Imported Upstream version 0.6.0upstream/0.6.0

4 files changed, 990 insertions, 276 deletions

diff --git a/src/renderers/centerRenderer.vala b/src/renderers/centerRenderer.vala
index fab633e..e94714f 100644
--- a/src/renderers/centerRenderer.vala
+++ b/src/renderers/centerRenderer.vala
@@ -1,25 +1,25 @@
-/* 
-Copyright (c) 2011 by Simon Schneegans
-
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the Free
-Software Foundation, either version 3 of the License, or (at your option)
-any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-more details.
-
-You should have received a copy of the GNU General Public License along with
-this program.  If not, see <http://www.gnu.org/licenses/>. 
-*/
+/////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011-2015 by Simon Schneegans
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/////////////////////////////////////////////////////////////////////////
 
 using GLib.Math;
 
 namespace GnomePie {
 
-/////////////////////////////////////////////////////////////////////////    
+/////////////////////////////////////////////////////////////////////////
 ///  Renders the center of a Pie.
 /////////////////////////////////////////////////////////////////////////
 
@@ -30,26 +30,26 @@ public class CenterRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     private unowned PieRenderer parent;
-    
+
     /////////////////////////////////////////////////////////////////////
     /// The caption drawn in the center. Changes when the active slice
     /// changes.
     /////////////////////////////////////////////////////////////////////
-    
+
     private unowned Image? caption;
-    
+
     /////////////////////////////////////////////////////////////////////
     /// The color of the currently active slice. Used to colorize layers.
     /////////////////////////////////////////////////////////////////////
-    
+
     private Color color;
-    
+
     /////////////////////////////////////////////////////////////////////
     /// Two AnimatedValues: alpha is for global transparency (when
     /// fading in/out), activity is 1.0 if there is an active slice and
     /// 0.0 if there is no active slice.
     /////////////////////////////////////////////////////////////////////
-    
+
     private AnimatedValue activity;
     private AnimatedValue alpha;
 
@@ -64,22 +64,22 @@ public class CenterRenderer : GLib.Object {
         this.color = new Color();
         this.caption = null;
     }
-    
+
     /////////////////////////////////////////////////////////////////////
     /// Initiates the fade-out animation by resetting the targets of the
     /// AnimatedValues to 0.0.
     /////////////////////////////////////////////////////////////////////
-    
+
     public void fade_out() {
         this.activity.reset_target(0.0, Config.global.theme.fade_out_time);
         this.alpha.reset_target(0.0, Config.global.theme.fade_out_time);
     }
-    
+
     /////////////////////////////////////////////////////////////////////
     /// Should be called if the active slice of the PieRenderer changes.
     /// The members activity, caption and color are set accordingly.
     /////////////////////////////////////////////////////////////////////
-    
+
     public void set_active_slice(SliceRenderer? active_slice) {
         if (active_slice == null) {
             this.activity.reset_target(0.0, Config.global.theme.transition_time);
@@ -89,104 +89,136 @@ public class CenterRenderer : GLib.Object {
             this.color   = active_slice.color;
         }
     }
-    
+
     /////////////////////////////////////////////////////////////////////
     /// Draws all center layers and the caption.
     /////////////////////////////////////////////////////////////////////
-    
-    public void draw(double frame_time, Cairo.Context ctx, double angle, double distance) {
+
+    public void draw(double frame_time, Cairo.Context ctx, double angle, int slice_track) {
         // get all center_layers
-	    var layers = Config.global.theme.center_layers;
-        
+        var layers = Config.global.theme.center_layers;
+
         // update the AnimatedValues
         this.activity.update(frame_time);
         this.alpha.update(frame_time);
-	
-	    // draw each layer
-	    foreach (var layer in layers) {
-	        ctx.save();
+
+        // draw each layer
+        foreach (var layer in layers) {
+            ctx.save();
 
