/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Share the image with another sprite
/// </summary>
///
/// <param name="spriteToCopy">The original sprite</param>
/// <param name="newSprite">The sprite that will get the same image as the sprite that is being copied</param>
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
public bool CopyTexture(Impl.Sprite spriteToCopy, Impl.Sprite newSprite)
{
// Ignore null pointers
if (spriteToCopy.texture == null)
{
newSprite.texture = null;
return(true);
}
// Loop all our textures to check if we already have this one
foreach (var pair in m_ImageMap)
{
ImageMapData data = pair.Value;
foreach (Impl.Texture texture in data.data)
{
// Check if the pointer points to our texture
if (texture == spriteToCopy.texture)
{
// The texture is now used at multiple places
++(texture.users);
newSprite.texture = spriteToCopy.texture;
newSprite.sprite = new Sprite(spriteToCopy.sprite);
return(true);
}
}
}
Internal.Output("TGUI warning: Can't copy texture that wasn't loaded by TextureManager.");
return(false);
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Removes the sprite
/// </summary>
///
/// <param name="sprite">The sprite that should be removed</param>
///
/// When no other sprite is using the same image then the image will be removed from memory.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
public void RemoveTexture(Impl.Sprite sprite)
{
// Ignore already removed sprites
if (sprite.texture == null)
{
return;
}
// Loop all our textures to check which one it is
foreach (var pair in m_ImageMap)
{
ImageMapData data = pair.Value;
foreach (Impl.Texture texture in data.data)
{
// Check if the pointer points to our texture
if (texture == sprite.texture)
{
// If this was the only place where the texture is used then delete it
if (--(texture.users) == 0)
{
int usage = 0;
foreach (Impl.Texture t in data.data)
{
if (t.image == data.image)
{
usage++;
}
}
// Remove the texture from the list, or even the whole image if it isn't used anywhere else
if (usage == 1)
{
m_ImageMap.Remove(pair.Key);
}
else
{
data.data.Remove(texture);
}
}
// The pointer is now useless
sprite.texture = null;
return;
}
}
}
// Internal.Output("TGUI warning: Can't remove texture that wasn't loaded by TextureManager.");
return;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Loads a texture
/// </summary>
///
/// <param name="filename">Filename of the image to load</param>
/// <param name="sprite">The sprite object to store the loaded image</param>
/// <param name="rect">Load only this part of the image.</param>
///
/// The second time you call this function with the same filename, the previously loaded image will be reused.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
public void GetTexture(string filename, Impl.Sprite sprite, SFML.Graphics.IntRect rect = new SFML.Graphics.IntRect())
{
// Look if we already had this image
ImageMapData data;
if (m_ImageMap.TryGetValue(filename, out data))
{
// Loop all our textures to find the one containing the image
foreach (Impl.Texture tex in data.data)
{
// Only reuse the texture when the exact same part of the image is used
if ((tex.rect.Left == rect.Left) && (tex.rect.Top == rect.Top)
&& (tex.rect.Width == rect.Width) && (tex.rect.Height == rect.Height))
{
// The texture is now used at multiple places
++(tex.users);
// We already have the texture, so pass the data
sprite.texture = tex;
// Set the texture in the sprite
sprite.sprite.Texture = tex.texture;
return;
}
}
}
else // The image doesn't exist yet
{
data = new ImageMapData ();
data.data = new List<Impl.Texture> ();
m_ImageMap.Add (filename, data);
}
// Add new data to the list
Impl.Texture texture = new Impl.Texture();
sprite.texture = texture;
sprite.texture.image = data.image;
sprite.texture.rect = rect;
data.data.Add(texture);
// Load the image
if (Global.ResourceManager == null)
{
sprite.texture.image = new SFML.Graphics.Image (filename);
}
else
