private static void EnableDisableComposers(ICollection <Type> types)
{
var enabled = new Dictionary <Type, EnableInfo>();
// process the enable/disable attributes
// these two attributes are *not* inherited and apply to *classes* only (not interfaces).
// remote declarations (when a composer enables/disables *another* composer)
// have priority over local declarations (when a composer disables itself) so that
// ppl can enable composers that, by default, are disabled.
// what happens in case of conflicting remote declarations is unspecified. more
// precisely, the last declaration to be processed wins, but the order of the
// declarations depends on the type finder and is unspecified.
foreach (var composerType in types)
{
foreach (var attr in composerType.GetCustomAttributes <EnableAttribute>())
{
var type = attr.EnabledType ?? composerType;
if (enabled.TryGetValue(type, out var enableInfo) == false)
{
enableInfo = enabled[type] = new EnableInfo();
}
var weight = type == composerType ? 1 : 2;
if (enableInfo.Weight > weight)
{
continue;
}
enableInfo.Enabled = true;
enableInfo.Weight = weight;
}
foreach (var attr in composerType.GetCustomAttributes <DisableAttribute>())
{
var type = attr.DisabledType ?? composerType;
if (enabled.TryGetValue(type, out var enableInfo) == false)
{
enableInfo = enabled[type] = new EnableInfo();
}
var weight = type == composerType ? 1 : 2;
if (enableInfo.Weight > weight)
{
continue;
}
enableInfo.Enabled = false;
enableInfo.Weight = weight;
}
}
// remove composers that end up being disabled
foreach (var kvp in enabled.Where(x => x.Value.Enabled == false))
{
types.Remove(kvp.Key);
}
}
private void draw_enabled(TaskVarOp t, Graphics g, int col, int row, Point pt)
{
//int exec = focus + 1;
//int thread = col + 1;
EnableInfo info = EnableInfo.Error;
lock (t.entry)
{
info = t.entry.enableinfo[col];
}
int left = pt.X + col * col_sz;
int top = pt.Y + 1 + row * row_sz;
int right = left + col_sz;
int bottom = top + row_sz - 1;
int mid = bottom - (bottom - top) / 4;
if (info == EnableInfo.Disabled)
{
g.FillRectangle(new SolidBrush(disabledcolor),
left, top, right - left, bottom - top);
}
else if (info == EnableInfo.Enabled)
{
g.FillRectangle(new SolidBrush(enabledcolor),
left, top, right - left, bottom - top);
}
else if (info == EnableInfo.Enable)
{
// ALT 1 : smooth
//Brush b = new LinearGradientBrush(new Point(left, top), new Point(left, bottom),
// disabledcolor, enabledcolor);
//g.FillRectangle(b,
// left, top, right-left, bottom-top);
// ALT2 : triangles
//g.FillPolygon(disabledbrush, new Point[] {
// new Point(left, top), new Point (right, top), new Point(left, bottom)
//});
//g.FillPolygon(enabledbrush, new Point[] {
// new Point(left, bottom), new Point (right, top), new Point(right, bottom)
//});
// ALT3 : middle
g.FillRectangle(new SolidBrush(disabledcolor),
left, top, right - left, mid - top);
g.FillRectangle(Brushes.DarkGray,
left, mid, right - left, bottom - mid);
}
else if (info == EnableInfo.Disable)
{
g.FillRectangle(new SolidBrush(enabledcolor),
left, top, right - left, mid - top);
g.FillRectangle(Brushes.DarkGray,
left, mid, right - left, bottom - mid);
}
else if (info == EnableInfo.Error)
{
g.FillRectangle(Brushes.Crimson,
left, top, right - left, bottom - top);
}
}