Image printing works

flask/app.py

@@ -20,6 +20,7 @@ if not os.path.exists(app.config['UPLOAD_FOLDER']):
 if not os.path.exists(app.config['TEXT_FOLDER']):
     os.makedirs(app.config['TEXT_FOLDER'])
 
+#TODO: make it so sessions don't interfere with eachother
 
 @app.route('/image', methods=['GET', 'POST'])
 def image():
@@ -33,20 +34,40 @@ def image():
         if file:
             extension = os.path.splitext(file.filename)[1]
             filepath = os.path.join(app.config['UPLOAD_FOLDER'], "upload" + extension)
+            session["filepath"] = filepath
 
             file.save(filepath)
 
             # Process image #
-            height = Image.open(filepath).height
+            format_image(filepath).save(filepath)
-
-            valid = False
-            if height == valid_height:
-                valid = True
             #################
             
-            return render_template('image.html', filename="upload"+extension, height=height, valid=valid)
+            session["filename"] = "upload"+extension
+            return render_template('image.html', filename=session["filename"], cut=session["cut"])
+
+    session["cut"] = True
+    return render_template('image.html', cut=True)
+
+
+#TODO: maybe merge some stuff with text-print
+@app.route('/image-print', methods=['GET', 'POST'])
+def text_print():
+    if request.method == 'POST':
+        image = format_image_to_label(session["filepath"])
+        print_image(image)
+
+        if 'cut' in request.form:
+            print("printing and cutting")
+            cut_paper()
+            session["cut"] = True;
+        else:
+            print("printing")
+            session["cut"] = False;
+
+        return render_template('image.html', filename=session["filename"], cut=session["cut"])
+
+    return render_template('image.html', filename=session["filename"], cut=session["cut"])
 
-    return render_template('image.html')
 
 templates = {
     "DNH": {
@@ -128,7 +149,7 @@ def text():
 @app.route('/text-print', methods=['GET', 'POST'])
 def tex_print():
     if request.method == 'POST':
-        image = format_image("static/text/text.png")
+        image = format_image_to_label("static/text/text.png")
         print_image(image)
 
         if 'cut' in request.form:

flask/format_image.py

@@ -1,12 +1,27 @@
 from PIL import Image
+from printer_info import *
 
-def format_image(path):
+def format_image_to_label(path):
     image = Image.open(path)
     image = image.rotate(-90, expand=True)
     
-    new_image = Image.new('1', (512, image.height), 1)
+    new_image = Image.new('1', (printer_width, image.height), 1)
     new_image.paste(image, (0, 0))
 
     return new_image
 
-#format_image("static/text/text.png").save("output.png")
+def format_image(path):
+    image = Image.open(path)
+
+    if (image.height != label_width):
+        print("resizing image")
+        new_height = label_width
+        new_width = int(label_width * image.width / image.height)
+
+        image = image.resize((new_width, new_height))
+    
+    image = image.convert('1', dither=Image.FLOYDSTEINBERG)
+    return image
+    
+
+format_image("static/uploads/upload.png").save("output.png")

flask/print.py

@@ -1,5 +1,5 @@
 dev_path="/dev/usb/lp0"
-from format_image import format_image
+from format_image import *
 from PIL import Image
 import os
 

flask/printer_info.py

@@ -1 +1,2 @@
 label_width = 100
+printer_width = 512

flask/templates/image.html

@@ -2,19 +2,25 @@
 
 {% block content %}
     <h1>Upload Image</h1>
-    <form method="POST" enctype="multipart/form-data">
+    <form method="POST" action="/image" enctype="multipart/form-data">
         <input type="file" name="image">
         <input type="submit" value="Upload">
     </form>
 
     {% if filename %}
-        <h2>Uploaded Image:</h2>
+    <br><br>
-        <img src="{{ url_for('uploaded_file', filename=filename) }}" alt="Uploaded Image" style="max-width:300px;">
+    <img style="border: 1px solid blueviolet;"
-        {% if valid %}
+    src="{{ url_for('uploaded_file', filename=filename) }}" alt="Uploaded Image">
-        <p style="color: green;">Height: {{ height }} px</p>
+
+    <form method="POST" action="/image-print">
+        {% if cut %}
+            <input type="checkbox" name="cut" value="cut" checked>
         {%else %}
-        <p style="color: red;">Height: {{ height }} px</p>
+            <input type="checkbox" name="cut" value="cut">
         {%endif%}
+        <label for="cut"> Cut paper after printing </label><br>
+
+        <input type="submit" value="Print" style="font-size: 2em; padding: 20px 40px;">
     {% endif %}
 {% endblock %}