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godot/platform/haiku/haiku_direct_window.cpp

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/*************************************************************************/
/* haiku_direct_window.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include <UnicodeChar.h>
#include "haiku_direct_window.h"
#include "key_mapping_haiku.h"
#include "main/main.h"
#include "os/keyboard.h"
HaikuDirectWindow::HaikuDirectWindow(BRect p_frame)
: BDirectWindow(p_frame, "Godot", B_TITLED_WINDOW, B_QUIT_ON_WINDOW_CLOSE) {
last_mouse_pos_valid = false;
last_buttons_state = 0;
last_button_mask = 0;
last_key_modifier_state = 0;
}
HaikuDirectWindow::~HaikuDirectWindow() {
delete update_runner;
}
void HaikuDirectWindow::SetHaikuGLView(HaikuGLView *p_view) {
view = p_view;
}
void HaikuDirectWindow::StartMessageRunner() {
update_runner = new BMessageRunner(BMessenger(this),
new BMessage(REDRAW_MSG), 1000000 / 30 /* 30 fps */);
}
void HaikuDirectWindow::StopMessageRunner() {
delete update_runner;
}
void HaikuDirectWindow::SetInput(InputDefault *p_input) {
input = p_input;
}
void HaikuDirectWindow::SetMainLoop(MainLoop *p_main_loop) {
main_loop = p_main_loop;
}
bool HaikuDirectWindow::QuitRequested() {
main_loop->notification(MainLoop::NOTIFICATION_WM_QUIT_REQUEST);
return false;
}
void HaikuDirectWindow::DirectConnected(direct_buffer_info *info) {
view->DirectConnected(info);
view->EnableDirectMode(true);
}
void HaikuDirectWindow::MessageReceived(BMessage *message) {
switch (message->what) {
case REDRAW_MSG:
if (Main::iteration() == true) {
view->EnableDirectMode(false);
Quit();
}
break;
default:
BDirectWindow::MessageReceived(message);
}
}
void HaikuDirectWindow::DispatchMessage(BMessage *message, BHandler *handler) {
switch (message->what) {
case B_MOUSE_DOWN:
case B_MOUSE_UP:
HandleMouseButton(message);
break;
case B_MOUSE_MOVED:
HandleMouseMoved(message);
break;
case B_MOUSE_WHEEL_CHANGED:
HandleMouseWheelChanged(message);
break;
case B_KEY_DOWN:
case B_KEY_UP:
HandleKeyboardEvent(message);
break;
case B_MODIFIERS_CHANGED:
HandleKeyboardModifierEvent(message);
break;
case B_WINDOW_RESIZED:
HandleWindowResized(message);
break;
case LOCKGL_MSG:
view->LockGL();
break;
case UNLOCKGL_MSG:
view->UnlockGL();
break;
default:
BDirectWindow::DispatchMessage(message, handler);
}
}
void HaikuDirectWindow::HandleMouseButton(BMessage *message) {
BPoint where;
if (message->FindPoint("where", &where) != B_OK) {
return;
}
uint32 modifiers = message->FindInt32("modifiers");
uint32 buttons = message->FindInt32("buttons");
uint32 button = buttons ^ last_buttons_state;
last_buttons_state = buttons;
// TODO: implement the mouse_mode checks
/*
if (mouse_mode == MOUSE_MODE_CAPTURED) {
event.xbutton.x=last_mouse_pos.x;
event.xbutton.y=last_mouse_pos.y;
}
*/
InputEvent mouse_event;
mouse_event.ID = ++event_id;
mouse_event.type = InputEvent::MOUSE_BUTTON;
mouse_event.device = 0;
mouse_event.mouse_button.mod = GetKeyModifierState(modifiers);
mouse_event.mouse_button.button_mask = GetMouseButtonState(buttons);
mouse_event.mouse_button.x = where.x;
mouse_event.mouse_button.y = where.y;
mouse_event.mouse_button.global_x = where.x;
mouse_event.mouse_button.global_y = where.y;
switch (button) {
default:
case B_PRIMARY_MOUSE_BUTTON:
mouse_event.mouse_button.button_index = 1;
break;
case B_SECONDARY_MOUSE_BUTTON:
mouse_event.mouse_button.button_index = 2;
break;
case B_TERTIARY_MOUSE_BUTTON:
mouse_event.mouse_button.button_index = 3;
break;
}
mouse_event.mouse_button.pressed = (message->what == B_MOUSE_DOWN);
if (message->what == B_MOUSE_DOWN && mouse_event.mouse_button.button_index == 1) {
int32 clicks = message->FindInt32("clicks");
if (clicks > 1) {
mouse_event.mouse_button.doubleclick = true;
}
}
input->parse_input_event(mouse_event);
}
void HaikuDirectWindow::HandleMouseMoved(BMessage *message) {
BPoint where;
if (message->FindPoint("where", &where) != B_OK) {
return;
}
Point2i pos(where.x, where.y);
uint32 modifiers = message->FindInt32("modifiers");
uint32 buttons = message->FindInt32("buttons");
if (!last_mouse_pos_valid) {
last_mouse_position = pos;
last_mouse_pos_valid = true;
}
Point2i rel = pos - last_mouse_position;
