new area tree and rendering stuff

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@194519 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 90 insertions, 0 deletions

diff --git a/src/org/apache/fop/pdf/PDFState.java b/src/org/apache/fop/pdf/PDFState.java
new file mode 100644
index 000000000..add7d7aeb
--- /dev/null
+++ b/src/org/apache/fop/pdf/PDFState.java
@@ -0,0 +1,90 @@
+/*
+ * $Id$
+ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * For details on use and redistribution please refer to the
+ * LICENSE file included with these sources.
+ */
+
+package org.apache.fop.pdf;
+
+import java.awt.Shape;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+/**
+ * This keeps information about the current state when writing to pdf.
+ * It allows for creating new graphics states with the q operator.
+ *
+ * When setting the state for pdf there are three possible ways of
+ * handling the situation.
+ * The values can be set to override previous or default values.
+ * A new state can be added and then the values set.
+ * The current state can be popped and values will return to a
+ * previous state then the necessary values can be overridden.
+ * The current transform behaves differently to other values as the
+ * matrix is combined with the current resolved value.
+ * It is impossible to optimise the result without analysing the all
+ * the possible combinations after completing.
+ */
+public class PDFState {
+    private final static String COLOR = "color";
+    private final static String BACKCOLOR = "backcolor";
+    private final static String PATTERN = "pattern";
+    private final static String BACKPATTERN = "backpattern";
+    private final static String LINECAP = "lineCap";
+    private final static String LINEJOIN = "lineJoin";
+    private final static String LINEWIDTH = "lineWidth";
+    private final static String MITERLIMIT = "miterLimit";
+    private final static String TEXT = "text";
+    private final static String DASHOFFSET = "dashOffset";
+    private final static String DASHARRAY = "dashArray";
+    private final static String TRANSFORM = "transform";
+    private final static String FONTSIZE = "fontSize";
+    private final static String FONTNAME = "fontName";
+    private final static String CLIP = "clip";
+
+    PDFColor color = new PDFColor(0, 0, 0);
+    PDFColor backcolor = new PDFColor(255, 255, 255);
+    PDFPattern pattern = null;
+    PDFPattern backPattern = null;
+    int lineCap = 0;
+    int lineJoin = 0;
+    float lineWidth = 1;
+    float miterLimit = 0;
+    boolean text = false;
+    int dashOffset = 0;
+    int[] dashArray = new int[0];
+    double[] transform = new double[]{1, 0, 0, 1, 0, 0};
+    float fontSize = 0;
+    String fontName = "";
+    Shape clip = null;
+
+    ArrayList stateStack = new ArrayList();
+
+    public PDFState() {
+
+    }
+
+    // this call should be used when the q operator is used
+    // so that the state is known when popped
+    public void push() {
+        HashMap changedMap = new HashMap();
+
+    }
+
+    public void pop() {
+        if (getStackLevel() > 0) {
+            stateStack.remove(stateStack.size() - 1);
+        }
+    }
+
+    public int getStackLevel() {
+        return stateStack.size();
+    }
+
+    public boolean setLineDash(int[] array, int offset) {
+        return false;
+    }
+
+}
+