Examples with StyledText org.eclipse.swt.custom.StyledText used on opensource projects

Example 91 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractTextEditor method setFont.

/**
 * Sets the font for the given viewer sustaining selection and scroll position.
 *
 * @param sourceViewer the source viewer
 * @param font the font
 * @since 2.0
 */
private void setFont(ISourceViewer sourceViewer, Font font) {
    if (sourceViewer.getDocument() != null) {
        ISelectionProvider provider = sourceViewer.getSelectionProvider();
        ISelection selection = provider.getSelection();
        int topIndex = sourceViewer.getTopIndex();
        StyledText styledText = sourceViewer.getTextWidget();
        Control parent = styledText;
        if (sourceViewer instanceof ITextViewerExtension) {
            ITextViewerExtension extension = (ITextViewerExtension) sourceViewer;
            parent = extension.getControl();
        }
        parent.setRedraw(false);
        styledText.setFont(font);
        if (fVerticalRuler instanceof IVerticalRulerExtension) {
            IVerticalRulerExtension e = (IVerticalRulerExtension) fVerticalRuler;
            e.setFont(font);
        }
        provider.setSelection(selection);
        sourceViewer.setTopIndex(topIndex);
        if (parent instanceof Composite) {
            Composite composite = (Composite) parent;
            composite.layout(true);
        }
        parent.setRedraw(true);
    } else {
        StyledText styledText = sourceViewer.getTextWidget();
        styledText.setFont(font);
        if (fVerticalRuler instanceof IVerticalRulerExtension) {
            IVerticalRulerExtension e = (IVerticalRulerExtension) fVerticalRuler;
            e.setFont(font);
        }
    }
}

Example 92 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractTextEditor method setBlockSelectionMode.

/**
 * @see org.eclipse.ui.texteditor.ITextEditorExtension5#setBlockSelectionMode(boolean)
 * @since 3.5
 */
@Override
public void setBlockSelectionMode(boolean enable) {
    if (!isBlockSelectionModeSupported())
        return;
    ISourceViewer viewer = getSourceViewer();
    if (viewer != null) {
        StyledText styledText = viewer.getTextWidget();
        if (styledText != null) {
            /*
				 * Font switching. block selection mode needs a monospace font.
				 *  - set the font _before enabling_ block selection mode in order to maintain the
				 * selection
				 * - revert the font _after disabling_ block selection mode in order to maintain the
				 * selection
				 */
            if (enable) {
                Font blockFont = JFaceResources.getFont(BLOCK_SELECTION_MODE_FONT);
                Font normalFont = styledText.getFont();
                if (!blockFont.equals(normalFont) && !normalFont.getFontData()[0].equals(blockFont.getFontData()[0])) {
                    setFont(viewer, blockFont);
                    disposeFont();
                    updateCaret();
                }
                // we must unset word wrap before we can set block selection
                if (isWordWrapEnabled()) {
                    setWordWrap(false);
                }
            }
            styledText.setBlockSelection(enable);
            if (!enable) {
                initializeViewerFont(viewer);
                updateCaret();
            }
        }
    }
}

Example 93 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractTextEditor method initializeViewerColors.

/**
 * Initializes the fore- and background colors of the given viewer for both
 * normal and selected text.
 *
 * @param viewer the viewer to be initialized
 * @since 2.0
 */
protected void initializeViewerColors(ISourceViewer viewer) {
    IPreferenceStore store = getPreferenceStore();
    if (store != null) {
        StyledText styledText = viewer.getTextWidget();
        // ----------- foreground color --------------------
        Color color = store.getBoolean(PREFERENCE_COLOR_FOREGROUND_SYSTEM_DEFAULT) ? null : createColor(store, PREFERENCE_COLOR_FOREGROUND, styledText.getDisplay());
        styledText.setForeground(color);
        if (fForegroundColor != null)
            fForegroundColor.dispose();
        fForegroundColor = color;
        // ---------- background color ----------------------
        color = store.getBoolean(PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT) ? null : createColor(store, PREFERENCE_COLOR_BACKGROUND, styledText.getDisplay());
        styledText.setBackground(color);
        if (fBackgroundColor != null)
            fBackgroundColor.dispose();
        fBackgroundColor = color;
        // ----------- selection foreground color --------------------
        color = store.getBoolean(PREFERENCE_COLOR_SELECTION_FOREGROUND_SYSTEM_DEFAULT) ? null : createColor(store, PREFERENCE_COLOR_SELECTION_FOREGROUND, styledText.getDisplay());
        styledText.setSelectionForeground(color);
        if (fSelectionForegroundColor != null)
            fSelectionForegroundColor.dispose();
        fSelectionForegroundColor = color;
        // ---------- selection background color ----------------------
        color = store.getBoolean(PREFERENCE_COLOR_SELECTION_BACKGROUND_SYSTEM_DEFAULT) ? null : createColor(store, PREFERENCE_COLOR_SELECTION_BACKGROUND, styledText.getDisplay());
        styledText.setSelectionBackground(color);
        if (fSelectionBackgroundColor != null)
            fSelectionBackgroundColor.dispose();
        fSelectionBackgroundColor = color;
    }
}

Example 94 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractTextEditor method getCursorPosition.

/**
 * Returns a description of the cursor position.
 *
 * @return a description of the cursor position
 * @since 2.0
 */
protected String getCursorPosition() {
    if (fSourceViewer == null)
        return fErrorLabel;
    StyledText styledText = fSourceViewer.getTextWidget();
    int caret = widgetOffset2ModelOffset(fSourceViewer, styledText.getCaretOffset());
    IDocument document = fSourceViewer.getDocument();
    if (document == null)
        return fErrorLabel;
    try {
        int line = document.getLineOfOffset(caret);
        int lineOffset = document.getLineOffset(line);
        int tabWidth = styledText.getTabs();
        int column = 0;
        for (int i = lineOffset; i < caret; i++) if ('\t' == document.getChar(i))
            column += tabWidth - (tabWidth == 0 ? 0 : column % tabWidth);
        else
            column++;
        fLineLabel.fValue = line + 1;
        fColumnLabel.fValue = column + 1;
        return NLSUtility.format(fPositionLabelPattern, fPositionLabelPatternArguments);
    } catch (BadLocationException x) {
        return fErrorLabel;
    }
}

Example 95 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractTextEditor method doRestoreState.

/**
 * Restores this editor's state using the given memento.
 * <p>
 * Subclasses may extend or override this method.</p>
 *
 * @param memento the saved state of this editor
 * @since 3.3
 */
protected void doRestoreState(IMemento memento) {
    Integer offset = memento.getInteger(TAG_SELECTION_OFFSET);
    if (offset == null)
        return;
    Integer length = memento.getInteger(TAG_SELECTION_LENGTH);
    if (length == null)
        return;
    doSetSelection(new TextSelection(offset.intValue(), length.intValue()));
    final StyledText textWidget = fSourceViewer.getTextWidget();
    Integer topPixel = memento.getInteger(TAG_SELECTION_TOP_PIXEL);
    if (topPixel != null)
        textWidget.setTopPixel(topPixel.intValue());
    Integer horizontalPixel = memento.getInteger(TAG_SELECTION_HORIZONTAL_PIXEL);
    if (horizontalPixel != null)
        textWidget.setHorizontalPixel(horizontalPixel.intValue());
}