From c3f128806b45c427058448e6f2ff799de16da418 Mon Sep 17 00:00:00 2001
From: tassaron <rutachigal@gmail.com>
Date: Thu, 10 Aug 2017 21:57:06 -0400
Subject: [PATCH] Life comp shift buttons and Show Grid option

---
 src/component.py       |  2 ++
 src/components/life.py | 56 +++++++++++++++++++++++++++++++++++++++++-
 src/components/life.ui | 49 +++++++++++++++++++++++++++++++++++-
 3 files changed, 105 insertions(+), 2 deletions(-)

diff --git a/src/component.py b/src/component.py
index a1e24db..d011f1e 100644
--- a/src/component.py
+++ b/src/component.py
@@ -323,7 +323,9 @@ class Component(QtCore.QObject, metaclass=ComponentMetaclass):
             else:
                 # Normal tracked widget
                 setattr(self, attr, getWidgetValue(widget))
+        self.sendUpdateSignal()
 
+    def sendUpdateSignal(self):
         if not self.core.openingProject:
             self.parent.drawPreview()
             saveValueStore = self.savePreset()
diff --git a/src/components/life.py b/src/components/life.py
index 147d4d5..9254126 100644
--- a/src/components/life.py
+++ b/src/components/life.py
@@ -25,10 +25,24 @@ class Component(Component):
             'shapeType': self.page.comboBox_shapeType,
             'shadow': self.page.checkBox_shadow,
             'customImg': self.page.checkBox_customImg,
+            'showGrid': self.page.checkBox_showGrid,
             'image': self.page.lineEdit_image,
         }, colorWidgets={
             'color': self.page.pushButton_color,
         })
+        self.shiftButtons = (
+            self.page.toolButton_up,
+            self.page.toolButton_down,
+            self.page.toolButton_left,
+            self.page.toolButton_right,
+        )
+        def shiftFunc(i):
+            def shift():
+                self.shiftGrid(i)
+            return shift
+        shiftFuncs = [shiftFunc(i) for i in range(len(self.shiftButtons))]
+        for i, widget in enumerate(self.shiftButtons):
+            widget.clicked.connect(shiftFuncs[i])
         self.page.spinBox_scale.setValue(self.scale)
         self.page.spinBox_scale.valueChanged.connect(self.updateGridSize)
 
@@ -42,6 +56,24 @@ class Component(Component):
             self.page.lineEdit_image.setText(filename)
             self.update()
 
+    def shiftGrid(self, d):
+        def newGrid(Xchange, Ychange):
+            return {
+                (x + Xchange, y + Ychange): True
+                for x, y in self.startingGrid
+            }
+
+        if d == 0:
+            newGrid = newGrid(0, -1)
+        elif d == 1:
+            newGrid = newGrid(0, 1)
+        elif d == 2:
+            newGrid = newGrid(-1, 0)
+        elif d == 3:
+            newGrid = newGrid(1, 0)
+        self.startingGrid = newGrid
+        self.sendUpdateSignal()
+
     def update(self):
         self.updateGridSize()
         if self.page.checkBox_customImg.isChecked():
@@ -62,6 +94,9 @@ class Component(Component):
             self.page.label_image.setVisible(False)
             self.page.lineEdit_image.setVisible(False)
             self.page.pushButton_pickImage.setVisible(False)
+        enabled = (len(self.startingGrid) > 0)
+        for widget in self.shiftButtons:
+            widget.setEnabled(enabled)
         super().update()
 
     def previewClickEvent(self, pos, size, button):
@@ -298,6 +333,22 @@ class Component(Component):
             shadImg = ImageChops.offset(shadImg, -2, 2)
             shadImg.paste(frame, box=(0, 0), mask=frame)
             frame = shadImg
+        if self.showGrid:
+            drawer = ImageDraw.Draw(frame)
+            w, h = scale(0.05, self.width, self.height, int)
+            for x in range(self.pxWidth, self.width, self.pxWidth):
+                drawer.rectangle(
+                    ((x, 0),
+                    (x + w, self.height)),
+                    fill=self.color,
+                )
+            for y in range(self.pxHeight, self.height, self.pxHeight):
+                drawer.rectangle(
+                    ((0, y),
+                    (self.width, y + h)),
+                    fill=self.color,
+                )
+
         return frame
 
     def gridForTick(self, tick):
@@ -334,8 +385,11 @@ class Component(Component):
         return pr
 
     def loadPreset(self, pr, *args):
-        super().loadPreset(pr, *args)
         self.startingGrid = dict(pr['GRID'])
+        if self.startingGrid:
+            for widget in self.shiftButtons:
+                widget.setEnabled(True)
+        super().loadPreset(pr, *args)
 
 
 def nearbyCoords(x, y):
diff --git a/src/components/life.ui b/src/components/life.ui
index 3b393dd..85b2926 100644
--- a/src/components/life.ui
+++ b/src/components/life.ui
@@ -83,7 +83,7 @@
          <item>
           <widget class="QSpinBox" name="spinBox_scale">
            <property name="minimum">
-            <number>24</number>
+            <number>22</number>
            </property>
            <property name="maximum">
             <number>128</number>
@@ -279,6 +279,13 @@
            </property>
           </widget>
          </item>
+         <item>
+          <widget class="QCheckBox" name="checkBox_showGrid">
+           <property name="text">
+            <string>Show Grid</string>
+           </property>
+          </widget>
+         </item>
          <item>
           <spacer name="horizontalSpacer_6">
            <property name="orientation">
@@ -296,6 +303,46 @@
        </item>
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_9">
+         <item>
+          <widget class="QToolButton" name="toolButton_up">
+           <property name="text">
+            <string>Up</string>
+           </property>
+           <property name="arrowType">
+            <enum>Qt::UpArrow</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QToolButton" name="toolButton_down">
+           <property name="text">
+            <string>Down</string>
+           </property>
+           <property name="arrowType">
+            <enum>Qt::DownArrow</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QToolButton" name="toolButton_left">
+           <property name="text">
+            <string>Left</string>
+           </property>
+           <property name="arrowType">
+            <enum>Qt::LeftArrow</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QToolButton" name="toolButton_right">
+           <property name="text">
+            <string>Right</string>
+           </property>
+           <property name="arrowType">
+            <enum>Qt::RightArrow</enum>
+           </property>
+          </widget>
+         </item>
          <item>
           <spacer name="horizontalSpacer_9">
            <property name="orientation">