author | prr |
Tue, 16 Dec 2014 09:58:02 -0800 | |
changeset 28236 | 610561ed1847 |
parent 28231 | b608ffcaed74 |
parent 28059 | e576535359cc |
permissions | -rw-r--r-- |
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/* |
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8066621: Suppress deprecation warnings in java.desktop module
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parents:
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changeset
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* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package javax.swing.text.html; |
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import java.util.Enumeration; |
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import java.awt.*; |
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import javax.swing.*; |
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import javax.swing.border.*; |
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import javax.swing.event.*; |
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import javax.swing.text.*; |
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/** |
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* A view implementation to display an unwrapped |
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* preformatted line.<p> |
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* This subclasses ParagraphView, but this really only contains one |
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* Row of text. |
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* |
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* @author Timothy Prinzing |
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*/ |
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class LineView extends ParagraphView { |
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/** Last place painted at. */ |
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int tabBase; |
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/** |
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* Creates a LineView object. |
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* |
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* @param elem the element to wrap in a view |
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*/ |
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public LineView(Element elem) { |
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super(elem); |
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} |
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/** |
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* Preformatted lines are not suppressed if they |
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* have only whitespace, so they are always visible. |
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*/ |
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public boolean isVisible() { |
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return true; |
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} |
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/** |
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* Determines the minimum span for this view along an |
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* axis. The preformatted line should refuse to be |
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* sized less than the preferred size. |
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* |
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* @param axis may be either <code>View.X_AXIS</code> or |
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* <code>View.Y_AXIS</code> |
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* @return the minimum span the view can be rendered into |
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* @see View#getPreferredSpan |
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*/ |
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public float getMinimumSpan(int axis) { |
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return getPreferredSpan(axis); |
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} |
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/** |
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* Gets the resize weight for the specified axis. |
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* |
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* @param axis may be either X_AXIS or Y_AXIS |
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* @return the weight |
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*/ |
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public int getResizeWeight(int axis) { |
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switch (axis) { |
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case View.X_AXIS: |
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return 1; |
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case View.Y_AXIS: |
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return 0; |
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default: |
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throw new IllegalArgumentException("Invalid axis: " + axis); |
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} |
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} |
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/** |
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* Gets the alignment for an axis. |
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* |
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* @param axis may be either X_AXIS or Y_AXIS |
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* @return the alignment |
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*/ |
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public float getAlignment(int axis) { |
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if (axis == View.X_AXIS) { |
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return 0; |
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} |
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return super.getAlignment(axis); |
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} |
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/** |
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* Lays out the children. If the layout span has changed, |
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* the rows are rebuilt. The superclass functionality |
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* is called after checking and possibly rebuilding the |
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* rows. If the height has changed, the |
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* <code>preferenceChanged</code> method is called |
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* on the parent since the vertical preference is |
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* rigid. |
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* |
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* @param width the width to lay out against >= 0. This is |
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* the width inside of the inset area. |
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* @param height the height to lay out against >= 0 (not used |
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* by paragraph, but used by the superclass). This |
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* is the height inside of the inset area. |
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*/ |
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protected void layout(int width, int height) { |
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super.layout(Integer.MAX_VALUE - 1, height); |
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} |
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/** |
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* Returns the next tab stop position given a reference position. |
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* This view implements the tab coordinate system, and calls |
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* <code>getTabbedSpan</code> on the logical children in the process |
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* of layout to determine the desired span of the children. The |
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* logical children can delegate their tab expansion upward to |
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* the paragraph which knows how to expand tabs. |
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* <code>LabelView</code> is an example of a view that delegates |
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* its tab expansion needs upward to the paragraph. |
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* <p> |
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* This is implemented to try and locate a <code>TabSet</code> |
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* in the paragraph element's attribute set. If one can be |
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* found, its settings will be used, otherwise a default expansion |
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e576535359cc
8067377: My hobby: caning, then then canning, the the can-can
martin
parents:
25859
diff
changeset
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* will be provided. The base location for tab expansion |
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* is the left inset from the paragraphs most recent allocation |
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* (which is what the layout of the children is based upon). |
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* |
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* @param x the X reference position |
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* @param tabOffset the position within the text stream |
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* that the tab occurred at >= 0. |
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* @return the trailing end of the tab expansion >= 0 |
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* @see TabSet |
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* @see TabStop |
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* @see LabelView |
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*/ |
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public float nextTabStop(float x, int tabOffset) { |
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// If the text isn't left justified, offset by 10 pixels! |
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if (getTabSet() == null && |
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StyleConstants.getAlignment(getAttributes()) == |
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StyleConstants.ALIGN_LEFT) { |
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return getPreTab(x, tabOffset); |
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} |
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return super.nextTabStop(x, tabOffset); |
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} |
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/** |
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* Returns the location for the tab. |
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*/ |
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28231
b608ffcaed74
8066621: Suppress deprecation warnings in java.desktop module
darcy
parents:
25859
diff
changeset
|
164 |
@SuppressWarnings("deprecation") |
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protected float getPreTab(float x, int tabOffset) { |
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Document d = getDocument(); |
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View v = getViewAtPosition(tabOffset, null); |
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if ((d instanceof StyledDocument) && v != null) { |
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// Assume f is fixed point. |
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Font f = ((StyledDocument)d).getFont(v.getAttributes()); |
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Container c = getContainer(); |
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FontMetrics fm = (c != null) ? c.getFontMetrics(f) : |
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Toolkit.getDefaultToolkit().getFontMetrics(f); |
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int width = getCharactersPerTab() * fm.charWidth('W'); |
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int tb = (int)getTabBase(); |
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return (float)((((int)x - tb) / width + 1) * width + tb); |
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} |
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return 10.0f + x; |
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} |
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/** |
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* @return number of characters per tab, 8. |
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*/ |
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protected int getCharactersPerTab() { |
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return 8; |
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} |
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} |