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[edit] Introduction

This guide explains how to take a simple Qt application and compile it so that it deploys to the N900 with an Icon. It is supposed to be step by step guide on how to take a (simple) Qt app and package and deploy it with an Icon using MADDE.

[edit] Prerequisites

The project I have is simple, 1 window called mainwindow.

Note: As a convention I like to keep all my code together, so I have created any extra files in the "src" folder.

[edit] Steps

  1. Create simple project through MADDE. mad pscreate -t qt_simple projectname
  2. Edit and test with Qt Creator (or whatever your favorite tool is).
  3. Once ready to deploy create a clean empty top level folder <projectname>-0.x where x is your revision number, for example C:\Madde\0.5\home\shep\wwcalc-0.1 in the OS Note: the following 3 steps apply each time you go to build.
    1. ensure there is no debian folder at the same level as src
    2. ensure there is no folder structure called <projectname>-0.x-orig left over from a failed compile
    3. remove old compiles from the Madde\home\user, for example C:\Madde\0.5\home\Shep folder.
  4. Copy the src folder from the tested Qt project into the <projectname-0.x folder
  5. Create (or obtain) an application Icon. This should be a 64x64 PNG. Call it <projectname>.png and place it in the src folder.
  6. Again inside the src folder create a new file called <projectname>.desktop Code:
    [Desktop Entry]
    Name=<Long Descriptive Project Name>
  7. Inside the src folder added a file called Getting this right is the key to getting the Makefile correct and hence the install working. At the end of this file there is a section called INSTALLS += ... for every file you want installed in a location you need an entry here. In the example here we install the target, icon and desktop files. Code:
    TARGET = wwcalc
    TEMPLATE = app
    SOURCES += qtmain.cpp \
    HEADERS += mainwindow.h 
    FORMS += mainwindow.ui 
    unix {
      PREFIX = /usr
      BINDIR = $$PREFIX/bin
      DATADIR =$$PREFIX/share
      INSTALLS += target desktop icon64 
      target.path =$$BINDIR
      desktop.path = $$DATADIR/applications/hildon
      desktop.files += wwcalc.desktop
      icon64.path = $$DATADIR/icons/hicolor/64x64/apps
      icon64.files += wwcalc.png
  8. Up one level and inside the top level folder (that is, C:\Madde\0.5\home\<YOU!>\<projectname>-0.x ) create a file called <projectname>.pro with the following exact contents. Code:
    TEMPLATE = subdirs
    SUBDIRS  = src
  9. In Madde make sure the runtime is up and connectible and then execute. Code:
    mad dh_make --createorig --single -e -c gpl

    Several people have commented that mad qmake is not required, but I find there are times that it is, ignore this next line if you wish

    mad qmake
    mad dpkg-buildpackage
    mad remote -r org.maemo.<projectname> send ../<projectname>_0.x-1_armel.deb
    mad remote -r org.maemo.<projectname> install <projectname>_0.x-1_armel.deb
  10. Uninstalling - from an X_Terminal. Code:
    sudo gainroot
    dpkg -r <projectname>

[edit] Additional information