From 0e671101df702ba3c27e1e6a747e12540452961b Mon Sep 17 00:00:00 2001
From: CodeByMrFinchum <mr.finchum@pm.me>
Date: Thu, 30 Jan 2025 17:42:24 +0100
Subject: [PATCH] feat: Enhanced preview window.

---
 src/OptimaLab35/gui.py               | 93 ++++++++++++++++++++++------
 src/OptimaLab35/ui/main_window.py    |  5 --
 src/OptimaLab35/ui/main_window.ui    |  7 ---
 src/OptimaLab35/ui/preview_window.py | 24 ++++++-
 src/OptimaLab35/ui/preview_window.ui | 27 +++++++-
 src/OptimaLab35/ui/simple_dialog.py  | 12 +++-
 6 files changed, 130 insertions(+), 38 deletions(-)

diff --git a/src/OptimaLab35/gui.py b/src/OptimaLab35/gui.py
index 4fc4afb..1194845 100644
--- a/src/OptimaLab35/gui.py
+++ b/src/OptimaLab35/gui.py
@@ -10,7 +10,7 @@ from OptimaLab35.ui.exif_handler_window import ExifEditor
 from OptimaLab35.ui.simple_dialog import SimpleDialog  # Import the SimpleDialog class
 from OptimaLab35 import __version__
 
-from PySide6.QtCore import QRunnable, QThreadPool, Signal, QObject, QRegularExpression
+from PySide6.QtCore import QRunnable, QThreadPool, Signal, QObject, QRegularExpression, Qt
 
 from PySide6 import QtWidgets
 from PySide6.QtWidgets import (
@@ -75,7 +75,6 @@ class OptimaLab35(QMainWindow, Ui_MainWindow):
         self.ui.edit_exif_button.clicked.connect(self.open_exif_editor)
 
         self.ui.actionAbout.triggered.connect(self.info_window)
-        self.ui.actionPreview.triggered.connect(self.open_preview_window)
         self.ui.preview_Button.clicked.connect(self.open_preview_window)
 
         regex = QRegularExpression(r"^\d{1,2}\.\d{1,6}$")
@@ -88,7 +87,7 @@ class OptimaLab35(QMainWindow, Ui_MainWindow):
     # UI related function, changing parts, open, etc.
     def open_preview_window(self):
         self.preview_window.values_selected.connect(self.update_values)
-        self.preview_window.show()
+        self.preview_window.showMaximized()
 
     def update_values(self, value1, value2, checkbox_state):
         # Update main window's widgets with the received values
@@ -98,12 +97,20 @@ class OptimaLab35(QMainWindow, Ui_MainWindow):
         self.ui.grayscale_checkBox.setChecked(checkbox_state)
 
     def info_window(self):
-        # ChatGPT, mainly
         info_text = f"""
         <h3>{self.name} v{self.version}</h3>
-        <p>(C) 2024-2025 Mr. Finchum aka CodeByMrFinchum</p>
-        <p>{self.name} is a GUI for <b>{self.o.name}</b> (v{self.o.version}).</p>
-        <p> Both projects are in active development, for more details, visit:</p>
+        <p>(C) 2024-2025 Mr Finchum aka CodeByMrFinchum</p>
+        <p>{self.name} is a GUI for {self.o.name} (v{self.o.version}), enhancing its functionality with a\nuser-friendly interface for efficient image and metadata management.</p>
+
+        <h4>Features:</h4>
+        <ul>
+            <li>Image processing: resize, grayscale, brightness/contrast adjustments</li>
+            <li>Live image preview: see changes before applying</li>
+            <li>EXIF management: add, copy, remove metadata, GPS support</li>
+            <li>Watermarking: add custom text-based watermarks</li>
+        </ul>
+
+        <p>For more details, visit:</p>
         <ul>
             <li><a href="https://gitlab.com/CodeByMrFinchum/OptimaLab35">OptimaLab35 GitLab</a></li>
             <li><a href="https://gitlab.com/CodeByMrFinchum/optima35">optima35 GitLab</a></li>
@@ -455,6 +462,7 @@ class PreviewWindow(QMainWindow, Ui_Preview_Window):
         self.ui = Ui_Preview_Window()
         self.ui.setupUi(self)
         self.o = OptimaManager()
+        self.ui.QLabel.setAlignment(Qt.AlignCenter)
         ## Ui interaction
         self.ui.load_Button.clicked.connect(self.browse_file)
         self.ui.update_Button.clicked.connect(self.update_preview)
@@ -462,7 +470,22 @@ class PreviewWindow(QMainWindow, Ui_Preview_Window):
 