InputEvent motion_event;
motion_event.ID = ++event_id;
motion_event.type = InputEvent::MOUSE_MOTION;
motion_event.device = 0;
motion_event.mouse_motion.mod = GetKeyModifierState(modifiers);
motion_event.mouse_motion.button_mask = GetMouseButtonState(buttons);
motion_event.mouse_motion.x = pos.x;
motion_event.mouse_motion.y = pos.y;
input->set_mouse_pos(pos);
motion_event.mouse_motion.global_x = pos.x;
motion_event.mouse_motion.global_y = pos.y;
motion_event.mouse_motion.speed_x = input->get_last_mouse_speed().x;
motion_event.mouse_motion.speed_y = input->get_last_mouse_speed().y;
motion_event.mouse_motion.relative_x = rel.x;
motion_event.mouse_motion.relative_y = rel.y;
last_mouse_position = pos;
input->parse_input_event(motion_event);
}
void HaikuDirectWindow::HandleMouseWheelChanged(BMessage *message) {
float wheel_delta_y = 0;
if (message->FindFloat("be:wheel_delta_y", &wheel_delta_y) != B_OK) {
return;
}
InputEvent mouse_event;
mouse_event.ID = ++event_id;
mouse_event.type = InputEvent::MOUSE_BUTTON;
mouse_event.device = 0;
mouse_event.mouse_button.button_index = wheel_delta_y < 0 ? 4 : 5;
mouse_event.mouse_button.mod = GetKeyModifierState(last_key_modifier_state);
mouse_event.mouse_button.button_mask = last_button_mask;
mouse_event.mouse_button.x = last_mouse_position.x;
mouse_event.mouse_button.y = last_mouse_position.y;
mouse_event.mouse_button.global_x = last_mouse_position.x;
mouse_event.mouse_button.global_y = last_mouse_position.y;
mouse_event.mouse_button.pressed = true;
input->parse_input_event(mouse_event);
mouse_event.ID = ++event_id;
mouse_event.mouse_button.pressed = false;
input->parse_input_event(mouse_event);
}
void HaikuDirectWindow::HandleKeyboardEvent(BMessage *message) {
int32 raw_char = 0;
int32 key = 0;
int32 modifiers = 0;
if (message->FindInt32("raw_char", &raw_char) != B_OK) {
return;
}
if (message->FindInt32("key", &key) != B_OK) {
return;
}
if (message->FindInt32("modifiers", &modifiers) != B_OK) {
return;
}
InputEvent event;
event.ID = ++event_id;
event.type = InputEvent::KEY;
event.device = 0;
event.key.mod = GetKeyModifierState(modifiers);
event.key.pressed = (message->what == B_KEY_DOWN);
event.key.scancode = KeyMappingHaiku::get_keysym(raw_char, key);
event.key.echo = message->HasInt32("be:key_repeat");
event.key.unicode = 0;
const char *bytes = NULL;
if (message->FindString("bytes", &bytes) == B_OK) {
event.key.unicode = BUnicodeChar::FromUTF8(&bytes);
}
//make it consistent across platforms.
if (event.key.scancode == KEY_BACKTAB) {
event.key.scancode = KEY_TAB;
event.key.mod.shift = true;
}
input->parse_input_event(event);
}
void HaikuDirectWindow::HandleKeyboardModifierEvent(BMessage *message) {
int32 old_modifiers = 0;
int32 modifiers = 0;
if (message->FindInt32("be:old_modifiers", &old_modifiers) != B_OK) {
return;
}
if (message->FindInt32("modifiers", &modifiers) != B_OK) {
return;
}
int32 key = old_modifiers ^ modifiers;
InputEvent event;
event.ID = ++event_id;
event.type = InputEvent::KEY;
event.device = 0;
event.key.mod = GetKeyModifierState(modifiers);
event.key.pressed = ((modifiers & key) != 0);
event.key.scancode = KeyMappingHaiku::get_modifier_keysym(key);
event.key.echo = false;
event.key.unicode = 0;
input->parse_input_event(event);
}
void HaikuDirectWindow::HandleWindowResized(BMessage *message) {
int32 width = 0;
int32 height = 0;
if ((message->FindInt32("width", &width) != B_OK) || (message->FindInt32("height", &height) != B_OK)) {
return;
}
current_video_mode->width = width;
current_video_mode->height = height;
}
inline InputModifierState HaikuDirectWindow::GetKeyModifierState(uint32 p_state) {
last_key_modifier_state = p_state;
InputModifierState state;
state.shift = (p_state & B_SHIFT_KEY) != 0;
state.control = (p_state & B_CONTROL_KEY) != 0;
state.alt = (p_state & B_OPTION_KEY) != 0;
state.meta = (p_state & B_COMMAND_KEY) != 0;
return state;
}
inline int HaikuDirectWindow::GetMouseButtonState(uint32 p_state) {
int state = 0;
if (p_state & B_PRIMARY_MOUSE_BUTTON) {
state |= 1 << 0;
}
if (p_state & B_SECONDARY_MOUSE_BUTTON) {
state |= 1 << 1;
}
if (p_state & B_TERTIARY_MOUSE_BUTTON) {
state |= 1 << 2;
}
last_button_mask = state;
return state;
}
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