{
if (Global.ResourceManager.GetObject(filename) is byte[])
{
byte[] raw = Global.ResourceManager.GetObject(filename) as byte[];
MemoryStream mem = new MemoryStream(raw);
sprite.texture.image = new SFML.Graphics.Image(mem);
}
else if (Global.ResourceManager.GetObject(filename) is System.Drawing.Image)
{
System.Drawing.Image raw = Global.ResourceManager.GetObject(filename) as System.Drawing.Image;
MemoryStream mem = new MemoryStream();
// Copy the image to the Stream
raw.Save(mem, raw.RawFormat);
// Copy stream into new memory stream - prevents an AccessViolationException
mem = new MemoryStream(mem.ToArray());
sprite.texture.image = new SFML.Graphics.Image(mem);
}
}
// Create a texture from the image
if ((rect.Left == 0) && (rect.Top == 0) && (rect.Width == 0) && (rect.Height == 0))
sprite.texture.texture = new SFML.Graphics.Texture (sprite.texture.image);
else
sprite.texture.texture = new SFML.Graphics.Texture (sprite.texture.image, rect);
// Set the texture in the sprite
sprite.sprite.Texture = sprite.texture.texture;
// Set the other members of the data
sprite.texture.filename = filename;
sprite.texture.users = 1;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Loads a texture
/// </summary>
///
/// <param name="filename">Filename of the image to load</param>
/// <param name="sprite">The sprite object to store the loaded image</param>
/// <param name="rect">Load only this part of the image.</param>
///
/// The second time you call this function with the same filename, the previously loaded image will be reused.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
public void GetTexture(string filename, Impl.Sprite sprite, SFML.Graphics.IntRect rect = new SFML.Graphics.IntRect())
{
// Look if we already had this image
ImageMapData data;
if (m_ImageMap.TryGetValue(filename, out data))
{
// Loop all our textures to find the one containing the image
foreach (Impl.Texture tex in data.data)
{
// Only reuse the texture when the exact same part of the image is used
if ((tex.rect.Left == rect.Left) && (tex.rect.Top == rect.Top) &&
(tex.rect.Width == rect.Width) && (tex.rect.Height == rect.Height))
{
// The texture is now used at multiple places
++(tex.users);
// We already have the texture, so pass the data
sprite.texture = tex;
// Set the texture in the sprite
sprite.sprite.Texture = tex.texture;
return;
}
}
}
else // The image doesn't exist yet
{
data = new ImageMapData();
data.data = new List <Impl.Texture> ();
m_ImageMap.Add(filename, data);
}
// Add new data to the list
Impl.Texture texture = new Impl.Texture();
sprite.texture = texture;
sprite.texture.image = data.image;
sprite.texture.rect = rect;
data.data.Add(texture);
// Load the image
if (Global.ResourceManager == null)
{
sprite.texture.image = new SFML.Graphics.Image(filename);
}
else
{
if (Global.ResourceManager.GetObject(filename) is byte[])
{
byte[] raw = Global.ResourceManager.GetObject(filename) as byte[];
MemoryStream mem = new MemoryStream(raw);
sprite.texture.image = new SFML.Graphics.Image(mem);
}
else if (Global.ResourceManager.GetObject(filename) is System.Drawing.Image)
{
System.Drawing.Image raw = Global.ResourceManager.GetObject(filename) as System.Drawing.Image;
MemoryStream mem = new MemoryStream();
// Copy the image to the Stream
raw.Save(mem, raw.RawFormat);
// Copy stream into new memory stream - prevents an AccessViolationException
mem = new MemoryStream(mem.ToArray());
sprite.texture.image = new SFML.Graphics.Image(mem);
}
}
// Create a texture from the image
if ((rect.Left == 0) && (rect.Top == 0) && (rect.Width == 0) && (rect.Height == 0))
{
sprite.texture.texture = new SFML.Graphics.Texture(sprite.texture.image);
}
else
{
sprite.texture.texture = new SFML.Graphics.Texture(sprite.texture.image, rect);
}
// Set the texture in the sprite
sprite.sprite.Texture = sprite.texture.texture;
// Set the other members of the data
sprite.texture.filename = filename;
sprite.texture.users = 1;
}