         self.ui.reset_brightness_Button.clicked.connect(lambda: self.ui.brightness_spinBox.setValue(0))
         self.ui.reset_contrast_Button.clicked.connect(lambda: self.ui.contrast_spinBox.setValue(0))
-        self.preview_image = None
+
+        # Connect UI elements to `on_ui_change`
+        self.ui.brightness_spinBox.valueChanged.connect(self.on_ui_change)
+        self.ui.brightness_Slider.valueChanged.connect(self.on_ui_change)
+        #self.ui.reset_brightness_Button.clicked.connect(self.on_ui_change)
+
+        self.ui.contrast_spinBox.valueChanged.connect(self.on_ui_change)
+        self.ui.contrast_Slider.valueChanged.connect(self.on_ui_change)
+        #self.ui.reset_contrast_Button.clicked.connect(self.on_ui_change)
+
+        self.ui.grayscale_checkBox.stateChanged.connect(self.on_ui_change)
+
+    def on_ui_change(self):
+        """Triggers update only if live update is enabled."""
+        if self.ui.live_update.isChecked():
+            self.update_preview()
 
     def browse_file(self):
         file = QFileDialog.getOpenFileName(self, caption = "Select File", filter = ("Images (*.png *.webp *.jpg *.jpeg)"))
@@ -470,29 +493,61 @@ class PreviewWindow(QMainWindow, Ui_Preview_Window):
             self.ui.image_path_lineEdit.setText(file[0])
             self.update_preview()
 
-    def update_preview(self):
-        path = self.ui.image_path_lineEdit.text()
+    def process_image(self, path):
+        """Loads and processes the image with modifications."""
+        # Refactored by ChatGPT
         if not os.path.isfile(path):
-            return
+            return None
+
         try:
             img = self.o.process_image_object(
-                image_input_file = path,
-                resize = 50,
-                watermark = "PREVIEW",
-                grayscale = self.ui.grayscale_checkBox.isChecked(),
-                brightness = int(self.ui.brightness_spinBox.text()),
-                contrast = int(self.ui.contrast_spinBox.text())
+                image_input_file=path, # Example: resize percentage
+                watermark="PREVIEW",
+                resize = 100,
+                grayscale=self.ui.grayscale_checkBox.isChecked(),
+                brightness=int(self.ui.brightness_spinBox.text()),
+                contrast=int(self.ui.contrast_spinBox.text())
             )
+            return QPixmap.fromImage(img)
         except Exception as e:
             QMessageBox.warning(self, "Warning", "Error loading image...")
             print(f"Error loading image...\n{e}")
+            return None
+
+    def display_image(self, pixmap):
+        """Adjusts the image to fit within the QLabel."""
+        # ChatGPT
+        if pixmap is None:
             return
 
-        self.preview_image = QPixmap.fromImage(img)
-        self.ui.QLabel.setPixmap(self.preview_image)
+        # Get max available size (QLabel size)
+        max_size = self.ui.QLabel.size()
+        max_width = max_size.width()
+        max_height = max_size.height()
+
+        # Scale image to fit within the available space while maintaining aspect ratio
+        scaled_pixmap = pixmap.scaled(
+            max_width, max_height,
+            Qt.KeepAspectRatio,
+            Qt.SmoothTransformation
+        )
+
+        # Set the scaled image
+        self.ui.QLabel.setPixmap(scaled_pixmap)
+
+        # Adjust QLabel size to match image
+        self.ui.QLabel.resize(scaled_pixmap.size())
+
+    def update_preview(self):
+        """Handles loading and displaying the image."""
+        # ChatGPT
+        path = self.ui.image_path_lineEdit.text()
+        pixmap = self.process_image(path)
+        self.display_image(pixmap)
 
