private static Block readNextBlock(Stream file)
{
Block bl = new Block();
byte[] countbytes = new byte[4];
ReadWholeArray(file, countbytes);
int count = BitConverter.ToInt32(countbytes, 0);
if (count < 3)
{
throw new Exception("Invalid block data length: must be > 2");
}
byte[] typebytes = new byte[2], data = new byte[count - 2];
ReadWholeArray(file, typebytes);
ReadWholeArray(file, data);
bl.type = BitConverter.ToUInt16(typebytes, 0);
bl.data = data;
return bl;
}
public static void loadProjectFile(string path)
{
//1. discard first 12 bytes
//2. get layer info
//3. read in keyframes
//Clear everything in the timeline (prompts to come later)
Timeline.resetEverything(true);
Canvas zeCanvas = Program.CanvasForm;
FileStream file;
try
{
file = File.Open(path, FileMode.Open);
}
catch
{
throw new Exception("Failed to load project file. Reason: Unable to open file.");
}
file.Position += 12;
long length = file.Length;
List<Layer> layers = new List<Layer>();
Block layer = new Block();
layer.type = ushort.MaxValue;
try
{
while (layer.type != 6 && layer.type != 0)
layer = readNextBlock(file);
if (layer.type == 6)
{
try
{
ushort width = BitConverter.ToUInt16(layer.data, 0);
ushort height = BitConverter.ToUInt16(layer.data, 2);
Color canColor = Color.FromArgb(layer.data[4], layer.data[5], layer.data[6]);
zeCanvas.Size = new Size(width, height);
zeCanvas.setBackgroundColor(canColor);
}
catch
{
//Do nothing. The parser should attempt to load the rest of the file even if the preferences aren't valid.
}
}
}
catch
{
throw new Exception("Failed to load project file. Reason: No Layer or Preferences block found.");
}
while (file.Position + 1 < length)
{
try
{
layer = readNextBlock(file);
}
catch
{
throw new Exception("Failed to load project file. Reason: Unable to read from file.");
}
if (layer.type != 0) //If it isn't the actual layer type, then skip.
continue;
byte layerType = layer.data[0];
int nameLength = layer.data[1] + 1;
string name = Encoding.UTF8.GetString(layer.data, 2, nameLength);
Layer newLayer;
Block otherTmpBlock = new Block();
if (layerType == 1)
newLayer = new StickLayer(name, new StickFigure(false), zeCanvas);
else if (layerType == 2)
newLayer = new LineLayer(name, new StickLine(false), zeCanvas);
else if (layerType == 3)
newLayer = new RectLayer(name, new StickRect(false), zeCanvas);
else if (layerType == 4)
{
newLayer = new CustomLayer(name, new StickCustom(false), zeCanvas);
otherTmpBlock = readNextBlock(file);
}
else if (layerType == 5)
newLayer = new LightLayer(name, new LightObject(false), zeCanvas);
else if (layerType == 7)
{
otherTmpBlock = readNextBlock(file);
Stream s = new MemoryStream(otherTmpBlock.data);
Bitmap b = (Bitmap)Bitmap.FromStream(s);
newLayer = new ImageLayer(name, new StickImage(b, false), zeCanvas, b);
}
else if (layerType == 10)
{
newLayer = new PolyLayer(name, new StickPoly(false), zeCanvas, 0);
}
else
continue; //Only 1, 2, 3, 4, and 5 have been coded so far, so only load those types.
List<KeyFrame> thingy = new List<KeyFrame>();
for (Block tmpBlk = readNextBlock(file);tmpBlk.type != 1;tmpBlk = readNextBlock(file))
{
if (tmpBlk.type != 2)
continue;
KeyFrame f;
if (layerType == 1)
f = new StickFrame(0);
else if (layerType == 2)
f = new LineFrame(0);
else if (layerType == 3)
f = new RectFrame(0);
else if (layerType == 4)
{
f = new custObjectFrame(0);
StickCustom figure = CustomFigLoader.loadStickFile(otherTmpBlock.data);
//figure.reSortJoints(); //For the love of GOD do not uncomment this!!!
