slouken@0
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1 |
/*
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slouken@5535
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Simple DirectMedia Layer
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slouken@6138
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Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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slouken@0
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slouken@5535
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This software is provided 'as-is', without any express or implied
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slouken@5535
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warranty. In no event will the authors be held liable for any damages
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slouken@5535
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arising from the use of this software.
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slouken@0
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slouken@5535
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Permission is granted to anyone to use this software for any purpose,
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slouken@5535
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including commercial applications, and to alter it and redistribute it
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slouken@5535
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freely, subject to the following restrictions:
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slouken@0
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slouken@5535
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1. The origin of this software must not be misrepresented; you must not
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slouken@5535
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claim that you wrote the original software. If you use this software
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slouken@5535
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in a product, an acknowledgment in the product documentation would be
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slouken@5535
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appreciated but is not required.
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slouken@5535
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2. Altered source versions must be plainly marked as such, and must not be
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slouken@5535
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misrepresented as being the original software.
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slouken@5535
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3. This notice may not be removed or altered from any source distribution.
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slouken@0
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*/
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slouken@1402
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#include "SDL_config.h"
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slouken@0
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slouken@0
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/* General mouse handling code for SDL */
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slouken@0
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slouken@6666
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#include "SDL_assert.h"
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slouken@0
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#include "SDL_events.h"
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slouken@0
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#include "SDL_events_c.h"
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slouken@1895
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#include "default_cursor.h"
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slouken@3685
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#include "../video/SDL_sysvideo.h"
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slouken@0
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slouken@6666
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/*#define DEBUG_MOUSE*/
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slouken@0
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slouken@5371
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/* The mouse state */
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slouken@4465
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static SDL_Mouse SDL_mouse;
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slouken@0
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slouken@0
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slouken@0
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/* Public functions */
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slouken@1895
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int
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slouken@1895
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SDL_MouseInit(void)
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slouken@1895
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{
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slouken@5376
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@5376
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slouken@5376
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mouse->cursor_shown = SDL_TRUE;
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slouken@5376
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slouken@1895
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return (0);
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slouken@1895
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}
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slouken@1895
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slouken@5405
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void
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slouken@5405
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SDL_SetDefaultCursor(SDL_Cursor * cursor)
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slouken@5405
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{
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slouken@5405
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@5405
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slouken@5405
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mouse->def_cursor = cursor;
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slouken@5405
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if (!mouse->cur_cursor) {
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slouken@5405
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SDL_SetCursor(cursor);
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slouken@5405
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}
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slouken@5405
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}
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slouken@5405
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slouken@5371
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SDL_Mouse *
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slouken@5371
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SDL_GetMouse(void)
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slouken@5371
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{
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slouken@5371
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return &SDL_mouse;
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slouken@5371
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}
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slouken@5371
