Implemented FileVT.

1 files changed, 62 insertions, 0 deletions

diff --git a/Source/Kernel/VTManager/FileVT.class.cpp b/Source/Kernel/VTManager/FileVT.class.cpp
new file mode 100644
index 0000000..0acc623
--- /dev/null
+++ b/Source/Kernel/VTManager/FileVT.class.cpp
@@ -0,0 +1,62 @@
+#include "FileVT.class.h"
+
+FileVT::FileVT(String filename, u8int mode, FSNode *start, u8int encoding) :
+		m_file(filename, mode, start, encoding), m_buffer() {
+	if (mode != FM_READ) {
+		m_isWriting = true;
+		m_bufferPos = 0;
+	} else {
+	   	m_isWriting = false;
+		m_buffer = m_file.readLine();
+	}
+}
+	
+void FileVT::setCursorCol(u32int col) {
+	if (!m_isWriting) return;
+	while (m_buffer.size() < col) {
+		put(" ");
+	}
+}
+
+void FileVT::put(WChar c, bool updatecsr) {
+	if (!m_isWriting) return;
+	if (c.value == '\n') {
+		m_file.write(m_buffer, true);
+		m_buffer.clear();
+	} else if (c.value == '\t') {
+		u32int nc = (m_buffer.size() + 8) &~(8 - 1);
+		while (m_buffer.size() < nc) put(" ");
+	} else {
+		m_buffer += c;
+	}
+}
+
+Kbd::keypress_t FileVT::getKeypress(bool show, bool block) {
+	Kbd::keypress_t ret;
+	if (m_isWriting) return ret;
+
+	if (m_bufferPos == m_buffer.size()) {
+		ret.hascmd = true;
+		ret.command = KBDC_ENTER;
+		if (m_file.eof()) {
+			m_buffer = ".";
+		} else {
+			m_buffer = m_file.readLine();
+		}
+		m_bufferPos = 0;
+	} else {
+		WChar c = m_buffer[m_bufferPos];
+		m_bufferPos++;
+		if (c.value == '\t') {
+			ret.hascmd = true;
+			ret.command = KBDC_TAB;
+		} else if (c.value == '\b') {
+			ret.hascmd = true;
+			ret.command = KBDC_BACKSPACE;
+		} else {
+			ret.haschar = true;
+			ret.character = c;
+		}
+	}	
+	return ret;
+}