             // calculate all values needed for animation/drawing
-            double active_speed = (layer.active_rotation_mode == CenterLayer.RotationMode.TO_MOUSE) ? 
+            double active_speed = (layer.active_rotation_mode == CenterLayer.RotationMode.TO_MOUSE) ?
                 0.0 : layer.active_rotation_speed;
-            double inactive_speed = (layer.inactive_rotation_mode == CenterLayer.RotationMode.TO_MOUSE) ? 
+            double inactive_speed = (layer.inactive_rotation_mode == CenterLayer.RotationMode.TO_MOUSE) ?
                 0.0 : layer.inactive_rotation_speed;
-	        double max_scale = layer.active_scale*this.activity.val 
-	            + layer.inactive_scale*(1.0-this.activity.val);
-            double max_alpha = layer.active_alpha*this.activity.val 
+            double max_scale = layer.active_scale*this.activity.val
+                + layer.inactive_scale*(1.0-this.activity.val);
+            double max_alpha = layer.active_alpha*this.activity.val
                 + layer.inactive_alpha*(1.0-this.activity.val);
-            double colorize = ((layer.active_colorize == true) ? this.activity.val : 0.0) 
+            double colorize = ((layer.active_colorize == true) ? this.activity.val : 0.0)
                 + ((layer.inactive_colorize == true) ? 1.0 - this.activity.val : 0.0);
-            double max_rotation_speed = active_speed*this.activity.val 
+            double max_rotation_speed = active_speed*this.activity.val
                 + inactive_speed*(1.0-this.activity.val);
-            CenterLayer.RotationMode rotation_mode = ((this.activity.val > 0.5) ? 
+            CenterLayer.RotationMode rotation_mode = ((this.activity.val > 0.5) ?
                 layer.active_rotation_mode : layer.inactive_rotation_mode);
-	        
-	        if (rotation_mode == CenterLayer.RotationMode.TO_MOUSE) {
-	            double diff = angle-layer.rotation;
-	            max_rotation_speed = layer.active_rotation_speed*this.activity.val 
-	                + layer.inactive_rotation_speed*(1.0-this.activity.val);
-	            double smoothy = fabs(diff) < 0.9 ? fabs(diff) + 0.1 : 1.0; 
-	            double step = max_rotation_speed*frame_time*smoothy;
-	            
+
+            if (rotation_mode == CenterLayer.RotationMode.TO_MOUSE) {
+                double diff = angle-layer.rotation;
+                max_rotation_speed = layer.active_rotation_speed*this.activity.val
+                    + layer.inactive_rotation_speed*(1.0-this.activity.val);
+                double smoothy = fabs(diff) < 0.9 ? fabs(diff) + 0.1 : 1.0;
+                double step = max_rotation_speed*frame_time*smoothy;
+
                 if (fabs(diff) <= step || fabs(diff) >= 2.0*PI - step)
-		            layer.rotation = angle;
-	            else {
-	                if ((diff > 0 && diff < PI) || diff < -PI) layer.rotation += step;
-		            else            		                   layer.rotation -= step;
+                    layer.rotation = angle;
+                else {
+                    if ((diff > 0 && diff < PI) || diff < -PI) layer.rotation += step;
+                    else                                       layer.rotation -= step;
                 }
-                
-	        } else if (rotation_mode == CenterLayer.RotationMode.TO_ACTIVE) {
-	            max_rotation_speed *= this.activity.val;
-	            
-	            double slice_angle = parent.slice_count() > 0 ? 2*PI/parent.slice_count() : 0;
-	            double direction = (int)((angle+0.5*slice_angle) / (slice_angle))*slice_angle;
-	            double diff = direction-layer.rotation;
-	            double step = max_rotation_speed*frame_time;
-	            
+
+            } else if (rotation_mode == CenterLayer.RotationMode.TO_ACTIVE) {
+                max_rotation_speed *= this.activity.val;
+
+                double slice_angle = parent.total_slice_count > 0 ? 2*PI/parent.total_slice_count : 0;
+                double direction = (int)((angle+0.5*slice_angle) / (slice_angle))*slice_angle;
+                double diff = direction-layer.rotation;
+                double step = max_rotation_speed*frame_time;
+
                 if (fabs(diff) <= step || fabs(diff) >= 2.0*PI - step)
-		            layer.rotation = direction;
-	            else {
-	                if ((diff > 0 && diff < PI) || diff < -PI) layer.rotation += step;
-		            else            		                   layer.rotation -= step;
+                    layer.rotation = direction;
+                else {
+                    if ((diff > 0 && diff < PI) || diff < -PI) layer.rotation += step;
+                    else                                       layer.rotation -= step;
                 }
-	            
-	        } else layer.rotation += max_rotation_speed*frame_time;
-	        
-	        layer.rotation = fmod(layer.rotation+2*PI, 2*PI);
-	        
-	        if (colorize > 0.0) ctx.push_group();
-	        
-	        // transform the context
-	        ctx.rotate(layer.rotation);
-	        ctx.scale(max_scale, max_scale);
-	        
-	        // paint the layer
-	        layer.image.paint_on(ctx, this.alpha.val*max_alpha);
-            
+
+            } else layer.rotation += max_rotation_speed*frame_time;
+
+            layer.rotation = fmod(layer.rotation+2*PI, 2*PI);
+
+            if (colorize > 0.0) ctx.push_group();
+
+            // transform the context
+            ctx.rotate(layer.rotation);
+            ctx.scale(max_scale, max_scale);
+
+            // paint the layer
+            layer.image.paint_on(ctx, this.alpha.val*max_alpha);
+
             // colorize it, if necessary
             if (colorize > 0.0) {
                 ctx.set_operator(Cairo.Operator.ATOP);
                 ctx.set_source_rgb(this.color.r, this.color.g, this.color.b);
                 ctx.paint_with_alpha(colorize);
-                
+
                 ctx.set_operator(Cairo.Operator.OVER);
                 ctx.pop_group_to_source();
-	            ctx.paint();
-	        }
-            
+                ctx.paint();
+            }
+
             ctx.restore();
         }
-        
+
         // draw caption
         if (Config.global.theme.caption && caption != null && this.activity.val > 0) {
-		    ctx.save();
+            ctx.save();
             ctx.identity_matrix();
-            int pos = this.parent.size/2;
-            ctx.translate(pos, (int)(Config.global.theme.caption_position) + pos);
+            ctx.translate(this.parent.center_x, (int)(Config.global.theme.caption_position) + this.parent.center_y);
             caption.paint_on(ctx, this.activity.val*this.alpha.val);
             ctx.restore();
         }
+
+        //scroll pie
+        if (this.alpha.val > 0.1
+            && this.parent.original_visible_slice_count < this.parent.slice_count()
+            && this.parent.original_visible_slice_count > 0) {
+            int np= (this.parent.slice_count()+this.parent.original_visible_slice_count -1)/this.parent.original_visible_slice_count;
+            int cp= this.parent.first_slice_idx / this.parent.original_visible_slice_count;
+            int r= 8;       //circle radious
+            int dy= 20;     //distance between circles
+            double a= 0.8 * this.alpha.val;
+            int dx= (int)Config.global.theme.center_radius + r + 10;
+            if (this.parent.center_x + dx > this.parent.size_w)
+                dx= -dx;    //no right side, put scroll in the left size
+            ctx.save();
+            ctx.identity_matrix();
+            ctx.translate(this.parent.center_x + dx, this.parent.center_y - (np-1)*dy/2);
+            for (int i=0; i<np; i++) {
+                ctx.arc( 0, 0, r, 0, 2*PI );
+                if (i == cp){
+                    ctx.set_source_rgba(0.3,0.3,0.3, a);    //light gray stroke
+                    ctx.stroke_preserve();
+                    ctx.set_source_rgba(1,1,1, a);          //white fill
+                    ctx.fill(); //current
+                } else {
+                    ctx.set_source_rgba(1,1,1, a);          //white stroke
+                    ctx.stroke_preserve();
+                    ctx.set_source_rgba(0.3,0.3,0.3, a/4);  //light gray fill
+                    ctx.fill(); //current
+                }
+                ctx.translate(0, dy);
+            }
+            ctx.restore();
+        }
     }
 }
 
diff --git a/src/renderers/pieRenderer.vala b/src/renderers/pieRenderer.vala
index 8085758..2edee09 100644
--- a/src/renderers/pieRenderer.vala
+++ b/src/renderers/pieRenderer.vala
@@ -1,19 +1,19 @@
-/*
-Copyright (c) 2011 by Simon Schneegans
-
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the Free
-Software Foundation, either version 3 of the License, or (at your option)
-any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-more details.
-
-You should have received a copy of the GNU General Public License along with
-this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+/////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011-2015 by Simon Schneegans
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/////////////////////////////////////////////////////////////////////////
 
 using GLib.Math;
 
@@ -49,13 +49,89 @@ public class PieRenderer : GLib.Object {
     /// The width and height of the Pie in pixels.
     /////////////////////////////////////////////////////////////////////
 
-    public int size { get; private set; }
+    public int size_w { get; private set; }
+    public int size_h { get; private set; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Center position relative to window top-left corner
+    /////////////////////////////////////////////////////////////////////
+
+    public int center_x { get; private set; }
+    public int center_y { get; private set; }
 
+
+    ////////////////////////////////////////////////////////////////////
+    /// Possible show pie modes.
+    /// FULL_PIE:       Show the pie as a complete circle.
+    /// HPIE_LEFT:      Eat half pie so it can be shown at the left of the screen.
+    /// HPIE_RIGHT:     Eat half pie so it can be shown at the right of the screen.
+    /// HPIE_TOP:       Eat half pie so it can be shown at the top of the screen.
+    /// HPIE_BOTTOM:    Eat half pie so it can be shown at the bottom of the screen.
+    /// CPIE_TOP_LEFT:  Eat  3/4 pie so it can be shown at the top-left corner.
+    /// CPIE_TOP_RIGHT: Eat  3/4 pie so it can be shown at the top-right corner.
+    /// CPIE_BOT_LEFT:  Eat  3/4 pie so it can be shown at the bottom-left corner.
+    /// CPIE_BOT_RIGHT: Eat  3/4 pie so it can be shown at the bottom-right corner.
     /////////////////////////////////////////////////////////////////////
-    /// True if the pie should close when it's trigger is released.
+
+    public enum ShowPieMode {
+        FULL_PIE,
+        HPIE_LEFT, HPIE_RIGHT, HPIE_TOP, HPIE_BOTTOM,
+        CPIE_TOP_LEFT, CPIE_TOP_RIGHT, CPIE_BOT_LEFT, CPIE_BOT_RIGHT}
+
     /////////////////////////////////////////////////////////////////////
+    ///  Show pie mode: full, half-circle, corner
+    /////////////////////////////////////////////////////////////////////
+
+    public ShowPieMode pie_show_mode { get; private set; default= ShowPieMode.FULL_PIE; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Number of visible slices
+    /////////////////////////////////////////////////////////////////////
+
+    public int visible_slice_count { get; private set; }
 
