1 files changed, 250 insertions, 0 deletions
diff --git a/tdehtml/rendering/render_canvas.h b/tdehtml/rendering/render_canvas.h
new file mode 100644
index 000000000..8495b87bc
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+++ b/tdehtml/rendering/render_canvas.h
@@ -0,0 +1,250 @@
+/*
+ * This file is part of the HTML widget for KDE.
+ *
+ * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+#ifndef render_canvas_h
+#define render_canvas_h
+
+#include "render_block.h"
+
+class KHTMLView;
+class TQScrollView;
+
+namespace tdehtml {
+
+class RenderPage;
+class RenderStyle;
+
+enum CanvasMode {
+    CanvasViewPort, // Paints inside a viewport
+    CanvasPage,     // Paints one page
+    CanvasDocument  // Paints the whole document
+};
+
+class RenderCanvas : public RenderBlock
+{
+public:
+    RenderCanvas(DOM::NodeImpl* node, KHTMLView *view);
+    ~RenderCanvas();
+
+    virtual const char *renderName() const { return "RenderCanvas"; }
+
+    virtual bool isCanvas() const { return true; }
+
+    virtual void setStyle(RenderStyle *style);
+    virtual void layout();
+    virtual void calcWidth();
+    virtual void calcHeight();
+    virtual void calcMinMaxWidth();
+    virtual bool absolutePosition(int &xPos, int&yPos, bool f = false) const;
+
+    int docHeight() const;
+    int docWidth() const;
+
+    KHTMLView *view() const { return m_view; }
+
+    virtual void repaint(Priority p=NormalPriority);
+    virtual void repaintRectangle(int x, int y, int w, int h, Priority p=NormalPriority, bool f=false);
+    void repaintViewRectangle(int x, int y, int w, int h, bool asap=false);
+    bool needsFullRepaint() const;
+    void deferredRepaint( RenderObject* o );
+    void scheduleDeferredRepaints();
+
+    virtual void paint(PaintInfo&, int tx, int ty);
+    virtual void paintBoxDecorations(PaintInfo& paintInfo, int _tx, int _ty);
+    virtual void setSelection(RenderObject *s, int sp, RenderObject *e, int ep);
+    virtual void clearSelection(bool doRepaint=true);
+    virtual RenderObject *selectionStart() const { return m_selectionStart; }
+    virtual RenderObject *selectionEnd() const { return m_selectionEnd; }
+
+    void setPrintImages(bool enable) { m_printImages = enable; }
+    bool printImages() const { return m_printImages; }
+
+    void setCanvasMode(CanvasMode mode) { m_canvasMode = mode; }
+    CanvasMode canvasMode() const { return m_canvasMode; }
+
+    void setPagedMode(bool b) { m_pagedMode = b; }
+    void setStaticMode(bool b) { m_staticMode = b; }
+
+    bool pagedMode() const { return m_pagedMode; }
+    bool staticMode() const { return m_staticMode; }
+
+    void setPageTop(int top) {
+        m_pageTop = top;
+//         m_y = top;
+    }
+    void setPageBottom(int bottom) { m_pageBottom = bottom; }
+    int pageTop() const { return m_pageTop; }
+    int pageBottom() const { return m_pageBottom; }
+
+    int pageTopAfter(int y) const {
+        if (pageHeight() == 0) return 0;
+        return (y / pageHeight() + 1) * pageHeight() ;
+    }
+
+    int crossesPageBreak(int top, int bottom) const {
+        if (pageHeight() == 0) return false;
+        int pT = top / pageHeight();
+        // bottom is actually the first line not in the box
+        int pB = (bottom-1) / pageHeight();
+        return (pT == pB) ? 0 : (pB + 1);
+    }
+
+    void setPageNumber(int number) { m_pageNr = number; }
+    int pageNumber() const { return m_pageNr; }
+
+public:
+    virtual void setWidth( int width ) { m_rootWidth = m_width = width; }
+    virtual void setHeight( int height ) { m_rootHeight = m_height = height; }
+
+//     void setPageHeight( int height ) { m_viewportHeight = m_pageHeight = height; }
+    int pageHeight() const { return m_pageBottom - m_pageTop; }
+
+    int viewportWidth() const { return m_viewportWidth; }
+    int viewportHeight() const { return m_viewportHeight; }
+
+    RenderPage* page();
+
+    TQRect selectionRect() const;
+
+    void setMaximalOutlineSize(int o) { m_maximalOutlineSize = o; }
+    int maximalOutlineSize() const { return m_maximalOutlineSize; }
+    
+    void setNeedsWidgetMasks( bool b=true) { m_needsWidgetMasks = b; }
+    bool needsWidgetMasks() const { return m_needsWidgetMasks; }
+
+    void updateDocSizeAfterLayerTranslation( RenderObject* o, bool posXOffset, bool posYOffset );
+protected:
+    // makes sure document, scrollbars and viewport size are accurate
+    void updateDocumentSize();
+
+    // internal setters for cached values of document width/height
+    // Setting to -1/-1 invalidates the cache.
