update/add example custom nodes

src/customnodes/__init__.py

@@ -3,7 +3,7 @@
 # Add the filename (without the .py extenstion) to the below list to make
 # your custom node(s) available for registering.
 
-__all__ = ['example_custom_node']
+__all__ = ['example_custom_node', 'tut_custom_node']
 
 
 

src/customnodes/example_custom_node.py

@@ -51,12 +51,17 @@ def NodePropertiesUI(self, node, parent, sizer):
         pathlabel = wx.StaticText(parent, label="Path:")
         sizer.Add(pathlabel, flag=wx.LEFT|wx.TOP, border=5)
 
+        vbox = wx.BoxSizer(wx.VERTICAL)
+        hbox = wx.BoxSizer(wx.HORIZONTAL)
+
         self.pathtxtctrl = wx.TextCtrl(parent)
-        sizer.Add(self.pathtxtctrl, flag=wx.TOP|wx.EXPAND, border=5)
         self.pathtxtctrl.ChangeValue(current_value)
-
+        hbox.Add(self.pathtxtctrl, proportion=1)
         self.browsepathbtn = wx.Button(parent, label="Browse...")
-        sizer.Add(self.browsepathbtn, flag=wx.TOP|wx.RIGHT, border=5)
+        hbox.Add(self.browsepathbtn, flag=wx.LEFT, border=5)
+        vbox.Add(hbox, flag=wx.EXPAND)
+
+        sizer.Add(vbox, flag=wx.ALL|wx.EXPAND, border=5)
 
         parent.Bind(wx.EVT_BUTTON, self.OnFilePathButton, self.browsepathbtn)
 

src/customnodes/tut2_custom_node.py

@@ -0,0 +1,92 @@
+import wx
+from PIL import Image, ImageFilter
+
+from GimelStudio.api import (Color, RenderImage, List, NodeBase, 
+                            Parameter, Property, RegisterNode)
+
+
+class NodeDefinition(NodeBase):
+
+    @property
+    def NodeIDName(self):
+        return "box_blur_node"
+
+    @property
+    def NodeLabel(self):
+        return "Box Blur"
+
+    @property
+    def NodeCategory(self):
+        return "FILTER"
+
+    @property
+    def NodeDescription(self):
+        return "Blurs the given image using the specified blur radius with the Box algorithm." 
+
+    @property
+    def NodeVersion(self):
+        return "1.0" 
+
+    @property
+    def NodeAuthor(self):
+        return "Your name!" 
+
+    @property
+    def NodeProperties(self):
+        return [
+            Property('Radius',
+                prop_type='INTEGER',
+                value=4
+                ),
+            ]
+
+    @property
+    def NodeParameters(self):
+        return [
+            Parameter('Image',
+                param_type='RENDERIMAGE',
+                default_value=RenderImage('RGBA', (256, 256), (0, 0, 0, 1))
+                ),
+        ]
+
+
+    def NodePropertiesUI(self, node, parent, sizer):
+        # Get the current property value
+        current_radius_value = self.NodeGetPropValue('Radius')
+
+        # wxPython stuff...
+        radius_label = wx.StaticText(parent, label="Blur Radius:")
+        sizer.Add(radius_label, border=5)
+
+        self.radius_slider = wx.Slider(
+            parent, 100, 25, 1, 100,
+            style=wx.SL_HORIZONTAL | wx.SL_AUTOTICKS | wx.SL_LABELS
+            )
+        self.radius_slider.SetTickFreq(5)
+        self.radius_slider.SetRange(1, 100)
+        self.radius_slider.SetValue(current_radius_value)
+        sizer.Add(self.radius_slider, flag=wx.EXPAND|wx.ALL, border=5)
+
+        parent.Bind(wx.EVT_SCROLL_THUMBRELEASE, self.OnRadiusChange, self.radius_slider)
+
+    def OnRadiusChange(self, evt):
+        # Update the node property "Radius" to be the value that was set
+        self.NodePropertiesUpdate('Radius', self.radius_slider.GetValue())
+
+    def NodeEvaluation(self, eval_info):
+        # Get the parameter
+        image1  = eval_info.EvaluateParameter('Image')
+        # Get the property
+        radius = eval_info.EvaluateProperty('Radius')
+
+        # Just like before, except we edit the image with
+        # Pillow's ImageFilter.BoxBlur method
+        image = RenderImage()
+        image.SetAsImage(image1.GetImage().filter(
+            ImageFilter.BoxBlur(radius)
+            ).convert('RGBA'))
+        self.NodeSetThumb(image.GetImage())
+        return image
+
+
+RegisterNode(NodeDefinition)

