C++ (Cpp) handle_key_left_arrow Examples

Example #1

File: scrollbar_container.cpp Project: CliffsDover/wesnoth

void
tscrollbar_container::signal_handler_sdl_key_down(const event::tevent event,
												  bool& handled,
												  const SDLKey key,
												  SDLMod modifier)
{
	DBG_GUI_E << LOG_HEADER << event << ".\n";

	switch(key) {
		case SDLK_HOME:
			handle_key_home(modifier, handled);
			break;

		case SDLK_END:
			handle_key_end(modifier, handled);
			break;


		case SDLK_PAGEUP:
			handle_key_page_up(modifier, handled);
			break;

		case SDLK_PAGEDOWN:
			handle_key_page_down(modifier, handled);
			break;


		case SDLK_UP:
			handle_key_up_arrow(modifier, handled);
			break;

		case SDLK_DOWN:
			handle_key_down_arrow(modifier, handled);
			break;

		case SDLK_LEFT:
			handle_key_left_arrow(modifier, handled);
			break;

		case SDLK_RIGHT:
			handle_key_right_arrow(modifier, handled);
			break;
		default:
			/* ignore */
			break;
	}
}

Example #2

void ttext_::signal_handler_sdl_key_down(const event::tevent event
		, bool& handled
		, const SDLKey key
		, SDLMod modifier
		, const Uint16 unicode)
{

	DBG_GUI_E << LOG_HEADER << ' ' << event << ".\n";

// For copy/paste we use a different key on the MAC. Other ctrl modifiers won't
// be modifed seems not to be required when I read the comment in
// widgets/textbox.cpp:516. Would be nice if somebody on a MAC would test it.
#ifdef __APPLE__
	const unsigned copypaste_modifier = KMOD_LMETA | KMOD_RMETA;
#else
	const unsigned copypaste_modifier = KMOD_CTRL;
#endif

	switch(key) {

		case SDLK_LEFT :
			handle_key_left_arrow(modifier, handled);
			break;

		case SDLK_RIGHT :
			handle_key_right_arrow(modifier, handled);
			break;

		case SDLK_UP :
			handle_key_up_arrow(modifier, handled);
			break;

		case SDLK_DOWN :
			handle_key_down_arrow(modifier, handled);
			break;

		case SDLK_PAGEUP :
			handle_key_page_up(modifier, handled);
			break;

		case SDLK_PAGEDOWN :
			handle_key_page_down(modifier, handled);
			break;

		case SDLK_a :
			if(!(modifier & KMOD_CTRL)) {
				handle_key_default(handled, key, modifier, unicode);
				break;
			}

			// If ctrl-a is used for home drop the control modifier
			modifier = static_cast<SDLMod>(modifier &~ KMOD_CTRL);
			/* FALL DOWN */

		case SDLK_HOME :
			handle_key_home(modifier, handled);
			break;

		case SDLK_e :
			if(!(modifier & KMOD_CTRL)) {
				handle_key_default(handled, key, modifier, unicode);
				break;
			}

			// If ctrl-e is used for end drop the control modifier
			modifier = static_cast<SDLMod>(modifier &~ KMOD_CTRL);
			/* FALL DOWN */

		case SDLK_END :
			handle_key_end(modifier, handled);
			break;

		case SDLK_BACKSPACE :
			handle_key_backspace(modifier, handled);
			break;

		case SDLK_u :
			if(modifier & KMOD_CTRL) {
				handle_key_clear_line(modifier, handled);
			} else {
				handle_key_default(handled, key, modifier, unicode);
			}
			break;

		case SDLK_DELETE :
			handle_key_delete(modifier, handled);
			break;

		case SDLK_c :
			if(!(modifier & copypaste_modifier)) {
				handle_key_default(handled, key, modifier, unicode);
				break;
			}

			// atm we don't care whether there is something to copy or paste
			// if nothing is there we still don't want to be chained.
			copy_selection(false);
			handled = true;
			break;

		case SDLK_x :
			if(!(modifier & copypaste_modifier)) {
				handle_key_default(handled, key, modifier, unicode);
				break;
			}

			copy_selection(false);
			delete_selection();
			handled = true;
			break;

		case SDLK_v :
			if(!(modifier & copypaste_modifier)) {
				handle_key_default(handled, key, modifier, unicode);
				break;
			}

			paste_selection(false);
			handled = true;
			break;

		default :
			handle_key_default(handled, key, modifier, unicode);

	}

	if(text_changed_callback_) {
		text_changed_callback_(this, this->text());
	}

}