ui loader and some refactoring

src/framework/ui/uilayout.cpp

@@ -0,0 +1,124 @@
+/* The MIT License
+ *
+ * Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "uilayout.h"
+#include "uielement.h"
+
+int AnchorLine::getPos() const
+{
+    UILayoutPtr element = m_relativeElement.lock();
+    if(element) {
+        switch(m_anchorType) {
+            case ANCHOR_LEFT:
+                return element->getRect().left();
+            case ANCHOR_RIGHT:
+                return element->getRect().right();
+            case ANCHOR_TOP:
+                return element->getRect().top();
+            case ANCHOR_BOTTOM:
+                return element->getRect().bottom();
+            case ANCHOR_HORIZONTAL_CENTER:
+                return element->getRect().horizontalCenter();
+            case ANCHOR_VERTICAL_CENTER:
+                return element->getRect().verticalCenter();
+            default:
+                return 0;
+        }
+    }
+    logError("anchor line of an element have expired");
+    return 0;
+}
+
+void UILayout::setSize(const Size& size)
+{
+    m_rect.setSize(size);
+    recalculateAnchors();
+}
+
+void UILayout::setRect(const Rect& rect)
+{
+    m_rect = rect;
+    recalculateAnchors();
+}
+
+void UILayout::addAnchor(EAnchorType type, const AnchorLine& anchorLine)
+{
+    if(!anchorLine.isValid()) {
+        logError("anchoring for an element has failed, got an invalid anchor line");
+        return;
+    }
+    m_anchors[type] = anchorLine;
+    anchorLine.getRelativeElement()->addAnchoredElement(asUILayout());
+    recalculateAnchors();
+}
+
+void UILayout::addAnchoredElement(UILayoutPtr anchoredElement)
+{
+    bool found = false;
+    for(auto it = m_anchoredElements.begin(); it != m_anchoredElements.end(); ++it) {
+        if((*it).lock() == anchoredElement) {
+            found = true;
+            break;
+        }
+    }
+    if(!found)
+        m_anchoredElements.push_back(anchoredElement);
+}
+
+void UILayout::recalculateAnchors()
+{
+    // horizontal
+    if(m_anchors[ANCHOR_HORIZONTAL_CENTER].isValid()) {
+        m_rect.moveHorizontalCenter(m_anchors[ANCHOR_HORIZONTAL_CENTER].getPos() + m_marginLeft - m_marginRight);
+    } else {
+        if(m_anchors[ANCHOR_LEFT].isValid() && m_anchors[ANCHOR_RIGHT].isValid()) {
+            m_rect.setLeft(m_anchors[ANCHOR_LEFT].getPos() + m_marginLeft);
+            m_rect.setRight(m_anchors[ANCHOR_RIGHT].getPos() - m_marginRight);
+        } else if(m_anchors[ANCHOR_LEFT].isValid()) {
+            m_rect.moveLeft(m_anchors[ANCHOR_LEFT].getPos() + m_marginLeft);
+        } else if(m_anchors[ANCHOR_RIGHT].isValid()) {
+            m_rect.moveRight(m_anchors[ANCHOR_RIGHT].getPos() - m_marginRight);
+        }
+    }
+
+    // vertical
+    if(m_anchors[ANCHOR_VERTICAL_CENTER].isValid()) {
+        m_rect.moveVerticalCenter(m_anchors[ANCHOR_VERTICAL_CENTER].getPos() + m_marginTop - m_marginBottom);
+    } else {
+        if(m_anchors[ANCHOR_TOP].isValid() && m_anchors[ANCHOR_BOTTOM].isValid()) {
+            m_rect.setLeft(m_anchors[ANCHOR_TOP].getPos() + m_marginTop);
+            m_rect.setRight(m_anchors[ANCHOR_BOTTOM].getPos() - m_marginBottom);
+        } else if(m_anchors[ANCHOR_TOP].isValid()) {
+            m_rect.moveTop(m_anchors[ANCHOR_TOP].getPos() + m_marginTop);
+        } else if(m_anchors[ANCHOR_BOTTOM].isValid()) {
+            m_rect.moveBottom(m_anchors[ANCHOR_BOTTOM].getPos() - m_marginBottom);
+        }
+    }
+
+    for(auto it = m_anchoredElements.begin(); it != m_anchoredElements.end(); ++it) {
+        UILayoutPtr element = (*it).lock();
+        if(element)
+            element->recalculateAnchors();
+    }
+}