Fixed the problem that icon buttons are too small when creating new ones.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28667 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/launchbox/LaunchButton.cpp

@@ -239,6 +239,44 @@ LaunchButton::MouseMoved(BPoint where, uint32 transit, const BMessage* dragMessa
 	IconButton::MouseMoved(where, transit, dragMessage);
 }
 
+
+BSize
+LaunchButton::MinSize()
+{
+	return PreferredSize();
+}
+
+
+BSize
+LaunchButton::PreferredSize()
+{
+	float minWidth = fIconSize;
+	float minHeight = fIconSize;
+
+	float hPadding = max_c(4.0, ceilf(minHeight / 4.0));
+	float vPadding = max_c(4.0, ceilf(minWidth / 4.0));
+
+	if (fLabel.CountChars() > 0) {
+		font_height fh;
+		GetFontHeight(&fh);
+		minHeight += ceilf(fh.ascent + fh.descent) + vPadding;
+		minWidth += StringWidth(fLabel.String()) + vPadding;
+	}
+
+	return BSize(minWidth + hPadding, minHeight + vPadding);
+}
+
+
+BSize
+LaunchButton::MaxSize()
+{
+	return PreferredSize();
+}
+
+
+// #pragma mark -
+
+
 // SetTo
 void
 LaunchButton::SetTo(const entry_ref* ref)

src/apps/launchbox/LaunchButton.h

@@ -40,6 +40,10 @@ class LaunchButton : public IconButton {
 	virtual	void				MouseMoved(BPoint where, uint32 transit,
 										   const BMessage* dragMessage);
 
+	virtual	BSize				MinSize();
+	virtual	BSize				PreferredSize();
+	virtual	BSize				MaxSize();
+
 	// LaunchButton
 			void				SetTo(const entry_ref* ref);
 			entry_ref*			Ref() const;