X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/04dbb6467be8f564f380bd9a1106fbdecbd26a98..038072e2f1eaf2bf32d748a71234d767ebba8919:/src/html/htmlcell.cpp

diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp
index 99935751ca..909584da20 100644
--- a/src/html/htmlcell.cpp
+++ b/src/html/htmlcell.cpp
@@ -47,8 +47,7 @@ wxHtmlCell::wxHtmlCell() : wxObject()
 
 wxHtmlCell::~wxHtmlCell()
 {
-    if (m_Link) delete m_Link;
-    if (m_Next) delete m_Next;
+    delete m_Link;
 }
 
 
@@ -61,8 +60,9 @@ void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
         wxHtmlLinkInfo lnk2(*lnk);
         lnk2.SetEvent(&event);
         lnk2.SetHtmlCell(this);
-        ((wxHtmlWindow*)parent)->OnLinkClicked(lnk2);
-        // note : this overcasting is legal because parent is *always* wxHtmlWindow
+
+        // note : this cast is legal because parent is *always* wxHtmlWindow
+        wxStaticCast(parent, wxHtmlWindow)->OnLinkClicked(lnk2);
     }
 }
 
@@ -72,17 +72,12 @@ bool wxHtmlCell::AdjustPagebreak(int *pagebreak) const
 {
     if ((!m_CanLiveOnPagebreak) &&
                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
-	{
+    {
         *pagebreak = m_PosY;
-        if (m_Next != NULL) m_Next->AdjustPagebreak(pagebreak);
         return TRUE;
     }
 
-    else
-    {
-        if (m_Next != NULL) return m_Next->AdjustPagebreak(pagebreak);
-        else return FALSE;
-    }
+    return FALSE;
 }
 
 
@@ -97,33 +92,36 @@ void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
 
 
 
-void wxHtmlCell::Layout(int w)
+void wxHtmlCell::Layout(int WXUNUSED(w))
 {
     SetPos(0, 0);
-    if (m_Next) m_Next->Layout(w);
 }
 
 
-void wxHtmlCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+
+void wxHtmlCell::GetHorizontalConstraints(int *left, int *right) const
 {
-    if (m_Next) m_Next->Draw(dc, x, y, view_y1, view_y2);
+    if (left)
+        *left = m_PosX;
+    if (right)
+        *right = m_PosX + m_Width;
 }
 
 
 
-void wxHtmlCell::DrawInvisible(wxDC& dc, int x, int y)
+const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
 {
-    if (m_Next) m_Next->DrawInvisible(dc, x, y);
+    return NULL;
 }
 
 
-
-const wxHtmlCell* wxHtmlCell::Find(int condition, const void* param) const
+wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y) const
 {
-    if (m_Next) return m_Next->Find(condition, param);
-    else return NULL;
-}
+    if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height )
+        return wxConstCast(this, wxHtmlCell);
 
+    return NULL;
+}
 
 
 //-----------------------------------------------------------------------------
@@ -139,10 +137,9 @@ wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
 
 
 
-void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2))
 {
     dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 
 
@@ -170,7 +167,13 @@ wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCe
 
 wxHtmlContainerCell::~wxHtmlContainerCell()
 {
-    if (m_Cells) delete m_Cells;
+    wxHtmlCell *cell = m_Cells;
+    while ( cell )
+    {
+        wxHtmlCell *cellNext = cell->GetNext();
+        delete cell;
+        cell = cellNext;
+    }
 }
 
 
@@ -224,11 +227,13 @@ bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const
         int pbrk = *pagebreak - m_PosY;
 
         while (c)
-	    {
-            if (c->AdjustPagebreak(&pbrk)) rt = TRUE;
+        {
+            if (c->AdjustPagebreak(&pbrk))
+                rt = TRUE;
             c = c->GetNext();
         }
-        if (rt) *pagebreak = pbrk + m_PosY;
+        if (rt)
+            *pagebreak = pbrk + m_PosY;
         return rt;
     }
 }
@@ -237,10 +242,22 @@ bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const
 
 void wxHtmlContainerCell::Layout(int w)
 {
-    if (m_LastLayout == w)
+    wxHtmlCell::Layout(w);
+
+    if (m_LastLayout == w) return;
+
+    // VS: Any attempt to layout with negative or zero width leads to hell,
+    // but we can't ignore such attempts completely, since it sometimes
+    // happen (e.g. when trying how small a table can be). The best thing we
+    // can do is to set the width of child cells to zero
+    if (w < 1)
     {
-        wxHtmlCell::Layout(w);
-        return;
+       m_Width = 0;
+       for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+            cell->Layout(0);
+            // this does two things: it recursively calls this code on all child
+            // contrainers and resets children's position to (0,0)
+       return;
     }
 
     wxHtmlCell *cell = m_Cells, *line = m_Cells;
@@ -273,7 +290,8 @@ void wxHtmlContainerCell::Layout(int w)
     {
         int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
         int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
-        m_Cells->Layout(m_Width - (l + r));
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+            cell->Layout(m_Width - (l + r));
     }
 
