]> git.saurik.com Git - wxWidgets.git/blobdiff - demos/forty/pile.cpp
handle error in GetDataSize()
[wxWidgets.git] / demos / forty / pile.cpp
index b2fc9d18f40b283495acce1f6d8e9c83110ff166..e9ddfdbf4804084ddcc1842fa3c93354667b2717 100644 (file)
@@ -6,20 +6,15 @@
 // Created:     21/07/97
 // RCS-ID:      $Id$
 // Copyright:   (c) 1993-1998 Chris Breeze
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 //---------------------------------------------------------------------------
 // Last modified: 22nd July 1998 - ported to wxWidgets 2.0
 /////////////////////////////////////////////////////////////////////////////
 //+-------------------------------------------------------------+
-//| Description:                                                                                               |
-//|    The base class for holding piles of playing cards.                      |
+//| Description:                                                |
+//| The base class for holding piles of playing cards.          |
 //+-------------------------------------------------------------+
 
-#ifdef __GNUG__
-#pragma implementation
-#pragma interface
-#endif
-
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
@@ -30,9 +25,6 @@
 #ifndef WX_PRECOMP
 #include "wx/wx.h"
 #endif
-#ifdef __GNUG__
-#pragma implementation
-#endif
 
 #include <stdlib.h>
 #include <stdio.h>
 #include "wx/app.h"
 
 //+-------------------------------------------------------------+
-//| Pile::Pile()                                                                                               |
+//| Pile::Pile()                                                |
 //+-------------------------------------------------------------+
-//| Description:                                                                                               |
-//|    Initialise the pile to be empty of cards.                                       |
+//| Description:                                                |
+//| Initialise the pile to be empty of cards.                   |
 //+-------------------------------------------------------------+
 Pile::Pile(int x, int y, int dx, int dy)
 {
@@ -59,67 +51,67 @@ Pile::Pile(int x, int y, int dx, int dy)
     m_dy = dy;
     for (m_topCard = 0; m_topCard < NumCards; m_topCard++)
     {
-       m_cards[m_topCard] = 0;
+        m_cards[m_topCard] = 0;
     }
-    m_topCard = -1;    // i.e. empty
+    m_topCard = -1; // i.e. empty
 }
 
 
 //+-------------------------------------------------------------+
-//| Pile::Redraw()                                                                                             |
+//| Pile::Redraw()                                              |
 //+-------------------------------------------------------------+
-//| Description:                                                                                               |
-//|    Redraw the pile on the screen. If the pile is empty                     |
-//|    just draw a NULL card as a place holder for the pile.           |
-//|    Otherwise draw the pile from the bottom up, starting            |
-//|    at the origin of the pile, shifting each subsequent                     |
-//|    card by the pile's x and y offsets.                                                     |
+//| Description:                                                |
+//| Redraw the pile on the screen. If the pile is empty         |
+//| just draw a NULL card as a place holder for the pile.       |
+//| Otherwise draw the pile from the bottom up, starting        |
+//| at the origin of the pile, shifting each subsequent         |
+//| card by the pile's x and y offsets.                         |
 //+-------------------------------------------------------------+
 void Pile::Redraw(wxDC& dc )
 {
-   FortyFrame *frame = (FortyFrame*) wxTheApp->GetTopWindow();
-   wxWindow *canvas = (wxWindow *) NULL;
-   if (frame)
-   {
-       canvas = frame->GetCanvas();
-   }
-
-       if (m_topCard >= 0)
-       {
-               if (m_dx == 0 && m_dy == 0)
-               {
-      if ((canvas) && (canvas->IsExposed(m_x,m_y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
-                         m_cards[m_topCard]->Draw(dc, m_x, m_y);
-               }
-               else
-               {
-                       int x = m_x;
-                       int y = m_y;
-                       for (int i = 0; i <= m_topCard; i++)
-                       {
-        if ((canvas) && (canvas->IsExposed(x,y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
-                               m_cards[i]->Draw(dc, x, y);
+    FortyFrame *frame = (FortyFrame*) wxTheApp->GetTopWindow();
+    wxWindow *canvas = (wxWindow *) NULL;
+    if (frame)
+    {
+        canvas = frame->GetCanvas();
+    }
+
+    if (m_topCard >= 0)
+    {
+        if (m_dx == 0 && m_dy == 0)
+        {
+            if ((canvas) && (canvas->IsExposed(m_x,m_y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
+                m_cards[m_topCard]->Draw(dc, m_x, m_y);
+        }
+        else
+        {
+            int x = m_x;
+            int y = m_y;
+            for (int i = 0; i <= m_topCard; i++)
+            {
+                if ((canvas) && (canvas->IsExposed(x,y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
+                    m_cards[i]->Draw(dc, x, y);
                               x += (int)Card::GetScale()*m_dx;
                               y += (int)Card::GetScale()*m_dy;
-                       }
-               }
-       }
-       else
-       {
-    if ((canvas) && (canvas->IsExposed(m_x,m_y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
-               Card::DrawNullCard(dc, m_x, m_y);
-       }
+            }
+        }
+    }
+    else
+    {
+        if ((canvas) && (canvas->IsExposed(m_x,m_y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
+            Card::DrawNullCard(dc, m_x, m_y);
+    }
 }
 
