X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6ea5c52d2931b2ea24962a6c3e4d0033e3c43eda..04633c190f5a6eafe607a5712647aaa131522b1f:/samples/dragimag/dragimag.cpp

diff --git a/samples/dragimag/dragimag.cpp b/samples/dragimag/dragimag.cpp
index f3b4186346..398a53d634 100644
--- a/samples/dragimag/dragimag.cpp
+++ b/samples/dragimag/dragimag.cpp
@@ -25,7 +25,7 @@
 // Under Windows, change this to 1
 // to use wxGenericDragImage
 
-#define wxUSE_GENERIC_DRAGIMAGE 0
+#define wxUSE_GENERIC_DRAGIMAGE 1
 
 #if wxUSE_GENERIC_DRAGIMAGE
 #include "wx/generic/dragimgg.h"
@@ -36,7 +36,7 @@
 
 #include "dragimag.h"
 
-#if defined(__WXGTK__) || defined(__WXMOTIF__)
+#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
 #include "mondrian.xpm"
 #include "dragicon.xpm"
 #endif
@@ -83,7 +83,6 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
     PrepareDC( dc );
 
     DrawShapes(dc);
-
 }
 
 void MyCanvas::OnEraseBackground(wxEraseEvent& event)
@@ -131,10 +130,8 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
         if (!m_draggedShape || !m_dragImage)
             return;
 
-        wxPoint newPos(m_draggedShape->GetPosition().x + (event.GetPosition().x - m_dragStartPos.x),
-                           m_draggedShape->GetPosition().y + (event.GetPosition().y - m_dragStartPos.y));
-
-        m_draggedShape->SetPosition(newPos);
+        m_draggedShape->SetPosition(m_draggedShape->GetPosition()
+                                    + event.GetPosition() - m_dragStartPos);
 
         m_dragImage->Hide();
         m_dragImage->EndDrag();
@@ -165,9 +162,6 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
             if (dx <= tolerance && dy <= tolerance)
                 return;
 
-            wxPoint newPos(m_draggedShape->GetPosition().x + (event.GetPosition().x - m_dragStartPos.x),
-                           m_draggedShape->GetPosition().y + (event.GetPosition().y - m_dragStartPos.y));
-
             // Start the drag.
             m_dragMode = TEST_DRAG_DRAGGING;
 
@@ -184,58 +178,51 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
             {
                 case SHAPE_DRAG_BITMAP:
                 {
-                    wxPoint hotSpot(event.GetPosition().x - newPos.x, event.GetPosition().y - newPos.y);
-                    m_dragImage = new wxDragImage(m_draggedShape->GetBitmap(), wxCursor(wxCURSOR_HAND), hotSpot);
+                    m_dragImage = new wxDragImage(m_draggedShape->GetBitmap(), wxCursor(wxCURSOR_HAND));
                     break;
                 }
                 case SHAPE_DRAG_TEXT:
                 {
-                    wxPoint hotSpot(event.GetPosition().x - newPos.x, event.GetPosition().y - newPos.y);
-                    m_dragImage = new wxDragImage("Dragging some test text", wxCursor(wxCURSOR_HAND), hotSpot);
+                    m_dragImage = new wxDragImage(wxString(_T("Dragging some test text")), wxCursor(wxCURSOR_HAND));
                     break;
                 }
                 case SHAPE_DRAG_ICON:
                 {
-                    wxPoint hotSpot(event.GetPosition().x - newPos.x, event.GetPosition().y - newPos.y);
-
                     // Can anyone explain why this test is necessary,
                     // to prevent a gcc error?
-#ifdef __WXMOTIF__
+#if defined(__WXMOTIF__) || defined(__WXX11__)
                     wxIcon icon(dragicon_xpm);
 #else
                     wxIcon icon(wxICON(dragicon));
 #endif
                     
-                    m_dragImage = new wxDragImage(icon, wxCursor(wxCURSOR_HAND), hotSpot);
+                    m_dragImage = new wxDragImage(icon, wxCursor(wxCURSOR_HAND));
                     break;
                 }
             }
 