-    public bool turbo_mode { get; private set; default=false; }
+    public int original_visible_slice_count { get; private set; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Number of slices in full pie (visible or not)
+    /////////////////////////////////////////////////////////////////////
+
+    public int total_slice_count { get; private set; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Maximun number of visible slices in a full pie
+    /////////////////////////////////////////////////////////////////////
+
+    public int max_visible_slices { get; private set; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// The index of the first visible slice
+    /////////////////////////////////////////////////////////////////////
+
+    public int first_slice_idx { get; private set; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Angular position of the first visible slice
+    /////////////////////////////////////////////////////////////////////
+
+    public double first_slice_angle { get; private set; }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Index of the slice where to go when up/down/left/right key is pressed
+    /// or -1 if that side of the pie was eaten
+    /////////////////////////////////////////////////////////////////////
+
+    public int up_slice_idx { get; private set; }
+    public int down_slice_idx { get; private set; }
+    public int left_slice_idx { get; private set; }
+    public int right_slice_idx { get; private set; }
+
+
+    /////////////////////////////////////////////////////////////////////
+    /// The ID of the currently loaded Pie.
+    /////////////////////////////////////////////////////////////////////
+
+    public string id { get; private set; }
 
     /////////////////////////////////////////////////////////////////////
     /// True if the pie is currently navigated with the keyboard. This is
@@ -77,6 +153,11 @@ public class PieRenderer : GLib.Object {
     private CenterRenderer center;
 
     /////////////////////////////////////////////////////////////////////
+    /// Maximum distance from the center that activates the slices
+    /////////////////////////////////////////////////////////////////////
+    private int activation_range;
+
+    /////////////////////////////////////////////////////////////////////
     /// C'tor, initializes members.
     /////////////////////////////////////////////////////////////////////
 
@@ -85,7 +166,35 @@ public class PieRenderer : GLib.Object {
         this.center = new CenterRenderer(this);
         this.quickaction = -1;
         this.active_slice = -2;
-        this.size = 0;
+        this.size_w = 0;
+        this.size_h = 0;
+        this.activation_range= 300;
+
+        this.max_visible_slices= Config.global.max_visible_slices;
+
+        set_show_mode(ShowPieMode.FULL_PIE);
+    }
+
+
+    private void get_mouse_and_screen(out int mousex, out int mousey, out int screenx, out int screeny) {
+        // get the mouse position and screen resolution
+        double x = 0.0;
+        double y = 0.0;
+
+        var display = Gdk.Display.get_default();
+        var manager = display.get_device_manager();
+        GLib.List<weak Gdk.Device?> list = manager.list_devices(Gdk.DeviceType.MASTER);
+
+        foreach(var device in list) {
+            if (device.input_source != Gdk.InputSource.KEYBOARD) {
+                Gdk.Screen screen;
+                device.get_position( out screen, out x, out y );
+            }
+        }
+        mousex= (int) x;
+        mousey= (int) y;
+        screenx= Gdk.Screen.width();
+        screeny= Gdk.Screen.height();
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -95,6 +204,8 @@ public class PieRenderer : GLib.Object {
     public void load_pie(Pie pie) {
         this.slices.clear();
 
+        this.id = pie.id;
+
         int count = 0;
         foreach (var group in pie.action_groups) {
             foreach (var action in group.actions) {
@@ -110,18 +221,200 @@ public class PieRenderer : GLib.Object {
             }
         }
 
-        this.turbo_mode = PieManager.get_is_turbo(pie.id);
-
         this.set_highlighted_slice(this.quickaction);
 
-        this.size = (int)fmax(2*Config.global.theme.radius + 2*Config.global.theme.slice_radius*Config.global.theme.max_zoom,
-                              2*Config.global.theme.center_radius);
 
+        ShowPieMode showpie= ShowPieMode.FULL_PIE;
+        //set full pie to determine the number of visible slices
+        set_show_mode(showpie);
+
+        int sz0= (int)fmax(2*Config.global.theme.radius + 2*Config.global.theme.visible_slice_radius*Config.global.theme.max_zoom,
+                           2*Config.global.theme.center_radius);
+
+        int sz= sz0;
         // increase size if there are many slices
-        if (slices.size > 0) {
-            this.size = (int)fmax(this.size,
-                (((Config.global.theme.slice_radius + Config.global.theme.slice_gap)/tan(PI/slices.size))
-                + Config.global.theme.slice_radius)*2*Config.global.theme.max_zoom);
+        if (this.total_slice_count > 0) {
+            sz = (int)fmax(sz0,
+                (((Config.global.theme.slice_radius + Config.global.theme.slice_gap)/tan(PI/this.total_slice_count))
+                 + Config.global.theme.visible_slice_radius)*2*Config.global.theme.max_zoom);
+        }
+
+
+
+
+        // get mouse position and screen resolution
+        int mouse_x, mouse_y, screen_x, screen_y;
+        get_mouse_and_screen( out mouse_x, out mouse_y, out screen_x, out screen_y );
+
+        //reduce the window size if needed to get closer to the actual mouse position
+        int reduce_szx= 1;
+        int reduce_szy= 1;
+
+        if (PieManager.get_is_auto_shape(pie.id) && !PieManager.get_is_centered(pie.id)) {
+            //set the best show mode that put the mouse near the center
+            if (mouse_x < sz/2) {
+                if (mouse_y < sz/2)
+                    showpie= ShowPieMode.CPIE_TOP_LEFT;         //show 1/4 pie
+                else if (screen_y > 0 && screen_y-mouse_y < sz/2)
+                    showpie= ShowPieMode.CPIE_BOT_LEFT;         //show 1/4 pie
+                else
+                    showpie= ShowPieMode.HPIE_LEFT;             //show 1/2 pie
+
+            } else if (mouse_y < sz/2) {
+                if (screen_x > 0 && screen_x-mouse_x < sz/2)
+                    showpie= ShowPieMode.CPIE_TOP_RIGHT;        //show 1/4 pie
+                else
+                    showpie= ShowPieMode.HPIE_TOP;              //show 1/2 pie
+
+            } else if (screen_x > 0 && screen_x-mouse_x < sz/2) {
+                if (screen_y > 0 && screen_y-mouse_y < sz/2)
+                    showpie= ShowPieMode.CPIE_BOT_RIGHT;        //show 1/4 pie
+                else
+                    showpie= ShowPieMode.HPIE_RIGHT;            //show 1/2 pie
+
+            } else if (screen_y > 0 && screen_y-mouse_y < sz/2)
+                showpie= ShowPieMode.HPIE_BOTTOM;               //show 1/2 pie
+
+
+        } else {
+            //if the pie is centered in the screen, don't reduce the size
+            if (PieManager.get_is_centered(pie.id)) {
+                reduce_szx= 0;
+                reduce_szy= 0;
+            }
+
+            //select the configured shape
+            //convert from radio-buttum number to ShowPieMode enum
+            switch( PieManager.get_shape_number(pie.id) ) {
+            case 1:
+                showpie= ShowPieMode.CPIE_BOT_RIGHT;
+                if (screen_x-mouse_x > sz/2)
+                    reduce_szx= 0; //keep full width
+                if (screen_y-mouse_y > sz/2)
+                    reduce_szy= 0; //keep full height
+                break;
+            case 2:
+                showpie= ShowPieMode.HPIE_RIGHT;
+                if (screen_x-mouse_x > sz/2)
+                    reduce_szx= 0; //keep full width
+                break;
+            case 3:
+                showpie= ShowPieMode.CPIE_TOP_RIGHT;
+                if (screen_x-mouse_x > sz/2)
+                    reduce_szx= 0; //keep full width
+                if (mouse_y > sz/2)
+                    reduce_szy= 0; //keep full height
+                break;
+            case 4:
+                showpie= ShowPieMode.HPIE_BOTTOM;
+                if (screen_y-mouse_y > sz/2)
+                    reduce_szy= 0; //keep full height
+                break;
+            case 6:
+                showpie= ShowPieMode.HPIE_TOP;
+                if (mouse_y > sz/2)
+                    reduce_szy= 0; //keep full height
+                break;
+            case 7:
+                showpie= ShowPieMode.CPIE_BOT_LEFT;
+                if (mouse_x > sz/2)
+                    reduce_szx= 0; //keep full width
+                if (screen_y-mouse_y > sz/2)
+                    reduce_szy= 0; //keep full height
+                break;
+            case 8:
+                showpie= ShowPieMode.HPIE_LEFT;
+                if (mouse_x > sz/2)
+                    reduce_szx= 0; //keep full width
+                break;
+            case 9:
+                showpie= ShowPieMode.CPIE_TOP_LEFT;
+                if (mouse_x > sz/2)
+                    reduce_szx= 0; //keep full width
+                if (mouse_y > sz/2)
+                    reduce_szy= 0; //keep full height
+                break;
+            }
+        }
+        //set the new show pie mode
+        set_show_mode(showpie);
+
+        //recalc size
+        sz = sz0;
+        if (this.total_slice_count > 0) {
+            sz = (int)fmax(sz0,
+                (((Config.global.theme.slice_radius + Config.global.theme.slice_gap)/tan(PI/this.total_slice_count))
+                 + Config.global.theme.visible_slice_radius)*2*Config.global.theme.max_zoom);
+        }
+        //activation_range = normal pie radius + "outer" activation_range
+        this.activation_range= (int)((double)Config.global.activation_range + sz/(2*Config.global.theme.max_zoom));
+
+        int szx = 1; //full width
+        int szy = 1; //full height
+        switch(this.pie_show_mode) {
+            //half pie
+            case ShowPieMode.HPIE_LEFT:
+                szx = 0; //half width, center to the left
+                break;
+            case ShowPieMode.HPIE_RIGHT:
+                szx = 2; //half width, center to the right
+                break;
+            case ShowPieMode.HPIE_TOP:
+                szy = 0; //half height, center to the top
+                break;
+            case ShowPieMode.HPIE_BOTTOM:
+                szy = 2; //half height, center to the bottom
+                break;
+
+            //cuarter pie
+            case ShowPieMode.CPIE_TOP_LEFT:
+                szx = 0; //half width, center to the left
+                szy = 0; //half height, center to the top
+                break;
+            case ShowPieMode.CPIE_TOP_RIGHT:
+                szx = 2; //half width, center to the right
+                szy = 0; //half height, center to the top
+                break;
+            case ShowPieMode.CPIE_BOT_LEFT:
+                szx = 0; //half width, center to the left
+                szy = 2; //half height, center to the bottom
+                break;
+            case ShowPieMode.CPIE_BOT_RIGHT:
+                szx = 2; //half width, center to the right
+                szy = 2; //half height, center to the bottom
+                break;
+        }
+        if (reduce_szx == 0)
+            szx = 1;    //don't reduce width
+        if (reduce_szy == 0)
+            szy = 1;    //don't reduce height
+
+        int rc = (int)Config.global.theme.center_radius;
+        if (szx == 1 ) {
+            //full width
+            this.size_w = sz;
+            this.center_x = sz/2;    //center position
+        } else {
+            //half width
+            this.size_w = sz/2 + rc;
+            if (szx == 0) {
+                this.center_x = rc;    //center to the left
+            } else {
+                this.center_x = this.size_w-rc;    //center to the right
+            }
+        }
+        if (szy == 1) {
+            //full heigth
+            this.size_h = sz;
+            this.center_y = sz/2;    //center position
+        } else {
+            //half heigth
+            this.size_h = sz/2 + rc;
+            if (szy == 0) {
+                this.center_y = rc;    //center to the top
+            } else {
+                this.center_y = this.size_h-rc;    //center to the bottom
+            }
         }
     }
 
