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diff --git a/lib/gs/doc/src/gs_chapter5.xmlsrc b/lib/gs/doc/src/gs_chapter5.xmlsrc deleted file mode 100644 index 1cad8d56bb..0000000000 --- a/lib/gs/doc/src/gs_chapter5.xmlsrc +++ /dev/null @@ -1,70 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE chapter SYSTEM "chapter.dtd"> - -<chapter> - <header> - <copyright> - <year>2000</year><year>2016</year> - <holder>Ericsson AB. All Rights Reserved.</holder> - </copyright> - <legalnotice> - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - - </legalnotice> - - <title>Fonts</title> - <prepared></prepared> - <docno></docno> - <date></date> - <rev></rev> - <file>gs_chapter5.xml</file> - </header> - - <section> - <title>The Font Model</title> - <p>Text related objects can be handled with the font option <c><![CDATA[{font,Font}]]></c>. A <c><![CDATA[Font]]></c> is represented as a two or three tuple:</p> - <list type="bulleted"> - <item><c><![CDATA[{Family,Size}]]></c></item> - <item><c><![CDATA[{Family,Style,Size}]]></c></item> - </list> - <p>Examples of fonts are: <c><![CDATA[{times,12}]]></c>, <c><![CDATA[{symbol,bold,18}]]></c>, <c><![CDATA[{courier,[bold,italic],6}]]></c>, <c><![CDATA[{screen,12}]]></c>.</p> - <p>The most important requirement with the font model is to ensure that there is always a "best possible" font present. For example, if an application tries to use the font <c><![CDATA[{times,17}]]></c> on a computer system which does not have this font available, the <c><![CDATA[gs]]></c> font model automatically substitutes <c><![CDATA[{times,16}]]></c>.</p> - <p>Note that GS requires that the following fonts are available if using an X-server display:</p> - <list type="bulleted"> - <item>fixed</item> - <item>-*-courier-*</item> - <item>-*-times-*</item> - <item>-*-helvetica-*</item> - <item>-*-symbol-*</item> - <item>"-*-new century schoolbook-"</item> - <item>-*-screen-*</item> - </list> - <p>To find out which font is actually chosen by the <c><![CDATA[gs]]></c>, use the option <c><![CDATA[{choose_font,Font}]]></c>. For example, the following situation might occur:</p> - <pre><![CDATA[ -1> <input>G=gs:start().</input> -{1,<0.20.0>} -2><input>gs:read(G,{choose_font,{times,38}}).</input> -{times,[],38} -3> <input>gs:read(G,{choose_font,{screen,italic,6}}).</input> -{courier,italic,6} -4> - ]]></pre> - <p>When programming with fonts, it is often necessary to find the size of a string which uses a specific font. <c><![CDATA[{font_wh,Font}]]></c> returns the width and height of any string and any font. The following example illustrates its usage:</p> - <marker id="gs_fig6"></marker> - <image file="images/ex15.gif"> - <icaption>Font Examples</icaption> - </image> - <codeinclude file="examples/ex15.erl" tag="" type="erl"></codeinclude> - </section> -</chapter> - |