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Added SDL_messagebox wrapper

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Jameson Ernst 2013-07-14 17:40:12 -07:00
parent 964f553e25
commit 92397d8a98
2 changed files with 142 additions and 1 deletions
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2
src/LPUtf8StrMarshaler.cs
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@ -38,7 +38,7 @@ namespace SDL2
_leaveAllocatedInstance = new LPUtf8StrMarshaler(true),
_defaultInstance = new LPUtf8StrMarshaler(false);
private static ICustomMarshaler GetInstance(string cookie)
public static ICustomMarshaler GetInstance(string cookie)
{
switch (cookie)
{

141
src/SDL2.cs
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@ -4390,7 +4390,148 @@ namespace SDL2
#endregion
#region SDL_messagebox.h
[Flags]
public enum SDL_MessageBoxFlags
{
SDL_MESSAGEBOX_ERROR = 0x00000010,
SDL_MESSAGEBOX_WARNING = 0x00000020,
SDL_MESSAGEBOX_INFORMATION = 0x00000040
}
[Flags]
public enum SDL_MessageBoxButtonFlags
{
SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT = 0x00000001,
SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT = 0x00000002
}
[StructLayout(LayoutKind.Sequential)]
internal struct INTERNAL_SDL_MessageBoxButtonData
{
public SDL_MessageBoxButtonFlags flags;
public int buttonid;
public IntPtr text; /* The UTF-8 button text */
}
[StructLayout(LayoutKind.Sequential)]
public struct SDL_MessageBoxButtonData
{
public SDL_MessageBoxButtonFlags flags;
public int buttonid;
public string text; /* The UTF-8 button text */
}
[StructLayout(LayoutKind.Sequential)]
public struct SDL_MessageBoxColor
{
public byte r, g, b;
}
public enum SDL_MessageBoxColorType
{
SDL_MESSAGEBOX_COLOR_BACKGROUND,
SDL_MESSAGEBOX_COLOR_TEXT,
SDL_MESSAGEBOX_COLOR_BUTTON_BORDER,
SDL_MESSAGEBOX_COLOR_BUTTON_BACKGROUND,
SDL_MESSAGEBOX_COLOR_BUTTON_SELECTED,
SDL_MESSAGEBOX_COLOR_MAX
}
[StructLayout(LayoutKind.Sequential)]
public struct SDL_MessageBoxColorScheme
{
[MarshalAs(UnmanagedType.ByValArray, ArraySubType = UnmanagedType.Struct, SizeConst = (int)SDL_MessageBoxColorType.SDL_MESSAGEBOX_COLOR_MAX)]
public SDL_MessageBoxColor[] colors;
}
[StructLayout(LayoutKind.Sequential)]
internal struct INTERNAL_SDL_MessageBoxData
{
public SDL_MessageBoxFlags flags;
public IntPtr window; /* Parent window, can be NULL */
public IntPtr title; /* UTF-8 title */
public IntPtr message; /* UTF-8 message text */
public int numbuttons;
public IntPtr buttons;
public IntPtr colorScheme; /* Can be NULL to use system settings */
}
[StructLayout(LayoutKind.Sequential)]
public struct SDL_MessageBoxData
{
public SDL_MessageBoxFlags flags;
public IntPtr window; /* Parent window, can be NULL */
public string title; /* UTF-8 title */
public string message; /* UTF-8 message text */
public int numbuttons;
public SDL_MessageBoxButtonData[] buttons;
public SDL_MessageBoxColorScheme? colorScheme; /* Can be NULL to use system settings */
}
[DllImport(nativeLibName, EntryPoint = "SDL_ShowMessageBox", CallingConvention = CallingConvention.Cdecl)]
internal static extern int INTERNAL_SDL_ShowMessageBox([In()] ref INTERNAL_SDL_MessageBoxData messageboxdata, out int buttonid);
public static unsafe int SDL_ShowMessageBox([In()] ref SDL_MessageBoxData messageboxdata, out int buttonid)
{
var utf8 = LPUtf8StrMarshaler.GetInstance(null);
var data = new INTERNAL_SDL_MessageBoxData()
{
flags = messageboxdata.flags,
window = messageboxdata.window,
title = utf8.MarshalManagedToNative(messageboxdata.title),
message = utf8.MarshalManagedToNative(messageboxdata.message),
numbuttons = messageboxdata.numbuttons,
};
var buttons = new INTERNAL_SDL_MessageBoxButtonData[messageboxdata.numbuttons];
for (int i = 0; i < messageboxdata.numbuttons; i++)
{
buttons[i] = new INTERNAL_SDL_MessageBoxButtonData()
{
flags = messageboxdata.buttons[i].flags,
buttonid = messageboxdata.buttons[i].buttonid,
text = utf8.MarshalManagedToNative(messageboxdata.buttons[i].text),
};
}
if (messageboxdata.colorScheme != null)
{
data.colorScheme = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(SDL_MessageBoxColorScheme)));
Marshal.StructureToPtr(messageboxdata.colorScheme.Value, data.colorScheme, false);
}
int result;
fixed (INTERNAL_SDL_MessageBoxButtonData* buttonsPtr = &buttons[0])
{
data.buttons = (IntPtr)buttonsPtr;
result = INTERNAL_SDL_ShowMessageBox(ref data, out buttonid);
}
Marshal.FreeHGlobal(data.colorScheme);
for (int i = 0; i < messageboxdata.numbuttons; i++)
{
utf8.CleanUpNativeData(buttons[i].text);
}
utf8.CleanUpNativeData(data.message);
utf8.CleanUpNativeData(data.title);
return result;
}
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern int SDL_ShowSimpleMessageBox(
SDL_MessageBoxFlags flags,
[In()] [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(LPUtf8StrMarshaler))]
string title,
[In()] [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(LPUtf8StrMarshaler))]
string message,
IntPtr window
);
#endregion
}
}