From db762662045e13aca416f7adddba21d363a9aad5 Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Tue, 27 Oct 2015 19:00:31 -1000
Subject: [PATCH] Add crude, half-implemented "Go To" buttons to the
 CommandBlock inspector

---
 .../widgets/inspector/tileentities/command.py | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/src/mcedit2/widgets/inspector/tileentities/command.py b/src/mcedit2/widgets/inspector/tileentities/command.py
index 1e7c0bd..f8845d9 100644
--- a/src/mcedit2/widgets/inspector/tileentities/command.py
+++ b/src/mcedit2/widgets/inspector/tileentities/command.py
@@ -4,6 +4,8 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 import logging
 from PySide import QtGui
+
+from mcedit2.util.commandblock import ParseCommand
 from mcedit2.widgets.layout import Column, Row
 
 log = logging.getLogger(__name__)
@@ -15,6 +17,8 @@ class CommandBlockEditorWidget(QtGui.QWidget):
         super(CommandBlockEditorWidget, self).__init__()
         assert tileEntityRef.id == self.tileEntityID
 
+        self.editorSession = editorSession
+
         self.customNameLabel = QtGui.QLabel(self.tr("Custom Name: "))
         self.customNameField = QtGui.QLineEdit()
 
@@ -22,6 +26,9 @@ class CommandBlockEditorWidget(QtGui.QWidget):
         self.successCountLabel = QtGui.QLabel(self.tr("Success Count: "))
         self.successCountSpinBox = QtGui.QSpinBox()
 
+        self.gotoCommandButton = QtGui.QPushButton(self.tr("Go To Command"), clicked=self.gotoCommand)
+        self.gotoTargetButton = QtGui.QPushButton(self.tr("Go To Target"), clicked=self.gotoTarget)
+        self.gotoIndirectTargetButton = QtGui.QPushButton(self.tr("Go To Indirect Target"), clicked=self.gotoIndirectTarget)
 
         self.commandTextEdit = QtGui.QTextEdit()
         self.commandTextEdit.setAcceptRichText(False)
@@ -31,6 +38,7 @@ class CommandBlockEditorWidget(QtGui.QWidget):
         self.setLayout(Column(Row(self.customNameLabel, self.customNameField),
                               Row(self.trackOutputCheckbox, None,
                                   self.successCountLabel, self.successCountSpinBox),
+                              Row(self.gotoCommandButton, self.gotoTargetButton, self.gotoIndirectTargetButton),
                               self.commandGroup))
 
         self.tileEntityRef = tileEntityRef
@@ -40,4 +48,47 @@ class CommandBlockEditorWidget(QtGui.QWidget):
         self.trackOutputCheckbox.setChecked(tileEntityRef.TrackOutput != 0)
         self.successCountSpinBox.setValue(tileEntityRef.SuccessCount)
 
+        try:
+            self.parsedCommand = ParseCommand(tileEntityRef.Command)
+        except Exception:
+            log.warn("Failed to parse command block.", exc_info=1)
+            self.parsedCommand = None
+
+            self.gotoTargetButton.setEnabled(False)
+            self.gotoIndirectTarget.setEnabled(False)
+
+        self.adjustSize()
+
+    def gotoCommand(self):
+        self.editorSession.zoomToPoint(self.tileEntityRef.Position)
+
+    def gotoTarget(self):
+        if self.parsedCommand.name == "setblock":
+            targetPos = self.parsedCommand.resolvePosition(self.tileEntityRef.Position)
+            self.editorSession.zoomToPoint(targetPos)
+        elif self.parsedCommand.name == "execute":
+            selector = self.parsedCommand.targetSelector
+            if selector.playerName is not None:
+                return
+
+            x, y, z = [selector.getArg(a) for a in 'xyz']
+
+            if None in (x, y, z):
+                log.warn("No selector coordinates for command %s", self.parsedCommand)
+                return
+            self.editorSession.zoomToPoint((x, y, z))
+
+    def gotoIndirectTarget(self):
+        if self.parsedCommand.name == "execute":
+            targetPos = self.parsedCommand.resolvePosition(self.tileEntityRef.Position)
+            subcommand = self.parsedCommand.subcommand
+
+            if hasattr(subcommand, 'resolvePosition'):
+                indirectPos = subcommand.resolvePosition(targetPos)
+                self.editorSession.zoomToPoint(indirectPos)
+
+            if hasattr(subcommand, 'resolveBoundingBox'):
+                sourceBounds = subcommand.resolveBoundingBox(targetPos)
+                self.editorSession.zoomToPoint(sourceBounds.center)
+