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slouken@4465
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SDL_Window *
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slouken@4465
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SDL_GetMouseFocus(void)
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slouken@0
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{
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slouken@5371
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@1895
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slouken@4465
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return mouse->focus;
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slouken@1895
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}
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slouken@1895
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slouken@1895
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void
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slouken@6666
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SDL_ResetMouse(void)
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slouken@6666
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{
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slouken@6666
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@6666
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Uint8 i;
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slouken@6666
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slouken@6666
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#ifdef DEBUG_MOUSE
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slouken@6666
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printf("Resetting mouse\n");
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slouken@6666
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#endif
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slouken@6666
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for (i = 1; i <= sizeof(mouse->buttonstate)*8; ++i) {
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slouken@6666
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if (mouse->buttonstate & SDL_BUTTON(i)) {
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slouken@6666
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SDL_SendMouseButton(mouse->focus, SDL_RELEASED, i);
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slouken@6666
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}
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slouken@6666
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}
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slouken@6666
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SDL_assert(mouse->buttonstate == 0);
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slouken@6666
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}
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slouken@6666
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slouken@6666
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void
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slouken@4465
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SDL_SetMouseFocus(SDL_Window * window)
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slouken@1895
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{
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slouken@5371
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@1895
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slouken@4465
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if (mouse->focus == window) {
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slouken@1895
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return;
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slouken@1895
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}
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slouken@1895
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slouken@6666
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if (mouse->focus && !window) {
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slouken@6666
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/* We won't get anymore mouse messages, so reset mouse state */
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slouken@6666
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SDL_ResetMouse();
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slouken@6666
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}
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slouken@6666
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slouken@1895
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/* See if the current window has lost focus */
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slouken@1895
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if (mouse->focus) {
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slouken@4465
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SDL_SendWindowEvent(mouse->focus, SDL_WINDOWEVENT_LEAVE, 0, 0);
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slouken@1895
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}
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slouken@1895
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mouse->focus = window;
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slouken@1895
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slouken@1895
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if (mouse->focus) {
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slouken@4465
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SDL_SendWindowEvent(mouse->focus, SDL_WINDOWEVENT_ENTER, 0, 0);
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slouken@1895
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}
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slouken@6666
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slouken@6666
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/* Update cursor visibility */
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slouken@6666
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SDL_SetCursor(NULL);
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slouken@6666
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}
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slouken@6666
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slouken@6666
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/* Check to see if we need to synthesize focus events */
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slouken@6666
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static SDL_bool
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slouken@6666
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SDL_UpdateMouseFocus(SDL_Window * window, int x, int y, Uint8 buttonstate)
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slouken@6666
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{
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slouken@6666
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@6666
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int w, h;
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slouken@6666
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SDL_bool inWindow;
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slouken@6666
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slouken@6666
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SDL_GetWindowSize(window, &w, &h);
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slouken@6666
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if (x < 0 || y < 0 || x >= w || y >= h) {
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slouken@6666
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inWindow = SDL_FALSE;
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slouken@6666
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} else {
