#include "../sample.xpm"
#endif
+#include <math.h>
+
class MyChild;
class MyCanvas;
MyCanvas::MyCanvas(MyChild *parent, const wxPoint& pos, const wxSize& size)
: wxScrolledWindow(parent, wxID_ANY, pos, size, wxSUNKEN_BORDER|wxVSCROLL|wxHSCROLL)
{
- SetBackgroundColour(wxColour(wxT("WHITE")));
+ SetBackgroundColour(*wxWHITE);
m_child = parent;
- m_index = m_child->GetFrame()->GetCountOfChildren() % 7;
+ m_index = m_child->GetFrame()->GetCountOfChildren() % 9;
}
// Define the repainting behaviour
#endif // wxUSE_STATUSBAR
break;
+ case 7:
+ dc.SetTextForeground(wxT("RED"));
+ dc.DrawText(wxT("Red = Clipping Off"), 30, 5);
+ dc.SetTextForeground(wxT("GREEN"));
+ dc.DrawText(wxT("Green = Clipping On"), 30, 25);
+
+ dc.SetTextForeground(wxT("BLACK"));
+
+ dc.SetPen(*wxRED_PEN);
+ dc.SetBrush (wxBrush (wxT("SALMON"),wxBRUSHSTYLE_TRANSPARENT));
+ dc.DrawCheckMark ( 80,50,75,75);
+ dc.DrawRectangle ( 80,50,75,75);
+
+ dc.SetPen(*wxGREEN_PEN);
+
+ // Clipped checkmarks
+ dc.DrawRectangle(180,50,75,75);
+ dc.SetClippingRegion(180,50,75,75); // x,y,width,height version
+ dc.DrawCheckMark ( 180,50,75,75);
+ dc.DestroyClippingRegion();
+
+ dc.DrawRectangle(wxRect(80,150,75,75));
+ dc.SetClippingRegion(wxPoint(80,150),wxSize(75,75)); // pt,size version
+ dc.DrawCheckMark ( 80,150,75,75);
+ dc.DestroyClippingRegion();
+
+ dc.DrawRectangle(wxRect(180,150,75,75));
+ dc.SetClippingRegion(wxRect(180,150,75,75)); // rect version
+ dc.DrawCheckMark ( 180,150,75,75);
+ dc.DestroyClippingRegion();
+
+ dc.DrawRectangle(wxRect( 80,250,50,65));
+ dc.DrawRectangle(wxRect(105,260,50,65));
+ dc.SetClippingRegion(wxRect( 80,250,50,65)); // second call to SetClippingRegion
+ dc.SetClippingRegion(wxRect(105,260,50,65)); // forms intersection with previous
+ dc.DrawCheckMark(80,250,75,75);
+ dc.DestroyClippingRegion(); // only one call to destroy (there's no stack)
+
+ /*
+ ** Clipping by wxRegion not implemented for SVG. Should be
+ ** possible, but need to access points that define the wxRegion
+ ** from inside DoSetDeviceClippingRegion() and wxRegion does not
+ ** implement anything like getPoints().
+ points[0].x = 180; points[0].y = 250;
+ points[1].x = 255; points[1].y = 250;
+ points[2].x = 180; points[2].y = 325;
+ points[3].x = 255; points[3].y = 325;
+ points[4].x = 180; points[4].y = 250;
+
+ dc.DrawLines (5, points);
+ wxRegion reg = wxRegion(5,points);
+
+ dc.SetClippingRegion(reg);
+ dc.DrawCheckMark ( 180,250,75,75);
+ dc.DestroyClippingRegion();
+ */
+
+#if wxUSE_STATUSBAR
+ s = wxT("Clipping region");
+#endif // wxUSE_STATUSBAR
+ break;
+
+ case 8:
+ wxString txtStr;
+ wxCoord txtX, txtY, txtW, txtH, txtDescent, txtEL;
+ wxCoord txtPad = 0;
+
+ wP = *wxRED_PEN;
+ dc.SetPen(wP);
+ //dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
+ //dc.SetTextBackground(*wxBLUE);
+
+ // Horizontal text
+ txtStr = wxT("Horizontal string");
+ dc.GetTextExtent(txtStr, &txtW, &txtH, &txtDescent, &txtEL);
+ txtX = 50;
+ txtY = 300;
+ dc.DrawRectangle(txtX, txtY, txtW + 2*txtPad, txtH + 2*txtPad);
+ dc.DrawText(txtStr, txtX + txtPad, txtY + txtPad);
+
+ // Vertical text
+ txtStr = wxT("Vertical string");
+ dc.GetTextExtent(txtStr, &txtW, &txtH, &txtDescent, &txtEL);
+ txtX = 50;
+ txtY = 250;
+ dc.DrawRectangle(txtX, txtY - (txtW + 2*txtPad), txtH + 2*txtPad, txtW + 2*txtPad);
+ dc.DrawRotatedText(txtStr, txtX + txtPad, txtY - txtPad, 90);
+
+ // 45 degree text
+ txtStr = wxT("45 deg string");
+ dc.GetTextExtent(txtStr, &txtW, &txtH, &txtDescent, &txtEL);
+ double lenW = (double)(txtW + 2*txtPad) / sqrt(2.0);
+ double lenH = (double)(txtH + 2*txtPad) / sqrt(2.0);
+ double padding = (double)txtPad / sqrt(2.0);
+ txtX = 150;
+ txtY = 200;
+ dc.DrawLine(txtX - padding, txtY, txtX + lenW, txtY - lenW); // top
+ dc.DrawLine(txtX + lenW, txtY - lenW, txtX - padding + lenH + lenW, txtY + (lenH - lenW));
+ dc.DrawLine(txtX - padding, txtY, txtX - padding + lenH, txtY + lenH);
+ dc.DrawLine(txtX - padding + lenH, txtY + lenH, txtX - padding + lenH + lenW, txtY + (lenH - lenW)); // bottom
+ dc.DrawRotatedText(txtStr, txtX, txtY, 45);
+#if wxUSE_STATUSBAR
+ s = wxT("Text position test page");
+#endif // wxUSE_STATUSBAR
+ break;
}
#if wxUSE_STATUSBAR
m_child->SetStatusText(s);