Merge pull request #2 from Oszimilian/CleanUp_01

Clean up 01

.vscode/dryrun.log

@@ -4,12 +4,14 @@ gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/inclu
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c Background.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c GUI.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c PDF.c
-gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c Worksheed_Adjust.c
+gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c PNG.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c Worksheet_Creat.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c GUI_Call.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c Worksheet_Status.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c GUI_Status.c
 gcc -Wall -g  -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -c GUI_Update.c
-gcc -o prog main.o Background.o GUI.o PDF.o Worksheed_Adjust.o Worksheet_Creat.o GUI_Call.o Worksheet_Status.o GUI_Status.o GUI_Update.o -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -export-dynamic  /usr/local/lib/libhpdf.a -lz -lm -lpthread
+
+gcc -o prog main.o Background.o GUI.o PDF.o PNG.o Worksheet_Creat.o GUI_Call.o Worksheet_Status.o GUI_Status.o GUI_Update.o -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -export-dynamic  /usr/local/lib/libhpdf.a -lz -lm -lpthread
+
 make: Leaving directory '/home/maximilian/NewGit/WCO'
 

.vscode/settings.json

@@ -3,5 +3,12 @@
         "stdio.h": "c",
         "setjmp.h": "c",
         "stdlib.h": "c"
-    }
+    },
+    "makefile.launchConfigurations": [
+        {
+            "cwd": "/home/maximilian/TestGit/WCO",
+            "binaryPath": "/home/maximilian/TestGit/WCO/prog",
+            "binaryArgs": []
+        }
+    ]
 }

.vscode/targets.log

@@ -1,14 +1,14 @@
 make all --print-data-base --no-builtin-variables --no-builtin-rules --question
-make: *** No rule to make target 'all'.  Stop.
-
 # GNU Make 4.2.1
 # Built for x86_64-pc-linux-gnu
 # Copyright (C) 1988-2016 Free Software Foundation, Inc.
 # License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 # This is free software: you are free to change and redistribute it.
 # There is NO WARRANTY, to the extent permitted by law.
 
-# Make data base, printed on Mon Jul 25 18:21:56 2022
+
+# Make data base, printed on Fri Jul 29 22:02:34 2022
+
 
