wdc = (wxWindowDC&)dc;
- // only doing debug-time checking here (it should probably be enough)
+ // only doing debug-time checking here (it should
+ // probably be enough)
wxASSERT ( wdc.IsKindOf(CLASSINFO(wxWindowDC)) );
+ // draw arrow so that there is even space horizontally
+ // on both sides
+ int arrowX = rect.width/4 + 1;
+ int arrowWidth = rect.width - (arrowX*2);
+
+ // scale arrow's height accoording to the width
+ int arrowHeight = rect.width/3;
+ int arrowY = (rect.height-arrowHeight)/2 +
+ ((rect.height-arrowHeight) & 1);
+
GtkStateType state;
if ( flags & wxCONTROL_CURRENT )
"arrow",
GTK_ARROW_DOWN,
FALSE,
- rect.x + 1, rect.y + 1, rect.width - 2, rect.height - 2
+ rect.x + arrowX,
+ rect.y + arrowY,
+ arrowWidth,
+ arrowHeight
);
}
+void
+wxRendererGTK::DrawComboBoxDropButton(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags)
+{
+ GtkWidget *button = GetButtonWidget();
+
+ // for reason why we do this, see DrawDropArrow
+ wxWindowDC& wdc = (wxWindowDC&)dc;
+ wxASSERT ( wdc.IsKindOf(CLASSINFO(wxWindowDC)) );
+
+ // draw button
+ GtkStateType state;
+
+ if ( flags & wxCONTROL_CURRENT )
+ state = GTK_STATE_PRELIGHT;
+ else if ( flags & wxCONTROL_DISABLED )
+ state = GTK_STATE_INSENSITIVE;
+ else
+ state = GTK_STATE_NORMAL;
+
+ gtk_paint_box
+ (
+ button->style,
+ wdc.m_window,
+ state,
+ flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
+ NULL,
+ button,
+ "button",
+ rect.x, rect.y, rect.width, rect.height
+ );
+
+ // draw arrow on button
+ DrawDropArrow(win,dc,rect,flags);
+
+}
+
const wxRect& rect,
int flags = 0);
+ virtual void DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags = 0);
+
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);
private:
#endif // GTK+ 2.x/1.x
}
-void wxRendererGTK::DrawComboBoxDropButton(wxWindow *win,
- wxDC& dc,
- const wxRect& rect,
- int flags)
+void
+wxRendererGTK::DrawDropArrow(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags)
{
GtkWidget *button = GetButtonWidget();
- // device context must inherit from wxWindowDC
- // (so it must be wxClientDC, wxMemoryDC or wxPaintDC)
+ // If we give GTK_PIZZA(win->m_wxwindow)->bin_window as
+ // a window for gtk_paint_xxx function, then it won't
+ // work for wxMemoryDC. So that is why we assume wxDC
+ // is wxWindowDC (wxClientDC, wxMemoryDC and wxPaintDC
+ // are derived from it) and use its m_window.
wxWindowDC& wdc = (wxWindowDC&)dc;
- // only doing debug-time checking here (it should probably be enough)
+ // only doing debug-time checking here (it should
+ // probably be enough)
wxASSERT ( wdc.IsKindOf(CLASSINFO(wxWindowDC)) );
+ // draw arrow so that there is even space horizontally
+ // on both sides
+ int arrowX = rect.width/4 + 1;
+ int arrowWidth = rect.width - (arrowX*2);
+
+ // scale arrow's height accoording to the width
+ int arrowHeight = rect.width/3;
+ int arrowY = (rect.height-arrowHeight)/2 +
+ ((rect.height-arrowHeight) & 1);
+
GtkStateType state;
if ( flags & wxCONTROL_CURRENT )
"arrow",
GTK_ARROW_DOWN,
FALSE,
- rect.x + 1, rect.y + 1, rect.width - 2, rect.height - 2
+ rect.x + arrowX,
+ rect.y + arrowY,
+ arrowWidth,
+ arrowHeight
);
}
+void
+wxRendererGTK::DrawComboBoxDropButton(wxWindow *win,
+ wxDC& dc,
+ const wxRect& rect,
+ int flags)
+{
+ GtkWidget *button = GetButtonWidget();
+
+ // for reason why we do this, see DrawDropArrow
+ wxWindowDC& wdc = (wxWindowDC&)dc;
+ wxASSERT ( wdc.IsKindOf(CLASSINFO(wxWindowDC)) );
+
+ // draw button
+ GtkStateType state;
+
+ if ( flags & wxCONTROL_CURRENT )
+ state = GTK_STATE_PRELIGHT;
+ else if ( flags & wxCONTROL_DISABLED )
+ state = GTK_STATE_INSENSITIVE;
+ else
+ state = GTK_STATE_NORMAL;
+
+ gtk_paint_box
+ (
+ button->style,
+ wdc.m_window,
+ state,
+ flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
+ NULL,
+ button,
+ "button",
+ rect.x, rect.y, rect.width, rect.height
+ );
+
+ // draw arrow on button
+ DrawDropArrow(win,dc,rect,flags);
+
+}
+
projects / wxWidgets.git / commitdiff