     def close_window(self):
             # Emit the signal with the values from the spinboxes and checkbox
+            # chatgpt
             if self.ui.checkBox.isChecked():
                 self.values_selected.emit(self.ui.brightness_spinBox.value(), self.ui.contrast_spinBox.value(), self.ui.grayscale_checkBox.isChecked())
             self.close()
diff --git a/src/OptimaLab35/ui/main_window.py b/src/OptimaLab35/ui/main_window.py
index c0e4990..5af0bc9 100644
--- a/src/OptimaLab35/ui/main_window.py
+++ b/src/OptimaLab35/ui/main_window.py
@@ -553,15 +553,11 @@ class Ui_MainWindow(object):
         self.menuBar = QMenuBar(MainWindow)
         self.menuBar.setObjectName(u"menuBar")
         self.menuBar.setGeometry(QRect(0, 0, 440, 27))
-        self.menuSettings = QMenu(self.menuBar)
-        self.menuSettings.setObjectName(u"menuSettings")
         self.menuHelp = QMenu(self.menuBar)
         self.menuHelp.setObjectName(u"menuHelp")
         MainWindow.setMenuBar(self.menuBar)
 
-        self.menuBar.addAction(self.menuSettings.menuAction())
         self.menuBar.addAction(self.menuHelp.menuAction())
-        self.menuSettings.addAction(self.actionPreview)
         self.menuHelp.addAction(self.actionAbout)
 
         self.retranslateUi(MainWindow)
@@ -661,7 +657,6 @@ class Ui_MainWindow(object):
         self.date_groupBox.setTitle(QCoreApplication.translate("MainWindow", u"Optional", None))
         self.add_date_checkBox.setText(QCoreApplication.translate("MainWindow", u"add date", None))
         self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), QCoreApplication.translate("MainWindow", u"EXIF", None))
-        self.menuSettings.setTitle(QCoreApplication.translate("MainWindow", u"Settings", None))
         self.menuHelp.setTitle(QCoreApplication.translate("MainWindow", u"Help", None))
     # retranslateUi
 
diff --git a/src/OptimaLab35/ui/main_window.ui b/src/OptimaLab35/ui/main_window.ui
index 59d707a..3779add 100644
--- a/src/OptimaLab35/ui/main_window.ui
+++ b/src/OptimaLab35/ui/main_window.ui
@@ -835,19 +835,12 @@
      <height>27</height>
     </rect>
    </property>
-   <widget class="QMenu" name="menuSettings">
-    <property name="title">
-     <string>Settings</string>
-    </property>
-    <addaction name="actionPreview"/>
-   </widget>
    <widget class="QMenu" name="menuHelp">
     <property name="title">
      <string>Help</string>
     </property>
     <addaction name="actionAbout"/>
    </widget>
-   <addaction name="menuSettings"/>
    <addaction name="menuHelp"/>
   </widget>
   <action name="actionInfo">
diff --git a/src/OptimaLab35/ui/preview_window.py b/src/OptimaLab35/ui/preview_window.py
index 00f5cad..f9f6d3e 100644
--- a/src/OptimaLab35/ui/preview_window.py
+++ b/src/OptimaLab35/ui/preview_window.py
@@ -24,7 +24,7 @@ class Ui_Preview_Window(object):
     def setupUi(self, Preview_Window):
         if not Preview_Window.objectName():
             Preview_Window.setObjectName(u"Preview_Window")
-        Preview_Window.resize(803, 700)
+        Preview_Window.resize(803, 775)
         Preview_Window.setMinimumSize(QSize(800, 700))
         self.centralwidget = QWidget(Preview_Window)
         self.centralwidget.setObjectName(u"centralwidget")
@@ -34,7 +34,7 @@ class Ui_Preview_Window(object):
         self.QLabel.setObjectName(u"QLabel")
         self.QLabel.setMinimumSize(QSize(628, 628))
         self.QLabel.setFrameShape(QFrame.Box)
-        self.QLabel.setScaledContents(True)
+        self.QLabel.setScaledContents(False)
 
         self.horizontalLayout.addWidget(self.QLabel)
 
@@ -130,6 +130,24 @@ class Ui_Preview_Window(object):
 
         self.verticalLayout_3.addWidget(self.update_Button)
 