@@ -130,12 +423,16 @@ public class PieRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     public void activate() {
-        if (this.active_slice >= 0 && this.active_slice < this.slices.size) {
+        if (this.active_slice >= this.first_slice_idx
+            && this.active_slice < this.first_slice_idx+this.visible_slice_count) {
             slices[active_slice].activate();
         }
 
-        foreach (var slice in this.slices)
-            slice.fade_out();
+        //foreach (var slice in this.slices)
+        //    slice.fade_out();
+        for (int i= 0; i < this.visible_slice_count; ++i) {
+            this.slices[ i+this.first_slice_idx ].fade_out();
+        }
 
         center.fade_out();
     }
@@ -145,29 +442,23 @@ public class PieRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     public void cancel() {
-        foreach (var slice in this.slices)
-            slice.fade_out();
+        //foreach (var slice in this.slices)
+        //    slice.fade_out();
+        for (int i= 0; i < this.visible_slice_count; ++i) {
+            this.slices[ i+this.first_slice_idx ].fade_out();
+        }
 
         center.fade_out();
     }
 
+
     /////////////////////////////////////////////////////////////////////
     /// Called when the up-key is pressed. Selects the next slice towards
     /// the top.
     /////////////////////////////////////////////////////////////////////
 
     public void select_up() {
-        int bottom = this.slice_count()/4;
-        int top = this.slice_count()*3/4;
-
-        if (this.active_slice == -1 || this.active_slice == bottom)
-           this.set_highlighted_slice(top);
-        else if (this.active_slice > bottom && this.active_slice < top)
-           this.set_highlighted_slice(this.active_slice+1);
-        else if (this.active_slice != top)
-           this.set_highlighted_slice((this.active_slice-1+this.slice_count())%this.slice_count());
-
-        this.key_board_control = true;
+        move_active_slice(this.up_slice_idx, this.down_slice_idx);
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -176,17 +467,7 @@ public class PieRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     public void select_down() {
-        int bottom = this.slice_count()/4;
-        int top = this.slice_count()*3/4;
-
-        if (this.active_slice == -1 || this.active_slice == top)
-           this.set_highlighted_slice(bottom);
-        else if (this.active_slice > bottom && this.active_slice < top)
-           this.set_highlighted_slice(this.active_slice-1);
-        else if (this.active_slice != bottom)
-           this.set_highlighted_slice((this.active_slice+1)%this.slice_count());
-
-        this.key_board_control = true;
+        move_active_slice(this.down_slice_idx, this.up_slice_idx);
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -195,17 +476,7 @@ public class PieRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     public void select_left() {
-        int left = this.slice_count()/2;
-        int right = 0;
-
-        if (this.active_slice == -1 || this.active_slice == right)
-           this.set_highlighted_slice(left);
-        else if (this.active_slice > left)
-           this.set_highlighted_slice(this.active_slice-1);
-        else if (this.active_slice < left)
-           this.set_highlighted_slice(this.active_slice+1);
-
-        this.key_board_control = true;
+        move_active_slice(this.left_slice_idx, this.right_slice_idx);
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -214,17 +485,79 @@ public class PieRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     public void select_right() {
-        int left = this.slice_count()/2;
-        int right = 0;
+        move_active_slice(this.right_slice_idx, this.left_slice_idx);
+    }
 
-        if (this.active_slice == -1 || this.active_slice == left)
-           this.set_highlighted_slice(right);
-        else if (this.active_slice > left)
-           this.set_highlighted_slice((this.active_slice+1)%this.slice_count());
-        else if (this.active_slice < left && this.active_slice != right)
-           this.set_highlighted_slice((this.active_slice-1+this.slice_count())%this.slice_count());
+    /////////////////////////////////////////////////////////////////////
+    /// Called when the page_up-key is pressed. Selects the next
+    /// group of slices.
+    /////////////////////////////////////////////////////////////////////
 
