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Aligned Labels
Aligned Label is a Container used to align all controls to the maximum width of a set of labels.
In Totalcross this component is called
AlignedLabelContainer.
AlignedLabelsSample.java
import totalcross.ui.AlignedLabelsContainer;
import totalcross.ui.Button;
import totalcross.ui.ComboBox;
import totalcross.ui.Edit;
import totalcross.ui.Label;
import totalcross.ui.ListBox;
import totalcross.ui.ScrollContainer;
import totalcross.util.UnitsConverter;
public class extends ScrollContainer {
private int gap = UnitsConverter.toPixels(10 + DP);
private boolean canInsert = true;
private ListBox lb;
private Label output;
@Override
public void initUI() {
uiAdjustmentsBasedOnFontHeightIsSupported = false;
setBackForeColors(0xF7F7F7, 0x000000);
setScrollBars(false, true);
String[] labels = { "Name", "Born date", "Telephone", "Address", "City", "Country" };
Edit edits[] = new Edit[5];
edits[0].transparentBackground = true;
Edit.useNativeNumericPad = true;
for (int i = 0; i < edits.length; i++) {
switch (i) {
case 1:
edits[i] = new Edit("99/99/9999");
edits[i].setMode(Edit.NORMAL, true);
edits[i].setValidChars(Edit.numbersSet);
edits[i].setKeyboard(Edit.KBD_NUMERIC);
break;
case 2:
edits[i] = new Edit("(99)9999-99999");
edits[i].setMode(Edit.NORMAL, true);
edits[i].setValidChars(Edit.numbersSet);
edits[i].setKeyboard(Edit.KBD_NUMERIC);
break;
default:
edits[i] = new Edit();
}
}
Label title = new Label("This is an AlignedLabelsContainer.\nAll the content will be automatically aligned.",
CENTER, 0, true);
title.autoSplit = true;
add(title, LEFT + gap, TOP + gap, FILL - gap, PREFERRED);
AlignedLabelsContainer alc = new AlignedLabelsContainer();
alc.uiAdjustmentsBasedOnFontHeightIsSupported = false;
alc.labelAlign = RIGHT;
alc.setInsets(gap, gap, 0, 0);
alc.setLabels(labels, edits[0].getPreferredHeight());
add(alc, LEFT, AFTER, FILL, PREFERRED);
int i;
for (i = 0; i < edits.length - 1; i++) {
alc.add(edits[i], LEFT + gap, alc.getLineY(i), FILL - gap, PREFERRED);
}
Button btnInsert = new Button("Insert data", (byte) 0);
btnInsert.setBackForeColors(0x4583d4, 0xFFFFFF);
alc.add(edits[edits.length - 1], LEFT + gap, alc.getLineY(i), edits[3].getWidth() / 2 - gap / 2, PREFERRED);
alc.add(btnInsert, RIGHT - gap, CENTER_OF, SAME, PREFERRED, edits[edits.length - 1]);
ComboBox cbCountry = new ComboBox(new String[] { "Brazil", "USA" });
alc.add(cbCountry, LEFT + gap, alc.getLineY(++i), SAME, PREFERRED, edits[edits.length - 1]);
Button btnClear = new Button("CLEAR DATA", (byte) 0);
alc.add(btnClear, RIGHT - gap, CENTER_OF, SAME, PREFERRED);
btnInsert.addPressListener(e -> {
if (canInsert) {
lb = new ListBox();
for (int j = 0; j < edits.length; j++)
lb.add(labels[j] + ": " + edits[j].getText());
if (cbCountry.getSelectedIndex() != -1)
lb.add("Country: " + cbCountry.getSelectedItem());
else
lb.add("Country: ");
output = new Label("OUTPUT:");
output.setFont(font.asBold());
add(output, CENTER, AFTER);
add(lb, CENTER, AFTER + gap, SCREENSIZE + 80, PREFERRED);
canInsert = false;
scrollToControl(lb);
} else {
lb.removeAll();
for (int j = 0; j < edits.length; j++)
lb.add(labels[j] + ": " + edits[j].getText());
if (cbCountry.getSelectedIndex() != -1)
lb.add("Country: " + cbCountry.getSelectedItem());
else
lb.add("Country: ");
}
// reposition(); reposition bugando o edit
});
btnClear.addPressListener(e -> {
// Cleaning the labels' content
for (Edit edit : edits)
edit.clear();
cbCountry.setSelectedIndex(-1);
if (!canInsert) {
// Cleaning the output
remove(lb);
remove(output);
canInsert = true;
}
});
}
}
Type | Name | Description |
Font | childrenFont | Set this member to the font you want to set to the controls that are added to this container |
int[ ] | foreColors | Sets an array with the same number of labels and the colors you want to show for each label |
int | labelAlign | The alignment of the labels |
ype | Name | Description |
Construtor | AlignedLabelsContainer( ) | Creates a new AlignedLabelsContainer without labels |
Construtor | AlignedLabelsContainer(String[] labels) | Creates a new AlignedLabelsContainer with the given labels |
Construtor | AlignedLabelsContainer(String[] labels, int vgap) | Creates a new AlignedLabelsContainer with the given labels and a vertical gap between the labels |
void | add(Control c) | Since this is an AlignedLabelsContainer, use this to add a label |
int | getLineY(int line) | Given a line (staring from 0), returns the y position |
void | setLabels(String[ ] labels, int vgap) | Sets the labels and the extra gap between rows (which may be 0) |
Last modified 4yr ago