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diff --git a/Article-Understanding-Layouts/index.html b/Article-Understanding-Layouts/index.html
index 6f2bc8e..a6be422 100644
--- a/Article-Understanding-Layouts/index.html
+++ b/Article-Understanding-Layouts/index.html
@@ -155,13 +155,13 @@
<p>Running the above code results in the following:</p>
-<img src="images/LayoutExample.jpg" />
+<img src="images/LayoutExample.png" />
<p>If the user resizes the shell so that there is no longer room for
Button 3 on the right, the <code>RowLayout</code> wraps Button 3 to the
next row, as follows:</p>
-<img src="images/LayoutExampleResized.jpg" />
+<img src="images/LayoutExampleResized.png" />
<p>Using layouts is closely tied with resize, as we shall see.
Consequently, most of the examples in this document show what would
@@ -214,13 +214,13 @@
<td><code>fillLayout.type = SWT.HORIZONTAL</code>
<p>(default)</p>
</td>
- <td><img src="images/FillLayoutSampleHorizontal.jpg" /></td>
- <td><img src="images/FillLayoutSampleHorizontalResized.jpg" /></td>
+ <td><img src="images/FillLayoutSampleHorizontal.png" /></td>
+ <td><img src="images/FillLayoutSampleHorizontalResized.png" /></td>
</tr>
<tr>
<td><code>fillLayout.type = SWT.VERTICAL</code></td>
- <td><img src="images/FillLayoutSampleVertical.jpg" /></td>
- <td><img src="images/FillLayoutSampleVerticalResized.jpg" /></td>
+ <td><img src="images/FillLayoutSampleVertical.png" /></td>
+ <td><img src="images/FillLayoutSampleVerticalResized.png" /></td>
</tr>
</table>
@@ -267,7 +267,7 @@
and spacing. The margin and spacing fields are shown in the following
diagram.</p>
-<img src="images/RowLayoutMargins.jpg" />
+<img src="images/RowLayoutMargins.png" />
<h3>RowLayout Examples</h3>
@@ -310,36 +310,36 @@
rowLayout.type = SWT.HORIZONTAL;</pre>
<p>(defaults)</p>
</td>
- <td><img src="images/RowLayoutSample01.jpg" /></td>
- <td><img src="images/RowLayoutSample01Resized.jpg" /><p>and</p><img src="images/RowLayoutSample01ResizedNarrower.jpg" /></td>
+ <td><img src="images/RowLayoutSample01.png" /></td>
+ <td><img src="images/RowLayoutSample01Resized.png" /><p>and</p><img src="images/RowLayoutSample01ResizedNarrower.png" /></td>
</tr>
<tr>
<td><pre>wrap = false</pre>
<p>(clips if not enough space)</p>
</td>
- <td><img src="images/RowLayoutSample02.jpg" /></td>
- <td><img src="images/RowLayoutSample02Resized.jpg" /></td>
+ <td><img src="images/RowLayoutSample02.png" /></td>
+ <td><img src="images/RowLayoutSample02Resized.png" /></td>
</tr>
<tr>
<td><pre>pack = false</pre>
<p>(all widgets are the same size)</p>
</td>
- <td><img src="images/RowLayoutSample03.jpg" /></td>
- <td><img src="images/RowLayoutSample03Resized.jpg" /></td>
+ <td><img src="images/RowLayoutSample03.png" /></td>
+ <td><img src="images/RowLayoutSample03Resized.png" /></td>
</tr>
<tr>
<td><pre>justify = true</pre>
<p>(widgets are spread across the available space)</p>
</td>
- <td><img src="images/RowLayoutSample04.jpg" /></td>
- <td><img src="images/RowLayoutSample04Resized.jpg" /></td>
+ <td><img src="images/RowLayoutSample04.png" /></td>
+ <td><img src="images/RowLayoutSample04Resized.png" /></td>
</tr>
<tr>
<td><pre>type = SWT.VERTICAL</pre>
<p>(widgets are arranged vertically in columns)</p>
</td>
- <td><img src="images/RowLayoutSample05.jpg" /></td>
- <td><img src="images/RowLayoutSample05Resized.jpg" /></td>
+ <td><img src="images/RowLayoutSample05.png" /></td>
+ <td><img src="images/RowLayoutSample05Resized.png" /></td>
</tr>
</table>
@@ -383,7 +383,7 @@
<p>Here is what you see when you run this code.</p>
-<img src="images/RowDataExample.jpg" />
+<img src="images/RowDataExample.png" />