+    void setCachedDocWidth(int w ) { m_cachedDocWidth = w; }
+    void setCachedDocHeight(int h) { m_cachedDocHeight = h; }
+
+    virtual void selectionStartEnd(int& spos, int& epos);
+
+    virtual TQRect viewRect() const;
+
+    KHTMLView *m_view;
+
+    RenderObject* m_selectionStart;
+    RenderObject* m_selectionEnd;
+    int m_selectionStartPos;
+    int m_selectionEndPos;
+
+    CanvasMode m_canvasMode;
+
+    int m_rootWidth;
+    int m_rootHeight;
+
+    int m_viewportWidth;
+    int m_viewportHeight;
+    
+    int m_cachedDocWidth;
+    int m_cachedDocHeight;
+
+    bool m_printImages;
+    bool m_needsFullRepaint;
+
+    // Canvas is not interactive
+    bool m_staticMode;
+    // Canvas is paged
+    bool m_pagedMode;
+    // Canvas contains overlaid widgets
+    bool m_needsWidgetMasks;
+
+    short m_pageNr;
+
+    int m_pageTop;
+    int m_pageBottom;
+
+    RenderPage* m_page;
+
+    int m_maximalOutlineSize; // Used to apply a fudge factor to dirty-rect checks on blocks/tables.
+    TQValueList<RenderObject*> m_dirtyChildren;
+};
+
+inline RenderCanvas* RenderObject::canvas() const
+{
+    return static_cast<RenderCanvas*>(document()->renderer());
+}
+
+// Represents the page-context of CSS
+class RenderPage
+{
+public:
+    RenderPage(RenderCanvas* canvas) : m_canvas(canvas),
+        m_marginTop(0), m_marginBottom(0),
+        m_marginLeft(0), m_marginRight(0),
+        m_pageWidth(0), m_pageHeight(0),
+        m_fixedSize(false)
+    {
+        m_style = new RenderPageStyle();
+    }
+    virtual ~RenderPage()
+    {
+        delete m_style;
+    }
+
+    int marginTop() const       { return m_marginTop; }
+    int marginBottom() const    { return m_marginBottom; }
+    int marginLeft() const      { return m_marginLeft; }
+    int marginRight() const     { return m_marginRight; }
+
+    void setMarginTop(int margin)       { m_marginTop = margin; }
+    void setMarginBottom(int margin)    { m_marginBottom = margin; }
+    void setMarginLeft(int margin)      { m_marginLeft = margin; }
+    void setMarginRight(int margin)     { m_marginRight = margin; }
+
+    int pageWidth() const   { return m_pageWidth; }
+    int pageHeight() const  { return m_pageHeight; }
+
+    void setPageSize(int width, int height) {
+        m_pageWidth = width;
+        m_pageHeight = height;
+    }
+
+    // Returns true if size was set by document, false if set by user-agent
+    bool fixedSize() const { return m_fixedSize; }
+    void setFixedSize(bool b) { m_fixedSize = b; }
+
+    RenderPageStyle* style() { return m_style; }
+    const RenderPageStyle* style() const { return m_style; }
+
+protected:
+    RenderCanvas* m_canvas;
+    RenderPageStyle* m_style;
+
+    int m_marginTop;
+    int m_marginBottom;
+    int m_marginLeft;
+    int m_marginRight;
+
+    int m_pageWidth;
+    int m_pageHeight;
+
+    bool m_fixedSize;
+};
+
+}
+#endif