 # Variables
 
@@ -49,15 +49,19 @@ VSCODE_CWD = /mnt/c/Program Files/Microsoft VS Code
 # default
 MAKE_HOST := x86_64-pc-linux-gnu
 # environment
-PATH = /root/.vscode-server/bin/3b889b090b5ad5793f524b5d1d39fda662b96a2a/bin/remote-cli:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/wsl/lib:/mnt/c/Windows/system32:/mnt/c/Windows:/mnt/c/Windows/System32/Wbem:/mnt/c/Windows/System32/WindowsPowerShell/v1.0/:/mnt/c/Windows/System32/OpenSSH/:/mnt/c/Program Files (x86)/NVIDIA Corporation/PhysX/Common:/mnt/c/Program Files/PuTTY/:/mnt/c/Program Files/Microsoft VS Code/bin:/mnt/c/Program Files/Git/cmd:/mnt/c/Users/maximilian/AppData/Local/Microsoft/WindowsApps:/mnt/c/Users/maximilian/AppData/Local/GitHubDesktop/bin:/snap/bin
+
+PATH = /root/.vscode-server/bin/3b889b090b5ad5793f524b5d1d39fda662b96a2a/bin/remote-cli:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/wsl/lib:/mnt/c/Windows/system32:/mnt/c/Windows:/mnt/c/Windows/System32/Wbem:/mnt/c/Windows/System32/WindowsPowerShell/v1.0/:/mnt/c/Windows/System32/OpenSSH/:/mnt/c/Program Files (x86)/NVIDIA Corporation/PhysX/Common:/mnt/c/Program Files/PuTTY/:/mnt/c/Program Files/Microsoft VS Code/bin:/mnt/c/Program Files/Git/cmd:/mnt/c/Users/maximilian/AppData/Local/Microsoft/WindowsApps:/mnt/c/Users/maximilian/AppData/Local/GitHubDesktop/bin:/mnt/c/Users/maximilian/AppData/Local/atom/bin:/snap/bin
+
 # makefile (from 'makefile', line 4)
 KP1 = -Wall -g $(LiberyLink) $(HeaderDir)
 # environment
 XDG_RUNTIME_DIR = /mnt/wslg/runtime-dir
 # environment
 ELECTRON_RUN_AS_NODE = 1
 # environment
-VSCODE_IPC_HOOK_CLI = /mnt/wslg/runtime-dir/vscode-ipc-74815126-a7f5-46cc-85a5-0ec7948b9e40.sock
+
+VSCODE_IPC_HOOK_CLI = /mnt/wslg/runtime-dir/vscode-ipc-73a4fd10-a651-4a46-8309-55790b65579a.sock
+
 # default
 .FEATURES := target-specific order-only second-expansion else-if shortest-stem undefine oneshell archives jobserver output-sync check-symlink load
 # environment
@@ -71,15 +75,17 @@ PWD = /home/maximilian/NewGit/WCO
 # default
 .LOADED := 
 # environment
-WSL_INTEROP = /run/WSL/14181_interop
+
+WSL_INTEROP = /run/WSL/38_interop
+
 # environment
 PULSE_SERVER = /mnt/wslg/PulseServer
 # environment
 VSCODE_AMD_ENTRYPOINT = vs/workbench/api/node/extensionHostProcess
 # environment
 HOME = /root
 # makefile (from 'makefile', line 2)
-ObjectFiles = main.o Background.o GUI.o PDF.o Worksheed_Adjust.o Worksheet_Creat.o GUI_Call.o Worksheet_Status.o GUI_Status.o GUI_Update.o
+ObjectFiles = main.o Background.o GUI.o PDF.o PNG.o Worksheet_Creat.o GUI_Call.o Worksheet_Status.o GUI_Status.o GUI_Update.o
 # environment
 LESSCLOSE = /usr/bin/lesspipe %s %s
 # environment
@@ -165,9 +171,11 @@ WSL_DISTRO_NAME = Ubuntu_WorksheetEnv
 
 # Directories
 
-# . (device 2080, inode 112845): 23 files, no impossibilities.
 
-# 23 files, no impossibilities in 1 directories.
+# . (device 2080, inode 110244): 25 files, no impossibilities.
+
+
+# 25 files, no impossibilities in 1 directories.
 
 # Implicit Rules
 
@@ -208,28 +216,29 @@ GUI.c:
 #  File has not been updated.
 
 # Not a target:
-Background.c:
+PNG.c:
 #  Implicit rule search has not been done.
 #  Modification time never checked.
 #  File has not been updated.
 
 # Not a target:
-GUI_Update.c:
+Background.c:
 #  Implicit rule search has not been done.
 #  Modification time never checked.
 #  File has not been updated.
 
-Worksheed_Adjust.o: Worksheed_Adjust.c
+# Not a target:
+GUI_Update.c:
 #  Implicit rule search has not been done.
 #  Modification time never checked.
 #  File has not been updated.
-#  recipe to execute (from 'makefile', line 26):
-	gcc $(KP) -c Worksheed_Adjust.c
 
 # Not a target:
 makefile:
 #  Implicit rule search has been done.
-#  Last modified 2022-07-25 18:21:48.481498937
+
+#  Last modified 2022-07-29 15:03:35.941155973
+
 #  File has been updated.
 #  Successfully updated.
 
@@ -240,7 +249,7 @@ Worksheet_Creat.o: Worksheet_Creat.c
 #  recipe to execute (from 'makefile', line 29):
 	gcc $(KP) -c Worksheet_Creat.c
 
-prog: main.o Background.o GUI.o PDF.o Worksheed_Adjust.o Worksheet_Creat.o GUI_Call.o Worksheet_Status.o GUI_Status.o GUI_Update.o
+prog: main.o Background.o GUI.o PDF.o PNG.o Worksheet_Creat.o GUI_Call.o Worksheet_Status.o GUI_Status.o GUI_Update.o
 #  Implicit rule search has not been done.
 #  Modification time never checked.
 #  File has not been updated.
@@ -278,13 +287,10 @@ clean:
 #  Modification time never checked.
 #  File has not been updated.
 #  recipe to execute (from 'makefile', line 41):
-	rm *.o 
+
+make: *** No rule to make target 'all'.  Stop.
 
