Package com.formdev.flatlaf.util
Class HiDPIUtils
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- com.formdev.flatlaf.util.HiDPIUtils
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public class HiDPIUtils extends Object
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
HiDPIUtils.Painter
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Constructor Summary
Constructors Constructor Description HiDPIUtils()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static float
computeTextYCorrection(Graphics2D g)
When painting text on HiDPI screens and the JRE scales, then the text is painted too far down on some operating systems.static Graphics2D
createGraphicsTextYCorrection(Graphics2D g)
Creates a graphics object and applies Y correction to string drawing methods.static void
drawStringUnderlineCharAtWithYCorrection(JComponent c, Graphics2D g, String text, int underlinedIndex, int x, int y)
Applies Y correction and draws the given string at the specified location underlining the specified character.static void
drawStringWithYCorrection(JComponent c, Graphics2D g, String text, int x, int y)
Applies Y correction and draws the given string at the specified location.static void
paintAtScale1x(Graphics2D g, int x, int y, int width, int height, HiDPIUtils.Painter painter)
Paint at system scale factor 1x to avoid rounding issues at 125%, 150% and 175% scaling.static void
paintAtScale1x(Graphics2D g, JComponent c, HiDPIUtils.Painter painter)
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Method Detail
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paintAtScale1x
public static void paintAtScale1x(Graphics2D g, JComponent c, HiDPIUtils.Painter painter)
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paintAtScale1x
public static void paintAtScale1x(Graphics2D g, int x, int y, int width, int height, HiDPIUtils.Painter painter)
Paint at system scale factor 1x to avoid rounding issues at 125%, 150% and 175% scaling.Scales the given Graphics2D down to 100% and invokes the given painter passing scaled x, y, width and height.
Uses the same scaling calculation as the JRE uses.
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computeTextYCorrection
public static float computeTextYCorrection(Graphics2D g)
When painting text on HiDPI screens and the JRE scales, then the text is painted too far down on some operating systems. The higher the system scale factor is, the more.This method computes a correction value for the Y position.
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drawStringWithYCorrection
public static void drawStringWithYCorrection(JComponent c, Graphics2D g, String text, int x, int y)
Applies Y correction and draws the given string at the specified location. The provided component is used to query text properties and anti-aliasing hints.Use this method instead of
Graphics.drawString(String, int, int)
for correct anti-aliasing.Replacement for
SwingUtilities2.drawString()
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drawStringUnderlineCharAtWithYCorrection
public static void drawStringUnderlineCharAtWithYCorrection(JComponent c, Graphics2D g, String text, int underlinedIndex, int x, int y)
Applies Y correction and draws the given string at the specified location underlining the specified character. The provided component is used to query text properties and anti-aliasing hints.Replacement for
SwingUtilities2.drawStringUnderlineCharAt()
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createGraphicsTextYCorrection
public static Graphics2D createGraphicsTextYCorrection(Graphics2D g)
Creates a graphics object and applies Y correction to string drawing methods. If no Y correction is necessary, the passed in graphics object is returned.
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