-        this.key_board_control = true;
+    public void select_nextpage() {
+        if (this.first_slice_idx+this.visible_slice_count < slices.size) {
+            //advance one page
+            this.first_slice_idx += this.visible_slice_count;
+            if (this.first_slice_idx+this.visible_slice_count >= slices.size) {
+                this.visible_slice_count= slices.size - this.first_slice_idx;
+            }
+            this.reset_sclice_anim();
+            this.set_highlighted_slice(-1);
+            calc_key_navigation_pos();
+            this.key_board_control = true;
+
+        } else if (this.first_slice_idx > 0) {
+            //go to first page
+            this.first_slice_idx= 0;
+            this.reset_sclice_anim();
+            //recover the original value
+            this.visible_slice_count= this.original_visible_slice_count;
+            this.reset_sclice_anim();
+            this.set_highlighted_slice(-1);
+            calc_key_navigation_pos();
+            this.key_board_control = true;
+        }
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Called when the page_down-key is pressed. Selects the previous
+    /// group of slices.
+    /////////////////////////////////////////////////////////////////////
+
+    public void select_prevpage() {
+        if (this.first_slice_idx > 0) {
+            //go back one page
+            //recover the original value
+            this.visible_slice_count= this.original_visible_slice_count;
+            this.first_slice_idx -= this.visible_slice_count;
+            if (this.first_slice_idx < 0) {
+                this.first_slice_idx= 0;
+            }
+            this.reset_sclice_anim();
+            this.set_highlighted_slice(-1);
+            calc_key_navigation_pos();
+            this.key_board_control = true;
+
+        } else if (this.visible_slice_count < slices.size) {
+            //go to last page
+            int n= slices.size % this.original_visible_slice_count;
+            if (n == 0)
+                //all pages have the same number of slices
+                this.visible_slice_count= this.original_visible_slice_count;
+            else
+                //last page has less slices than previous
+                this.visible_slice_count= n;
+            this.first_slice_idx= slices.size - this.visible_slice_count;
+            this.reset_sclice_anim();
+            this.set_highlighted_slice(-1);
+            calc_key_navigation_pos();
+            this.key_board_control = true;
+        }
+    }
+
+    private void reset_sclice_anim() {
+        //reset animation values in all the new visible slices
+        for (int i= 0; i < this.visible_slice_count; ++i)
+            this.slices[ i+this.first_slice_idx ].reset_anim();
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -240,41 +573,58 @@ public class PieRenderer : GLib.Object {
     /////////////////////////////////////////////////////////////////////
 
     public void draw(double frame_time, Cairo.Context ctx, int mouse_x, int mouse_y) {
-        if (this.size > 0) {
-	        double distance = sqrt(mouse_x*mouse_x + mouse_y*mouse_y);
-	        double angle = 0.0;
-
-	        if (this.key_board_control) {
-	            angle = 2.0*PI*this.active_slice/(double)slice_count();
-	        } else {
-
-	            if (distance > 0) {
-	                angle = acos(mouse_x/distance);
-		            if (mouse_y < 0)
-		                angle = 2*PI - angle;
-	            }
-
-	            int next_active_slice = this.active_slice;
-
-	            if (distance < Config.global.theme.active_radius
-	                && this.quickaction >= 0 && this.quickaction < this.slices.size) {
+        if (this.size_w > 0) {
+            double distance = sqrt(mouse_x*mouse_x + mouse_y*mouse_y);
+            double angle = 0.0;
+            int slice_track= 0;
+
+            if (this.key_board_control) {
+                int n= this.active_slice - this.first_slice_idx;
+                angle = 2.0*PI*n/(double)this.total_slice_count + this.first_slice_angle;
+                slice_track= 1;
+            } else {
+
+                if (distance > 0) {
+                    angle = acos(mouse_x/distance);
+                    if (mouse_y < 0)
+                        angle = 2*PI - angle;
+                }
 
-	                next_active_slice = this.quickaction;
-	                angle = 2.0*PI*quickaction/(double)slice_count();
-	            } else if (distance > Config.global.theme.active_radius && this.slice_count() > 0 && distance < Config.global.activation_range) {
-	                next_active_slice = (int)(angle*slices.size/(2*PI) + 0.5) % this.slice_count();
-	            } else {
-	                next_active_slice = -1;
-	            }
+                int next_active_slice = this.active_slice;
+
+                if (distance < Config.global.theme.active_radius
+                    && this.quickaction >= this.first_slice_idx
+                    && this.quickaction < this.first_slice_idx+this.visible_slice_count) {
+
+                    next_active_slice = this.quickaction;
+                    int n= this.quickaction - this.first_slice_idx;
+                    angle = 2.0*PI*n/(double)this.total_slice_count + this.first_slice_angle;
+
+                } else if (distance > Config.global.theme.active_radius && this.total_slice_count > 0
+                           && distance < this.activation_range) {
+                    double a= angle-this.first_slice_angle;
+                    if (a < 0)
+                        a= a + 2*PI;
+                    next_active_slice = (int)(a*this.total_slice_count/(2*PI) + 0.5) % this.total_slice_count;
+                    if (next_active_slice >= this.visible_slice_count)
+                        next_active_slice = -1;
+                    else {
+                        next_active_slice = next_active_slice + this.first_slice_idx;
+                        slice_track= 1;
+                    }
+                } else {
+                    next_active_slice = -1;
+                }
 
-	            this.set_highlighted_slice(next_active_slice);
-	        }
+                this.set_highlighted_slice(next_active_slice);
+            }
 
-            center.draw(frame_time, ctx, angle, distance);
+            center.draw(frame_time, ctx, angle, slice_track);
 
-	        foreach (var slice in this.slices)
-		        slice.draw(frame_time, ctx, angle, distance);
-		}
+            for (int i= 0; i < this.visible_slice_count; ++i) {
+               this.slices[ i+this.first_slice_idx ].draw(frame_time, ctx, angle, slice_track);
+            }
+        }
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -291,21 +641,215 @@ public class PieRenderer : GLib.Object {
 
     public void set_highlighted_slice(int index) {
         if (index != this.active_slice) {
-            if (index >= 0 && index < this.slice_count())
+            if (index >= this.first_slice_idx && index < this.first_slice_idx+this.visible_slice_count)
                 this.active_slice = index;
-            else if (this.quickaction >= 0)
-                this.active_slice = this.quickaction;
             else
                 this.active_slice = -1;
 
-            SliceRenderer? active = (this.active_slice >= 0 && this.active_slice < this.slice_count()) ?
+            SliceRenderer? active = (this.active_slice >= 0 && this.active_slice < slices.size) ?
                                      this.slices[this.active_slice] : null;
 
             center.set_active_slice(active);
 