-# Not a target:
-Worksheed_Adjust.c:
-#  Implicit rule search has not been done.
-#  Modification time never checked.
-#  File has not been updated.
+	rm *.o 
 
 GUI_Call.o: GUI_Call.c
 #  Implicit rule search has not been done.
@@ -320,6 +326,13 @@ GUI.o: GUI.c
 #  recipe to execute (from 'makefile', line 17):
 	gcc $(KP) -c GUI.c
 
+PNG.o: PNG.c
+#  Implicit rule search has not been done.
+#  Modification time never checked.
+#  File has not been updated.
+#  recipe to execute (from 'makefile', line 26):
+	gcc $(KP) -c PNG.c
+
 # Not a target:
 PDF.c:
 #  Implicit rule search has not been done.
@@ -348,12 +361,14 @@ GUI_Update.o: GUI_Update.c
 
 # No general ('VPATH' variable) search path.
 
-# strcache buffers: 1 (0) / strings = 39 / storage = 407 B / avg = 10 B
-# current buf: size = 8162 B / used = 407 B / count = 39 / avg = 10 B
+# strcache buffers: 1 (0) / strings = 41 / storage = 392 B / avg = 9 B
+# current buf: size = 8162 B / used = 392 B / count = 41 / avg = 9 B
 
-# strcache performance: lookups = 76 / hit rate = 48%
+# strcache performance: lookups = 78 / hit rate = 47%
 # hash-table stats:
-# Load=39/8192=0%, Rehash=0, Collisions=1/76=1%
-# Finished Make data base on Mon Jul 25 18:21:56 2022
+
+# Load=41/8192=1%, Rehash=0, Collisions=1/78=1%
+# Finished Make data base on Fri Jul 29 22:02:34 2022
+
 
 

GUI.c

@@ -14,17 +14,25 @@
 #include "GUI.h"
 #include "PDF.h"
 #include "Worksheet.h"
+#include "PNG.h"
 
 
-
+/*
+*   This function is responsible for initializing the gtk widgets and for starting the gtk main loop
+*/
 void WCO_GUI_Start()
 {
+    //Init the gtk. It is posible to give the arguments from the main function into this init function
     gtk_init(NULL, NULL);
 
+    //Set up the gtk builder from the glade xml file
     MyGUI.MyBuilder = gtk_builder_new_from_file("MyApp.glade");
 
+    //Set up the gtk widgets with the gtk builder
     MyGUI.MyWindow1 = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MyWindow"));
     MyGUI.MyFixed1 = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MyFixed1"));
+    MyGUI.MyWorksheetFixed[0] = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MyFixed2"));
+    MyGUI.MyWorksheetFixed[1] = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MyFixed3"));
     MyGUI.MyLabel1 = GTK_LABEL(gtk_builder_get_object(MyGUI.MyBuilder, "MyLabel1"));
     MyGUI.MyLabel2 = GTK_LABEL(gtk_builder_get_object(MyGUI.MyBuilder, "MyLabel2"));
     MyGUI.MyLabel3 = GTK_LABEL(gtk_builder_get_object(MyGUI.MyBuilder, "MyLabel3"));
@@ -57,43 +65,73 @@ void WCO_GUI_Start()
     MyGUI.MySpinButton13 = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MySpinButton13"));
     MyGUI.MyFileChosserButton1 = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MyFileChosserButton1"));
     MyGUI.MyEntry1 = GTK_WIDGET(gtk_builder_get_object(MyGUI.MyBuilder, "MyEntry1"));
+
+
+
 
+    //connecting the signalls which were initilized by glade with the programm
     gtk_builder_connect_signals(MyGUI.MyBuilder, NULL);
 
+    //show the widgets in the window
     gtk_widget_show(MyGUI.MyWindow1);
 
