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replace ncurses getch calls with a get_key method

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This commit is contained in:
Maxime Coste 2012-01-23 14:17:31 +00:00
parent 950a734ce5
commit a62d56064f
1 changed files with 68 additions and 47 deletions
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115
src/main.cc
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@ -163,6 +163,30 @@ void draw_window(Window& window)
move(cursor_position.line, cursor_position.column);
}
Key get_key()
{
char c = getch();
Key::Modifiers modifiers = Key::Modifiers::None;
if (c > 0 and c < 27)
{
modifiers = Key::Modifiers::Control;
c = c - 1 + 'a';
}
else if (c == 27)
{
timeout(0);
char new_c = getch();
timeout(-1);
if (new_c != ERR)
{
c = new_c;
modifiers = Key::Modifiers::Alt;
}
}
return Key(modifiers, c);
}
void init_ncurses()
{
initscr();
@ -293,41 +317,53 @@ void print_status(const std::string& status)
struct InsertSequence
{
IncrementalInserter::Mode mode;
std::string keys;
std::vector<Key> keys;
InsertSequence() : mode(IncrementalInserter::Mode::Insert) {}
};
InsertSequence last_insert_sequence;
bool insert_char(IncrementalInserter& inserter, char c)
bool insert_char(IncrementalInserter& inserter, const Key& key)
{
switch (c)
switch (key.modifiers)
{
case 27:
return false;
case Key::Modifiers::None:
switch (key.key)
{
case 27:
return false;
case 2:
c = getch();
if (c >= '0' and c <= '9')
inserter.insert_capture(c - '0');
case '\r':
inserter.insert(std::string() + '\n');
break;
default:
inserter.insert(std::string() + key.key);
}
break;
case 4:
inserter.move_cursor({0, -1});
case Key::Modifiers::Control:
switch (key.key)
{
case 'b':
{
Key next_key = get_key();
last_insert_sequence.keys.push_back(next_key);
if (next_key.modifiers == Key::Modifiers::None and
next_key.key >= '0' and next_key.key <= '9')
inserter.insert_capture(next_key.key - '0');
break;
}
case 'd':
inserter.move_cursor({0, -1});
break;
case 'e':
inserter.move_cursor({0, 1});
break;
case 'g':
inserter.erase();
break;
}
break;
case 5:
inserter.move_cursor({0, 1});
break;
case 7:
inserter.erase();
break;
case '\r':
c = '\n';
default:
inserter.insert(std::string() + c);
}
return true;
}
@ -340,12 +376,12 @@ void do_insert(Window& window, IncrementalInserter::Mode mode)
draw_window(window);
while(true)
{
char c = getch();
Key key = get_key();
if (not insert_char(inserter, c))
if (not insert_char(inserter, key))
return;
last_insert_sequence.keys += c;
last_insert_sequence.keys.push_back(key);
draw_window(window);
}
}
@ -353,9 +389,9 @@ void do_insert(Window& window, IncrementalInserter::Mode mode)
void do_repeat_insert(Window& window, int count)
{
IncrementalInserter inserter(window, last_insert_sequence.mode);
for (char c : last_insert_sequence.keys)
for (const Key& key : last_insert_sequence.keys)
{
insert_char(inserter, c);
insert_char(inserter, key);
}
draw_window(window);
}
@ -1053,26 +1089,11 @@ int main(int argc, char* argv[])
{
try
{
char c = getch();
if (isdigit(c))
count = count * 10 + c - '0';
Key key = get_key();
if (key.modifiers == Key::Modifiers::None and isdigit(key.key))
count = count * 10 + key.key - '0';
else
{
Key::Modifiers modifiers = Key::Modifiers::None;
if (c == 27)
{
timeout(0);
char new_c = getch();
timeout(-1);
if (new_c != ERR)
{
c = new_c;
modifiers = Key::Modifiers::Alt;
}
}
Key key(modifiers, c);
auto it = keymap.find(key);
if (it != keymap.end())
{