diff options
| author | Jean-Philippe Bruyère <jp_bruyere@hotmail.com> | 2021-11-23 02:23:24 +0100 |
|---|---|---|
| committer | Jean-Philippe Bruyère <jp_bruyere@hotmail.com> | 2021-11-23 02:23:24 +0100 |
| commit | d396c47e492aa7badcfefba41c36c516558fb1ec (patch) | |
| tree | b8a6b6f68313aa9ac9bf7bb10c1004df7489e633 /Backends/CairoBackend/src/Device.cs | |
| parent | dbb9034d864fc42f92a66b08a0734edc3dc73e8c (diff) | |
save commit, Drawing2D shared lib
Diffstat (limited to 'Backends/CairoBackend/src/Device.cs')
| -rw-r--r-- | Backends/CairoBackend/src/Device.cs | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/Backends/CairoBackend/src/Device.cs b/Backends/CairoBackend/src/Device.cs new file mode 100644 index 00000000..426d4ca2 --- /dev/null +++ b/Backends/CairoBackend/src/Device.cs @@ -0,0 +1,101 @@ +// +// Mono.Cairo.Device.cs +// +// Authors: +// JP Bruyère (jp_bruyere@hotmail.com) +// +// This is an OO wrapper API for the Cairo API +// +// Copyright (C) 2016 JP Bruyère +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// +using System; + +namespace Crow.Drawing +{ + public class Device : IDisposable + { + IntPtr handle = IntPtr.Zero; + + protected Device() + { + } + + protected Device (IntPtr ptr) : this (ptr, true) + { + } + + protected Device (IntPtr handle, bool owner) + { + this.handle = handle; + if (!owner) + NativeMethods.cairo_device_reference (handle); + if (CairoDebug.Enabled) + CairoDebug.OnAllocated (handle); + } + + ~Device () + { + Dispose (false); + } + + public IntPtr Handle { + get { + return handle; + } + } + public string Status { + get { + return System.Runtime.InteropServices.Marshal.PtrToStringAuto(NativeMethods.cairo_status_to_string (NativeMethods.cairo_device_status (handle))); + } + } + public void SetThreadAware (bool value){ + NativeMethods.cairo_gl_device_set_thread_aware (handle, value ? 1 : 0); + } + public Status Acquire() + { + return NativeMethods.cairo_device_acquire (handle); + } + public void Release() + { + NativeMethods.cairo_device_release (handle); + } + + public void Dispose () + { + Dispose (true); + GC.SuppressFinalize (this); + } + + protected virtual void Dispose (bool disposing) + { + if (!disposing || CairoDebug.Enabled) + CairoDebug.OnDisposed<Device> (handle, disposing); + + if (!disposing || handle == IntPtr.Zero) + return; + + NativeMethods.cairo_device_destroy (handle); + handle = IntPtr.Zero; + } + } +} + |