CGAL: Qt5 -> Qt6

.github/install.sh

@@ -2,7 +2,8 @@
 sudo apt-get update
 sudo apt-get install -y  libmpfr-dev \
  libeigen3-dev qtbase5-dev libqt5sql5-sqlite libqt5opengl5-dev qtscript5-dev \
- libqt5svg5-dev qttools5-dev qttools5-dev-tools libboost-dev libinsighttoolkit4-dev zsh
+ libqt5svg5-dev qttools5-dev qttools5-dev-tools libboost-dev libinsighttoolkit4-dev zsh \
+ qt6-base-dev qt6-declarative-dev
 #update cmake to 3.18.4
 sudo apt purge --auto-remove cmake
 cd /tmp

.github/test.sh

@@ -3,11 +3,10 @@
 FACTOR=$1
 set -ex
 cd Polyhedron/demo
-LIST_OF_PLUGINS=$(/usr/local/bin/cmake --build . -t help | egrep 'plugin$' |& cut -d\  -f2)
+/usr/local/bin/cmake -S Polyhedron -B build -DCGAL_DIR=$2
+LIST_OF_PLUGINS=$(/usr/local/bin/cmake --build build -t help | egrep 'plugin$' |& cut -d\  -f2)
 PLUGINS_ARRAY=(${LIST_OF_PLUGINS});
 NB_OF_PLUGINS=${#PLUGINS_ARRAY[@]}
 DEL=$(($NB_OF_PLUGINS / 4))
-mkdir build
 cd build
-/usr/local/bin/cmake -DCGAL_DIR=$2 ../Polyhedron
 make -j2 ${PLUGINS_ARRAY[@]:$(($FACTOR * $DEL)):$((($FACTOR + 1) * $DEL))}

.github/workflows/cmake-all.yml

@@ -20,7 +20,7 @@ jobs:
         mkdir build && cd build && CXX=clang++ cmake -DWITH_examples=ON -DWITH_tests=ON -DWITH_demos=ON -DBUILD_TESTING=ON ..
         ctest -L Installation -j $(getconf _NPROCESSORS_ONLN)
 
-  cmake-testsuite-with-qt5:
+  cmake-testsuite-with-qt:
 
     runs-on: ubuntu-latest
 

.gitignore

@@ -178,12 +178,6 @@ GraphicsView/demo/Triangulation_2/Makefile
 GraphicsView/demo/Triangulation_2/Regular_triangulation_2
 GraphicsView/demo/Triangulation_2/qrc_*.cxx
 GraphicsView/demo/Triangulation_2/ui_*.h
-GraphicsView/src/CGAL_Qt5/*.dll
-GraphicsView/src/CGAL_Qt5/*.lib
-GraphicsView/src/CGAL_Qt5/*.so
-GraphicsView/src/CGAL_Qt5/Makefile
-GraphicsView/src/CGAL_Qt5/moc_*.cxx
-GraphicsView/src/CGAL_Qt5/qrc_*.cxx
 HalfedgeDS/test/HalfedgeDS/cgal_test_with_cmake
 HalfedgeDS/test/HalfedgeDS/test_hds
 HalfedgeDS/test/HalfedgeDS/test_hds_decorator
@@ -879,7 +873,6 @@ Surface_mesher/demo/Surface_mesher/.*.deps
 Surface_mesher/demo/Surface_mesher/.qglviewer.xml
 Surface_mesher/demo/Surface_mesher/Makefile
 Surface_mesher/demo/Surface_mesher/Surface_mesher
-Surface_mesher/demo/Surface_mesher/Surface_mesher_Qt5_Demo
 Surface_mesher/demo/Surface_mesher/VTK/Makefile
 Surface_mesher/demo/Surface_mesher/VTK/mesh_a_3D_image
 Surface_mesher/demo/Surface_mesher/VTK/mesh_a_VTK_3D_image
@@ -894,7 +887,6 @@ Surface_mesher/demo/Surface_mesher/out*.off
 Surface_mesher/demo/Surface_mesher/polyhedron_remesher
 Surface_mesher/demo/Surface_mesher/polyhedron_remesher_with_edges
 Surface_mesher/demo/Surface_mesher/qrc_*.c*
-Surface_mesher/demo/Surface_mesher/qt5-demo
 Surface_mesher/demo/Surface_mesher/ui_*.h
 Surface_mesher/doxygen
 Surface_mesher/examples/Surface_mesher/.*.deps

AABB_tree/demo/AABB_tree/AABB_demo.cpp

@@ -30,7 +30,7 @@ int main(int argc, char **argv)
   app.setOrganizationName("INRIA");
   app.setApplicationName("AABB tree demo");
 
-  // Import resources from libCGALQt (Qt5).
+  // Import resources from libCGALQt (Qt6).
   CGAL_QT_INIT_RESOURCES;
 
