Merging new panel in the trunk.

ede-panel/applets/pager/Pager.cpp

@@ -0,0 +1,125 @@
+#include "Applet.h"
+#include "Netwm.h"
+
+#include <string.h>
+
+#include <FL/Fl_Group.H>
+#include <FL/Fl.H>
+#include <edelib/Debug.h>
+
+#include "PagerButton.h"
+
+class Pager : public Fl_Group {
+public:
+	Pager();
+	~Pager();
+	void init_workspace_boxes(void);
+	void workspace_changed(void);
+};
+
+static void box_cb(Fl_Widget*, void *b) {
+	PagerButton *pb = (PagerButton*)b;
+
+	/* because workspaces in button labels are increased */
+	int s = pb->get_workspace_label() - 1;
+	netwm_change_workspace(s);
+}
+
+static void net_event_cb(int action, Window xid, void *data) {
+	E_RETURN_IF_FAIL(data != NULL);
+
+	if(action == NETWM_CHANGED_CURRENT_WORKSPACE) {
+		Pager *p = (Pager*)data;
+		p->workspace_changed();
+	}
+}
+
+Pager::Pager() : Fl_Group(0, 0, 25, 25, NULL) { 
+	box(FL_DOWN_BOX);
+	/* we will explicitly add elements */
+	end();
+
+	init_workspace_boxes();
+	netwm_callback_add(net_event_cb, this);
+}
+
+Pager::~Pager() {
+	netwm_callback_remove(net_event_cb);
+}
+
+void Pager::init_workspace_boxes(void) {
+	int X, Y, H;
+
+	/* prepare the sizes */
+	X = x() + Fl::box_dx(box());
+	Y = y() + Fl::box_dy(box());
+	H = h() - Fl::box_dh(box());
+
+	int  nworkspaces, curr_workspace;
+	char **names = 0;
+	char nbuf[16];
+
+	nworkspaces    = netwm_get_workspace_count();
+	curr_workspace = netwm_get_current_workspace();
+	netwm_get_workspace_names(names);
+
+	/* 
+	 * Resize group before childs, or they will be resized too, messing things up.
+	 * Here, each child is 25px wide plus 1px for delimiter between the childs .
+	 */
+	int gw = nworkspaces * (25 + 1);
+	gw += Fl::box_dw(box());
+	/* last child do not ends with 1px wide delimiter */
+	gw -= 1;
+
+	size(gw, h());
+
+	for(int i = 0; i < nworkspaces; i++) {
+		/* let box width be fixed */
+		PagerButton *bx = new PagerButton(X, Y, 25, H);
+		bx->box(FL_FLAT_BOX);
+
+		if(i == curr_workspace)
+			bx->select_it(1);
+		else
+			bx->select_it(0);
+
+		/* workspaces are started from 0 */
+		bx->set_workspace_label(i + 1);
+
+		if(names)
+			bx->copy_tooltip(names[i]);
+
+		bx->callback(box_cb, bx);
+
+		add(bx);
+		/* position for the next box */
+		X = bx->x() + bx->w() + 1;
+	}
+
+	XFreeStringList(names);
+}
+
+void Pager::workspace_changed(void) {
+	int c = netwm_get_current_workspace();
+	PagerButton *pb;
+
+	E_RETURN_IF_FAIL(c < children());
+
+	for(int i = 0; i < children(); i++) {
+		pb = (PagerButton*)child(i);
+		pb->select_it(0);
+	}
+
+	pb = (PagerButton*)child(c);
+	pb->select_it(1);
+}
+
+EDE_PANEL_APPLET_EXPORT (
+ Pager, 
+ EDE_PANEL_APPLET_OPTION_ALIGN_LEFT,
+ "Desktop switcher",
+ "0.1",
+ "empty",
+ "Sanel Zukan"
+)