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slouken@6666
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inWindow = SDL_TRUE;
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slouken@6666
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}
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slouken@6667
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slouken@6667
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/* Linux doesn't give you mouse events outside your window unless you grab
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slouken@6667
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the pointer.
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slouken@6667
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slouken@6667
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Windows doesn't give you mouse events outside your window unless you call
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slouken@6667
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SetCapture().
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slouken@6667
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slouken@6667
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Both of these are slightly scary changes, so for now we'll punt and if the
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slouken@6667
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mouse leaves the window you'll lose mouse focus and reset button state.
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slouken@6667
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*/
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slouken@6667
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#ifdef SUPPORT_DRAG_OUTSIDE_WINDOW
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slouken@6666
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if (!inWindow && !buttonstate) {
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slouken@6667
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#else
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slouken@6667
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if (!inWindow) {
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slouken@6667
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#endif
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slouken@6666
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if (window == mouse->focus) {
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slouken@6666
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#ifdef DEBUG_MOUSE
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slouken@6666
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printf("Mouse left window, synthesizing focus lost event\n");
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slouken@6666
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#endif
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slouken@6666
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SDL_SetMouseFocus(NULL);
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slouken@6666
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}
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slouken@6666
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return SDL_FALSE;
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slouken@6666
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}
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slouken@6666
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slouken@6666
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if (window != mouse->focus) {
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slouken@6666
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mouse->last_x = x;
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slouken@6666
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mouse->last_y = y;
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slouken@6666
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slouken@6666
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#ifdef DEBUG_MOUSE
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slouken@6666
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printf("Mouse entered window, synthesizing focus gain event\n");
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slouken@6666
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#endif
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slouken@6666
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SDL_SetMouseFocus(window);
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slouken@6666
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}
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slouken@6666
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return SDL_TRUE;
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slouken@0
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}
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slouken@0
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slouken@1895
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int
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slouken@4484
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SDL_SendMouseMotion(SDL_Window * window, int relative, int x, int y)
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slouken@0
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{
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slouken@5371
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SDL_Mouse *mouse = SDL_GetMouse();
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slouken@1895
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int posted;
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slouken@1895
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int xrel;
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slouken@1895
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int yrel;
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slouken@2860
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int x_max = 0, y_max = 0;
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slouken@1895
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slouken@6666
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if (window && !relative) {
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slouken@6666
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if (!SDL_UpdateMouseFocus(window, x, y, mouse->buttonstate)) {
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slouken@6666
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return 0;
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slouken@6666
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}
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slouken@4484
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}
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slouken@4484
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slouken@6666
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/* relative motion is calculated regarding the system cursor last position */
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slouken@2842
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if (relative) {
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slouken@2842
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xrel = x;
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slouken@2842
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yrel = y;
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slouken@2860
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x = (mouse->last_x + x);
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slouken@2860
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y = (mouse->last_y + y);
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slouken@2842
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} else {
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slouken@2860
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xrel = x - mouse->last_x;
