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Lookup all terminal capabilities on initialisation.

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This commit is contained in:
Adam Murdoch
2012-08-06 15:05:38 +10:00
parent a249a250d3
commit a7518b4766
1 changed files with 48 additions and 29 deletions
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59
src/main/cpp/posix.cpp
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@@ -90,7 +90,15 @@ Java_net_rubygrapefruit_platform_internal_jni_PosixTerminalFunctions_getTerminal
* Terminfo functions * Terminfo functions
*/ */
int current_terminal = -1; #define NORMAL_TEXT 0
#define BRIGHT_TEXT 1
#define FOREGROUND_COLOR 2
#define CURSOR_UP 3
#define CURSOR_DOWN 4
#define CURSOR_LEFT 5
#define CURSOR_RIGHT 6
#define CURSOR_START_LINE 7
#define CLEAR_END_OF_LINE 8
#ifdef SOLARIS #ifdef SOLARIS
#define TERMINAL_CHAR_TYPE char #define TERMINAL_CHAR_TYPE char
@@ -98,36 +106,37 @@ int current_terminal = -1;
#define TERMINAL_CHAR_TYPE int #define TERMINAL_CHAR_TYPE int
#endif #endif
int current_terminal = -1;
const char* terminal_capabilities[9];
int write_to_terminal(TERMINAL_CHAR_TYPE ch) { int write_to_terminal(TERMINAL_CHAR_TYPE ch) {
write(current_terminal, &ch, 1); write(current_terminal, &ch, 1);
} }
void write_capability(JNIEnv *env, const char* capability, jobject result) { void write_capability(JNIEnv *env, const char* capability, jobject result) {
char* cap = tgetstr((char*)capability, NULL); if (capability == NULL) {
if (cap == NULL) {
mark_failed_with_message(env, "unknown terminal capability", result); mark_failed_with_message(env, "unknown terminal capability", result);
return; return;
} }
if (tputs(cap, 1, write_to_terminal) == ERR) { if (tputs(capability, 1, write_to_terminal) == ERR) {
mark_failed_with_message(env, "could not write to terminal", result); mark_failed_with_message(env, "could not write to terminal", result);
return; return;
} }
} }
void write_param_capability(JNIEnv *env, const char* capability, int count, jobject result) { void write_param_capability(JNIEnv *env, const char* capability, int count, jobject result) {
char* cap = tgetstr((char*)capability, NULL); if (capability == NULL) {
if (cap == NULL) {
mark_failed_with_message(env, "unknown terminal capability", result); mark_failed_with_message(env, "unknown terminal capability", result);
return; return;
} }
cap = tparm(cap, count, 0, 0, 0, 0, 0, 0, 0, 0); capability = tparm((char*)capability, count, 0, 0, 0, 0, 0, 0, 0, 0);
if (cap == NULL) { if (capability == NULL) {
mark_failed_with_message(env, "could not format terminal capability string", result); mark_failed_with_message(env, "could not format terminal capability string", result);
return; return;
} }
if (tputs(cap, 1, write_to_terminal) == ERR) { if (tputs(capability, 1, write_to_terminal) == ERR) {
mark_failed_with_message(env, "could not write to terminal", result); mark_failed_with_message(env, "could not write to terminal", result);
return; return;
} }
@@ -139,6 +148,7 @@ Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_initTerminal(JNI
mark_failed_with_message(env, "not a terminal", result); mark_failed_with_message(env, "not a terminal", result);
return; return;
} }
if (current_terminal < 0) {
char* termType = getenv("TERM"); char* termType = getenv("TERM");
if (termType == NULL) { if (termType == NULL) {
mark_failed_with_message(env, "$TERM not set", result); mark_failed_with_message(env, "$TERM not set", result);
@@ -149,62 +159,71 @@ Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_initTerminal(JNI
mark_failed_with_message(env, "could not get termcap entry", result); mark_failed_with_message(env, "could not get termcap entry", result);
return; return;
} }
terminal_capabilities[NORMAL_TEXT] = tgetstr((char*)"me", NULL);
terminal_capabilities[BRIGHT_TEXT] = tgetstr((char*)"md", NULL);
terminal_capabilities[FOREGROUND_COLOR] = tgetstr((char*)"AF", NULL);
terminal_capabilities[CURSOR_UP] = tgetstr((char*)"up", NULL);
terminal_capabilities[CURSOR_DOWN] = tgetstr((char*)"do", NULL);
terminal_capabilities[CURSOR_LEFT] = tgetstr((char*)"le", NULL);
terminal_capabilities[CURSOR_RIGHT] = tgetstr((char*)"nd", NULL);
terminal_capabilities[CURSOR_START_LINE] = tgetstr((char*)"cr", NULL);
terminal_capabilities[CLEAR_END_OF_LINE] = tgetstr((char*)"ce", NULL);
}
current_terminal = output + 1; current_terminal = output + 1;
write_capability(env, "me", result); write_capability(env, terminal_capabilities[NORMAL_TEXT], result);
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_bold(JNIEnv *env, jclass target, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_bold(JNIEnv *env, jclass target, jobject result) {
write_capability(env, "md", result); write_capability(env, terminal_capabilities[BRIGHT_TEXT], result);
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_reset(JNIEnv *env, jclass target, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_reset(JNIEnv *env, jclass target, jobject result) {
write_capability(env, "me", result); write_capability(env, terminal_capabilities[NORMAL_TEXT], result);
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_foreground(JNIEnv *env, jclass target, jint color, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_foreground(JNIEnv *env, jclass target, jint color, jobject result) {
write_param_capability(env, "AF", color, result); write_param_capability(env, terminal_capabilities[FOREGROUND_COLOR], color, result);
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_up(JNIEnv *env, jclass target, jint count, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_up(JNIEnv *env, jclass target, jint count, jobject result) {
for (jint i = 0; i < count; i++) { for (jint i = 0; i < count; i++) {
write_capability(env, "up", result); write_capability(env, terminal_capabilities[CURSOR_UP], result);
} }
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_down(JNIEnv *env, jclass target, jint count, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_down(JNIEnv *env, jclass target, jint count, jobject result) {
for (jint i = 0; i < count; i++) { for (jint i = 0; i < count; i++) {
write_capability(env, "do", result); write_capability(env, terminal_capabilities[CURSOR_DOWN], result);
} }
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_left(JNIEnv *env, jclass target, jint count, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_left(JNIEnv *env, jclass target, jint count, jobject result) {
for (jint i = 0; i < count; i++) { for (jint i = 0; i < count; i++) {
write_capability(env, "le", result); write_capability(env, terminal_capabilities[CURSOR_LEFT], result);
} }
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_right(JNIEnv *env, jclass target, jint count, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_right(JNIEnv *env, jclass target, jint count, jobject result) {
for (jint i = 0; i < count; i++) { for (jint i = 0; i < count; i++) {
write_capability(env, "nd", result); write_capability(env, terminal_capabilities[CURSOR_RIGHT], result);
} }
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_startLine(JNIEnv *env, jclass target, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_startLine(JNIEnv *env, jclass target, jobject result) {
write_capability(env, "cr", result); write_capability(env, terminal_capabilities[CURSOR_START_LINE], result);
} }
JNIEXPORT void JNICALL JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_clearToEndOfLine(JNIEnv *env, jclass target, jobject result) { Java_net_rubygrapefruit_platform_internal_jni_TerminfoFunctions_clearToEndOfLine(JNIEnv *env, jclass target, jobject result) {
write_capability(env, "ce", result); write_capability(env, terminal_capabilities[CLEAR_END_OF_LINE], result);
} }
#endif #endif