for (int i = 0;i < figure.Joints.Count();i++)
{
if (figure.Joints[i].parent != null)
{
figure.Joints[i].CalcLength(null);
figure.Joints[i].recalcAngleToParent();
}
}
for (int i = 0;i < figure.Joints.Count();i++)
{
if (figure.Joints[i].parent != null)
{
if (!(figure.Joints[i].parent.children.IndexOf(figure.Joints[i]) >= 0))
figure.Joints[i].parent.children.Add(figure.Joints[i]);
}
figure.Joints[i].ParentFigure = figure;
}
for (int i = 0;i < figure.Joints.Count;i++)
{
foreach (StickJoint sj in figure.Joints[i].children)
{
sj.parent = figure.Joints[i];
}
}
f.Joints = figure.Joints;
newLayer.tweenFig = new StickCustom(true);
newLayer.tweenFig.Joints = custObjectFrame.createClone(f.Joints);
}
else if (layerType == 5)
f = new LightFrame(0);
else if (layerType == 7)
{
Stream s = new MemoryStream(otherTmpBlock.data);
Bitmap b = (Bitmap)Bitmap.FromStream(s);
f = new ImageFrame(0, b);
} //TODO: Implement poly saving
//else if (layerType == 10)
//{
//}
else
continue; //Nothing past layer type 5 has even begun implementation, so if we encounter any just skip.
int kPos = BitConverter.ToInt32(tmpBlk.data, 0);
f.pos = kPos;
//Read the next block, which contains the other properties of the keyframe, like the colour of the joints.
Block propBlock = readNextBlock(file);
try
{
//We can also just skip the keyframe properties totally in case we're loading an older file format.
while (propBlock.type != 4 && propBlock.type != 5)
propBlock = readNextBlock(file);
}
catch
{
throw new Exception("Loading failed. Reason: Unable to load keyframe properties.");
}
Block posblk = propBlock;
Color figColor = Color.Black;
int thickness = 0;
if (propBlock.type == 4)
{
//Obtain the colour that's stored in the properties block
if (layerType != 4)
figColor = Color.FromArgb(propBlock.data[1], propBlock.data[2], propBlock.data[3], propBlock.data[4]);
if (layerType == 3)
{
((RectFrame)f).figColor = figColor;
((RectFrame)f).filled = BitConverter.ToBoolean(propBlock.data, 4);
Color outlineColor = Color.FromArgb(propBlock.data[5], propBlock.data[6], propBlock.data[7], propBlock.data[8]);
foreach (StickJoint j in f.Joints)
j.color = outlineColor;
}
//Obtain the joints positions block
posblk = readNextBlock(file); //Oh readNextBlock method, how you make my life simpler so
}
int jointcount = BitConverter.ToUInt16(posblk.data, 0);
try
{
for (int a = 0;a < jointcount;a++)
{
int x = 8 * a + 2;
if (layerType != 4 && layerType != 3)
f.Joints[a].color = figColor;
f.Joints[a].location = new Point(BitConverter.ToInt16(posblk.data, x), BitConverter.ToInt16(posblk.data, x + 2));
f.Joints[a].thickness = BitConverter.ToInt16(posblk.data, x + 4);
f.Joints[a].length = BitConverter.ToInt16(posblk.data, x + 6);
}
f.figColor = figColor;
}
catch
{
//Do nothing. The loader should try to continue loading if it encounters any sort of error here.
}
foreach (StickJoint x in f.Joints)
x.ParentFigure = newLayer.fig;
if (layerType == 3)
((StickRect)newLayer.fig).filled = ((RectFrame)f).filled;
thingy.Add(f);
}
newLayer.keyFrames = thingy;
newLayer.firstKF = newLayer.keyFrames[0].pos;
newLayer.lastKF = newLayer.keyFrames[newLayer.keyFrames.Count - 1].pos;
layers.Add(newLayer);
}
Timeline.layers = layers;
Timeline.layer_cnt = layers.Count;
Program.MainformForm.doneLoading();
file.Close();
}