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slouken@2860
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yrel = y - mouse->last_y;
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slouken@2842
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}
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slouken@2710
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slouken@1895
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/* Drop events that don't change state */
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slouken@1895
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if (!xrel && !yrel) {
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slouken@6666
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#ifdef DEBUG_MOUSE
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slouken@1895
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printf("Mouse event didn't change state - dropped!\n");
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slouken@1895
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#endif
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slouken@1895
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return 0;
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slouken@1895
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}
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slouken@0
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202 |
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slouken@2710
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203 |
/* Update internal mouse coordinates */
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slouken@2710
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if (mouse->relative_mode == SDL_FALSE) {
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slouken@1895
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mouse->x = x;
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slouken@1895
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mouse->y = y;
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slouken@2710
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} else {
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slouken@2860
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mouse->x += xrel;
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slouken@2860
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mouse->y += yrel;
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slouken@2860
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210 |
}
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slouken@2849
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slouken@2860
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SDL_GetWindowSize(mouse->focus, &x_max, &y_max);
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slouken@5370
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--x_max;
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slouken@5370
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--y_max;
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slouken@2849
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215 |
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slouken@2860
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216 |
/* make sure that the pointers find themselves inside the windows */
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slouken@5370
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217 |
if (mouse->x > x_max) {
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slouken@2860
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218 |
mouse->x = x_max;
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slouken@5370
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219 |
}
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slouken@5370
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220 |
if (mouse->x < 0) {
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slouken@2860
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221 |
mouse->x = 0;
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slouken@1895
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222 |
}
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slouken@2860
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223 |
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slouken@5370
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224 |
if (mouse->y > y_max) {
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slouken@2860
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225 |
mouse->y = y_max;
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slouken@5370
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226 |
}
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slouken@5370
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227 |
if (mouse->y < 0) {
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slouken@2860
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228 |
mouse->y = 0;
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slouken@2860
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229 |
}
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slouken@2860
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230 |
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slouken@1895
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231 |
mouse->xdelta += xrel;
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slouken@1895
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232 |
mouse->ydelta += yrel;
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slouken@1895
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233 |
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slouken@4465
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234 |
#if 0 /* FIXME */
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slouken@1895
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235 |
/* Move the mouse cursor, if needed */
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slouken@1895
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236 |
if (mouse->cursor_shown && !mouse->relative_mode &&
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slouken@1895
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237 |
mouse->MoveCursor && mouse->cur_cursor) {
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slouken@1895
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238 |
mouse->MoveCursor(mouse->cur_cursor);
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slouken@1895
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239 |
}
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slouken@4465
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240 |
#endif
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slouken@0
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241 |
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slouken@1895
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242 |
/* Post the event, if desired */
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slouken@1895
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243 |
posted = 0;
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slouken@4465
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244 |
if (SDL_GetEventState(SDL_MOUSEMOTION) == SDL_ENABLE) {
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slouken@1895
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245 |
SDL_Event event;
|
slouken@1895
|
246 |
event.motion.type = SDL_MOUSEMOTION;
|
slouken@4465
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247 |
event.motion.windowID = mouse->focus ? mouse->focus->id : 0;
|
slouken@1895
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248 |
event.motion.state = mouse->buttonstate;
|
slouken@1895
|
249 |
event.motion.x = mouse->x;
|
slouken@1895
|
250 |
event.motion.y = mouse->y;
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slouken@1895