-            bool fullScreen = FALSE;
-            if (wxGetApp().GetUseScreen())
-            {
-                newPos = ClientToScreen(newPos);
-                fullScreen = TRUE;
-            }
-
-            bool retValue;
+            bool fullScreen = wxGetApp().GetUseScreen();
 
-            if (fullScreen)
-                // This line uses the whole screen...
-                retValue = m_dragImage->BeginDrag(wxPoint(0, 0), this, TRUE);
-                // while this line restricts dragging to the parent frame.
-                // retValue = m_dragImage->BeginDrag(wxPoint(0, 0), this, GetParent());
-            else
-                retValue = m_dragImage->BeginDrag(wxPoint(0, 0), this);
+            // The offset between the top-left of the shape image and the current shape position
+            wxPoint beginDragHotSpot = m_dragStartPos - m_draggedShape->GetPosition();
+            
+            // Now we do this inside the implementation: always assume
+            // coordinates relative to the capture window (client coordinates)
 
-            if (!retValue)
+            //if (fullScreen)
+            //    beginDragHotSpot -= ClientToScreen(wxPoint(0, 0));
+            
+            if (!m_dragImage->BeginDrag(beginDragHotSpot, this, fullScreen))
             {
                 delete m_dragImage;
                 m_dragImage = (wxDragImage*) NULL;
                 m_dragMode = TEST_DRAG_NONE;
+                
+            } else
+            {
+                m_dragImage->Move(event.GetPosition());
+                m_dragImage->Show();
             }
-            m_dragImage->Move(newPos);
-            m_dragImage->Show();
         }
         else if (m_dragMode == TEST_DRAG_DRAGGING)
         {
@@ -272,16 +259,8 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
                 m_currentlyHighlighted->Draw(clientDC, wxINVERT);
             }
 
-            wxPoint newPos(m_draggedShape->GetPosition().x + (event.GetPosition().x - m_dragStartPos.x),
-                           m_draggedShape->GetPosition().y + (event.GetPosition().y - m_dragStartPos.y));
-
-            if (wxGetApp().GetUseScreen())
-            {
-                newPos = ClientToScreen(newPos);
-            }
-
             // Move and show the image again
-            m_dragImage->Move(newPos);
+            m_dragImage->Move(event.GetPosition());
 
             if (mustUnhighlightOld || mustHighlightNew)
                  m_dragImage->Show();
@@ -291,13 +270,13 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
 
 void MyCanvas::DrawShapes(wxDC& dc)
 {
-    wxNode* node = m_displayList.First();
+    wxList::compatibility_iterator node = m_displayList.GetFirst();
     while (node)
     {
-        DragShape* shape = (DragShape*) node->Data();
+        DragShape* shape = (DragShape*) node->GetData();
         if (shape->IsShown())
           shape->Draw(dc);
-        node = node->Next();
+        node = node->GetNext();
     }
 }
 
@@ -316,31 +295,30 @@ void MyCanvas::EraseShape(DragShape* shape, wxDC& dc)
 
 void MyCanvas::ClearShapes()
 {
-    wxNode* node = m_displayList.First();
+    wxList::compatibility_iterator node = m_displayList.GetFirst();
     while (node)
     {
-        DragShape* shape = (DragShape*) node->Data();
+        DragShape* shape = (DragShape*) node->GetData();
         delete shape;
-        node = node->Next();
+        node = node->GetNext();
     }
     m_displayList.Clear();
 }
 
 DragShape* MyCanvas::FindShape(const wxPoint& pt) const
 {
-    wxNode* node = m_displayList.First();
+    wxList::compatibility_iterator node = m_displayList.GetFirst();
     while (node)
     {
-        DragShape* shape = (DragShape*) node->Data();
+        DragShape* shape = (DragShape*) node->GetData();
         if (shape->HitTest(pt))
             return shape;
-        node = node->Next();
+        node = node->GetNext();
     }
     return (DragShape*) NULL;
 }
 
 // MyFrame
-
 IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
 
 BEGIN_EVENT_TABLE(MyFrame,wxFrame)
@@ -349,36 +327,38 @@ BEGIN_EVENT_TABLE(MyFrame,wxFrame)
 END_EVENT_TABLE()
 