<h2>GridLayout</h2>
@@ -431,9 +431,9 @@
<td><pre>numColumns = 3</pre></td>
</tr>
<tr>
- <td><img src="images/GridLayoutSampleNumColumns1.jpg" /></td>
- <td><img src="images/GridLayoutSampleNumColumns2.jpg" /></td>
- <td><img src="images/GridLayoutSampleNumColumns3.jpg" /></td>
+ <td><img src="images/GridLayoutSampleNumColumns1.png" /></td>
+ <td><img src="images/GridLayoutSampleNumColumns2.png" /></td>
+ <td><img src="images/GridLayoutSampleNumColumns3.png" /></td>
</tr>
</table>
@@ -443,7 +443,7 @@
that in the absence of further instruction, widgets are left-justified
in their columns).</p>
-<img src="images/GridLayoutSampleEqualWidth.jpg" />
+<img src="images/GridLayoutSampleEqualWidth.png" />
<p>The <code>marginWidth</code>, <code>marginHeight</code>, <code>horizontalSpacing</code>,
and <code>verticalSpacing</code> fields in a <code>GridLayout</code> are
@@ -475,7 +475,7 @@
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
button1.setLayoutData(gridData);</pre> <img
- src="images/GridDataSampleHorizontalFill.jpg" />
+ src="images/GridDataSampleHorizontalFill.png" />
<p>One final note about <code>GridData</code> objects before we get
into their fields: do not reuse <code>GridData</code> objects. Every
@@ -507,19 +507,19 @@
<td><pre>horizontalAlignment = GridData.BEGINNING</pre>
<p>(default)</p>
</td>
- <td><img src="images/GridDataSampleBeginning.jpg" /></td>
+ <td><img src="images/GridDataSampleBeginning.png" /></td>
</tr>
<tr>
<td><pre>horizontalAlignment = GridData.CENTER</pre></td>
- <td><img src="images/GridDataSampleCenter.jpg" /></td>
+ <td><img src="images/GridDataSampleCenter.png" /></td>
</tr>
<tr>
<td><pre>horizontalAlignment = GridData.END</pre></td>
- <td><img src="images/GridDataSampleEnd.jpg" /></td>
+ <td><img src="images/GridDataSampleEnd.png" /></td>
</tr>
<tr>
<td><pre>horizontalAlignment = GridData.FILL</pre></td>
- <td><img src="images/GridDataSampleFill.jpg" /></td>
+ <td><img src="images/GridDataSampleFill.png" /></td>
</tr>
</table>
@@ -532,7 +532,7 @@
<pre>GridData gridData = new GridData();
gridData.horizontalIndent = 4;
button5.setLayoutData(gridData);</pre> <img
- src="images/GridDataSampleIndent.jpg" />
+ src="images/GridDataSampleIndent.png" />
<p>The <code>horizontalSpan</code> and <code>verticalSpan</code>
fields let widgets occupy more than one grid cell. They are often used
@@ -543,7 +543,7 @@
gridData.horizontalAlignment = GridData.FILL;
gridData.horizontalSpan = 2;
button5.setLayoutData(gridData);</pre> <img
- src="images/GridDataSampleSpan01.jpg" />
+ src="images/GridDataSampleSpan01.png" />
<p>If we decide to make "Wide Button 2" span two cells instead, we
would end up with this:</p>
@@ -552,7 +552,7 @@
gridData.horizontalAlignment = GridData.FILL;
gridData.horizontalSpan = 2;
button2.setLayoutData(gridData);</pre> <img
- src="images/GridDataSampleSpan02.jpg" />
+ src="images/GridDataSampleSpan02.png" />
<p>Or we could make "Button 3" span two cells vertically:</p>
@@ -560,7 +560,7 @@
gridData.verticalAlignment = GridData.FILL;
gridData.verticalSpan = 2;
button3.setLayoutData(gridData);</pre> <img
- src="images/GridDataSampleSpan03.jpg" />
+ src="images/GridDataSampleSpan03.png" />
<p>The <code>grabExcessHorizontalSpace</code> and <code>grabExcessVerticalSpace</code>
fields are typically used for larger widgets such as <code>Text,</code>
@@ -575,12 +575,12 @@
resizing. For a simple example, let's reuse the previous example where
"Button 3" spanned two cells vertically. Here it is again:</p>
-<img src="images/GridDataSampleSpan03.jpg" />
+<img src="images/GridDataSampleSpan03.png" />
