Doing some basic work on visual foundation for applets

and adding desktop stubs.


svn path=/trunk/KDE/kdebase/workspace/plasma/lib/; revision=492502

Makefile.am

@@ -2,7 +2,8 @@ INCLUDES = $(all_includes)
 KDE_CXXFLAGS = -UQT3_SUPPORT
 lib_LTLIBRARIES = libplasma.la
 
-libplasma_la_SOURCES = appletinfo.cpp plasma.cpp applet.cpp appletChain.cpp
+libplasma_la_SOURCES = plasma.cpp applet.cpp \
+	appletChain.cpp appletLayout.cpp appletCompositor.cpp
 
 libplasma_la_METASOURCES = AUTO
 
@@ -13,7 +14,8 @@ libplasma_la_includedir = $(includedir)/plasma
 
 noinst_HEADERS =
 
-libplasma_la_include_HEADERS = appletinfo.h applet.h plasma.h
+libplasma_la_include_HEADERS = applet.h plasma.h \
+	appletCompositor.h appletLayout.h
 
 #kde_kcfg_DATA = plasmaSettings.kcfg extensionSettings.kcfg
 

appletCompositor.cpp

@@ -0,0 +1,18 @@
+#include "appletCompositor.h"
+
+namespace Plasma
+{
+
+AppletCompositor::AppletCompositor(QWidget *parent)
+    : QWidget(parent)
+{
+}
+
+
+void AppletCompositor::mergeTwoApplets()
+{
+}
+
+} // Plasma namespace
+
+#include "appletCompositor.moc"

appletCompositor.h

@@ -0,0 +1,33 @@
+#ifndef APPLETCOMPOSITOR_H
+#define APPLETCOMPOSITOR_H
+
+#include <kdelibs_export.h>
+
+#include <QWidget>
+
+namespace Plasma
+{
+
+/**
+ * This is the visual representation of our applet container.
+ * Together with AppletLayout handles all GUI aspect of displaying
+ * applets. AppletCompositor is responsible for all the effects
+ * and animations that happen between applets.
+ */
+class KDE_EXPORT AppletCompositor : public QWidget
+{
+        Q_OBJECT
+    public:
+        AppletCompositor(QWidget *parent);
+
+    protected slots:
+        virtual void mergeTwoApplets();
+
+    private:
+        class Private;
+        Private *d;
+};
+
+}
+
+#endif

appletLayout.cpp

@@ -0,0 +1,13 @@
+#include "appletLayout.h"
+
+namespace Plasma
+{
+
+AppletLayout::AppletLayout(QWidget *parent)
+    : QLayout(parent)
+{
+}
+
+}
+
+#include "appletLayout.moc"

appletLayout.h

@@ -0,0 +1,33 @@
+#ifndef APPLEYLAYOUT_H
+#define APPLEYLAYOUT_H
+
+#include "kdelibs_export.h"
+
+#include <QLayout>
+
+namespace Plasma
+{
+
+/**
+ * AppletLayout is our custom layouting engine
+ * for applets. It reacts to state transition (removal,addition
+ * of applets) by emitting corresponding signals which AppletCompositor
+ * can intercept and respond with some nice animation/effect.
+ */
+class KDE_EXPORT AppletLayout : public QLayout
+{
+        Q_OBJECT
+    public:
+        AppletLayout(QWidget *parent);
+
+    signals:
+        void mergeTwoApplets();
+        void splitTwoApplets();
+    private:
+        class Private;
+        Private *d;
+};
+
+}
+
+#endif