Open source Star Ruler 2 source code!

2018-07-17 14:15:37 +02:00
commit cc307720ff
4342 changed files with 2365070 additions and 0 deletions
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+import elements.BaseGuiElement;
+
+export GuiResizeHandle;
+
+class GuiResizeHandle : BaseGuiElement {
+	IGuiElement@ element;
+	bool dragging = false;
+	vec2i startPos;
+	vec2i startSize;
+	vec2i minSize(0, 0);
+	vec2i maxSize(INT_MAX, INT_MAX);
+	SkinStyle style = SS_ResizeHandle;
+
+	GuiResizeHandle(IGuiElement@ ParentElement, Alignment@ Align, IGuiElement@ drag = null) {
+		super(ParentElement, Align);
+		if(drag !is null)
+			@element = drag;
+		else
+			@element = ParentElement;
+		updateAbsolutePosition();
+	}
+
+	bool onMouseEvent(const MouseEvent& event, IGuiElement@ source) override {
+		switch(event.type) {
+			case MET_Button_Down:
+				if(event.button == 0) {
+					dragging = true;
+					startPos = mousePos;
+					startSize = element.size;
+					return true;
+				}
+			break;
+			case MET_Button_Up:
+				if(event.button == 0) {
+					dragging = false;
+					return true;
+				}
+			break;
+			case MET_Moved:
+				if(dragging) {
+					vec2i diff = mousePos - startPos;
+					vec2i newSize = startSize + diff;
+					newSize.x = clamp(newSize.x, minSize.x, maxSize.x);
+					newSize.y = clamp(newSize.y, minSize.y, maxSize.y);
+					element.size = newSize;
+					return true;
+				}
+			break;
+		}
+		return BaseGuiElement::onMouseEvent(event, source);
+	}
+
+	void draw() {
+		uint flags = SF_Normal;
+		if(dragging)
+			flags |= SF_Active;
+		skin.draw(style, flags, AbsolutePosition);
+		BaseGuiElement::draw();
+	}
+};