/**
* 卸载ram,如果并没有安装过ram,则什么也不会发生
* @param type 需要卸载的内存类型
*/
public void uninstall(int type)
{
Ram.Ram ram = null;
switch (type)
{
case RamConst.RAM_RUNTIME_TYPE:
ram = runRam;
runRam = null;
break;
case RamConst.RAM_GRAPH_TYPE:
ram = graphRam;
graphRam = null;
break;
case RamConst.RAM_BUFFER_TYPE:
ram = bufferRam;
bufferRam = null;
break;
case RamConst.RAM_STRING_TYPE:
ram = strRam;
strRam = null;
break;
case RamConst.RAM_TEXT_TYPE:
ram = textRam;
textRam = null;
break;
}
if (ram != null)
{
resetRamAddress();
}
}
public ScreenModelImp()
{
graphData = new sbyte[BUFFER_SIZE];
bufferData = new sbyte[BUFFER_SIZE];
graphRam = new ScreenRam(this, graphData, RamConst.RAM_GRAPH_TYPE);
bufferRam = new ScreenRam(this, bufferData, RamConst.RAM_BUFFER_TYPE);
}
/**
* 往里面添加内存模块,每种类型的内存最多只能安装一个.<p>
* ram为null不会抛出异常,且不会改变RamManager的任何状态
* @param ram 需要安装的内存
* @throws IllegalStateException 已经安装了这种类型的内存
* @see #uninstall
*/
public void install(Ram.Ram ram)
{
if (ram == null)
{
return;
}
switch (ram.getRamType())
{
case RamConst.RAM_RUNTIME_TYPE:
if (runRam != null)
{
//throw new IllegalStateException("Runtime Ram was installed!");
}
runRam = (RuntimeRam)ram;
break;
case RamConst.RAM_GRAPH_TYPE:
if (graphRam != null)
{
//throw new IllegalStateException("Graph Ram was installed!");
}
graphRam = (RelativeRam)ram;
screen = graphRam.getScreenModel();
break;
case RamConst.RAM_BUFFER_TYPE:
if (bufferRam != null)
{
//throw new IllegalStateException("Buffer Ram was installed!");
}
bufferRam = (RelativeRam)ram;
break;
case RamConst.RAM_STRING_TYPE:
if (strRam != null)
{
//throw new IllegalStateException("String Ram was installed!");
}
strRam = (StringRam)ram;
break;
case RamConst.RAM_TEXT_TYPE:
if (textRam != null)
{
//throw new IllegalStateException("Text Ram was installed!");
}
textRam = (RelativeRam)ram;
break;
}
resetRamAddress();
}
/// <summary>
/// 设置用于显示的ScreenModel,并作适当的初始化
/// </summary>
/// <param name="screen"></param>
public void setScreenModel(ScreenModel screen)
{
if (screen == null)
{
//throw new IllegalArgumentException("Screen must't be null!");
}
if (this.screen != screen)
{
this.screen = screen;
this.buffer = new sbyte[(screen.getWidth() / 6) * (screen.getHeight() / 13)];
this.getter = new ByteArrayGetter(buffer);
this.ram = new ByteArrayRam(buffer, screen);
this.render = screen.getRender();
}
else
{
ram.Clear();
}
this.curCol = this.curRow = 0;
this.isBigMode = true;
this.maxCol = screen.getWidth() / 8;
this.maxRow = screen.getHeight() / 16;
}
