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127 lines
3.9 KiB
XML
127 lines
3.9 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<fpdoc-descriptions>
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<package name="lcl">
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<!--
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====================================================================
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IndustrialBase
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====================================================================
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-->
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<module name="IndustrialBase">
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<short>
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Contains the base class for a graphic control with an anti-aliasing setting.
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</short>
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<descr>
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<p>
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<file>industrialbase.pp</file> contains the base class for a graphic control
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with an anti-aliasing setting.
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</p>
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<p>
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<file>industrialbase.pp</file> is part of the Lazarus Component Library (LCL).
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</p>
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</descr>
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<element name="TIndustrialBase">
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<short>
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Implements the base class for a control with an anti-aliasing setting.
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</short>
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<descr>
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<p>
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<var>TIndustrialBase</var> is a <var>TGraphicControl</var> descendant. It
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extends the ancestor class with an AntiAliasingMode property which indicates
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if anti-aliasing is enabled on the Canvas for the control. The property
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emulates the behavior implemented in the TCustomImage / TImage component.
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</p>
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<p>
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TIndustrialBase is the ancestor for the TArrow class.
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</p>
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</descr>
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<seealso>
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<link id="#lcl.controls.TGraphicControl">TGraphicControl</link>
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<link id="#lcl.arrow.TArrow">TArrow</link>
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</seealso>
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</element>
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<!-- private -->
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<element name="TIndustrialBase.FAntiAliasingMode"/>
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<element name="TIndustrialBase.SetAntiAliasingMode"/>
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<element name="TIndustrialBase.SetAntiAliasingMode.AValue"/>
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<!-- protected -->
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<element name="TIndustrialBase.GraphicChanged">
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<short>
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Causes the control to be redrawn when it is parented and visible.
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</short>
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<descr>
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<p>
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Calls the Invalidate method to request an update to the control. No actions
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are performed in the method if Parent has not be assigned, or the control is
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not Visible.
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</p>
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<p>
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GraphicChanged is called when the value in AntiAliasingMode is updated.
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</p>
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</descr>
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<seealso>
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</seealso>
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</element>
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<!-- public -->
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<element name="TIndustrialBase.Create">
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<short>Constructor for the class instance.</short>
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<descr>
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<p>
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<var>Create</var> is the overridden constructor in
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<var>TIndustrialBase</var>. It calls the inherited method on entry to set the Owner for the class instance, and to allocate resources for the Canvas property.
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</p>
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<p>
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Create sets the default value for the AntiAliasingMode property to
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amDontCare; this causes the default setting for the platform or widgetset to
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be used. The initial bounds for the control are set in the method, and the
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control style flags are updated to remove the csSetCaption flag.
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</p>
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</descr>
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<seealso>
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<link id="TIndustrialBase.AntiAliasingMode"/>
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</seealso>
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</element>
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<element name="TIndustrialBase.Create.aOwner">
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<short>Owner of the class instance.</short>
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</element>
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<!-- published -->
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<element name="TIndustrialBase.AntiAliasingMode">
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<short>
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Indicates whether anti-aliased drawing is enabled for the control Canvas.
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</short>
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<descr>
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<p>
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<var>AntiAliasingMode</var> is a <var>TAntialiasingMode</var> property which
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indicates whether anti-aliased drawing is enabled for the control Canvas. It emulates the behavior implemented in the TCustomImage / TImage component.
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</p>
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<p>
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Anti-aliased drawing is a technique used to reduce the "stair-stepping"
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effect for edges or lines in an image. It combines the colors for adjacent
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pixels to soften a hard edge, and make the image look more realistic.
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</p>
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<p>
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The default value for the property is amDontCare, and indicates that the
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default setting for the platform or widgetset is used. Changing the property
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value causes GraphicChanged to be called to redraw the control when allowed.
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</p>
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<p>
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Descendent classes, like TArrow, use the value to configure the corresponding property in its control Canvas.
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</p>
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</descr>
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<seealso>
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<link id="#lcl.graphics.TAntialiasingMode">TAntialiasingMode</link>
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<link id="#lcl.graphics.TCanvas.AntialiasingMode">TCanvas.AntialiasingMode</link>
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</seealso>
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</element>
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</module> <!-- IndustrialBase -->
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</package>
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</fpdoc-descriptions>
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