 
 //+-------------------------------------------------------------+
-//| Pile::GetTopCard()                                         |
+//| Pile::GetTopCard()                                          |
 //+-------------------------------------------------------------+
-//| Description:                                                                                               |
-//|    Return a pointer to the top card in the pile or NULL            |
-//|    if the pile is empty.                                                                           |
-//| NB:        Gets a copy of the card without removing it from the    |
-//|    pile.                                                                                                           |
+//| Description:                                                |
+//| Return a pointer to the top card in the pile or NULL        |
+//| if the pile is empty.                                       |
+//| NB: Gets a copy of the card without removing it from the    |
+//| pile.                                                       |
 //+-------------------------------------------------------------+
 Card* Pile::GetTopCard()
 {
@@ -127,7 +119,7 @@ Card* Pile::GetTopCard()
 
     if (m_topCard >= 0)
     {
-       card = m_cards[m_topCard];
+        card = m_cards[m_topCard];
     }
     return card;
 }
@@ -136,10 +128,10 @@ Card* Pile::GetTopCard()
 //+-------------------------------------------------------------+
 //| Pile::RemoveTopCard()                                       |
 //+-------------------------------------------------------------+
-//| Description:                                                                                               |
-//|    If the pile is not empty, remove the top card from the          |
-//|    pile and return the pointer to the removed card.                        |
-//|    If the pile is empty return a NULL pointer.                                     |
+//| Description:                                                |
+//| If the pile is not empty, remove the top card from the      |
+//| pile and return the pointer to the removed card.            |
+//| If the pile is empty return a NULL pointer.                 |
 //+-------------------------------------------------------------+
 Card* Pile::RemoveTopCard()
 {
@@ -147,7 +139,7 @@ Card* Pile::RemoveTopCard()
 
     if (m_topCard >= 0)
     {
-               card = m_cards[m_topCard--];
+        card = m_cards[m_topCard--];
     }
     return card;
 }
@@ -156,49 +148,49 @@ Card* Pile::RemoveTopCard()
 //+-------------------------------------------------------------+
 //| Pile::RemoveTopCard()                                       |
 //+-------------------------------------------------------------+
-//| Description:                                                                                               |
-//|    As RemoveTopCard() but also redraw the top of the pile          |
-//|    after the card has been removed.                                                        |
-//| NB:        the offset allows for the redrawn area to be in a               |
-//|    bitmap ready for 'dragging' cards acrosss the screen.           |
+//| Description:                                                |
+//| As RemoveTopCard() but also redraw the top of the pile      |
+//| after the card has been removed.                            |
+//| NB: the offset allows for the redrawn area to be in a       |
+//| bitmap ready for 'dragging' cards acrosss the screen.       |
 //+-------------------------------------------------------------+
 Card* Pile::RemoveTopCard(wxDC& dc, int xOffset, int yOffset)
 {
-       int topX, topY, x, y;
-
-       GetTopCardPos(topX, topY);
-       Card* card = RemoveTopCard();
-
-       if (card)
-       {
-               card->Erase(dc, topX - xOffset, topY - yOffset);
-               GetTopCardPos(x, y);
-               if (m_topCard < 0)
-               {
-                       Card::DrawNullCard(dc, x - xOffset, y - yOffset);
-               }
-               else
-               {
-                       m_cards[m_topCard]->Draw(dc, x - xOffset, y - yOffset);
-               }
-       }
-
-       return card;
+    int topX, topY, x, y;
+
+    GetTopCardPos(topX, topY);
+    Card* card = RemoveTopCard();
+
+    if (card)
+    {
+        card->Erase(dc, topX - xOffset, topY - yOffset);
+        GetTopCardPos(x, y);
+        if (m_topCard < 0)
+        {
+            Card::DrawNullCard(dc, x - xOffset, y - yOffset);
+        }
+        else
+        {
+            m_cards[m_topCard]->Draw(dc, x - xOffset, y - yOffset);
+        }
+    }
+
+    return card;
 }
 