+        self.widget_5 = QWidget(self.widget)
+        self.widget_5.setObjectName(u"widget_5")
+        self.verticalLayout_5 = QVBoxLayout(self.widget_5)
+        self.verticalLayout_5.setObjectName(u"verticalLayout_5")
+        self.label_4 = QLabel(self.widget_5)
+        self.label_4.setObjectName(u"label_4")
+        self.label_4.setWordWrap(True)
+
+        self.verticalLayout_5.addWidget(self.label_4)
+
+        self.live_update = QCheckBox(self.widget_5)
+        self.live_update.setObjectName(u"live_update")
+
+        self.verticalLayout_5.addWidget(self.live_update)
+
+
+        self.verticalLayout_3.addWidget(self.widget_5)
+
         self.widget_4 = QWidget(self.widget)
         self.widget_4.setObjectName(u"widget_4")
         self.verticalLayout_4 = QVBoxLayout(self.widget_4)
@@ -184,6 +202,8 @@ class Ui_Preview_Window(object):
         self.reset_contrast_Button.setText(QCoreApplication.translate("Preview_Window", u"Reset", None))
         self.grayscale_checkBox.setText(QCoreApplication.translate("Preview_Window", u"Grayscale", None))
         self.update_Button.setText(QCoreApplication.translate("Preview_Window", u"Update preview", None))
+        self.label_4.setText(QCoreApplication.translate("Preview_Window", u"Update preview live might have large impact on system, especilly if image is large.", None))
+        self.live_update.setText(QCoreApplication.translate("Preview_Window", u"Live update", None))
         self.label_3.setText(QCoreApplication.translate("Preview_Window", u"Copy values to main window when closing", None))
         self.checkBox.setText(QCoreApplication.translate("Preview_Window", u"Copy Values", None))
         self.close_Button.setText(QCoreApplication.translate("Preview_Window", u"Close", None))
diff --git a/src/OptimaLab35/ui/preview_window.ui b/src/OptimaLab35/ui/preview_window.ui
index 29a8057..6bd17b7 100644
--- a/src/OptimaLab35/ui/preview_window.ui
+++ b/src/OptimaLab35/ui/preview_window.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>803</width>
-    <height>700</height>
+    <height>775</height>
    </rect>
   </property>
   <property name="minimumSize">
@@ -36,7 +36,7 @@
        <string/>
       </property>
       <property name="scaledContents">
-       <bool>true</bool>
+       <bool>false</bool>
       </property>
      </widget>
     </item>
@@ -181,6 +181,29 @@
          </property>
         </widget>
        </item>
+       <item>
+        <widget class="QWidget" name="widget_5" native="true">
+         <layout class="QVBoxLayout" name="verticalLayout_5">
+          <item>
+           <widget class="QLabel" name="label_4">
+            <property name="text">
+             <string>Update preview live might have large impact on system, especilly if image is large.</string>
+            </property>
+            <property name="wordWrap">
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="live_update">
+            <property name="text">
+             <string>Live update</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
        <item>
         <widget class="QWidget" name="widget_4" native="true">
          <layout class="QVBoxLayout" name="verticalLayout_4">
diff --git a/src/OptimaLab35/ui/simple_dialog.py b/src/OptimaLab35/ui/simple_dialog.py
index b4a230b..019877a 100644
--- a/src/OptimaLab35/ui/simple_dialog.py
+++ b/src/OptimaLab35/ui/simple_dialog.py
@@ -1,17 +1,22 @@
-from PySide6.QtWidgets import QApplication, QDialog, QVBoxLayout, QLineEdit, QPushButton, QLabel
-# ChatGPT
+from PySide6.QtWidgets import QApplication, QDialog, QVBoxLayout, QLabel, QPushButton
+from PySide6.QtCore import Qt
+
 class SimpleDialog(QDialog):
     def __init__(self):
         super().__init__()
 
         # Set default properties
-        self.setGeometry(100, 100, 300, 100)
+        self.setWindowTitle("Information")
+        self.setGeometry(100, 100, 400, 100)  # Default size
 
         # Create the layout
         layout = QVBoxLayout()
 
         # Create the label for the message
         self.message_label = QLabel(self)
+        self.message_label.setWordWrap(True)  # Enable word wrapping
+        self.message_label.setAlignment(Qt.AlignLeft | Qt.AlignTop)  # Align text
+        self.message_label.setMaximumWidth(400)  # Set max width so it wraps text
 
         # Create the close button
         close_button = QPushButton("Close", self)
@@ -27,4 +32,5 @@ class SimpleDialog(QDialog):
     def show_dialog(self, title: str, message: str):
         self.setWindowTitle(title)  # Set the window title
         self.message_label.setText(message)  # Set the message text
+        self.adjustSize()  # Adjust window height dynamically based on text content
         self.exec()  # Open the dialog as a modal window