src/customnodes/tut_custom_node.py

@@ -0,0 +1,102 @@
+import os
+
+import wx
+from PIL import Image
+
+from GimelStudio.api import (Color, RenderImage, NodeBase,
+                             Parameter, Property,
+                             RegisterNode)
+
+
+class NodeDefinition(NodeBase):
+
+    @property
+    def NodeIDName(self):
+        return "simple_input_node"
+
+    @property
+    def NodeLabel(self):
+        return "Simple Input"
+
+    @property
+    def NodeCategory(self):
+        return "INPUT"
+
+    @property
+    def NodeDescription(self):
+        return "This is an example custom node showing how you can\n create a custom node with the Gimel Studio API" 
+
+    @property
+    def NodeVersion(self):
+        return "1.1" 
+
+    @property
+    def NodeAuthor(self):
+        return "[author's name]"
+
+    @property
+    def NodeProperties(self): 
+        return [
+            Property('Path',
+                prop_type='FILEPATH',
+                value=''
+                ),
+        ]
+
+    def NodePropertiesUI(self, node, parent, sizer):
+        self.parent = parent
+
+        current_value = self.NodeGetPropValue('Path')
+
+        pathlabel = wx.StaticText(parent, label="Path:")
+        sizer.Add(pathlabel, flag=wx.LEFT|wx.TOP, border=5)
+
+        vbox = wx.BoxSizer(wx.VERTICAL)
+        hbox = wx.BoxSizer(wx.HORIZONTAL)
+
+        self.pathtxtctrl = wx.TextCtrl(parent)
+        self.pathtxtctrl.ChangeValue(current_value)
+        hbox.Add(self.pathtxtctrl, proportion=1)
+        self.browsepathbtn = wx.Button(parent, label="Browse...")
+        hbox.Add(self.browsepathbtn, flag=wx.LEFT, border=5)
+        vbox.Add(hbox, flag=wx.EXPAND)
+
+        sizer.Add(vbox, flag=wx.ALL|wx.EXPAND, border=5)
+
+        parent.Bind(wx.EVT_BUTTON, self.OnFilePathButton, self.browsepathbtn)
+
+    def OnFilePathButton(self, evt):
+        # We allow opening only .jpg files here (for fun!)
+        wildcard = "JPG file (*.jpg)|*.jpg|"
+
+        dlg = wx.FileDialog(
+            self.parent, message="Choose an Image...",
+            defaultDir=os.getcwd(),
+            defaultFile="",
+            wildcard=wildcard,
+            style=wx.FD_OPEN | wx.FD_CHANGE_DIR | wx.FD_FILE_MUST_EXIST | wx.FD_PREVIEW
+            )
+
+        # Show the dialog and retrieve the user response. If it is the OK response,
+        # process the data.
+        if dlg.ShowModal() == wx.ID_OK:
+            # This returns a Python list of files that were selected.
+            paths = dlg.GetPaths()
+
+            # Update the property and txtctrl with the new file path
+            self.NodePropertiesUpdate('Path', paths[0])
+            self.pathtxtctrl.ChangeValue(paths[0])
+
+    def NodeEvaluation(self, eval_info):
+        # Get the file path from the property
+        path = eval_info.EvaluateProperty('Path')
+
+        image = RenderImage()
+        if path != '':
+            image.SetAsOpenedImage(path)
+        image.SetAsImage(image.GetImage().convert('RGBA'))
+        self.NodeSetThumb(image.GetImage())
+        return image 
+
+
+RegisterNode(NodeDefinition)