 
 void Pile::GetTopCardPos(int& x, int& y)
 {
-       if (m_topCard < 0)
-       {
-               x = m_x;
-               y = m_y;
-       }
-       else
-       {
-                x = m_x + (int)Card::GetScale()*m_dx * m_topCard;
-                y = m_y + (int)Card::GetScale()*m_dy * m_topCard;
-       }
+    if (m_topCard < 0)
+    {
+        x = m_x;
+        y = m_y;
+    }
+    else
+    {
+        x = m_x + (int)Card::GetScale()*m_dx * m_topCard;
+        y = m_y + (int)Card::GetScale()*m_dy * m_topCard;
+    }
 }
 
 void Pile::AddCard(Card* card)
@@ -224,7 +216,7 @@ bool Pile::CanCardLeave(Card* card)
 {
     for (int i = 0; i <= m_topCard; i++)
     {
-       if (card == m_cards[i]) return true;
+        if (card == m_cards[i]) return true;
     }
     return false;
 }
@@ -244,21 +236,21 @@ int Pile::CalcDistance(int x, int y)
 // to the card, otherwise return NULL
 Card* Pile::GetCard(int x, int y)
 {
-       int cardX;
-       int cardY;
-       GetTopCardPos(cardX, cardY);
-
-       for (int i = m_topCard; i >= 0; i--)
-       {
-                if (x >= cardX && x <= cardX + Card::GetWidth() &&
-                        y >= cardY && y <= cardY + Card::GetHeight())
-               {
-                       return m_cards[i];
-               }
-                cardX -= (int)Card::GetScale()*m_dx;
-                cardY -= (int)Card::GetScale()*m_dy;
-       }
-       return 0;
+    int cardX;
+    int cardY;
+    GetTopCardPos(cardX, cardY);
+
+    for (int i = m_topCard; i >= 0; i--)
+    {
+        if (x >= cardX && x <= cardX + Card::GetWidth() &&
+            y >= cardY && y <= cardY + Card::GetHeight())
+        {
+            return m_cards[i];
+        }
+        cardX -= (int)Card::GetScale()*m_dx;
+        cardY -= (int)Card::GetScale()*m_dy;
+    }
+    return 0;
 }
 
 
@@ -266,22 +258,22 @@ Card* Pile::GetCard(int x, int y)
 // return the origin of the pile.
 void Pile::GetCardPos(Card* card, int& x, int& y)
 {
-       x = m_x;
-       y = m_y;
-
-       for (int i = 0; i <= m_topCard; i++)
-       {
-               if (card == m_cards[i])
-               {
-                       return;
-               }
-                x += (int)Card::GetScale()*m_dx;
-                y += (int)Card::GetScale()*m_dy;
-       }
-
-       // card not found in pile, return origin of pile
-       x = m_x;
-       y = m_y;
+    x = m_x;
+    y = m_y;
+
+    for (int i = 0; i <= m_topCard; i++)
+    {
+        if (card == m_cards[i])
+        {
+            return;
+        }
+        x += (int)Card::GetScale()*m_dx;
+        y += (int)Card::GetScale()*m_dy;
+    }
+
+    // card not found in pile, return origin of pile
+    x = m_x;
+    y = m_y;
 }
 
 
@@ -294,13 +286,7 @@ bool Pile::Overlap(int x, int y)
     if (x >= cardX - Card::GetWidth()  && x <= cardX + Card::GetWidth() &&
         y >= cardY - Card::GetHeight() && y <= cardY + Card::GetHeight())
     {
-           return true;
+        return true;
     }
     return false;
 }
-
-
-Pile::~Pile()
-{
-// nothing special at the moment
-}