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authorJakob Heher <jakob.heher@iaik.tugraz.at>2022-08-04 11:30:17 +0200
committerJakob Heher <jakob.heher@iaik.tugraz.at>2022-08-04 11:30:17 +0200
commit2624ca21244979af6118879dd4fd818f9c0b7383 (patch)
tree511ecae7b6e4e27b50cd1d30250234f429ac335c /pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils
parent3addc990ae79aaf17d9eda9b5967d9cb94fa79e1 (diff)
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SWT helper refactor:
- move out of StateComposite to its own SWTUtils class - refactor to reflection (better than one overload for each SWT type...)
Diffstat (limited to 'pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils')
-rw-r--r--pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/SWTUtils.java106
1 files changed, 106 insertions, 0 deletions
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/SWTUtils.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/SWTUtils.java
new file mode 100644
index 00000000..9b37117b
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/SWTUtils.java
@@ -0,0 +1,106 @@
+package at.asit.pdfover.gui.utils;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.eclipse.swt.graphics.Font;
+import org.eclipse.swt.graphics.FontData;
+import org.eclipse.swt.layout.FormAttachment;
+import org.eclipse.swt.layout.FormData;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.commons.Messages;
+import at.asit.pdfover.gui.composites.StateComposite;
+
+public final class SWTUtils {
+
+ private static final Logger log = LoggerFactory.getLogger(SWTUtils.class);
+
+ /* oh how i miss C++, and compile-time safety; this would be so much cleaner as a templated function */
+ private static void genericSetText(Object swtObj, String text) {
+ try {
+ Method m = swtObj.getClass().getMethod("setText", String.class);
+ m.invoke(swtObj, text);
+ } catch (NoSuchMethodException | IllegalAccessException e) {
+ log.error("Attempted to setLocalizedText on object of type {}, which does not have an accessible setText method", swtObj.getClass().getSimpleName(), e);
+ } catch (InvocationTargetException e) {
+ log.error("Failed to setLocalizedText on object of type {}", swtObj.getClass().getSimpleName(), e);
+ }
+
+ try {
+ // request re-layout if possible, changing the text content will change the bounding box
+ Method m = swtObj.getClass().getMethod("requestLayout");
+ m.invoke(swtObj);
+ } catch (NoSuchMethodException | IllegalAccessException e) {
+ // do nothing, this may not exist on every control we use
+ } catch (InvocationTargetException e) {
+ log.error("Failed to re-layout {}", swtObj.getClass().getSimpleName(), e);
+ }
+ }
+
+ public static void setLocalizedText(Object o, String messageKey) { genericSetText(o, Messages.getString(messageKey)); }
+ public static void setLocalizedText(Object o, String formatMessageKey, Object... formatArgs) { genericSetText(o, String.format(Messages.getString(formatMessageKey), formatArgs)); }
+
+ public static void disableEventDefault(Control c, int event) {
+ c.addListener(event, (Event e) -> { e.doit = false; });
+ }
+
+ public static void setFontHeight(Control c, int height) {
+ FontData[] fD = c.getFont().getFontData();
+ fD[0].setHeight(height);
+ Font font = new Font(c.getDisplay(), fD[0]);
+ c.setFont(font);
+ }
+
+ public static void setFontStyle(Control c, int style) {
+ FontData[] fD = c.getFont().getFontData();
+ fD[0].setStyle(style);
+ Font font = new Font(c.getDisplay(), fD[0]);
+ c.setFont(font);
+ }
+
+ public static class AnchorSetter {
+ private final Control c;
+ private final FormData fd = new FormData();
+ private AnchorSetter(Control c) { this.c = c; }
+
+ public void set() { this.c.setLayoutData(this.fd); }
+
+ public AnchorSetter height(int h) { fd.height = h; return this; }
+ public AnchorSetter width(int w) { fd.width = w; return this; }
+
+ public AnchorSetter top(FormAttachment a) { fd.top = a; return this; }
+ public AnchorSetter left(FormAttachment a) { fd.left = a; return this; }
+ public AnchorSetter right(FormAttachment a) { fd.right = a; return this; }
+ public AnchorSetter bottom(FormAttachment a) { fd.bottom = a; return this; }
+
+ public AnchorSetter top(Control control, int offset, int alignment) { return top(new FormAttachment(control, offset, alignment)); }
+ public AnchorSetter top(Control control, int offset) { return top(new FormAttachment(control, offset)); }
+ public AnchorSetter top(Control control) { return top(new FormAttachment(control)); }
+ public AnchorSetter top(int num, int offset) { return top(new FormAttachment(num, offset)); }
+ public AnchorSetter top(int num) { return top(new FormAttachment(num)); }
+
+ public AnchorSetter left(Control control, int offset, int alignment) { return left(new FormAttachment(control, offset, alignment)); }
+ public AnchorSetter left(Control control, int offset) { return left(new FormAttachment(control, offset)); }
+ public AnchorSetter left(Control control) { return left(new FormAttachment(control)); }
+ public AnchorSetter left(int num, int offset) { return left(new FormAttachment(num, offset)); }
+ public AnchorSetter left(int num) { return left(new FormAttachment(num)); }
+
+ public AnchorSetter right(Control control, int offset, int alignment) { return right(new FormAttachment(control, offset, alignment)); }
+ public AnchorSetter right(Control control, int offset) { return right(new FormAttachment(control, offset)); }
+ public AnchorSetter right(Control control) { return right(new FormAttachment(control)); }
+ public AnchorSetter right(int num, int offset) { return right(new FormAttachment(num, offset)); }
+ public AnchorSetter right(int num) { return right(new FormAttachment(num)); }
+
+ public AnchorSetter bottom(Control control, int offset, int alignment) { return bottom(new FormAttachment(control, offset, alignment)); }
+ public AnchorSetter bottom(Control control, int offset) { return bottom(new FormAttachment(control, offset)); }
+ public AnchorSetter bottom(Control control) { return bottom(new FormAttachment(control)); }
+ public AnchorSetter bottom(int num, int offset) { return bottom(new FormAttachment(num, offset)); }
+ public AnchorSetter bottom(int num) { return bottom(new FormAttachment(num)); }
+ }
+ public static AnchorSetter anchor(Control c) { return new AnchorSetter(c); }
+
+}