-            foreach (var slice in this.slices)
-                slice.set_active_slice(active);
+            for (int i= 0; i < this.visible_slice_count; ++i) {
+               this.slices[ i+this.first_slice_idx ].set_active_slice(active);
+            }
+        }
+    }
+
+    private void set_show_mode(ShowPieMode show_mode) {
+        //The index of the first visible slice
+        this.first_slice_idx= 0;
+        //Angular position of the first visible slice
+        this.first_slice_angle= 0;
+
+        int mult= 1;
+        switch(show_mode) {
+            //half pie
+            case ShowPieMode.HPIE_LEFT:
+                mult= 2;
+                this.first_slice_angle= -PI/2;
+                break;
+            case ShowPieMode.HPIE_RIGHT:
+                mult= 2;
+                this.first_slice_angle= PI/2;
+                break;
+            case ShowPieMode.HPIE_TOP:
+                mult= 2;
+                break;
+            case ShowPieMode.HPIE_BOTTOM:
+                this.first_slice_angle= PI;
+                mult= 2;
+                break;
+
+            //cuarter pie
+            case ShowPieMode.CPIE_TOP_LEFT:
+                mult= 4;
+                break;
+            case ShowPieMode.CPIE_TOP_RIGHT:
+                this.first_slice_angle= PI/2;
+                mult= 4;
+                break;
+            case ShowPieMode.CPIE_BOT_LEFT:
+                this.first_slice_angle= -PI/2;
+                mult= 4;
+                break;
+            case ShowPieMode.CPIE_BOT_RIGHT:
+                this.first_slice_angle= PI;
+                mult= 4;
+                break;
+
+            default:     //ShowPieMode.FULL_PIE or invalid values
+                show_mode= ShowPieMode.FULL_PIE;
+                break;
+        }
+        this.pie_show_mode= show_mode;
+        //limit the number of visible slices
+        int maxview= this.max_visible_slices / mult;
+        //Number of visible slices
+        this.visible_slice_count= (int)fmin(slices.size, maxview);
+        //Number of slices in full pie (visible or not)
+        this.total_slice_count= this.visible_slice_count*mult;
+        if (mult > 1 && slices.size > 1) {
+            this.total_slice_count -= mult;
         }
+
+        //keep a copy of the original value since page up/down change it
+        original_visible_slice_count= visible_slice_count;
+
+        calc_key_navigation_pos();
+    }
+
+    private void calc_key_navigation_pos() {
+           //calc slices index for keyboard navigation
+
+        int a= this.first_slice_idx;
+        int b= this.first_slice_idx + this.visible_slice_count/4;
+        int c= this.first_slice_idx + this.visible_slice_count/2;
+        int d= this.first_slice_idx + (this.visible_slice_count*3)/4;
+        int e= this.first_slice_idx + this.visible_slice_count -1;
+        switch(this.pie_show_mode) {
+            //half pie
+            case ShowPieMode.HPIE_LEFT:
+                this.up_slice_idx=    a;
+                this.right_slice_idx= c;
+                this.down_slice_idx=  e;
+                this.left_slice_idx=  -1;    //no left slice, go up instead
+                break;
+            case ShowPieMode.HPIE_RIGHT:
+                this.down_slice_idx=  a;
+                this.left_slice_idx=  c;
+                this.up_slice_idx=    e;
+                this.right_slice_idx= -1;   //no right slice, go down instead
+                break;
+            case ShowPieMode.HPIE_TOP:
+                this.right_slice_idx= a;
+                this.down_slice_idx=  c;
+                this.left_slice_idx=  e;
+                this.up_slice_idx=    -1;    //no up slice, go left instead
+                break;
+            case ShowPieMode.HPIE_BOTTOM:
+                this.left_slice_idx=  a;
+                this.up_slice_idx=    c;
+                this.right_slice_idx= e;
+                this.down_slice_idx=  -1;   //no down slice, go right instead
+                break;
+
+            //cuarter pie
+            case ShowPieMode.CPIE_TOP_LEFT:
+                this.right_slice_idx= a;
+                this.down_slice_idx=  e;
+                this.up_slice_idx=    -1;    //no up slice, go right instead
+                this.left_slice_idx=  -1;    //no left slice, go down instead
+                break;
+            case ShowPieMode.CPIE_TOP_RIGHT:
+                this.down_slice_idx=  a;
+                this.left_slice_idx=  e;
+                this.up_slice_idx=    -1;    //no up slice, go left instead
+                this.right_slice_idx= -1;    //no righ slice, go down instead
+                break;
+            case ShowPieMode.CPIE_BOT_LEFT:
+                this.up_slice_idx=    a;
+                this.right_slice_idx= e;
+                this.down_slice_idx=  -1;    //no down slice, go right instead
+                this.left_slice_idx=  -1;    //no left slice, go up instead
+                break;
+            case ShowPieMode.CPIE_BOT_RIGHT:
+                this.left_slice_idx=  a;
+                this.up_slice_idx=    e;
+                this.down_slice_idx=  -1;    //no down slice, go left instead
+                this.right_slice_idx= -1;    //no right slice, go up instead
+                break;
+
+            default:     //ShowPieMode.FULL_PIE or invalid values
+                this.right_slice_idx= a;
+                this.down_slice_idx=  b;
+                this.left_slice_idx=  c;
+                this.up_slice_idx=    d;
+                break;
+        }
+    }
+
+
+   /////////////////////////////////////////////////////////////////////
+    /// keyboard navigation helper
+    /// move current position one slice towards the given extreme
+    /////////////////////////////////////////////////////////////////////
+
+    private void move_active_slice(int extreme, int other_extreme ) {
+        int pos= this.active_slice;
+
+        if (pos < 0 || pos == extreme) {
+            //no actual position or allready at the extreme
+            pos= extreme; //go to the extreme pos
+
+        } else if (extreme == -1) {
+            //the extreme was eaten, just go away from the other_extreme
+            if (pos > other_extreme || other_extreme == 0) {
+                if (pos < this.visible_slice_count+this.first_slice_idx-1)
+                    pos++;
+            } else if (pos > this.first_slice_idx)
+                pos--;
+
+        } else if (other_extreme == -1) {
+            //the other_extreme was eaten, just get closer to the extreme
+            if (pos < extreme)
+                pos++;
+            else if (pos > extreme)
+                pos--;
+
+        } else if (pos == other_extreme) {
+            //both extremes are present
+            //jump quickly form one extreme to the other
+            pos= extreme; //go to the extreme pos
+
+        } else {
+            //both extremes are present
+            //add or substract 1 to position in a circular manner
+            if (extreme > other_extreme) {
+                if (pos > other_extreme && pos < extreme)
+                    //other_extreme < pos < extreme
+                    pos= pos+1;
+                else
+                    pos= pos-1;
+            } else {
+                if (pos > extreme && pos < other_extreme)
+                    //extreme < pos < other_extreme
+                    pos= pos-1;
+                else
+                    pos= pos+1;
+            }
+
+            if (pos < this.first_slice_idx)
+                pos= this.visible_slice_count-1+this.first_slice_idx;
+
+            if (pos >= this.visible_slice_count+this.first_slice_idx)
+                pos= this.first_slice_idx;
+        }
+
+        this.set_highlighted_slice(pos);
+
+        this.key_board_control = true;
     }
 }
 
diff --git a/src/renderers/pieWindow.vala b/src/renderers/pieWindow.vala
index da346dd..4d5d35a 100644..100755
--- a/src/renderers/pieWindow.vala
+++ b/src/renderers/pieWindow.vala
@@ -1,19 +1,19 @@
-/*
-Copyright (c) 2011 by Simon Schneegans
-
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the Free
-Software Foundation, either version 3 of the License, or (at your option)
-any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-more details.
-
-You should have received a copy of the GNU General Public License along with
-this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+/////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011-2015 by Simon Schneegans
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/////////////////////////////////////////////////////////////////////////
 
 using GLib.Math;
 
@@ -45,6 +45,31 @@ public class PieWindow : Gtk.Window {
     public Image background { get; private set; default=null; }
 
     /////////////////////////////////////////////////////////////////////
+    /// The background image position and size.
+    /////////////////////////////////////////////////////////////////////
+
+    private int back_x;
+    private int back_y;
+    private int back_sz_x;
+    private int back_sz_y;
+
+    /////////////////////////////////////////////////////////////////////
+    /// Some panels moves the window after it was realized.
+    /// This value set the maximum allowed panel height or width.
+    /// (how many pixels the window could be moved in every direction
+    ///  from the screen borders towards the center)
+    /////////////////////////////////////////////////////////////////////
+
+    private int panel_sz = 64;
+
+    /////////////////////////////////////////////////////////////////////
+    /// This value set the maximum allowed mouse movement in pixels
+    /// from the capture to the show point in every direction.
+    /////////////////////////////////////////////////////////////////////
+
+    private int mouse_move = 30;
+
+    /////////////////////////////////////////////////////////////////////
     /// The owned renderer.
     /////////////////////////////////////////////////////////////////////
 
