1 files changed, 87 insertions, 0 deletions
diff --git a/src/main/python/utils/layout.py b/src/main/python/utils/layout.py
new file mode 100644
index 0000000..6781249
--- /dev/null
+++ b/src/main/python/utils/layout.py
@@ -0,0 +1,87 @@
+from PyQt5.QtCore import Qt, QRect, QPoint, QSize
+from PyQt5.QtWidgets import QLayout, QSizePolicy
+
+class flowLayout(QLayout):
+    def __init__(self, parent=None, margin=0, spacing=-1):
+        super(flowLayout, self).__init__(parent)
+
+        if parent is not None:
+            self.setContentsMargins(margin, margin, margin, margin)
+
+        self.setSpacing(spacing)
+        self.itemList = []
+
+    def __del__(self):
+        item = self.takeAt(0)
+        while item:
+            item = self.takeAt(0)
+
+    def addItem(self, item):
+        self.itemList.append(item)
+
+    def count(self):
+        return len(self.itemList)
+
+    def itemAt(self, index):
+        if index >= 0 and index < len(self.itemList):
+            return self.itemList[index]
+
+        return None
+
+    def takeAt(self, index):
+        if index >= 0 and index < len(self.itemList):
+            return self.itemList.pop(index)
+
+        return None
+
+    def expandingDirections(self):
+        return Qt.Orientations(Qt.Orientation(0))
+
+    def hasHeightForWidth(self):
+        return True
+
+    def heightForWidth(self, width):
+        height = self.doLayout(QRect(0, 0, width, 0), True)
+        return height
+
+    def setGeometry(self, rect):
+        super(flowLayout, self).setGeometry(rect)
+        self.doLayout(rect, False)
+        
+    def sizeHint(self):
+        return self.minimumSize()
+
+    def minimumSize(self):
+        size = QSize()
+
+        for item in self.itemList:
+            size = size.expandedTo(item.minimumSize())
+
+        margin, _, _, _ = self.getContentsMargins()
+
+        size += QSize(2 * margin, 2 * margin)
+        return size
+
+    def doLayout(self, rect, testOnly):
+        x = rect.x()
+        y = rect.y()
+        lineHeight = 0
+
+        for item in self.itemList:
+            wid = item.widget()
+            spaceX = self.spacing() + wid.style().layoutSpacing(QSizePolicy.ToolButton, QSizePolicy.ToolButton, Qt.Horizontal)
+            spaceY = self.spacing() + wid.style().layoutSpacing(QSizePolicy.ToolButton, QSizePolicy.ToolButton, Qt.Vertical)
+            nextX = x + item.sizeHint().width() + spaceX
+            if nextX - spaceX > rect.right() and lineHeight > 0:
+                x = rect.x()
+                y = y + lineHeight + spaceY
+                nextX = x + item.sizeHint().width() + spaceX
+                lineHeight = 0
+
+            if not testOnly:
+                item.setGeometry(QRect(QPoint(x, y), item.sizeHint()))
+
+            x = nextX
+            lineHeight = max(lineHeight, item.sizeHint().height())
+
+        return y + lineHeight - rect.y()