254 lines
5.7 KiB
C++
254 lines
5.7 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <http://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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/*
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*
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* SDL mouse driver
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*
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*/
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#include <string.h>
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#include <SDL.h>
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#include "maths.h"
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#include "timer.h"
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#include "event.h"
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#include "window.h"
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#include "mouse.h"
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#include "playsave.h"
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#include "dxxerror.h"
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#include "args.h"
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#include "gr.h"
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namespace {
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struct flushable_mouseinfo
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{
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int delta_x, delta_y, delta_z;
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int z;
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};
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struct mouseinfo : flushable_mouseinfo
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{
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int x,y;
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int cursor_enabled;
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fix64 cursor_time;
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array<fix64, MOUSE_MAX_BUTTONS> time_lastpressed;
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};
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}
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static mouseinfo Mouse;
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d_event_mousebutton::d_event_mousebutton(const event_type type, const unsigned b) :
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d_event{type}, button(b)
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{
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}
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void mouse_init(void)
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{
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Mouse = {};
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}
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void mouse_close(void)
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{
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SDL_ShowCursor(SDL_ENABLE);
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}
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static void maybe_send_z_move(const unsigned button)
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{
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d_event_mouse_moved event{};
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event.type = EVENT_MOUSE_MOVED;
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if (button == MBTN_Z_UP)
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{
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Mouse.delta_z += Z_SENSITIVITY;
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Mouse.z += Z_SENSITIVITY;
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event.dz = Z_SENSITIVITY;
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}
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else if (button == MBTN_Z_DOWN)
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{
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Mouse.delta_z -= Z_SENSITIVITY;
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Mouse.z -= Z_SENSITIVITY;
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event.dz = -1*Z_SENSITIVITY;
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}
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else
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return;
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event_send(event);
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}
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static void send_singleclick(const bool pressed, const unsigned button)
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{
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const d_event_mousebutton event{pressed ? EVENT_MOUSE_BUTTON_DOWN : EVENT_MOUSE_BUTTON_UP, button};
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con_printf(CON_DEBUG, "Sending event %s, button %d, coords %d,%d,%d",
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pressed ? "EVENT_MOUSE_BUTTON_DOWN" : "EVENT_MOUSE_BUTTON_UP", event.button, Mouse.x, Mouse.y, Mouse.z);
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event_send(event);
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}
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static void maybe_send_doubleclick(const fix64 now, const unsigned button)
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{
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auto &when = Mouse.time_lastpressed[button];
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const auto then = when;
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when = now;
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if (now > then + F1_0/5)
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return;
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const d_event_mousebutton event{EVENT_MOUSE_DOUBLE_CLICKED, button};
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con_printf(CON_DEBUG, "Sending event EVENT_MOUSE_DOUBLE_CLICKED, button %d, coords %d,%d", button, Mouse.x, Mouse.y);
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event_send(event);
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}
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void mouse_button_handler(SDL_MouseButtonEvent *mbe)
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{
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if (unlikely(CGameArg.CtlNoMouse))
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return;
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// to bad, SDL buttons use a different mapping as descent expects,
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// this is at least true and tested for the first three buttons
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static const array<int, 17> button_remap{{
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MBTN_LEFT,
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MBTN_MIDDLE,
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MBTN_RIGHT,
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MBTN_Z_UP,
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MBTN_Z_DOWN,
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MBTN_PITCH_BACKWARD,
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MBTN_PITCH_FORWARD,
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MBTN_BANK_LEFT,
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MBTN_BANK_RIGHT,
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MBTN_HEAD_LEFT,
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MBTN_HEAD_RIGHT,
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MBTN_11,
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MBTN_12,
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MBTN_13,
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MBTN_14,
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MBTN_15,
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MBTN_16
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}};
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const unsigned button_idx = mbe->button - 1; // -1 since SDL seems to start counting at 1
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if (unlikely(button_idx >= button_remap.size()))
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return;
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const auto now = timer_query();
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const auto button = button_remap[button_idx];
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const auto mbe_state = mbe->state;
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Mouse.cursor_time = now;
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const auto pressed = mbe_state != SDL_RELEASED;
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if (pressed) {
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maybe_send_z_move(button);
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}
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send_singleclick(pressed, button);
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//Double-click support
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if (pressed)
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{
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maybe_send_doubleclick(now, button);
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}
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}
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void mouse_motion_handler(SDL_MouseMotionEvent *mme)
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{
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d_event_mouse_moved event;
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if (CGameArg.CtlNoMouse)
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return;
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Mouse.cursor_time = timer_query();
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Mouse.x += mme->xrel;
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Mouse.y += mme->yrel;
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event.type = EVENT_MOUSE_MOVED;
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event.dx = mme->xrel;
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event.dy = mme->yrel;
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event.dz = 0; // handled in mouse_button_handler
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//con_printf(CON_DEBUG, "Sending event EVENT_MOUSE_MOVED, relative motion %d,%d,%d",
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// event.dx, event.dy, event.dz);
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event_send(event);
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}
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void mouse_flush() // clears all mice events...
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{
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// event_poll();
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static_cast<flushable_mouseinfo &>(Mouse) = {};
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SDL_GetMouseState(&Mouse.x, &Mouse.y); // necessary because polling only gives us the delta.
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}
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//========================================================================
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void mouse_get_pos( int *x, int *y, int *z )
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{
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//event_poll(); // Have to assume this is called in event_process, because event_poll can cause a window to close (depending on what the user does)
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*x=Mouse.x;
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*y=Mouse.y;
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*z=Mouse.z;
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}
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window_event_result mouse_in_window(window *wind)
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{
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auto &canv = window_get_canvas(*wind);
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return (static_cast<unsigned>(Mouse.x) - canv.cv_bitmap.bm_x <= canv.cv_bitmap.bm_w) &&
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(static_cast<unsigned>(Mouse.y) - canv.cv_bitmap.bm_y <= canv.cv_bitmap.bm_h) ? window_event_result::handled : window_event_result::ignored;
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}
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void mouse_get_delta( int *dx, int *dy, int *dz )
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{
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*dz = Mouse.delta_z;
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Mouse.delta_x = 0;
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Mouse.delta_y = 0;
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Mouse.delta_z = 0;
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SDL_GetRelativeMouseState(dx, dy);
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}
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template <bool noactivate>
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static void mouse_change_cursor()
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{
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Mouse.cursor_enabled = (!noactivate && !CGameArg.CtlNoMouse && !CGameArg.CtlNoCursor);
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if (!Mouse.cursor_enabled)
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SDL_ShowCursor(SDL_DISABLE);
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}
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void mouse_enable_cursor()
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{
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mouse_change_cursor<false>();
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}
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void mouse_disable_cursor()
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{
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mouse_change_cursor<true>();
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}
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// If we want to display/hide cursor, do so if not already and also hide it automatically after some time.
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void mouse_cursor_autohide()
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{
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static fix64 hidden_time = 0;
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const auto is_showing = SDL_ShowCursor(SDL_QUERY);
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int result;
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if (Mouse.cursor_enabled)
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{
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const auto now = timer_query();
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const auto cursor_time = Mouse.cursor_time;
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const auto recent_cursor_time = cursor_time + (F1_0*2) >= now;
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if (is_showing)
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{
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if (recent_cursor_time)
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return;
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hidden_time = now;
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result = SDL_DISABLE;
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}
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else
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{
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if (!(recent_cursor_time && hidden_time + (F1_0/2) < now))
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return;
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result = SDL_ENABLE;
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}
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}
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else
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{
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if (!is_showing)
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return;
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result = SDL_DISABLE;
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}
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SDL_ShowCursor(result);
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}
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