 MyFrame::MyFrame()
-       : wxFrame( (wxFrame *)NULL, -1, "wxDragImage sample",
-                  wxPoint(20,20), wxSize(470,360) )
+: wxFrame( (wxFrame *)NULL, -1, _T("wxDragImage sample"),
+          wxPoint(20,20), wxSize(470,360) )
 {
-  wxMenu *file_menu = new wxMenu();
-  file_menu->Append( wxID_ABOUT, "&About...");
-  file_menu->Append( TEST_USE_SCREEN, "&Use whole screen for dragging", "Use whole screen", TRUE);
-  file_menu->Append( wxID_EXIT, "E&xit");
-
-  wxMenuBar *menu_bar = new wxMenuBar();
-  menu_bar->Append(file_menu, "&File");
-
-  SetMenuBar( menu_bar );
-
-  CreateStatusBar(2);
-  int widths[] = { -1, 100 };
-  SetStatusWidths( 2, widths );
+    wxMenu *file_menu = new wxMenu();
+    file_menu->Append( wxID_ABOUT, _T("&About..."));
+    file_menu->Append( TEST_USE_SCREEN, _T("&Use whole screen for dragging"), _T("Use whole screen"), TRUE);
+    file_menu->Append( wxID_EXIT, _T("E&xit"));
+    
+    wxMenuBar *menu_bar = new wxMenuBar();
+    menu_bar->Append(file_menu, _T("&File"));
 
-  m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
+    SetIcon(wxICON(mondrian));
+    SetMenuBar( menu_bar );
+    
+    CreateStatusBar(2);
+    int widths[] = { -1, 100 };
+    SetStatusWidths( 2, widths );
+    
+    m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
 }
 
 void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
 {
-  Close( TRUE );
+    Close( TRUE );
 }
 
 void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
 {
-  (void)wxMessageBox( "wxDragImage demo\n"
-                      "Julian Smart (c) 2000",
-                      "About wxDragImage Demo", wxICON_INFORMATION | wxOK );
+    (void)wxMessageBox( _T("wxDragImage demo\n")
+        _T("Julian Smart (c) 2000"),
+        _T("About wxDragImage Demo"), 
+        wxICON_INFORMATION | wxOK );
 }
 
 //-----------------------------------------------------------------------------
@@ -402,24 +382,26 @@ bool MyApp::OnInit()
 #endif
 
     wxImage image;
-    if (image.LoadFile("backgrnd.png", wxBITMAP_TYPE_PNG))
+    if (image.LoadFile(_T("backgrnd.png"), wxBITMAP_TYPE_PNG))
     {
-        m_background = image.ConvertToBitmap();
+        m_background = wxBitmap(image);
     }
 
-
     MyFrame *frame = new MyFrame();
 
-    wxString rootName("shape0");
+    wxString rootName(_T("shape0"));
 
     int i;
     for (i = 1; i < 4; i++)
     {
         wxString filename;
-        filename.Printf("%s%d.png", (const char*) rootName, i);
+        filename.Printf(wxT("%s%d.png"), (const wxChar*)rootName, i);
+    /* For some reason under wxX11, the 2nd LoadFile in this loop fails, with
+       a BadMatch inside CreateFromImage (inside ConvertToBitmap). This happens even if you copy
+       the first file over the second file. */
         if (image.LoadFile(filename, wxBITMAP_TYPE_PNG))
         {
-            DragShape* newShape = new DragShape(image.ConvertToBitmap());
+            DragShape* newShape = new DragShape(wxBitmap(image));
             newShape->SetPosition(wxPoint(i*50, i*50));
 
             if (i == 2)
@@ -454,6 +436,11 @@ bool MyApp::OnInit()
     return TRUE;
 }
 
+int MyApp::OnExit()
+{
+    return 0;
+}
+
 bool MyApp::TileBitmap(const wxRect& rect, wxDC& dc, wxBitmap& bitmap)
 {
     int w = bitmap.GetWidth();
@@ -468,7 +455,7 @@ bool MyApp::TileBitmap(const wxRect& rect, wxDC& dc, wxBitmap& bitmap)
     return TRUE;
 }
 
-void MyApp::OnUseScreen(wxCommandEvent& event)
+void MyApp::OnUseScreen(wxCommandEvent& WXUNUSED(event))
 {
     m_useScreen = !m_useScreen;
 }