   MainWindow mainWindow;
@@ -49,12 +49,3 @@ int main(int argc, char **argv)
 
   return app.exec();
 }
-
-#  include "Scene.cpp"
-#  include "Scene_moc.cpp"
-#  include "benchmarks.cpp"
-#  include "Viewer.cpp"
-#  include "Viewer_moc.cpp"
-#  include "MainWindow.cpp"
-#  include "MainWindow_moc.cpp"
-

AABB_tree/demo/AABB_tree/CMakeLists.txt

@@ -6,73 +6,46 @@ project(AABB_tree_Demo)
 # Find includes in corresponding build directories
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
-# Instruct CMake to run moc automatically when needed.
-set(CMAKE_AUTOMOC ON)
-if(NOT POLICY CMP0070 AND POLICY CMP0053)
-  # Only set CMP0053 to OLD with CMake<3.10, otherwise there is a warning.
-  cmake_policy(SET CMP0053 OLD)
-endif()
+# Find CGAL and CGAL Qt6
+find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)
 
-if(POLICY CMP0071)
-  cmake_policy(SET CMP0071 NEW)
-endif()
+# Find Qt6 itself
+find_package(Qt6 QUIET COMPONENTS Gui OpenGL)
 
-# Include this package's headers first
-include_directories(BEFORE ./ ./include)
+if(CGAL_Qt6_FOUND AND Qt6_FOUND)
 
-# Find CGAL and CGAL Qt5
-find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt5)
+  add_definitions(-DQT_NO_KEYWORDS)
 
-# Find Qt5 itself
-find_package(Qt5 QUIET COMPONENTS Widgets OpenGL)
+  # Instruct CMake to run moc/ui/rcc automatically when needed.
+  set(CMAKE_AUTOMOC ON)
+  set(CMAKE_AUTOUIC ON)
+  set(CMAKE_AUTORCC ON)
 
-if(CGAL_Qt5_FOUND AND Qt5_FOUND)
-
-  qt5_wrap_ui(UI_FILES MainWindow.ui)
-
-  include(AddFileDependencies)
-
-  qt5_generate_moc("MainWindow.h" "${CMAKE_CURRENT_BINARY_DIR}/MainWindow_moc.cpp")
-  add_file_dependencies(MainWindow_moc.cpp "${CMAKE_CURRENT_SOURCE_DIR}/MainWindow.h")
-
-  qt5_generate_moc("Viewer.h" "${CMAKE_CURRENT_BINARY_DIR}/Viewer_moc.cpp")
-  add_file_dependencies(Viewer_moc.cpp "${CMAKE_CURRENT_SOURCE_DIR}/Viewer.h")
-
-  qt5_generate_moc("Scene.h" "${CMAKE_CURRENT_BINARY_DIR}/Scene_moc.cpp")
-  add_file_dependencies(Scene_moc.cpp "${CMAKE_CURRENT_SOURCE_DIR}/Scene.h")
-
-  qt5_add_resources(CGAL_Qt5_RESOURCE_FILES AABB_demo.qrc)
-
-  add_file_dependencies(
-    AABB_demo.cpp "${CMAKE_CURRENT_BINARY_DIR}/MainWindow_moc.cpp"
-    "${CMAKE_CURRENT_BINARY_DIR}/Viewer_moc.cpp"
-    "${CMAKE_CURRENT_BINARY_DIR}/Scene_moc.cpp")
-
-  add_executable(
-    AABB_demo AABB_demo.cpp ${UI_FILES} ${CGAL_Qt5_RESOURCE_FILES}
-    #${CGAL_Qt5_MOC_FILES}
+  qt_add_executable(
+    AABB_demo AABB_demo.cpp Scene.cpp benchmarks.cpp Viewer.cpp MainWindow.cpp
+    MainWindow.ui AABB_demo.qrc
   )
   # Link with Qt libraries
-  target_link_libraries(AABB_demo PRIVATE Qt5::Widgets Qt5::OpenGL
-                                          CGAL::CGAL CGAL::CGAL_Qt5)
+  target_link_libraries(AABB_demo PRIVATE Qt6::Gui Qt6::OpenGL
+                                          CGAL::CGAL CGAL::CGAL_Qt6)
 
   add_to_cached_list(CGAL_EXECUTABLE_TARGETS AABB_demo)
 
   include(${CGAL_MODULES_DIR}/CGAL_add_test.cmake)
   cgal_add_compilation_test(AABB_demo)
 
-else(CGAL_Qt5_FOUND AND Qt5_FOUND)
+else(CGAL_Qt6_FOUND AND Qt6_FOUND)
 
   set(AABB_MISSING_DEPS "")
 
-  if(NOT CGAL_Qt5_FOUND)
-    set(AABB_MISSING_DEPS "CGAL_Qt5, ${AABB_MISSING_DEPS}")
+  if(NOT CGAL_Qt6_FOUND)
+    set(AABB_MISSING_DEPS "CGAL_Qt6, ${AABB_MISSING_DEPS}")
   endif()
 
-  if(NOT Qt5_FOUND)
-    set(AABB_MISSING_DEPS "Qt5, ${AABB_MISSING_DEPS}")
+  if(NOT Qt6_FOUND)
+    set(AABB_MISSING_DEPS "Qt6, ${AABB_MISSING_DEPS}")
   endif()
 
   message("NOTICE: This demo requires ${AABB_MISSING_DEPS}, and will not be compiled.")
 
