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LibVT+Kernel: Add support for setting cursor styles

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This commit introduces support for 3 new escape sequences:
1. Stop blinking cursor mode
2. `DECTCEM` mode (enable/disable cursor)
3. `DECSCUSR` (set cursor style)

`TerminalWidget` now supports the following cursor types: block,
underline and vertical bar. Each of these can blink or be steady.
`VirtualConsole` ignores these (just as we were doing before).
This commit is contained in:
Daniel Bertalan 2021-05-24 09:36:41 +02:00 • committed by Andreas Kling
parent 7dfc804d7d
commit 875a2cbb71
6 changed files with 162 additions and 14 deletions
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17
Userland/Libraries/LibVT/Terminal.h
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@ -26,6 +26,16 @@ class VirtualConsole;
namespace VT {
enum CursorStyle {
None,
BlinkingBlock,
SteadyBlock,
BlinkingUnderline,
SteadyUnderline,
BlinkingBar,
SteadyBar
};
class TerminalClient {
public:
virtual ~TerminalClient() { }
@ -36,6 +46,7 @@ public:
virtual void terminal_did_resize(u16 columns, u16 rows) = 0;
virtual void terminal_history_changed() = 0;
virtual void emit(const u8*, size_t) = 0;
virtual void set_cursor_style(CursorStyle) = 0;
};
class Terminal : public EscapeSequenceExecutor {
@ -238,6 +249,9 @@ protected:
// DSR - Device Status Reports
void DSR(Parameters);
// DECSCUSR - Set Cursor Style
void DECSCUSR(Parameters);
#ifndef KERNEL
// ICH - Insert Character
void ICH(Parameters);
@ -319,6 +333,9 @@ protected:
bool m_swallow_current { false };
bool m_stomp { false };
CursorStyle m_cursor_style { BlinkingBlock };
CursorStyle m_saved_cursor_style { BlinkingBlock };
Attribute m_current_attribute;
Attribute m_saved_attribute;