//CONSTRUCTOR
public OldAllocationStrategies(List <int> l, String s)
{
ToolbarItem info = new ToolbarItem();
info.Text = App._sHelpInfoHint;
this.ToolbarItems.Add(info);
info.Clicked += B_Info_Clicked;
fragmentList = l;
strategy = s;
memoryRequestState = MyEnum.noRequestYet;
Title = "Allocation Strategies: " + strategy;
isContentCreated = false;
if (Application.Current.MainPage.Width > Application.Current.MainPage.Height)
{
this.isContentCreated = true;
CreateContent();
this.Content.IsVisible = true;
}
else
{
CreateContent();
this.isContentCreated = true;
this.Content.IsVisible = false;
}
//EVENT LISTENER
//subscribe to Message in order to know if a new memory request was made
MessagingCenter.Subscribe <OldAllocationStrategiesModal>(this, "new memory request", (args) => {
l_Size.Text = memoryRequest.ToString();
l_Diff.Text = diff;
l_Free.Text = free;
if (OldAllocationStrategiesScene.CheckIfFull())
{
memoryRequestState = MyEnum.memoryFull;
}
else
{
memoryRequestState = MyEnum.newRequest;
}
});
}
/**********************************************************************
*********************************************************************/
//sets up the scene
void HandleViewCreated(object sender, EventArgs e)
{
OldAllocationStrategiesScene gameScene;
var gameView = sender as CCGameView;
if (gameView != null)
{
// This sets the game "world" resolution to 330x100:
//Attention: all drawn elements in the scene strongly depend ont he resolution! Better don't change it
gameView.DesignResolution = new CCSizeI(gameviewWidth, gameviewHeight);
// GameScene is the root of the CocosSharp rendering hierarchy:
gameScene = new OldAllocationStrategiesScene(gameView);
// Starts CocosSharp:
gameView.RunWithScene(gameScene);
}
}
/**********************************************************************
*********************************************************************/
async void B_Next_Clicked(object sender, EventArgs e)
{
switch (memoryRequestState)
{
case MyEnum.newRequest: //new request
memoryRequestState = MyEnum.searchingForBlock;
OldAllocationStrategiesScene.RequestNew(memoryRequest);
break;
case MyEnum.searchingForBlock: //searching for block
switch (strategy)
{
case "First Fit":
OldAllocationStrategiesScene.pos++;
OldAllocationStrategiesScene.FirstFit(memoryRequest);
break;
case "Next Fit":
OldAllocationStrategiesScene.pos++;
OldAllocationStrategiesScene.NextFit(memoryRequest);
break;
case "Best Fit":
OldAllocationStrategiesScene.pos++;
OldAllocationStrategiesScene.BestFit(memoryRequest);
break;
case "Worst Fit":
OldAllocationStrategiesScene.pos++;
OldAllocationStrategiesScene.WorstFit(memoryRequest);
break;
case "Tailoring Best Fit":
OldAllocationStrategiesScene.pos++;
OldAllocationStrategiesScene.TailoringBestFit(memoryRequest);
break;
case "Combined Fit":
OldAllocationStrategiesScene.pos++;
// Debug.WriteLine("next clicked pos = " + OldAllocationStrategiesScene.pos);
OldAllocationStrategiesScene.CombinedFit(memoryRequest);
break;
}
break;
case MyEnum.successfull: //successfull
OldAllocationStrategiesScene.ClearRedArrow();
OldAllocationStrategiesScene.ClearGrayArrow();
OldAllocationStrategiesScene.DrawFill();
memoryRequestState = MyEnum.noRequestYet;
b_Restart.IsEnabled = true;
//clear information bar
l_Size.Text = size;
l_Diff.Text = diff;
l_Best.Text = best;
l_Free.Text = free;
break;
case MyEnum.unsuccessfull: //unsucessfull
OldAllocationStrategiesScene.ClearGrayArrow();
OldAllocationStrategiesScene.ClearRedArrow();
await DisplayAlert("Alert", "No free space has been found", "OK");
memoryRequestState = MyEnum.noRequestYet; //ready for a new request
//clear information bar
l_Size.Text = size;
l_Diff.Text = diff;
l_Best.Text = best;
l_Free.Text = free;
break;
case MyEnum.noRequestYet: //no requst yet
if (OldAllocationStrategiesScene.CheckIfFull())
{
memoryRequestState = MyEnum.memoryFull;
await DisplayAlert("Alert", "Out of memory! The app will close now", "OK");
await Navigation.PopAsync();
break;
}
else
{
await Navigation.PushModalAsync(new OldAllocationStrategiesModal(), true);
break;
}
case MyEnum.memoryFull: //memory is full
await DisplayAlert("Alert", "Out of memory! The app will close now", "OK");
await Navigation.PopAsync();
break;
}
}