-endif(CGAL_Qt5_FOUND AND Qt5_FOUND)
+endif(CGAL_Qt6_FOUND AND Qt6_FOUND)

AABB_tree/demo/AABB_tree/MainWindow.cpp

@@ -10,15 +10,19 @@
 #include <QSettings>
 #include <QHeaderView>
 #include <QClipboard>
+#include <QInputDialog>
 
 #include "ui_MainWindow.h"
 
 MainWindow::MainWindow(QWidget* parent)
-: CGAL::Qt::DemosMainWindow(parent)
+  : CGAL::Qt::DemosMainWindow(parent)
 {
   ui = new Ui::MainWindow;
   ui->setupUi(this);
 
+  this->addAboutDemo(":/cgal/AABB_demo/about.html");
+  this->addAboutCGAL();
+
   // saves some pointers from ui, for latter use.
   m_pViewer = ui->viewer;
 
@@ -418,7 +422,3 @@ void MainWindow::on_actionCopy_snapshot_triggered()
   qb->setImage(snapshot);
   QApplication::restoreOverrideCursor();
 }
-
-
-
-

AABB_tree/demo/AABB_tree/MainWindow.h

@@ -1,7 +1,6 @@
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
-#include <QtOpenGL/qgl.h>
 #include <CGAL/Qt/DemosMainWindow.h>
 
 class QDragEnterEvent;
@@ -12,7 +11,6 @@ namespace Ui {
   class MainWindow;
 }
 
-
 class MainWindow :
   public CGAL::Qt::DemosMainWindow
 {
@@ -21,12 +19,12 @@ class MainWindow :
   MainWindow(QWidget* parent = nullptr);
   ~MainWindow();
 
-  public slots:
+  public Q_SLOTS:
     void updateViewerBBox();
     void open(QString filename);
     void setAddKeyFrameKeyboardModifiers(Qt::KeyboardModifiers);
 
-    protected slots:
+    protected Q_SLOTS:
 
       // settings
       void quit();

AABB_tree/demo/AABB_tree/Scene.cpp

@@ -618,7 +618,7 @@ void Scene::draw(CGAL::QGLViewer* viewer)
         vao[0].bind();
         attrib_buffers(viewer);
         rendering_program.bind();
-        color.setRgbF(0.7,0.0,0.0);
+        color.setRgbF(0.7f,0.0f,0.0f);
         rendering_program.setUniformValue(colorLocation, color);
         rendering_program.setUniformValue(fLocation, fMatrix);
         gl->glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(pos_points.size()/3));
@@ -631,7 +631,7 @@ void Scene::draw(CGAL::QGLViewer* viewer)
         vao[1].bind();
         attrib_buffers(viewer);
         rendering_program.bind();
-        color.setRgbF(0.0,0.7,0.0);
+        color.setRgbF(0.0f,0.7f,0.0f);
         rendering_program.setUniformValue(colorLocation, color);
         rendering_program.setUniformValue(fLocation, fMatrix);
         gl->glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(pos_lines.size()/3));
@@ -669,7 +669,7 @@ void Scene::draw(CGAL::QGLViewer* viewer)
             vao[3].bind();
             attrib_buffers(viewer);
             rendering_program.bind();
-            color.setRgbF(1.0,0.0,0.0);
+            color.setRgbF(1.0f,0.0f,0.0f);
             rendering_program.setUniformValue(colorLocation, color);
             rendering_program.setUniformValue(fLocation, fMatrix);
             gl->glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(pos_cut_segments.size()/3));

AABB_tree/demo/AABB_tree/Scene.h

@@ -1,7 +1,6 @@
 #ifndef SCENE_H
 #define SCENE_H
 
-#include <QtOpenGL/qgl.h>
 #include <iostream>
 #include <cmath>
 
@@ -77,7 +76,6 @@ class Scene : public QObject
     };
 
 public:
-    QGLContext* context;
     void draw(CGAL::QGLViewer*);
     void update_bbox();
     Bbox bbox() { return m_bbox; }
@@ -173,7 +171,7 @@ class Scene : public QObject
     void attrib_buffers(CGAL::QGLViewer*);
     void compile_shaders();
     void compute_texture(int, int, Color_ramp, Color_ramp);
-private slots:
+private Q_SLOTS:
     void updateCutPlane();
 
 public:
@@ -255,7 +253,7 @@ private slots:
 
