@ -16,20 +16,17 @@ import java.awt.LayoutManager;
public class VerticalFlowLayout implements LayoutManager , java . io . Serializable {
/ * *
* This value indicates that each row of components
* should be left - justified .
* 竖直方向上将子组件设置为顶对齐方式
* /
public static final int TOP = 0 ;
/ * *
* This value indicates that each row of components
* should be centered .
* 竖直方向上将子组件设置为居中对齐方式
* /
public static final int CENTER = 1 ;
/ * *
* This value indicates that each row of components
* should be right - justified .
* 竖直方向上将子组件设置为底对齐方式
* /
public static final int BOTTOM = 2 ;
@ -71,7 +68,9 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
* /
int newAlign ; // This is the one we actually use
// 当列宽不一致时,是否需要左对齐(默认居中对齐)
/ * *
* 当列宽不一致时 , 是否需要将水平方向设置成左对齐 ( 默认水平方向为居中对齐 )
* /
boolean isAlignLeft = false ;
/ * *
@ -220,6 +219,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
* @param name the name of the component
* @param comp the component to be added
* /
@Override
public void addLayoutComponent ( String name , Component comp ) {
}
@ -230,6 +230,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
* @param comp the component to remove
* @see java . awt . Container # removeAll
* /
@Override
public void removeLayoutComponent ( Component comp ) {
}
@ -244,6 +245,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
* @see # minimumLayoutSize
* @see java . awt . Container # getPreferredSize
* /
@Override
public Dimension preferredLayoutSize ( Container target ) {
synchronized ( target . getTreeLock ( ) ) {
Dimension dim = new Dimension ( 0 , 0 ) ;
@ -255,7 +257,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
if ( m . isVisible ( ) ) {
Dimension d = m . getPreferredSize ( ) ;
firstVisibleComponent = di alWithDim4PreferredLayoutSize ( dim , d , firstVisibleComponent ) ;
firstVisibleComponent = de alWithDim4PreferredLayoutSize ( dim , d , firstVisibleComponent ) ;
}
}
Insets insets = target . getInsets ( ) ;
@ -265,7 +267,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
}
}
protected boolean di alWithDim4PreferredLayoutSize ( Dimension dim , Dimension d , boolean firstVisibleComponent ) {
protected boolean de alWithDim4PreferredLayoutSize ( Dimension dim , Dimension d , boolean firstVisibleComponent ) {
dim . width = Math . max ( dim . width , d . width ) ;
if ( firstVisibleComponent ) {
firstVisibleComponent = false ;
@ -289,6 +291,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
* @see java . awt . Container
* @see java . awt . Container # doLayout
* /
@Override
public Dimension minimumLayoutSize ( Container target ) {
synchronized ( target . getTreeLock ( ) ) {
Dimension dim = new Dimension ( 0 , 0 ) ;
@ -300,7 +303,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
if ( m . isVisible ( ) ) {
Dimension d = m . getMinimumSize ( ) ;
firstVisibleComponent = di alWithDim4MinimumLayoutSize ( dim , d , i , firstVisibleComponent ) ;
firstVisibleComponent = de alWithDim4MinimumLayoutSize ( dim , d , i , firstVisibleComponent ) ;
}
}
Insets insets = target . getInsets ( ) ;
@ -310,7 +313,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
}
}
protected boolean di alWithDim4MinimumLayoutSize ( Dimension dim , Dimension d , int i , boolean firstVisibleComponent ) {
protected boolean de alWithDim4MinimumLayoutSize ( Dimension dim , Dimension d , int i , boolean firstVisibleComponent ) {
dim . width = Math . max ( dim . width , d . width ) ;
if ( i > 0 ) {
dim . height + = vgap ;
@ -370,6 +373,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
* @see java . awt . Container
* @see java . awt . Container # doLayout
* /
@Override
public void layoutContainer ( Container target ) {
synchronized ( target . getTreeLock ( ) ) {
Insets insets = target . getInsets ( ) ;
@ -410,7 +414,9 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
protected int [ ] dealWithDim4LayoutContainer ( Container target , Insets insets , Dimension d , int x , int y , int roww , int start , int maxlen , int i , boolean ltr ) {
if ( ( y = = 0 ) | | ( ( y + d . height ) < = maxlen ) ) {
if ( y > 0 ) y + = vgap ;
if ( y > 0 ) {
y + = vgap ;
}
y + = d . height ;
roww = Math . max ( roww , d . width ) ;
} else {
@ -449,6 +455,7 @@ public class VerticalFlowLayout implements LayoutManager, java.io.Serializable {
*
* @return a string representation of this layout
* /
@Override
public String toString ( ) {
String str = "" ;
switch ( this . newAlign ) {