<p>If we resize this window, the only thing that happens is that the
window gets bigger:</p>
-<img src="images/GridDataSampleSpan03Resized.jpg" />
+<img src="images/GridDataSampleSpan03Resized.png" />
<p>Now we will tell "Button 3" to grab excess horizontal and vertical
space, and "B1" and "B4" to fill vertically (without grabbing), and we
@@ -611,7 +611,7 @@
button4.setLayoutData(gridData);
new Button(shell, SWT.PUSH).setText("Button 5");</pre> <img
- src="images/GridDataSampleGrab01.jpg" />
+ src="images/GridDataSampleGrab01.png" />
<p>This time, "Button 3" grew in both directions, and "B4" grew
vertically. The other buttons stayed their original sizes. Because
@@ -694,14 +694,14 @@
}
}</pre>
-<p><img src="images/GridLayoutGrabExcess.jpg" /></p>
+<p><img src="images/GridLayoutGrabExcess.png" /></p>
<p>When resized, the single line (top-most) <code>Text</code> grows
to consume all available horizontal space, and the second <code>Text</code>
and the <code>List</code> grow to consume all remaining space (both
vertically and horizontally):</p>
-<p><img src="images/GridLayoutGrabExcessResized.jpg" /></p>
+<p><img src="images/GridLayoutGrabExcessResized.png" /></p>
<p>One final point to note about grabbing: if a widget is set to
grab excess horizontal space and its parent <code>Composite</code> grows
@@ -729,8 +729,8 @@
<p>The natural size of "Button 5" is shown in the window on the left,
below, and the 70-pixel wide, 40-pixel tall "Button 5" is on the right.</p>
-<img src="images/GridLayoutSampleNumColumns3.jpg" /> <img
- src="images/GridDataSampleSpan04.jpg" />
+<img src="images/GridLayoutSampleNumColumns3.png" /> <img
+ src="images/GridDataSampleSpan04.png" />
<p>Note, however, that if the <code>horizontalAlignment</code> of
"Button 5" was <code>FILL</code>, then the <code>GridLayout</code> would not have been
@@ -938,11 +938,11 @@
<p>Here is what the window looks like after Mary Smith enters
Bifford in the dog show:</p>
-<img src="images/DogShowBiff.jpg" />
+<img src="images/DogShowBiff.png" />
<p>If this window is resized larger, the layout adjusts as follows:</p>
-<img src="images/DogShowBiffResized.jpg" />
+<img src="images/DogShowBiffResized.png" />
<p>Notice the following:</p>
<ul>
@@ -1063,7 +1063,7 @@
formData.left = new FormAttachment(20,0);
formData.right = new FormAttachment(100,-3);
button1.setLayoutData(formData);</pre> <img
- src="images/FormLayoutSample01.jpg" />
+ src="images/FormLayoutSample01.png" />
<p>A <code>FormAttachment</code> object defines the attachment of a
specific side of a widget. There are many ways that a side can be
@@ -1132,14 +1132,14 @@
<pre>FormData formData = new FormData();
formData.top = new FormAttachment(50,0);
button1.setLayoutData(formData);</pre> <img
- src="images/FormLayoutSamplePosition50.jpg" />
+ src="images/FormLayoutSamplePosition50.png" />
<p>This sets the top of the <code>Button</code> to a position that
represents 50% of the height of the parent <code>Composite</code> (a <code>Shell</code>),
with an offset of 0. When the shell is resized, the top side of the <code>Button</code>
will still be at 50%, like so:</p>
-<img src="images/FormLayoutSamplePosition50Resized.jpg" />
+<img src="images/FormLayoutSamplePosition50Resized.png" />
<p>If we chose to set an offset value, the top side of the <code>Button</code>
would have been set to 50% of the <code>Composite</code> plus or minus
@@ -1167,7 +1167,7 @@
<pre>FormData formData = new FormData();
formData.right = new FormAttachment(100,-5);
button1.setLayoutData(formData);</pre> <img
- src="images/FormLayoutSampleParent100.jpg" />
+ src="images/FormLayoutSampleParent100.png" />
