Example usage for com.vaadin.shared.ui AlignmentInfo isHorizontalCenter

Introduction

In this page you can find the example usage for com.vaadin.shared.ui AlignmentInfo isHorizontalCenter.

Prototype

public boolean isHorizontalCenter() 

Source Link

Usage

From source file:com.haulmont.cuba.web.toolkit.ui.client.fieldgrouplayout.CubaFieldGroupLayoutComponentSlot.java

License:Apache License

@Override
public void positionHorizontally(double currentLocation, double allocatedSpace, double marginRight) {
    if (!isCaptionInline()) {
        super.positionHorizontally(currentLocation, allocatedSpace, marginRight);
        return;// ww  w .j  a  v a2 s.com
    }

    // CAUTION copied from VLayoutSlot.positionHorizontally(~)

    Style style = wrapper.getStyle();

    double availableWidth = allocatedSpace;

    VCaption caption = getCaption();
    Style captionStyle = caption != null ? caption.getElement().getStyle() : null;
    int captionWidth = getCaptionWidth();

    boolean clearCaptionRight = false;

    boolean captionAboveCompnent;
    if (caption == null) {
        captionAboveCompnent = false;
        style.clearPaddingLeft();

        clearCaptionRight = true;
    } else {
        captionAboveCompnent = !caption.shouldBePlacedAfterComponent();
        if (!captionAboveCompnent) {
            availableWidth -= captionWidth;
            if (availableWidth < 0) {
                availableWidth = 0;
            }
            captionStyle.clearLeft();
            captionStyle.setRight(0, Style.Unit.PX);
            style.setPaddingRight(captionWidth, Style.Unit.PX);
        } else {
            availableWidth -= captionWidth;
            if (availableWidth < 0) {
                availableWidth = 0;
            }
            style.setPaddingLeft(captionWidth, Style.Unit.PX);
            captionStyle.setLeft(0, Style.Unit.PX);
            captionStyle.clearRight();

            clearCaptionRight = true;
        }
    }

    // Take into account right indicators
    double indicatorsWidth = 0;
    if (rightCaption != null) {
        indicatorsWidth = WidgetUtil.getRequiredWidth(rightCaption);
        availableWidth -= indicatorsWidth;
        if (availableWidth < 0) {
            availableWidth = 0;
        }
        style.setPaddingRight(indicatorsWidth, Style.Unit.PX);
    } else if (clearCaptionRight) {
        style.clearPaddingRight();
    }

    if (marginRight > 0) {
        style.setMarginRight(marginRight, Style.Unit.PX);
    } else {
        style.clearMarginRight();
    }

    if (isRelativeWidth()) {
        style.setPropertyPx("width", (int) availableWidth);
    } else {
        style.clearProperty("width");
    }

    double allocatedContentWidth = 0;
    if (isRelativeWidth()) {
        String percentWidth = getWidget().getElement().getStyle().getWidth();
        double percentage = parsePercent(percentWidth);
        allocatedContentWidth = availableWidth * (percentage / 100);
        reportActualRelativeWidth(Math.round((float) allocatedContentWidth));
    }

    AlignmentInfo alignment = getAlignment();
    if (!alignment.isLeft()) {
        double usedWidth;
        if (isRelativeWidth()) {
            if (isCaptionInline()) {
                usedWidth = allocatedContentWidth + indicatorsWidth + captionWidth;
            } else {
                usedWidth = allocatedContentWidth + indicatorsWidth;
            }
        } else {
            usedWidth = getWidgetWidth() + indicatorsWidth;
        }
        if (alignment.isHorizontalCenter()) {
            currentLocation += (allocatedSpace - usedWidth) / 2d;
            if (captionAboveCompnent) {
                captionStyle.setLeft(Math.round(usedWidth - captionWidth) / 2, Style.Unit.PX);
            }
        } else {
            currentLocation += (allocatedSpace - usedWidth);
            if (captionAboveCompnent) {
                captionStyle.setLeft(Math.round(usedWidth - captionWidth), Style.Unit.PX);
            }
        }
    } else {
        if (captionAboveCompnent) {
            captionStyle.setLeft(0, Style.Unit.PX);
        }
    }

    style.setLeft(Math.round(currentLocation), Style.Unit.PX);
}

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