@@ -97,11 +122,12 @@ public class PieWindow : Gtk.Window {
         this.add_events(Gdk.EventMask.BUTTON_RELEASE_MASK |
                         Gdk.EventMask.KEY_RELEASE_MASK |
                         Gdk.EventMask.KEY_PRESS_MASK |
-                        Gdk.EventMask.POINTER_MOTION_MASK);
+                        Gdk.EventMask.POINTER_MOTION_MASK |
+                        Gdk.EventMask.SCROLL_MASK );
 
         // activate on left click
         this.button_release_event.connect ((e) => {
-            if (e.button == 1 || this.renderer.turbo_mode) this.activate_slice();
+            if (e.button == 1 || PieManager.get_is_turbo(this.renderer.id)) this.activate_slice();
             return true;
         });
 
@@ -124,7 +150,7 @@ public class PieWindow : Gtk.Window {
         // activate on key release if turbo_mode is enabled
         this.key_release_event.connect((e) => {
             last_key = 0;
-            if (this.renderer.turbo_mode)
+            if (PieManager.get_is_turbo(this.renderer.id))
                 this.activate_slice();
             else
                 this.handle_key_release(e.keyval);
@@ -142,6 +168,15 @@ public class PieWindow : Gtk.Window {
             FocusGrabber.grab(this.get_window(), true, true, false);
         });
 
+        this.scroll_event.connect((e) => {
+            if (e.direction == Gdk.ScrollDirection.UP)
+                this.renderer.select_prevpage();
+
+            else if (e.direction == Gdk.ScrollDirection.DOWN)
+                this.renderer.select_nextpage();
+            return true;
+        });
+
         // draw the pie on expose
         this.draw.connect(this.draw_window);
     }
@@ -153,7 +188,7 @@ public class PieWindow : Gtk.Window {
     public void load_pie(Pie pie) {
         this.renderer.load_pie(pie);
         this.set_window_position(pie);
-        this.set_size_request(renderer.size, renderer.size);
+        this.set_size_request(renderer.size_w, renderer.size_h);
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -162,13 +197,56 @@ public class PieWindow : Gtk.Window {
 
     public void open() {
         this.realize();
-
         // capture the background image if there is no compositing
         if (!this.has_compositing) {
-            int x, y, width, height;
-            this.get_position(out x, out y);
-            this.get_size(out width, out height);
-            this.background = new Image.capture_screen(x, y, width+1, height+1);
+            this.get_position(out this.back_x, out this.back_y);
+            this.get_size(out this.back_sz_x, out this.back_sz_y);
+            this.back_sz_x++;
+            this.back_sz_y++;
+
+            int screenx= Gdk.Screen.width();
+            int screeny= Gdk.Screen.height();
+
+            //allow some window movement from the screen borders
+            //(some panels moves the window after it was realized)
+            int dx = this.panel_sz - this.back_x;
+            if (dx > 0)
+                this.back_sz_x += dx;
+            dx = this.panel_sz - (screenx - this.back_x - this.back_sz_x +1);
+            if (dx > 0) {
+                this.back_sz_x += dx;
+                this.back_x  -= dx;
+            }
+
+            int dy = this.panel_sz - this.back_y;
+            if (dy > 0)
+                this.back_sz_y += dy;
+            dy = this.panel_sz - (screeny - this.back_y - this.back_sz_y +1);
+            if (dy > 0) {
+                this.back_sz_y += dy;
+                this.back_y  -= dy;
+            }
+
+            //also tolerate some mouse movement
+            this.back_x -= this.mouse_move;
+            this.back_sz_x += this.mouse_move*2;
+            this.back_y -= this.mouse_move;
+            this.back_sz_y += this.mouse_move*2;
+
+            //make sure we don't go outside the screen
+            if (this.back_x < 0) {
+                this.back_sz_x += this.back_x;
+                this.back_x = 0;
+            }
+            if (this.back_y < 0) {
+                this.back_sz_y += this.back_y;
+                this.back_y = 0;
+            }
+            if (this.back_x + this.back_sz_x > screenx)
+                this.back_sz_x = screenx - this.back_x;
+            if (this.back_y + this.back_sz_y > screeny)
+                this.back_sz_y = screeny - this.back_y;
+            this.background = new Image.capture_screen(this.back_x, this.back_y, this.back_sz_x, this.back_sz_y);
         }
 
         // capture the input focus
@@ -179,11 +257,20 @@ public class PieWindow : Gtk.Window {
         this.timer.start();
         this.queue_draw();
 
+        bool warp_pointer = PieManager.get_is_warp(this.renderer.id);
+
         // the main draw loop
         GLib.Timeout.add((uint)(1000.0/Config.global.refresh_rate), () => {
             if (this.closed)
                 return false;
 
+            if (warp_pointer) {
+                warp_pointer = false;
+                int x, y;
+                this.get_center_pos(out x, out y);
+                this.set_mouse_position(x, y);
+            }
+
             this.queue_draw();
             return this.visible;
         });
@@ -194,12 +281,46 @@ public class PieWindow : Gtk.Window {
     /////////////////////////////////////////////////////////////////////
 
     public void get_center_pos(out int out_x, out int out_y) {
-        int x=0, y=0, width=0, height=0;
+        int x=0, y=0; //width=0, height=0;
         this.get_position(out x, out y);
-        this.get_size(out width, out height);
+        out_x = x + renderer.center_x;
+        out_y = y + renderer.center_y;
+    }
 
-        out_x = x + width/2;
-        out_y = y + height/2;
+    /////////////////////////////////////////////////////////////////////
+    /// Gets the absolute position of the mouse pointer.
+    /////////////////////////////////////////////////////////////////////
+
+    private void get_mouse_position(out int mx, out int my) {
+        // get the mouse position
+        mx = 0;
+        my = 0;
+        Gdk.ModifierType mask;
+
+        var display = Gdk.Display.get_default();
+        var manager = display.get_device_manager();
+        GLib.List<weak Gdk.Device?> list = manager.list_devices(Gdk.DeviceType.MASTER);
+
+        foreach(var device in list) {
+            if (device.input_source != Gdk.InputSource.KEYBOARD) {
+                this.get_window().get_device_position(device, out mx, out my, out mask);
+            }
+        }
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Sets the absolute position of the mouse pointer.
+    /////////////////////////////////////////////////////////////////////
+
+    private void set_mouse_position(int mx, int my) {
+        var display = Gdk.Display.get_default();
+        var manager = display.get_device_manager();
+        GLib.List<weak Gdk.Device?> list = manager.list_devices(Gdk.DeviceType.MASTER);
+        foreach(var device in list) {
+            if (device.input_source != Gdk.InputSource.KEYBOARD) {
+                device.warp(Gdk.Screen.get_default(), mx, my);
+            }
+        }
     }
 
     /////////////////////////////////////////////////////////////////////
@@ -213,35 +334,34 @@ public class PieWindow : Gtk.Window {
             ctx.paint();
             ctx.set_operator (Cairo.Operator.OVER);
         } else {
+            //correct the background position if the window was moved
+            //since the background image was captured
+            int x, y;
+            this.get_position(out x, out y);
+            int dx = this.back_x - x;
+            int dy = this.back_y - y;
+            ctx.save();
+            ctx.translate(dx, dy);
             ctx.set_operator (Cairo.Operator.OVER);
             ctx.set_source_surface(background.surface, -1, -1);
             ctx.paint();
+            ctx.restore();
         }
 