     /*
@@ -290,7 +308,7 @@ void wxHtmlContainerCell::Layout(int w)
     while (cell != NULL)
     {
         switch (m_AlignVer)
-	    {
+        {
             case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;
             case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell->GetHeight(); break;
             case wxHTML_ALIGN_CENTER :   ybasicpos = - cell->GetHeight() / 2; break;
@@ -307,7 +325,7 @@ void wxHtmlContainerCell::Layout(int w)
 
         // force new line if occured:
         if ((cell == NULL) || (xpos + cell->GetWidth() > s_width))
-	    {
+        {
             if (xpos > MaxLineWidth) MaxLineWidth = xpos;
             if (ysizeup < 0) ysizeup = 0;
             if (ysizedown < 0) ysizedown = 0;
@@ -330,7 +348,7 @@ void wxHtmlContainerCell::Layout(int w)
 
             if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
                 while (line != cell)
-		        {
+                {
                     line->SetPos(line->GetPosX() + xdelta,
                                    ypos + line->GetPosY());
                     line = line->GetNext();
@@ -342,7 +360,7 @@ void wxHtmlContainerCell::Layout(int w)
                 if (step < 0) step = 0;
                 xcnt--;
                 if (xcnt > 0) while (line != cell)
-		        {
+                {
                     line->SetPos(line->GetPosX() + s_indent +
                                    (counter++ * step / xcnt),
                                    ypos + line->GetPosY());
@@ -364,12 +382,12 @@ void wxHtmlContainerCell::Layout(int w)
     if (m_Height < m_MinHeight)
     {
         if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
-	    {
+        {
             int diff = m_MinHeight - m_Height;
             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
             cell = m_Cells;
             while (cell)
-	        {
+            {
                 cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
                 cell = cell->GetNext();
             }
@@ -381,8 +399,6 @@ void wxHtmlContainerCell::Layout(int w)
     if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
 
     m_LastLayout = w;
-
-    wxHtmlCell::Layout(w);
 }
 
 
@@ -396,7 +412,7 @@ void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
     {
 
         if (m_UseBkColour)
-	    {
+        {
             wxBrush myb = wxBrush(m_BkColour, wxSOLID);
 
             int real_y1 = mMax(y + m_PosY, view_y1);
@@ -408,7 +424,7 @@ void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
         }
 
         if (m_UseBorder)
-	    {
+        {
             wxPen mypen1(m_BorderColour1, 1, wxSOLID);
             wxPen mypen2(m_BorderColour2, 1, wxSOLID);
 
@@ -420,41 +436,44 @@ void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
             dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
         }
 
-        if (m_Cells) m_Cells->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2);
+        if (m_Cells)
+        {
+            for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+                cell->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2);
+        }
     }
     // container invisible, just proceed font+color changing:
     else
     {
-        if (m_Cells) m_Cells->DrawInvisible(dc, x + m_PosX, y + m_PosY);
+        if (m_Cells)
+        {
+            for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+                cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
+        }
     }
-
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 
 
 
 void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y)
 {
-    if (m_Cells) m_Cells->DrawInvisible(dc, x + m_PosX, y + m_PosY);
-    wxHtmlCell::DrawInvisible(dc, x, y);
+    if (m_Cells)
+    {
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+            cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
+    }
 }
 
 
 
 wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
 {
-    wxHtmlCell *c = m_Cells;
-    int cx, cy, cw, ch;
+    wxHtmlCell *cell = FindCellByPos(x, y);
 
-    while (c)
-    {
-        cx = c->GetPosX(), cy = c->GetPosY();
-        cw = c->GetWidth(), ch = c->GetHeight();
-        if ((x >= cx) && (x < cx + cw) && (y >= cy) && (y < cy + ch))
-            return c->GetLink(x - cx, y - cy);
-        c = c->GetNext();
-    }
-    return NULL;
+    // VZ: I don't know if we should pass absolute or relative coords to
+    //     wxHtmlCell::GetLink()? As the base class version just ignores them
+    //     anyhow, it hardly matters right now but should still be clarified
+    return cell ? cell->GetLink(x, y) : NULL;
 }
 
