Start working on a simple Launcher app.

Let GButton have an optional icon (GraphicsBitmap) that gets rendered in the
middle of the button if present.

Also add GraphicsBitmap::load_from_file() which allows mmap'ed RGBA32 files.
I wrote a little program to take "raw" files from GIMP and swizzle them into
the correct byte order.

Kernel/init.cpp

@@ -26,7 +26,8 @@
 #include "BochsVGADevice.h"
 
 //#define SPAWN_GUITEST
-#define SPAWN_GUITEST2
+#define SPAWN_LAUNCHER
+//#define SPAWN_GUITEST2
 #define SPAWN_CLOCK
 //#define SPAWN_FONTEDITOR
 //#define SPAWN_MULTIPLE_SHELLS
@@ -113,6 +114,9 @@ static void init_stage2()
 #ifdef SPAWN_GUITEST2
     Process::create_user_process("/bin/guitest2", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
 #endif
+#ifdef SPAWN_LAUNCHER
+    Process::create_user_process("/bin/Launcher", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
+#endif
 #ifdef SPAWN_CLOCK
     Process::create_user_process("/bin/Clock", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
 #endif

Kernel/makeall.sh

@@ -14,6 +14,8 @@ make -C ../FontEditor clean && \
 make -C ../FontEditor && \
 make -C ../Clock clean && \
 make -C ../Clock && \
+make -C ../Launcher clean && \
+make -C ../Launcher && \
 make clean &&\
 make && \
 sudo ./sync.sh

Kernel/makeuserland.sh

@@ -10,6 +10,8 @@ make -C ../Terminal clean && \
 make -C ../Terminal && \
 make -C ../Clock clean && \
 make -C ../Clock && \
+make -C ../Launcher clean && \
+make -C ../Launcher && \
 make -C ../Userland clean && \
 make -C ../Userland && \
 sudo ./sync.sh

Kernel/sync.sh

@@ -47,6 +47,7 @@ cp -v ../Userland/guitest2 mnt/bin/guitest2
 cp -v ../Userland/sysctl mnt/bin/sysctl
 cp -v ../Terminal/Terminal mnt/bin/Terminal
 cp -v ../FontEditor/FontEditor mnt/bin/FontEditor
+cp -v ../Launcher/Launcher mnt/bin/Launcher
 cp -v ../Clock/Clock mnt/bin/Clock
 ln -s FontEditor mnt/bin/ff
 ln -s Clock mnt/bin/cl