12 <concept id="GUID-DC59BEAD-0047-4D7A-96D1-C5E3EC4F982B" xml:lang="en"><title>Drawing |
12 <concept id="GUID-DC59BEAD-0047-4D7A-96D1-C5E3EC4F982B" xml:lang="en"><title>Drawing |
13 in traditional architecture</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
13 in traditional architecture</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
14 <p>The application framework calls<xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> when |
14 <p>The application framework calls<xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> when |
15 a control area needs to be updated on the display. Controls may implement <xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> or |
15 a control area needs to be updated on the display. Controls may implement <xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> or |
16 leave the drawing to their child controls. For more information on control |
16 leave the drawing to their child controls. For more information on control |
17 hierarchies, see <xref href="GUID-E244744F-4837-5B46-8E37-4666A28BF0B7-GENID-1-8-1-3-1-1-7-1-7-1-5-1.dita">The |
17 hierarchies, see <xref href="GUID-E244744F-4837-5B46-8E37-4666A28BF0B7.dita">The |
18 run-time control hierarchy</xref>. The platform calls <xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> for |
18 run-time control hierarchy</xref>. The platform calls <xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> for |
19 the parent control first, and then recursively for each control.</p> |
19 the parent control first, and then recursively for each control.</p> |
20 <p>Controls should override <xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> to draw |
20 <p>Controls should override <xref href="GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160.dita#GUID-B06F99BD-F032-3B87-AB26-5DD6EBE8C160/GUID-63295719-90A0-3D53-A643-0C52BF4068A1"><apiname>CCoeControl::Draw()</apiname></xref> to draw |
21 their content. The override should do nothing else and should be as fast as |
21 their content. The override should do nothing else and should be as fast as |
22 possible. For example, it is bad design to create fonts dynamically, and read |
22 possible. For example, it is bad design to create fonts dynamically, and read |