 
@@ -502,12 +521,12 @@ void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale
         wxString wd = tag.GetParam(wxT("WIDTH"));
 
         if (wd[wd.Length()-1] == wxT('%'))
-	    {
+        {
             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
         }
         else
-	    {
+        {
             wxSscanf(wd.c_str(), wxT("%i"), &wdi);
             SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
         }
@@ -519,37 +538,68 @@ void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale
 
 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
 {
-    const wxHtmlCell *r = NULL;
-
     if (m_Cells)
     {
-        r = m_Cells->Find(condition, param);
-        if (r) return r;
-    }
+        const wxHtmlCell *r = NULL;
 
-    return wxHtmlCell::Find(condition, param);
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+        {
+            r = cell->Find(condition, param);
+            if (r) return r;
+        }
+    }
+    return NULL;
 }
 
 
+wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y) const
+{
+    for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+    {
+        int cx = cell->GetPosX(),
+            cy = cell->GetPosY();
+
+        if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
+             (cy <= y) && (cy + cell->GetHeight() > y) )
+        {
+            return cell->FindCellByPos(x - cx, y - cy);
+        }
+    }
+
+    return NULL;
+}
+
 
 void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
 {
-    if (m_Cells)
+    wxHtmlCell *cell = FindCellByPos(x, y);
+    if ( cell )
+        cell->OnMouseClick(parent, x, y, event);
+}
+
+
+
+void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const
+{
+    int cleft = m_PosX + m_Width, cright = m_PosX; // worst case
+    int l, r;
+
+    for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
     {
-        wxHtmlCell *c = m_Cells;
-        while (c)
-	    {
-            if (    (c->GetPosX() <= x) &&
-                    (c->GetPosY() <= y) &&
-                    (c->GetPosX() + c->GetWidth() > x) &&
-                    (c->GetPosY() + c->GetHeight() > y))
-		    {
-                c->OnMouseClick(parent, x - c->GetPosX(), y - c->GetPosY(), event);
-                break;
-            }
-            c = c->GetNext();
-        }
+        cell->GetHorizontalConstraints(&l, &r);
+        if (l < cleft)
+            cleft = l;
+        if (r > cright)
+            cright = r;
     }
+
+    cleft -= (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
+    cright += (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
+
+    if (left)
+        *left = cleft;
+    if (right)
+        *right = cright;
 }
 
 
@@ -560,7 +610,7 @@ void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxM
 // wxHtmlColourCell
 //--------------------------------------------------------------------------------
 
-void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+void wxHtmlColourCell::Draw(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2))
 {
     if (m_Flags & wxHTML_CLR_FOREGROUND)
         dc.SetTextForeground(m_Colour);
@@ -569,10 +619,9 @@ void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
         dc.SetBackground(wxBrush(m_Colour, wxSOLID));
         dc.SetTextBackground(m_Colour);
     }
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 
-void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlColourCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y))
 {
     if (m_Flags & wxHTML_CLR_FOREGROUND)
         dc.SetTextForeground(m_Colour);
@@ -581,7 +630,6 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
         dc.SetBackground(wxBrush(m_Colour, wxSOLID));
         dc.SetTextBackground(m_Colour);
     }
-    wxHtmlCell::DrawInvisible(dc, x, y);
 }
 
 
@@ -591,16 +639,14 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
 // wxHtmlFontCell
 //--------------------------------------------------------------------------------
 
-void wxHtmlFontCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+void wxHtmlFontCell::Draw(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2))
 {
     dc.SetFont(m_Font);
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 
-void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y))
 {
     dc.SetFont(m_Font);
-    wxHtmlCell::DrawInvisible(dc, x, y);
 }
 
 
@@ -624,7 +670,7 @@ wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
 }
 
 
-void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2))
 {
     int absx = 0, absy = 0, stx, sty;
     wxHtmlCell *c = this;
@@ -638,13 +684,11 @@ void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
 
     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
-
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 
 
 
-void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y))
 {
     int absx = 0, absy = 0, stx, sty;
     wxHtmlCell *c = this;
@@ -658,8 +702,6 @@ void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y)
 
     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
-
-    wxHtmlCell::DrawInvisible(dc, x, y);
 }