 
 
-public slots:
+public Q_SLOTS:
     // cutting plane
     void cutting_plane(bool override = false);
     void changed();

AABB_tree/demo/AABB_tree/Viewer.cpp

@@ -1,9 +1,6 @@
 #include "Viewer.h"
 #include "Scene.h"
 #include <QMouseEvent>
-#include <QGLFunctions>
-#include <CGAL/Qt/CreateOpenGLContext.h>
-
 Viewer::Viewer(QWidget* parent)
   : CGAL::QGLViewer(parent),
     m_pScene(nullptr),

AABB_tree/demo/AABB_tree/benchmarks.cpp

@@ -1,4 +1,5 @@
 #include "Scene.h"
+#include "Refiner.h"
 #include <QInputDialog>
 #include <CGAL/Memory_sizer.h>
 

Alpha_shapes_3/demo/Alpha_shapes_3/Alpha_shape_3.cpp

@@ -16,8 +16,8 @@ int main(int argc, char** argv)
   application.setOrganizationName("GeometryFactory");
   application.setApplicationName("Alpha Shape Reconstruction");
 
-  // Import resources from libCGALQt (Qt5).
-  // See https://doc.qt.io/qt-5/qdir.html#Q_INIT_RESOURCE
+  // Import resources from libCGAL_Qt6
+  // See https://doc.qt.io/qt-6/qtresource-proxy.html#Q_INIT_RESOURCE
 
   CGAL_QT_INIT_RESOURCES;
   Q_INIT_RESOURCE(Alpha_shape_3);

Alpha_shapes_3/demo/Alpha_shapes_3/CMakeLists.txt

@@ -7,46 +7,32 @@ project(Alpha_shapes_3_Demo)
 # Find includes in corresponding build directories
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
-# Instruct CMake to run moc automatically when needed.
-set(CMAKE_AUTOMOC ON)
-if(NOT POLICY CMP0070 AND POLICY CMP0053)
-  # Only set CMP0053 to OLD with CMake<3.10, otherwise there is a warning.
-  cmake_policy(SET CMP0053 OLD)
-endif()
-if(POLICY CMP0071)
-  cmake_policy(SET CMP0071 NEW)
-endif()
+find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)
 
-find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt5)
+find_package(Qt6 QUIET COMPONENTS Widgets OpenGL)
 
-find_package(Qt5 QUIET COMPONENTS Widgets OpenGL)
-
-if(CGAL_Qt5_FOUND AND Qt5_FOUND)
+if(CGAL_Qt6_FOUND AND Qt6_FOUND)
 
   add_definitions(-DQT_NO_KEYWORDS)
 
-  # include(${QT_USE_FILE})
-  include_directories(BEFORE ./)
-
-  # ui file, created with Qt Designer
-  qt5_wrap_ui(uis MainWindow.ui)
+  # Instruct CMake to run moc/ui/rcc automatically when needed.
+  set(CMAKE_AUTOMOC ON)
+  set(CMAKE_AUTOUIC ON)
+  set(CMAKE_AUTORCC ON)
 
-  # qrc files (resources files, that contain icons, at least)
-  qt5_add_resources(CGAL_Qt5_RESOURCE_FILES ./Alpha_shape_3.qrc)
+  qt_add_executable(Alpha_shape_3 Alpha_shape_3.cpp MainWindow.cpp Viewer.cpp
+                    MainWindow.ui Alpha_shape_3.qrc)
 
-  add_executable(
-    Alpha_shape_3 Alpha_shape_3.cpp MainWindow.cpp Viewer.cpp ${uis}
-                  ${CGAL_Qt5_RESOURCE_FILES} ${CGAL_Qt5_MOC_FILES})
   add_to_cached_list(CGAL_EXECUTABLE_TARGETS Alpha_shape_3)
 
-  target_link_libraries(Alpha_shape_3 PRIVATE CGAL::CGAL CGAL::CGAL_Qt5
-                                              Qt5::Widgets Qt5::OpenGL)
+  target_link_libraries(Alpha_shape_3 PRIVATE CGAL::CGAL CGAL::CGAL_Qt6
+                                              Qt6::Widgets Qt6::OpenGL)
 
   include(${CGAL_MODULES_DIR}/CGAL_add_test.cmake)
   cgal_add_compilation_test(Alpha_shape_3)
 
 else()
 
-  message("NOTICE: This demo requires CGAL and Qt5, and will not be compiled.")
+  message("NOTICE: This demo requires CGAL and Qt6, and will not be compiled.")
 
 endif()