         // align the context to the center of the PieWindow
-        ctx.translate(this.width_request*0.5, this.height_request*0.5);
+        ctx.translate(this.renderer.center_x, this.renderer.center_y);
 
         // get the mouse position
-        double mouse_x = 0.0, mouse_y = 0.0;
-        Gdk.ModifierType mask;
-
-        var display = Gdk.Display.get_default();
-        var manager = display.get_device_manager();
-        GLib.List<weak Gdk.Device?> list = manager.list_devices(Gdk.DeviceType.MASTER);
-
-        foreach(var device in list) {
-            if (device.input_source != Gdk.InputSource.KEYBOARD) {
-                this.get_window().get_device_position_double(device, out mouse_x, out mouse_y, out mask);
-            }
-        }
+        int mouse_x, mouse_y;
+        get_mouse_position( out mouse_x, out mouse_y );
 
         // store the frame time
         double frame_time = this.timer.elapsed();
         this.timer.reset();
 
         // render the Pie
-        this.renderer.draw(frame_time, ctx, (int)(mouse_x - this.width_request*0.5),
-                                            (int)(mouse_y - this.height_request*0.5));
+        this.renderer.draw(frame_time, ctx, mouse_x - (int)this.renderer.center_x,
+                                            mouse_y - (int)this.renderer.center_y);
 
         return true;
     }
@@ -309,11 +429,15 @@ public class PieWindow : Gtk.Window {
     private void handle_key_press(uint key) {
         if      (Gdk.keyval_name(key) == "Escape") this.cancel();
         else if (Gdk.keyval_name(key) == "Return") this.activate_slice();
-        else if (!this.renderer.turbo_mode) {
+        else if (!PieManager.get_is_turbo(this.renderer.id)) {
             if (Gdk.keyval_name(key) == "Up") this.renderer.select_up();
             else if (Gdk.keyval_name(key) == "Down") this.renderer.select_down();
             else if (Gdk.keyval_name(key) == "Left") this.renderer.select_left();
             else if (Gdk.keyval_name(key) == "Right") this.renderer.select_right();
+            else if (Gdk.keyval_name(key) == "Page_Down") this.renderer.select_nextpage();
+            else if (Gdk.keyval_name(key) == "Page_Up") this.renderer.select_prevpage();
+            else if (Gdk.keyval_name(key) == "Tab") this.renderer.select_nextpage();
+            else if (Gdk.keyval_name(key) == "ISO_Left_Tab") this.renderer.select_prevpage();
             else if (Gdk.keyval_name(key) == "Alt_L") this.renderer.show_hotkeys = true;
             else {
                 int index = -1;
@@ -342,7 +466,7 @@ public class PieWindow : Gtk.Window {
     /////////////////////////////////////////////////////////////////////
 
     private void handle_key_release(uint key) {
-        if (!this.renderer.turbo_mode) {
+        if (!PieManager.get_is_turbo(this.renderer.id)) {
             if (Gdk.keyval_name(key) == "Alt_L") this.renderer.show_hotkeys = false;
         }
     }
diff --git a/src/renderers/sliceRenderer.vala b/src/renderers/sliceRenderer.vala
index 2ecf7c4..862e2a5 100644
--- a/src/renderers/sliceRenderer.vala
+++ b/src/renderers/sliceRenderer.vala
@@ -1,19 +1,19 @@
-/*
-Copyright (c) 2011 by Simon Schneegans
-
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the Free
-Software Foundation, either version 3 of the License, or (at your option)
-any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-more details.
-
-You should have received a copy of the GNU General Public License along with
-this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+/////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011-2015 by Simon Schneegans
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/////////////////////////////////////////////////////////////////////////
 
 using GLib.Math;
 
@@ -94,7 +94,14 @@ public class SliceRenderer : GLib.Object {
 
     public SliceRenderer(PieRenderer parent) {
         this.parent = parent;
+        this.reset_anim();
+    }
 
+    /////////////////////////////////////////////////////////////////////
+    /// Put all AnimatedValues in their initial values
+    /////////////////////////////////////////////////////////////////////
+
+    public void reset_anim() {
         this.fade =   new AnimatedValue.linear(0.0, 0.0, Config.global.theme.transition_time);
         this.wobble = new AnimatedValue.linear(0.0, 0.0, Config.global.theme.transition_time);
         this.alpha =  new AnimatedValue.linear(0.0, 1.0, Config.global.theme.fade_in_time);
@@ -147,7 +154,7 @@ public class SliceRenderer : GLib.Object {
     }
 
     /////////////////////////////////////////////////////////////////////
-    /// Activaes the Action of this slice.
+    /// Activates the Action of this slice.
     /////////////////////////////////////////////////////////////////////
 
     public void activate() {
@@ -189,7 +196,7 @@ public class SliceRenderer : GLib.Object {
     /// Draws all layers of the slice.
     /////////////////////////////////////////////////////////////////////
 
-    public void draw(double frame_time, Cairo.Context ctx, double angle, double distance) {
+    public void draw(double frame_time, Cairo.Context ctx, double angle, int slice_track) {
 
         // update the AnimatedValues
         this.scale.update(frame_time);
@@ -199,16 +206,23 @@ public class SliceRenderer : GLib.Object {
         this.fade_rotation.update(frame_time);
         this.wobble.update(frame_time);
 
-	    double direction = 2.0 * PI * position/parent.slice_count() + this.fade_rotation.val;
-	    double max_scale = 1.0/Config.global.theme.max_zoom;
+        double direction = 2.0 * PI * (position-parent.first_slice_idx)/parent.total_slice_count
+                            + parent.first_slice_angle + this.fade_rotation.val;
+        double max_scale = 1.0/Config.global.theme.max_zoom;
         double diff = fabs(angle-direction);
 
-        if (diff > PI)
-	        diff = 2 * PI - diff;
+        if (diff > 2 * PI) {
+            diff = diff - 2 * PI;
+        }
+
+        if (diff > PI) {
+            diff = 2 * PI - diff;
+        }
+
 
-        active = ((parent.active_slice >= 0) && (diff < PI/parent.slice_count()));
+        active = ((parent.active_slice >= 0) && (diff < PI/parent.total_slice_count));
 
-        if (parent.active_slice >= 0) {
+        if (slice_track != 0) {
             double wobble = Config.global.theme.wobble*diff/PI*(1-diff/PI);
             if ((direction < angle && direction > angle - PI) || direction > PI+angle) {
                 this.wobble.reset_target(-wobble, Config.global.theme.transition_time*0.5);
@@ -228,7 +242,7 @@ public class SliceRenderer : GLib.Object {
 
 
 
-        max_scale = (parent.active_slice >= 0 ? max_scale : 1.0/Config.global.theme.max_zoom);
+        max_scale = (slice_track != 0 ? max_scale : 1.0/Config.global.theme.max_zoom);
 
         if (fabs(this.scale.end - max_scale) > Config.global.theme.max_zoom*0.005)
             this.scale.reset_target(max_scale, Config.global.theme.transition_time);
@@ -240,9 +254,9 @@ public class SliceRenderer : GLib.Object {
 
         // increase radius if there are many slices in a pie
         if (atan((Config.global.theme.slice_radius+Config.global.theme.slice_gap)
-          /(radius/Config.global.theme.max_zoom)) > PI/parent.slice_count()) {
+          /(radius/Config.global.theme.max_zoom)) > PI/parent.total_slice_count) {
             radius = (Config.global.theme.slice_radius+Config.global.theme.slice_gap)
-                     /tan(PI/parent.slice_count())*Config.global.theme.max_zoom;
+                     /tan(PI/parent.total_slice_count)*Config.global.theme.max_zoom;
         }
 
         // transform the context