From 30188c779e1b419f6818596a29f7f3c7edad42bb Mon Sep 17 00:00:00 2001
From: Treeki <treeki@gmail.com>
Date: Mon, 21 Nov 2011 15:25:54 +0100
Subject: some refactoring of editorui and co

---
 src/editorui/objects.py | 182 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 182 insertions(+)
 create mode 100644 src/editorui/objects.py

(limited to 'src/editorui/objects.py')

diff --git a/src/editorui/objects.py b/src/editorui/objects.py
new file mode 100644
index 0000000..1ae46f7
--- /dev/null
+++ b/src/editorui/objects.py
@@ -0,0 +1,182 @@
+from common import *
+from editorcommon import *
+import weakref
+
+class KPEditorObject(KPEditorItem):
+	SNAP_TO = (24,24)
+
+	def __init__(self, obj, layer):
+		KPEditorItem.__init__(self)
+		obj.qtItem = self
+		self._objRef = weakref.ref(obj)
+		self._layerRef = weakref.ref(layer)
+		self._updatePosition()
+		self._updateSize()
+
+		self.setAcceptHoverEvents(True)
+
+		self.resizing = None
+
+		if not hasattr(KPEditorObject, 'SELECTION_PEN'):
+			KPEditorObject.SELECTION_PEN = QtGui.QPen(Qt.white, 1, Qt.DotLine)
+
+		# I don't bother setting the ZValue because it doesn't quite matter:
+		# only one layer's objects are ever clickable, and drawBackground takes
+		# care of the layered drawing
+	
+	def _updatePosition(self):
+		self.ignoreMovement = True
+		x,y = self._objRef().position
+		self.setPos(x*24, y*24)
+		self.ignoreMovement = False
+	
+	def _updateSize(self):
+		self.prepareGeometryChange()
+
+		obj = self._objRef()
+		w,h = obj.size
+
+		self._boundingRect = QtCore.QRectF(0, 0, w*24, h*24)
+		self._selectionRect = QtCore.QRectF(0, 0, w*24-1, h*24-1)
+
+		self._resizerEndXY = (w*24-5, h*24-5)
+	
+
+	def paint(self, painter, option, widget):
+		if self.isSelected():
+			painter.setPen(self.SELECTION_PEN)
+			painter.drawRect(self._selectionRect)
+	
+
+	def hoverMoveEvent(self, event):
+		if self._layerRef() != KP.mapScene.currentLayer:
+			self.setCursor(Qt.ArrowCursor)
+			return
+
+		pos = event.pos()
+		bit = self.resizerPortionAt(pos.x(), pos.y())
+
+		if bit == 1 or bit == 4:
+			self.setCursor(Qt.SizeFDiagCursor)
+		elif bit == 2 or bit == 3:
+			self.setCursor(Qt.SizeBDiagCursor)
+		elif bit == 7 or bit == 8:
+			self.setCursor(Qt.SizeHorCursor)
+		elif bit == 5 or bit == 6:
+			self.setCursor(Qt.SizeVerCursor)
+		else:
+			self.setCursor(Qt.ArrowCursor)
+	
+
+	def mousePressEvent(self, event):
+		if event.button() == Qt.LeftButton:
+			pos = event.pos()
+			bit = self.resizerPortionAt(pos.x(), pos.y())
+
+			if self._layerRef() == KP.mapScene.currentLayer and bit:
+				event.accept()
+
+				x, xSide, y, ySide = False, None, False, None
+				
+				if bit == 1 or bit == 7 or bit == 3:
+					x, xSide = True, 1
+				elif bit == 2 or bit == 4 or bit == 8:
+					x, xSide = True, 0
+
+				if bit == 1 or bit == 2 or bit == 5:
+					y, ySide = True, 1
+				elif bit == 3 or bit == 4 or bit == 6:
+					y, ySide = True, 0
+
+				self.resizing = (x, xSide, y, ySide)
+				return
+
+		KPEditorItem.mousePressEvent(self, event)
+	
+
+	def _tryAndResize(self, obj, axisIndex, mousePosition, stationarySide):
+		objPosition = obj.position[axisIndex]
+		objSize = obj.size[axisIndex]
+
+		if stationarySide == 0:
+			# Resize the right/bottom side
+			relativeMousePosition = mousePosition - objPosition
+			newSize = relativeMousePosition + 1
+			if newSize == objSize or newSize < 1:
+				return False
+
+			if axisIndex == 1:
+				obj.size = (obj.size[0], newSize)
+			else:
+				obj.size = (newSize, obj.size[1])
+
+		else:
+			# Resize the left/top side
+			rightSide = objPosition + objSize - 1
+			newLeftSide = mousePosition
+
+			newPosition = newLeftSide
+			newSize = rightSide - newLeftSide + 1
+
+			if newSize < 1:
+				return False
+			if newPosition == objPosition and newSize == objSize:
+				return False
+
+			if axisIndex == 1:
+				obj.position = (obj.position[0], newPosition)
+				obj.size = (obj.size[0], newSize)
+			else:
+				obj.position = (newPosition, obj.position[1])
+				obj.size = (newSize, obj.size[1])
+
+		return True
+
+
+	def mouseMoveEvent(self, event):
+		if self.resizing:
+			obj = self._objRef()
+			scenePos = event.scenePos()
+
+			hasChanged = False
+			resizeX, xSide, resizeY, ySide = self.resizing
+
+			if resizeX:
+				hasChanged |= self._tryAndResize(obj, 0, int(scenePos.x() / 24), xSide)
+			if resizeY:
+				hasChanged |= self._tryAndResize(obj, 1, int(scenePos.y() / 24), ySide)
+
+			if hasChanged:
+				obj.updateCache()
+				self._layerRef().updateCache()
+				self._updatePosition()
+				self._updateSize()
+
+		else:
+			KPEditorItem.mouseMoveEvent(self, event)
+	
+
+	def mouseReleaseEvent(self, event):
+		if self.resizing and event.button() == Qt.LeftButton:
+			self.resizing = None
+		else:
+			KPEditorItem.mouseReleaseEvent(self, event)
+	
+
+	def _itemMoved(self, oldX, oldY, newX, newY):
+		obj = self._objRef()
+		obj.position = (newX/24, newY/24)
+		self._layerRef().updateCache()
+
+
+	def remove(self, withItem=False):
+		obj = self._objRef()
+		layer = self._layerRef()
+
+		layer.objects.remove(obj)
+		layer.updateCache()
+
+		if withItem:
+			self.scene().removeItem(self)
+
+
-- 
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