Added ability to remove windows from lists.

- Button for removing selected windows from the active/inactive lists has been added.
- Shortcut for doing the same has also been added, using the DEL key.
- Removed Q_UNUSED from nativeEvent, as the variables that were marked unused were actually being used in the call to QMainWindow::nativeEvent.
- Made destructor of ListWidgetWindowItem call ApplyOriginalState(), so that when ListWidgetWindowItem's are deleted from the active/inactive lists by the aforementioned shortcut and buttons, the original window state will be restored.
- Updated the way in which invalid windows are periodically deleted from the active/inactive lists, ensuring that QListWidget::takeItem is called first before the item instance is deleted, as recommended by Qt.
- Added new function: selectedWindows_Delete() which the aforementioned button and shortcut call to delete selected windows.
- Re-ordered includes in main_window_dialog.hxx, aesthetic change only.
- Changed default window height of MainWindow from 491 to 482.

Author: PsychedelicShayna

source/list_widget_window_item.cpp

@@ -178,3 +178,7 @@ ListWidgetWindowItem::ListWidgetWindowItem(const HWND& window_handle)
 {
 
 }
+
+ListWidgetWindowItem::~ListWidgetWindowItem() {
+    ApplyOriginalState();
+}

source/list_widget_window_item.hpp

@@ -70,6 +70,7 @@ class ListWidgetWindowItem : public QListWidgetItem {
     void ResetModifications();
 
     ListWidgetWindowItem(const HWND& window_handle);
+    virtual ~ListWidgetWindowItem() override;
 };
 
 #endif // ListWidgetWindowItem_HXX

source/main_window_dialog.cxx

@@ -2,9 +2,6 @@
 #include "ui_main_window_dialog.h"
 
 bool MainWindow::nativeEvent(const QByteArray& event_type, void* message, qintptr* result) {
-    Q_UNUSED(event_type)
-    Q_UNUSED(result)
-
     MSG* msg { reinterpret_cast<MSG*>(message) };
 
     if (msg->message == WM_HOTKEY) {
@@ -22,15 +19,15 @@ void MainWindow::removeInvalidWindowsFromLists() {
         ListWidgetWindowItem* list_widget_window_item { dynamic_cast<ListWidgetWindowItem*>(ui->listWidgetActiveWindows->item(i)) };
 
         if(!list_widget_window_item->IsValidWindow()) {
-            delete list_widget_window_item;
+            delete ui->listWidgetActiveWindows->takeItem(ui->listWidgetActiveWindows->row(list_widget_window_item));
         }
     }
 
     for(qint32 i { 0 }; i < ui->listWidgetInactiveWindows->count(); ++i) {
         ListWidgetWindowItem* list_widget_window_item { dynamic_cast<ListWidgetWindowItem*>(ui->listWidgetInactiveWindows->item(i)) };
 
         if(!list_widget_window_item->IsValidWindow()) {
-            delete list_widget_window_item;
+            delete ui->listWidgetInactiveWindows->takeItem(ui->listWidgetInactiveWindows->row(list_widget_window_item));
         }
     }
 }
@@ -95,6 +92,16 @@ void MainWindow::spawnProcessScannerDialog() {
     }
 }
 
+void MainWindow::selectedWindows_Delete() {
+    for(QListWidgetItem* list_widget_item : ui->listWidgetInactiveWindows->selectedItems()) {
+        delete ui->listWidgetInactiveWindows->takeItem(ui->listWidgetInactiveWindows->row(list_widget_item));
+    }
+
+    for(QListWidgetItem* list_widget_item : ui->listWidgetActiveWindows->selectedItems()) {
+        delete ui->listWidgetActiveWindows->takeItem(ui->listWidgetActiveWindows->row(list_widget_item));
+    }
+}
+
 void MainWindow::startWindowGrabber() {
     if(timerWindowGrabber->isActive()) {
         windowGrabAttemptCounter = 30;
@@ -327,6 +334,24 @@ MainWindow::MainWindow(QWidget* parent)
 
     timerRemoveInvalidWindows->start(1000);
 
+    QShortcut* inactive_list_widget_del_shortcut { new QShortcut { Qt::Key_Delete, ui->listWidgetInactiveWindows } };
+    QShortcut* active_list_widget_del_shortcut   { new QShortcut { Qt::Key_Delete, ui->listWidgetActiveWindows   } };
+
+    connect(inactive_list_widget_del_shortcut,    SIGNAL(activated()),
+            this,                                 SLOT(selectedWindows_Delete()));
+
+    connect(active_list_widget_del_shortcut,      SIGNAL(activated()),
+            this,                                 SLOT(selectedWindows_Delete()));
+
+    connect(inactive_list_widget_del_shortcut,    SIGNAL(activatedAmbiguously()),
+            this,                                 SLOT(selectedWindows_Delete()));
+
+    connect(active_list_widget_del_shortcut,      SIGNAL(activatedAmbiguously()),
+            this,                                 SLOT(selectedWindows_Delete()));
+
+    connect(ui->pushButtonDeleteSelectedWindows,  SIGNAL(clicked()),
+            this,                                 SLOT(selectedWindows_Delete()));
+
     connect(timerRemoveInvalidWindows,            SIGNAL(timeout()),
             this,                                 SLOT(removeInvalidWindowsFromLists()));
 

source/main_window_dialog.hxx

@@ -1,14 +1,16 @@
 #ifndef MAINWINDOW_HXX
 #define MAINWINDOW_HXX
 
-#include <QtWidgets/QMainWindow>
-#include <QtWidgets/QHBoxLayout>
-#include <QtWidgets/QCheckBox>
-
 #include <QtCore/QResource>
 #include <QtCore/QFileInfo>
 #include <QtCore/QFile>
 
+#include <QtGui/QShortcut>
+
+#include <QtWidgets/QMainWindow>
+#include <QtWidgets/QHBoxLayout>
+#include <QtWidgets/QCheckBox>
+
 #ifndef WIN32_MEAN_AND_LEAN
 #define WIN32_MEAN_AND_LEAN
 #endif
@@ -61,6 +63,8 @@ protected:
     quint32 windowGrabAttemptCounter;
     Q_SLOT void startWindowGrabber();
 
+    Q_SLOT void selectedWindows_Delete();
+
     Q_SLOT void selectedInactiveWindows_Activate();
     Q_SLOT void selectedActiveWindows_Deactivate();
 

source/main_window_dialog.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>457</width>
-    <height>491</height>
+    <height>482</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -212,23 +212,34 @@
          </widget>
         </item>
         <item>
-         <widget class="QPushButton" name="pushButtonResetSelectedWindows">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="minimumSize">
-           <size>
-            <width>0</width>
-            <height>0</height>
-           </size>
-          </property>
-          <property name="text">
-           <string>Reset Selected Windows</string>
-          </property>
-         </widget>
+         <layout class="QHBoxLayout" name="horizontalLayoutListManagementButtons" stretch="1,1">
+          <item>
+           <widget class="QPushButton" name="pushButtonResetSelectedWindows">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="minimumSize">
+             <size>
+              <width>0</width>
+              <height>0</height>
+             </size>
+            </property>
+            <property name="text">
+             <string>Reset Selected Windows</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="pushButtonDeleteSelectedWindows">
+            <property name="text">
+             <string>Delete Selected Windows</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
         </item>
        </layout>
       </widget>