【发布时间】:2017-07-06 07:53:43
【问题描述】:
我目前正在做一个项目,但我找不到任何解决方案。我希望从该行内一个特定列的宽度动态计算 Gridpane 行高。整个 Gridpane 必须可调整大小,其余可用空间应位于下方的另一行,以便根据该单元格内的元素保留该单元格的纵横比。男孩有什么想法吗?
public class GridPaneControl extends GridPane {
private int index;
private Label startLabel;
private Label endLabel;
private HBox inputCellsContainer;
private HBox outputCellsContainer;
private Button inputOutputNextButton;
private Button inputOutputPreviousButton;
public GridPaneControl() {
setGridLinesVisible(true);
initialization();
ColumnConstraints cc0 = new ColumnConstraints();
cc0.setMaxWidth(Double.MAX_VALUE);
cc0.setHgrow(Priority.NEVER);
ColumnConstraints cc1 = new ColumnConstraints();
cc1.setMaxWidth(Double.MAX_VALUE);
ColumnConstraints cc2 = new ColumnConstraints();
cc2.setMaxWidth(Double.MAX_VALUE);
cc2.setHgrow(Priority.NEVER);
RowConstraints rc0 = new RowConstraints();
rc0.setVgrow(Priority.ALWAYS);
rc0.setFillHeight(false);
rc0.setMaxHeight(Double.MAX_VALUE);
RowConstraints rc1 = new RowConstraints();
rc1.setVgrow(Priority.ALWAYS);
rc1.setFillHeight(false);
rc1.setMaxHeight(Double.MAX_VALUE);
RowConstraints rc2 = new RowConstraints();
rc2.setVgrow(Priority.NEVER);
RowConstraints rc3 = new RowConstraints();
rc3.setVgrow(Priority.ALWAYS);
getColumnConstraints().addAll(cc0, cc1, cc2);
getRowConstraints().addAll(rc0, rc1, rc2, rc3);
}
private void initialization() {
inputCellsContainer = new HBox(0);
outputCellsContainer = new HBox(0);
GridPane.setValignment(inputCellsContainer, VPos.BOTTOM);
GridPane.setValignment(outputCellsContainer, VPos.TOP);
inputOutputPreviousButton = new Button("<<");
inputOutputPreviousButton.maxWidth(Double.MAX_VALUE);
GridPane.setHgrow(inputOutputPreviousButton, Priority.NEVER);
GridPane.setVgrow(inputOutputPreviousButton, Priority.NEVER);
GridPane.setMargin(inputOutputPreviousButton, new Insets(5));
inputOutputNextButton = new Button(">>");
inputOutputNextButton.maxWidth(Double.MAX_VALUE);
GridPane.setHgrow(inputOutputNextButton, Priority.NEVER);
GridPane.setVgrow(inputOutputNextButton, Priority.NEVER);
GridPane.setMargin(inputOutputNextButton, new Insets(5));
for (int i = 0; i < 32; i++) {
InputOutputCell cellIn = new InputOutputCell(String.format("%02X", i), Color.AQUA, 0);
InputOutputCell cellOut = new InputOutputCell(String.format("%02X", i), Color.BEIGE, 1);
HBox.setHgrow(cellIn, Priority.ALWAYS);
HBox.setHgrow(cellOut, Priority.ALWAYS);
inputCellsContainer.getChildren().add(cellIn);
outputCellsContainer.getChildren().add(cellOut);
}
GridPane.setHgrow(inputCellsContainer, Priority.ALWAYS);
GridPane.setHgrow(outputCellsContainer, Priority.ALWAYS);
GridPane.setVgrow(inputCellsContainer, Priority.ALWAYS);
GridPane.setVgrow(outputCellsContainer, Priority.ALWAYS);
startLabel = new Label("0");
endLabel = new Label("31");
GridPane.setHalignment(startLabel, HPos.LEFT);
GridPane.setHalignment(endLabel, HPos.RIGHT);
this.add(inputOutputPreviousButton, 0, 0, 1, 2);
this.add(inputCellsContainer, 1, 0);
this.add(outputCellsContainer, 1, 1);
this.add(inputOutputNextButton, 2, 0, 1, 2);
this.add(startLabel, 1, 2);
this.add(endLabel, 1, 2);
}
public int getIndex() {
return index;
}
private class InputOutputCell extends StackPane {
@FXML
Text text;
@FXML
Rectangle rectangle;
public InputOutputCell(String text, Color color, int type) {
setMinSize(0, 0);
this.text = new Text(text);
rectangle = new Rectangle();
if (type == 0) {
rectangle.widthProperty().bind(inputCellsContainer.widthProperty().divide(32));
rectangle.heightProperty().bind(inputCellsContainer.widthProperty().divide(32));
} else {
rectangle.widthProperty().bind(outputCellsContainer.widthProperty().divide(32));
rectangle.heightProperty().bind(outputCellsContainer.widthProperty().divide(32));
}
rectangle.maxWidth(Double.MAX_VALUE);
rectangle.maxHeight(Double.MAX_VALUE);
rectangle.setArcHeight(10);
rectangle.setArcWidth(10);
rectangle.setFill(color);
rectangle.setStroke(Color.BLACK);
getChildren().addAll(rectangle, this.text);
}
public void setText(String text) {
this.text.setText(text);
}
public String getText() {
return this.text.getText();
}
}
}
我希望单元格 1,0 和 1,1 可以调整大小,并且通过增加它们的宽度可以清楚地看到第 0 行和第 1 行的高度不应该平均增加。如果还剩下任何高度,我希望第 3 行占据它,因为第 2 行根本不应该增长到高度。
【问题讨论】:
-
您应该尝试用更笼统的术语解释您的目标,因为您假设 GridPane 是解决您的问题的正确方法,它可能是也可能不是。
-
好的,我可以试试。我希望将网格窗格的行高动态调整为其中一列的 1/32 宽度。如果该列的宽度再次发生变化,我希望重新计算该行的宽度。这有可能吗?