Java Label.setText方法代码示例

import com.codename1.ui.Label; //导入方法依赖的package包/类
/**
 * Sets the specified text transform to the component and all its children
 * 
 * @param cmp The component to work on
 * @param transformType The text transform type, one of the TEXT_TRANSFORM_* constants
 */
private void setTextTransformRecursive(Component cmp,int transformType) {
    if (cmp instanceof Container) {
        Container cont=(Container)cmp;
        for(int i=0;i<cont.getComponentCount();i++) {
            setTextTransformRecursive(cont.getComponentAt(i), transformType);
        }
    } else if (cmp instanceof Label) {
        Label label=(Label)cmp;
        switch(transformType) {
            case TEXT_TRANSFORM_UPPERCASE:
                label.setText(label.getText().toUpperCase());
                break;
            case TEXT_TRANSFORM_LOWERCASE:
                label.setText(label.getText().toLowerCase());
                break;
            case TEXT_TRANSFORM_CAPITALIZE:

                String text=label.getText();

                String newText="";
                boolean capNextLetter=true;
                for(int i=0;i<text.length();i++) {
                    char c=text.charAt(i);
                    if (CSSParser.isWhiteSpace(c)) {
                        capNextLetter=true;
                    } else if (capNextLetter) {
                        if ((c>='a') && (c<='z')) {
                            c-=32; // 'A' is ASCII 65, and 'a' is ASCII 97, difference: 32
                        }
                        capNextLetter=false;
                    }
                    newText+=c;
                }
                label.setText(newText);
                break;
        }
    }

}
 

import com.codename1.ui.Label; //导入方法依赖的package包/类
/**
 * Replaces a wrapped text with an unwrapped version.
 * This in fact removes all the labels that contains a single word each, and replaces them with one label that contains the whole text.
 * This way the label is not wrapped.
 *
 * @param label The first label of this text element (can be derived from ui but already fetched before the call)
 * @param ui The vector consisting all components (labels) that contain the text's words
 * @param newText The new text that should replace current components (unwrapped text without extra white spaces)
 * @param element The text element
 */
private void setNowrapText(Label label,Vector ui,String newText,HTMLElement element) {
    label.setText(newText);
    for(int i=1;i<ui.size();i++) {
        Component cmp=(Component)ui.elementAt(i);
        cmp.getParent().removeComponent(cmp);
    }
    if (label instanceof HTMLLink) {
        ((HTMLLink)label).childLinks=new Vector(); // Reset all associated link fragments so we don't have unneeded references
    }
    element.setAssociatedComponents(label);
    label.getParent().revalidate();
}
 

import com.codename1.ui.Label; //导入方法依赖的package包/类
/**
 * After a successful download, this handles placing the image on the label and resizing if necessary
 *
 * @param img The image
 * @param cmp The component to apply the image on
 * @param bgUnselected true if the image should be used as a background for the component when it is unselected, false otherwise
 * @param bgSelected true if the image should be used as a background for the component when it is selected, false otherwise
 * @param bgPressed true if the image should be used as a background for the component when it is pressed, false otherwise
 */
void handleImage(Image img,Component cmp,boolean bgUnselected,boolean bgSelected,boolean bgPressed) {
    boolean bg=false;
    if (bgUnselected) {
        cmp.getUnselectedStyle().setBgImage(img);
        bg=true;
    }
    if (bgSelected) {
        cmp.getSelectedStyle().setBgImage(img);
        bg=true;
    }
    if (bgPressed) {
        if (cmp instanceof HTMLLink) {
            ((HTMLLink)cmp).getPressedStyle().setBgImage(img);
        }
        bg=true;
    }
    if (bg) {
        cmp.repaint();
        return;
    }

    Label label = (Label)cmp;
    label.setText(""); // remove the alternate text (important to do here before checking the width/height)

    // Was set in HTMLComponent.handleImage if the width/height attributes were in the tag
    int width=label.getPreferredW()-label.getStyle().getPadding(Component.LEFT)-label.getStyle().getPadding(Component.RIGHT);
    int height=label.getPreferredH()-label.getStyle().getPadding(Component.TOP)-label.getStyle().getPadding(Component.BOTTOM);

    if (width!=0) {
        if (height==0) { // If only width was specified, height should be calculated so the image keeps its aspect ratio
            height=img.getHeight()*width/img.getWidth();
        }
    } else if (height!=0) {
        if (width==0) { // If only height was specified, width should be calculated so the image keeps its aspect ratio
            width=img.getWidth()*height/img.getHeight();
        }
    }

    if (width!=0) { // if any of width or height were not 0, the other one was set to non-zero above, so this check suffices
        img=img.scaled(width, height);
        width+=label.getStyle().getPadding(Component.LEFT)+label.getStyle().getPadding(Component.RIGHT);
        height+=label.getStyle().getPadding(Component.TOP)+label.getStyle().getPadding(Component.BOTTOM);
        label.setPreferredSize(new Dimension(width,height));
    }

    label.setIcon(img);

    htmlC.revalidate();
    if (label.getClientProperty(HTMLComponent.CLIENT_PROPERTY_IMG_BORDER)==null) { // if this property is defined, it means the image had a border already
        label.getUnselectedStyle().setBorder(null); //remove the border which is a sign the image is loading
    } else {
        int borderSize=((Integer)label.getClientProperty(HTMLComponent.CLIENT_PROPERTY_IMG_BORDER)).intValue();
        // Note that padding is set here and not in handleImage since we rely on the image size (which includes padding) to know if a width/height was specified
        label.getUnselectedStyle().setPadding(borderSize,borderSize,borderSize,borderSize);
        label.getSelectedStyle().setPadding(borderSize,borderSize,borderSize,borderSize);
    }

}