[Gambas-user] [Gambas Bug Tracker] Bug #939: TextArea.ToPos not behaving as expected

[bugtracker at ...3416...]

http://gambaswiki.org/bugtracker/edit?object=BUG.939&from=L21haW4-

T. Lee DAVIDSON reported a new bug.

Summary
-------

TextArea.ToPos not behaving as expected

Type             : Bug
Priority         : Medium
Gambas version   : 3.8
Product          : GUI components


Description
-----------

It's really difficult to describe any pattern to its behaviour.

Simple example:
Create a form with a TextArea and the following code:
Public Sub Form_Open()

  Dim iPos As Integer

  TextArea1.Text = "Hello\nGambas\nWorld"

  Print "L#/C#", "Pos", "Line", "Column"
  iPos = TextArea1.ToPos(0, 0)
  Print "0/0", iPos, TextArea1.ToLine(iPos), TextArea1.ToColumn(iPos)
  iPos = TextArea1.ToPos(1, 0)
  Print "0/0", iPos, TextArea1.ToLine(iPos), TextArea1.ToColumn(iPos)
  iPos = TextArea1.ToPos(2, 2)
  Print "0/0", iPos, TextArea1.ToLine(iPos), TextArea1.ToColumn(iPos)
End

The output is:
L#/C#	Pos	Line	Column
0/0	0	0	0
0/0	7	1	1
0/0	9	1	3


System information
------------------

[System]
Gambas=3.8.4
OperatingSystem=Linux
Kernel=4.1.20-11-default
Architecture=x86_64
Distribution=SuSE NAME="openSUSE Leap"
VERSION="42.1"
VERSION_ID="42.1"
PRETTY_NAME="openSUSE Leap 42.1 (x86_64)"
ID=opensuse
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:opensuse:42.1"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://opensuse.org/"
ID_LIKE="suse"
Desktop=KDE5
Theme=Breeze
Language=en_US.UTF-8
Memory=2001M

[Libraries]
Cairo=libcairo.so.2.11400.2
DBus=libdbus-1.so.3.8.11
GStreamer=libgstreamer-1.0.so.0.405.0
GTK+2=libgtk-x11-2.0.so.0.2400.30
OpenGL=libGL.so.1.2.0
QT4=libQtCore.so.4.8.6

[Environment]
ALSA_CONFIG_PATH=/etc/alsa-pulse.conf
AUDIODRIVER=pulseaudio
COLORTERM=1
CONFIG_SITE=/usr/share/site/x86_64-unknown-linux-gnu
CPU=x86_64
CSHEDIT=emacs
CVS_RSH=ssh
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-B4LPTR4St5,guid=10e45f746146b4c7678e52e9572a2bbf
DESKTOP_SESSION=/usr/share/xsessions/plasma5
DISPLAY=:0
FROM_HEADER=
GB_GUI=gb.qt5
GPG_AGENT_INFO=/tmp/gpg-x4FUfn/S.gpg-agent:1821:1
GPG_TTY=not a tty
GS_LIB=<home>/.fonts
GTK2_RC_FILES=/etc/gtk-2.0/gtkrc:<home>/.gtkrc-2.0:<home>/.config/gtkrc-2.0
GTK_IM_MODULE=cedilla
GTK_MODULES=canberra-gtk-module
GTK_RC_FILES=/etc/gtk/gtkrc:<home>/.gtkrc:<home>/.config/gtkrc
G_BROKEN_FILENAMES=1
G_FILENAME_ENCODING=@...3501...,UTF-8,ISO-8859-15,CP1252
HISTSIZE=1000
HOME=<home>
HOST=<hostname>
HOSTNAME=<hostname>
HOSTTYPE=x86_64
INPUTRC=<home>/.inputrc
JAVA_BINDIR=/usr/lib64/jvm/java/bin
JAVA_HOME=/usr/lib64/jvm/java
JAVA_ROOT=/usr/lib64/jvm/java
JDK_HOME=/usr/lib64/jvm/java
JRE_HOME=/usr/lib64/jvm/java/jre
KDE_FULL_SESSION=true
KDE_MULTIHEAD=false
KDE_SESSION_UID=1000
KDE_SESSION_VERSION=5
LANG=en_US.UTF-8
LESS=-M -I -R
LESSCLOSE=lessclose.sh %s %s
LESSKEY=/etc/lesskey.bin
LESSOPEN=lessopen.sh %s
LESS_ADVANCED_PREPROCESSOR=no
LOGNAME=<user>
MACHTYPE=x86_64-suse-linux
MAIL=/var/spool/mail/<user>
MANPATH=/usr/local/man:/usr/share/man
MINICOM=-c on
MORE=-sl
NNTPSERVER=news
OSTYPE=linux
PAGER=less
PATH=<home>/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games
PROFILEREAD=true
PWD=<home>
PYTHONSTARTUP=/etc/pythonstart
QEMU_AUDIO_DRV=pa
QT_IM_MODULE=xim
QT_IM_SWITCHER=imsw-multi
QT_NO_GLIB=1
QT_SYSTEM_DIR=/usr/share/desktop-data
SDK_HOME=/usr/lib64/jvm/java
SDL_AUDIODRIVER=pulse
SESSION_MANAGER=local/<hostname>:@/tmp/.ICE-unix/1875,unix/<hostname>:/tmp/.ICE-unix/1875
SHELL=/bin/bash
SHLVL=1
SSH_AGENT_PID=1820
SSH_ASKPASS=/usr/lib/ssh/ksshaskpass
SSH_AUTH_SOCK=/tmp/ssh-FO4KCOd8yPKG/agent.1769
TERM=xterm
TZ=:/etc/localtime
USER=<user>
WINDOWMANAGER=/usr/bin/startkde
XAUTHLOCALHOSTNAME=<hostname>
XAUTHORITY=/tmp/xauth-1000-_0
XCURSOR_SIZE=0
XCURSOR_THEME=breeze_cursors
XDG_CONFIG_DIRS=/etc/xdg
XDG_CURRENT_DESKTOP=KDE
XDG_DATA_DIRS=/usr/share
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_CLASS=user
XDG_SESSION_DESKTOP=KDE
XDG_SESSION_ID=2
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session1
XDG_SESSION_TYPE=x11
XDG_VTNR=7
XKEYSYMDB=/usr/X11R6/lib/X11/XKeysymDB
XMODIFIERS=@...3498...=local
XNLSPATH=/usr/share/X11/nls
XSESSION_IS_UP=yes
_=/usr/lib64/libexec/kf5/start_kdeinit_wrapper