-    //WCO_GUI_Init();
+    //init the gui
+    WCO_GUI_Init();
 
+    //starts the main loop. 
+    //to interrupt this main loop to carry out other functions is not possible. This functions have to be set up in a seperate thread
+    //but be carefull. GTK is not really thread save.
     gtk_main();
 }
 
-
+/*
+*   This function is used to initialize the GUI struct 
+*/
 void WCO_GUI_Init()
 {
+    //diffrent flags are set;
     MyGUI.showPDF = _OFF;
     MyGUI.savePDF = _OFF;
     MyGUI.saveFolder = _OFF;
+    MyGUI.showPNG = _OFF;
 
+    //the label pointer is now set to the adress of the heap 
+    MyGUI.label = malloc(3 * sizeof(char));
 
+    //Every adress of the first "Spallte" gets now a additional adress in the heap for the two dimensional array
+    for (int i = 0; i <= 2; i++)
+    {
+        MyGUI.label[i] = malloc(2 * sizeof(char));
+    }
+
+    //filling the two dimensional array with values which were used to display different label outputs
+    sprintf(MyGUI.label[0], "Z");
+    sprintf(MyGUI.label[1], "R");
+    sprintf(MyGUI.label[2], " ");
+    //Update the gui conditions
     WCO_GUI_Update_Addition();
     WCO_GUI_Update_Division();
     WCO_GUI_Update_Multiplication();
     WCO_GUI_Update_Division();
     WCO_GUI_Update_PermissionButton1();
-
 }
 
 
 /**********************************************************************************************************************/
 
 /*
-*   Called by press the X-Button in the right uppor corner
+*   Called by pressing the X-Button or the close button
 *   Closes the PDF-Viewer and the GTK Window
 */
 void exitApp()
 {
+    //Closes the PDFViewer
     WCO_GUI_Close_PDFViewer();
+
+    //quites from the gtk main loop
     gtk_main_quit();
+
+    //stops the programm
     exit(0);
 }
 
@@ -111,15 +149,18 @@ void WCO_GUI_Start_PDFViewer()
 */
 void WCO_GUI_Close_PDFViewer()
 {
+    // disables the pdf show flag which stopps the loop in which a threads whait to display the pdf-viewer
     MyGUI.showPDF = _OFF;
+
+    //closes okular via a system command
     system("killall okular");
 }
 
 /*
 *   Return the status of the viewer
 *   Is it on or off
 */
-int WCO_GUI_Status_PDFViewer()
+int WCO_GUI_Status_Get_PDFViewer()
 {
     return MyGUI.showPDF;
 }
@@ -172,6 +213,34 @@ void *WCO_GUI_PDFViewer()
     }
 }
 
+/**********************************************************************************************************************/
+/*
+*   function is responsible to display the created pdf in the gtk window as an png
+*/
+void WCO_GUI_Show_Worksheet(int page)
+{
+    //this case is true if this generated pdf was the first one since starting the programm
+    //this is necesserly because at the beginning the gtk-image is not initiliced
+    if (WCO_GUI_Status_Get_ShowPNG())
+    {
+        //this removes the container in which the image is conatained
+        //if this is not done the displayed pages lie on top of each other
+        gtk_container_remove(GTK_CONTAINER(MyGUI.MyWorksheetFixed[page]), MyGUI.MyWorksheetImage[page]);
+    }
+
+    //Initializing a new gtk image from a given file
+    MyGUI.MyWorksheetImage[page] = gtk_image_new_from_file(WCO_PNG_Get_FileName(page));
+
+    //add the image to a new container
+    gtk_container_add(GTK_CONTAINER(MyGUI.MyWorksheetFixed[page]), MyGUI.MyWorksheetImage[page]);
+
+    //display the image
+    gtk_widget_show(MyGUI.MyWorksheetImage[page]);
+
+    //move the image to the left upor corner of the container
+    gtk_fixed_move(GTK_FIXED(MyGUI.MyWorksheetFixed[page]), MyGUI.MyWorksheetImage[page], 0, 0);
+}
+