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Kernel+ProcessManager: Let processes have an icon and show it in the table.

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Processes can now have an icon assigned, which is essentially a 16x16 RGBA32
bitmap exposed as a shared buffer ID.

You set the icon ID by calling set_process_icon(int) and the icon ID will be
exposed through /proc/all.

To make this work, I added a mechanism for making shared buffers globally
accessible. For safety reasons, each app seals the icon buffer before making
it global.

Right now the first call to GWindow::set_icon() is what determines the
process icon. We'll probably change this in the future. :^)
This commit is contained in:
Andreas Kling 2019-07-29 07:26:01 +02:00
parent 7356fd389f
commit 5ded77df39
14 changed files with 97 additions and 2 deletions
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10
Libraries/LibGUI/GWindow.cpp
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@ -635,6 +635,16 @@ void GWindow::set_icon(const GraphicsBitmap* icon)
painter.blit({ 0, 0 }, *icon, icon->rect());
}
int rc = seal_shared_buffer(m_icon->shared_buffer_id());
ASSERT(rc == 0);
rc = share_buffer_globally(m_icon->shared_buffer_id());
ASSERT(rc == 0);
static bool has_set_process_icon;
if (!has_set_process_icon)
set_process_icon(m_icon->shared_buffer_id());
WSAPI_ClientMessage message;
message.type = WSAPI_ClientMessage::Type::SetWindowIconBitmap;
message.window_id = m_window_id;