<p>This attaches the right side of the <code>Button</code> to the
right edge of the parent (a <code>Shell</code>), with an offset of five
@@ -1177,7 +1177,7 @@
negative. When the <code>Shell</code> is resized, the <code>Button</code>
will always be five pixels away from the right edge:</p>
-<img src="images/FormLayoutSampleParent100Resized.jpg" />
+<img src="images/FormLayoutSampleParent100Resized.png" />
<h3>Attaching to Another Widget</h3>
<p>The third type of attachment is to attach the side of the widget
@@ -1196,7 +1196,7 @@
FormData formData2 = new FormData();
formData2.top = new FormAttachment(button1,10);
button2.setLayoutData(formData2);</pre> <img
- src="images/FormLayoutSampleAttachWidget01.jpg" />
+ src="images/FormLayoutSampleAttachWidget01.png" />
<p>This example attaches the top of button2 to the bottom of
button1. Note that when the window is resized, button1 will move so that
@@ -1204,7 +1204,7 @@
button2 will move so that its top side is always 10 pixels below the
adjacent (bottom) side of button1.</p>
-<img src="images/FormLayoutSampleAttachWidget01Resized.jpg" />
+<img src="images/FormLayoutSampleAttachWidget01Resized.png" />
<p>While the default is to attach the side of a widget to the
adjacent side of a control, <code>FormAttachment</code>s can also be
@@ -1232,7 +1232,7 @@
formData2.left = new FormAttachment(button1,5);
formData2.top = new FormAttachment(button1,0,SWT.TOP);
button2.setLayoutData(formData2);</pre> <img
- src="images/FormLayoutSampleAttachWidget02.jpg" />
+ src="images/FormLayoutSampleAttachWidget02.png" />
<p>The final way to attach a widget to another control is to center
it on the other control. This is useful when the widgets are different
@@ -1255,7 +1255,7 @@
formData2.left = new FormAttachment (button1,5);
formData2.top = new FormAttachment (button1,0,SWT.CENTER);
button2.setLayoutData(formData2);</pre> <img
- src="images/FormLayoutSampleAttachWidget03.jpg" />
+ src="images/FormLayoutSampleAttachWidget03.png" />
<p>Using the different types of <code>FormAttachment</code> allows
layouts to be defined in many different ways. <code>FormLayout</code>
@@ -1316,7 +1316,7 @@
<code>button4</code> and <code>button5</code> are attached to the bottom of the layout with a five
pixel offset.</p>
-<img src="images/FormLayoutSample5Buttons01.jpg" />
+<img src="images/FormLayoutSample5Buttons01.png" />
<p>When we resize, the attachments become more visible. <code>button1</code> is
attached on the left and the right side, so when the window is resized,
@@ -1330,7 +1330,7 @@
shrink, but it will always stay five pixels away from <code>button4</code> on the left,
and five pixels away from the bottom of the window.</p>
-<img src="images/FormLayoutSample5Buttons01Resized.jpg" />
+<img src="images/FormLayoutSample5Buttons01Resized.png" />
<h3>A Complex FormLayout Example</h3>
@@ -1560,12 +1560,12 @@
<p>This is what the layout looks like after Mary Smith enters
Bifford in the dog show:</p>
-<img src="images/DogShowBiffWithFormLayout.jpg" />
+<img src="images/DogShowBiffWithFormLayout.png" />
<p>When the window is resized, the same controls are resized as in
the <code>GridLayout</code> example.</p>
-<img src="images/DogShowBiffWithFormLayoutResized.jpg" />
+<img src="images/DogShowBiffWithFormLayoutResized.png" />
<h2>Writing Your Own Layout Class</h2>
@@ -1834,8 +1834,8 @@
the window with the mouse will also make the buttons wider (or narrower)
but they do not grow taller.</p>
-<img src="images/CustomLayout.jpg" /> <img
- src="images/CustomLayoutResized.jpg" />
+<img src="images/CustomLayout.png" /> <img
+ src="images/CustomLayoutResized.png" />
<h3>Overriding Composite</h3>
