+// This flag indicates that combo box style drop button is to be created
+#define wxBU_COMBO 0x0400
+
+
+class wxDropdownButton : public wxBitmapButton
+{
+public:
+ wxDropdownButton() { Init(); }
+ wxDropdownButton(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style=0,
+ const wxValidator& validator = wxDefaultValidator);
+
+ bool Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = 0,
+ const wxValidator& validator = wxDefaultValidator);
+
+protected:
+ virtual void DoMoveWindow(int x, int y, int w, int h);
+
+ void OnSize(wxSizeEvent& event);
+ void OnMouseEnter(wxMouseEvent& event);
+ void OnMouseLeave(wxMouseEvent& event);
+
+ void RecreateBitmaps(int w, int h);
+
+ wxBitmap m_bmpNormal;
+ wxBitmap m_bmpHot;
+
+ int m_borderX, m_borderY;
+
+ // True if DrawDropArrow should be used instead of DrawComboBoxDropButton
+ bool m_useDropArrow;
+
+private:
+
+ void Init()
+ {
+ m_borderX = -1;
+ m_borderY = -1;
+ }
+
+ DECLARE_EVENT_TABLE()
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxDropdownButton)
+};
+
+
+// Below, macro DROPBUT_USEDROPARROW should return false when
+// DrawComboBoxDropButton is to be used to render the entire button.
+// COMBOST is non-zero if wxBU_COMBO was set.
+
+#if defined(__WXMSW__)
+
+ #define DROPBUT_USEDROPARROW(COMBOST) (COMBOST?false:true)
+ #define DROPBUT_DEFAULT_WIDTH 17
+
+#elif defined(__WXGTK__)
+
+ #define DROPBUT_USEDROPARROW(COMBOST) true
+ #define DROPBUT_DEFAULT_WIDTH 19
+
+#else
+
+ #define DROPBUT_USEDROPARROW(COMBOST) true
+ #define DROPBUT_DEFAULT_WIDTH 17
+
+#endif
+
+
+IMPLEMENT_DYNAMIC_CLASS(wxDropdownButton, wxBitmapButton)
+
+
+BEGIN_EVENT_TABLE(wxDropdownButton,wxBitmapButton)
+ EVT_ENTER_WINDOW(wxDropdownButton::OnMouseEnter)
+ EVT_LEAVE_WINDOW(wxDropdownButton::OnMouseLeave)
+ EVT_SIZE(wxDropdownButton::OnSize)
+END_EVENT_TABLE()
+
+
+wxDropdownButton::wxDropdownButton(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator)
+{
+ Init();
+ Create(parent, id, pos, size, style, validator);
+}
+
+
+bool wxDropdownButton::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator)
+{
+ m_marginX = 0;
+ m_marginY = 0;
+
+ m_useDropArrow = DROPBUT_USEDROPARROW(style & wxBU_COMBO);
+
+ wxBitmap chkBmp(15,15); // arbitrary
+ if ( !wxBitmapButton::Create(parent, id, chkBmp,
+ pos, wxDefaultSize,
+ style | (m_useDropArrow ? wxBU_AUTODRAW : wxNO_BORDER),
+ validator) )
+ return false;
+
+ const wxSize sz = GetSize();
+ int w = chkBmp.GetWidth(),
+ h = chkBmp.GetHeight();
+ m_borderX = sz.x - m_marginX - w;
+ m_borderY = sz.y - m_marginY - h;
+
+ DoMoveWindow(pos.x, pos.y, size.x, size.y);
+
+ return true;
+}
+
+
+void wxDropdownButton::RecreateBitmaps(int w, int h)
+{
+ wxMemoryDC dc;
+
+ int borderX = m_marginX + m_borderX;
+ int borderY = m_marginY + m_borderY;
+ int bw = w - borderX;
+ int bh = h - borderY;
+
+ wxBitmap bmp(bw, bh);
+ wxBitmap bmpSel(bw, bh);
+ wxRect r(0,0,w,h);
+
+ wxRendererNative& renderer = wxRendererNative::Get();
+
+ dc.SelectObject(bmp);
+
+ if ( m_useDropArrow )
+ {
+ // Use DrawDropArrow on transparent background.
+
+ wxColour magic(255,0,255);
+ wxBrush magicBrush(magic);
+ r.x = -(borderX/2);
+ r.y = -(borderY/2);
+
+ dc.SetBrush( magicBrush );
+ dc.SetPen( *wxTRANSPARENT_PEN );
+ dc.DrawRectangle(0,0,bw,bh);
+ renderer.DrawDropArrow(this, dc, r);
+ dc.SelectObject( wxNullBitmap );
+ wxMask *mask = new wxMask( bmp, magic );
+ bmp.SetMask( mask );
+
+ dc.SelectObject(bmpSel);
+
+ dc.SetBrush( magicBrush );
+ dc.SetPen( *wxTRANSPARENT_PEN );
+ dc.DrawRectangle(0,0,bw,bh);
+ renderer.DrawDropArrow(this, dc, r, wxCONTROL_PRESSED);
+ dc.SelectObject( wxNullBitmap );
+ mask = new wxMask( bmpSel, magic );
+ bmpSel.SetMask( mask );
+ }
+ else
+ {
+ // Use DrawComboBoxDropButton for the entire button
+ // (also render extra "hot" button state).
+
+ renderer.DrawComboBoxDropButton(this, dc, r);
+
+ dc.SelectObject(bmpSel);
+
+ renderer.DrawComboBoxDropButton(this, dc, r, wxCONTROL_PRESSED);
+
+ wxBitmap bmpHot(bw,bh);
+ dc.SelectObject(bmpHot);
+ renderer.DrawComboBoxDropButton(this, dc, r, wxCONTROL_CURRENT);
+
+ m_bmpNormal = bmp;
+ m_bmpHot = bmpHot;
+ }
+
+ SetBitmapLabel(bmp);
+ SetBitmapSelected(bmpSel);
+}
+
+
+void wxDropdownButton::DoMoveWindow(int x, int y, int w, int h)
+{
+ if (w < 0)
+ w = DROPBUT_DEFAULT_WIDTH;
+
+ wxBitmapButton::DoMoveWindow(x, y, w, h);
+}
+
+
+void wxDropdownButton::OnSize(wxSizeEvent& event)
+{
+ if ( m_borderX >= 0 && m_borderY >= 0 )
+ {
+ int w, h;
+ GetClientSize(&w,&h);
+
+ if ( w > 1 && h > 1 )
+ RecreateBitmaps(w,h);
+ }
+ event.Skip();
+}
+
+
+void wxDropdownButton::OnMouseEnter(wxMouseEvent& event)
+{
+ if ( !m_useDropArrow )
+ SetBitmapLabel(m_bmpHot);
+
+ event.Skip();
+}
+
+
+void wxDropdownButton::OnMouseLeave(wxMouseEvent& event)
+{
+ if ( !m_useDropArrow )
+ SetBitmapLabel(m_bmpNormal);
+
+ event.Skip();
+}
+
+
projects / wxWidgets.git / blobdiff