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251 |
event.motion.xrel = xrel;
|
slouken@1895
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252 |
event.motion.yrel = yrel;
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slouken@1895
|
253 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
254 |
}
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slouken@6666
|
255 |
/* Use unclamped values if we're getting events outside the window */
|
slouken@6666
|
256 |
mouse->last_x = x;
|
slouken@6666
|
257 |
mouse->last_y = y;
|
slouken@1895
|
258 |
return posted;
|
slouken@1895
|
259 |
}
|
slouken@1895
|
260 |
|
slouken@1895
|
261 |
int
|
slouken@4484
|
262 |
SDL_SendMouseButton(SDL_Window * window, Uint8 state, Uint8 button)
|
slouken@1895
|
263 |
{
|
slouken@5371
|
264 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
265 |
int posted;
|
slouken@4429
|
266 |
Uint32 type;
|
slouken@6666
|
267 |
Uint8 buttonstate = mouse->buttonstate;
|
slouken@4484
|
268 |
|
slouken@1895
|
269 |
/* Figure out which event to perform */
|
slouken@1895
|
270 |
switch (state) {
|
slouken@1895
|
271 |
case SDL_PRESSED:
|
slouken@1895
|
272 |
type = SDL_MOUSEBUTTONDOWN;
|
slouken@6666
|
273 |
buttonstate |= SDL_BUTTON(button);
|
slouken@1895
|
274 |
break;
|
slouken@1895
|
275 |
case SDL_RELEASED:
|
slouken@1895
|
276 |
type = SDL_MOUSEBUTTONUP;
|
slouken@6666
|
277 |
buttonstate &= ~SDL_BUTTON(button);
|
slouken@1895
|
278 |
break;
|
slouken@1895
|
279 |
default:
|
slouken@1895
|
280 |
/* Invalid state -- bail */
|
slouken@1895
|
281 |
return 0;
|
slouken@1895
|
282 |
}
|
slouken@0
|
283 |
|
slouken@6666
|
284 |
/* We do this after calculating buttonstate so button presses gain focus */
|
slouken@6666
|
285 |
if (window && state == SDL_PRESSED) {
|
slouken@6666
|
286 |
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
|
slouken@6666
|
287 |
}
|
slouken@6666
|
288 |
|
slouken@6666
|
289 |
if (buttonstate == mouse->buttonstate) {
|
slouken@6666
|
290 |
/* Ignore this event, no state change */
|
slouken@6666
|
291 |
return 0;
|
slouken@6666
|
292 |
}
|
slouken@6666
|
293 |
mouse->buttonstate = buttonstate;
|
slouken@6666
|
294 |
|
slouken@1895
|
295 |
/* Post the event, if desired */
|
slouken@1895
|
296 |
posted = 0;
|
slouken@4429
|
297 |
if (SDL_GetEventState(type) == SDL_ENABLE) {
|
slouken@1895
|
298 |
SDL_Event event;
|
slouken@1895
|
299 |
event.type = type;
|
slouken@1895
|
300 |
event.button.state = state;
|
slouken@1895
|
301 |
event.button.button = button;
|
slouken@1895
|
302 |
event.button.x = mouse->x;
|
slouken@1895
|
303 |
event.button.y = mouse->y;
|
slouken@3689
|
304 |
event.button.windowID = mouse->focus ? mouse->focus->id : 0;
|
slouken@1895
|
305 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
306 |
}
|
slouken@6666
|
307 |
|
slouken@6666
|
308 |
/* We do this after dispatching event so button releases can lose focus */
|
slouken@6666
|
309 |
if (window && state == SDL_RELEASED) {
|
slouken@6666
|
310 |
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
|
slouken@6666
|
311 |
}
|
slouken@6666
|
312 |
|
slouken@1895
|
313 |
return posted;
|
slouken@1895
|
314 |
}
|
slouken@1283
|
315 |
|
slouken@1895
|
316 |
int
|
slouken@4484
|
317 |
SDL_SendMouseWheel(SDL_Window * window, int x, int y)
|
slouken@1895
|
318 |
{
|
slouken@5371
|
319 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
320 |
int posted;
|
slouken@1895
|
321 |
|
slouken@4484
|
322 |
if (window) {
|
slouken@4484
|
323 |
SDL_SetMouseFocus(window);
|
slouken@4484
|
324 |
}
|
slouken@4484
|
325 |
|
slouken@4465
|
326 |
if (!x && !y) {
|
slouken@1895
|
327 |
return 0;
|
slouken@1895
|
328 |
}
|
slouken@0
|
329 |
|
slouken@1895
|
330 |
/* Post the event, if desired */
|
slouken@1895
|
331 |
posted = 0;
|
slouken@4429
|
332 |
if (SDL_GetEventState(SDL_MOUSEWHEEL) == SDL_ENABLE) {
|
slouken@1895
|
333 |
SDL_Event event;
|
slouken@1895
|
334 |
event.type = SDL_MOUSEWHEEL;
|
slouken@4465
|
335 |
event.wheel.windowID = mouse->focus ? mouse->focus->id : 0;
|
slouken@2152
|
336 |
event.wheel.x = x;
|
slouken@2152
|
337 |
event.wheel.y = y;
|
slouken@1895
|
338 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
339 |
}
|
slouken@1895
|
340 |
return posted;
|
slouken@1895
|
341 |
}
|
slouken@1895
|
342 |
|
slouken@1895
|
343 |
void
|
slouken@4465
|
344 |
SDL_MouseQuit(void)
|
slouken@4465
|
345 |
{
|
slouken@4465
|
346 |
}
|
slouken@4465
|
347 |
|
slouken@4465
|
348 |
Uint8
|
slouken@4465
|
349 |
SDL_GetMouseState(int *x, int *y)
|
slouken@4465
|
350 |
{
|
slouken@5371
|
351 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@4465
|
352 |
|
slouken@4465
|
353 |
if (x) {
|
slouken@4465
|
354 |
*x = mouse->x;
|
slouken@4465
|
355 |
}
|
slouken@4465
|
356 |
if (y) {
|
slouken@4465
|
357 |
*y = mouse->y;
|
slouken@4465
|
358 |
}
|
slouken@4465
|
359 |
return mouse->buttonstate;
|
slouken@4465
|
360 |
}
|
slouken@4465
|
361 |
|
slouken@4465
|
362 |
Uint8
|
slouken@4465
|
363 |
SDL_GetRelativeMouseState(int *x, int *y)
|
slouken@4465
|
364 |
{
|
slouken@5371
|
365 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@4465
|
366 |
|
slouken@4465
|
367 |
if (x) {
|
slouken@4465
|
368 |
*x = mouse->xdelta;
|
slouken@4465
|
369 |
}
|
slouken@4465
|
370 |
if (y) {
|
slouken@4465
|
371 |
*y = mouse->ydelta;
|
slouken@4465
|
372 |
}
|
slouken@4465
|
373 |
mouse->xdelta = 0;
|
slouken@4465
|
374 |
mouse->ydelta = 0;
|
slouken@4465
|
375 |
return mouse->buttonstate;
|
slouken@4465
|
376 |
}
|
slouken@4465
|
377 |
|
slouken@4465
|
378 |
void
|
slouken@3685
|
379 |
SDL_WarpMouseInWindow(SDL_Window * window, int x, int y)
|
slouken@1895
|
380 |
{
|
slouken@5371
|
381 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
382 |
|
slouken@1895
|
383 |
if (mouse->WarpMouse) {
|
slouken@5371
|
384 |
mouse->WarpMouse(window, x, y);
|
slouken@1895
|
385 |
} else {
|
slouken@4484
|
386 |
SDL_SendMouseMotion(window, 0, x, y);
|
slouken@1895
|
387 |
}
|
slouken@0
|
388 |
}
|
slouken@0
|
389 |
|
slouken@4465
|
390 |
int
|
slouken@4465
|
391 |
SDL_SetRelativeMouseMode(SDL_bool enabled)
|
slouken@4465
|
392 |
{
|
slouken@5371
|
393 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@4465
|
394 |
|
slouken@5406
|
395 |
if (enabled == mouse->relative_mode) {
|
slouken@5406
|
396 |
return 0;
|
slouken@5406
|
397 |
}
|
slouken@5406
|
398 |
|
slouken@5406
|
399 |
if (!mouse->SetRelativeMouseMode) {
|
slouken@5406
|
400 |
SDL_Unsupported();
|
slouken@5406
|
401 |
return -1;
|
slouken@5406
|
402 |
}
|
slouken@5406
|
403 |
|
slouken@5406
|
404 |
if (mouse->SetRelativeMouseMode(enabled) < 0) {
|
slouken@5406
|
405 |
return -1;
|
slouken@5406
|
406 |
}
|
slouken@4465
|
407 |
|
slouken@4465
|
408 |
/* Set the relative mode */
|
slouken@4465
|
409 |
mouse->relative_mode = enabled;
|
slouken@4465
|
410 |
|
ghostunderscore@6302
|
411 |
if (enabled) {
|
ghostunderscore@6302
|
412 |
/* Save the expected mouse position */
|
ghostunderscore@6302
|
413 |
mouse->original_x = mouse->x;
|
ghostunderscore@6302
|
414 |
mouse->original_y = mouse->y;
|
ghostunderscore@6302
|
415 |
} else if (mouse->focus) {
|
slouken@4465
|
416 |
/* Restore the expected mouse position */
|
ghostunderscore@6302
|
417 |
SDL_WarpMouseInWindow(mouse->focus, mouse->original_x, mouse->original_y);
|
slouken@4465
|
418 |
}
|
slouken@4465
|
419 |
|
slouken@5406
|
420 |
/* Flush pending mouse motion */
|
slouken@5406
|
421 |
SDL_FlushEvent(SDL_MOUSEMOTION);
|
slouken@5406
|
422 |
|
slouken@4465
|
423 |
/* Update cursor visibility */
|
slouken@4465
|
424 |
SDL_SetCursor(NULL);
|
slouken@4465
|
425 |
|
slouken@4465
|
426 |
return 0;
|
slouken@4465
|
427 |
}
|
slouken@4465
|
428 |
|
slouken@4465
|
429 |
SDL_bool
|
slouken@4465
|
430 |
SDL_GetRelativeMouseMode()
|
slouken@4465
|
431 |
{
|
slouken@5371
|
432 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@4465
|
433 |
|
slouken@4465
|
434 |
return mouse->relative_mode;
|
slouken@4465
|
435 |
}
|
slouken@4465
|
436 |
|
slouken@1895
|
437 |
SDL_Cursor *
|
slouken@1895
|
438 |
SDL_CreateCursor(const Uint8 * data, const Uint8 * mask,
|
slouken@1895
|
439 |
int w, int h, int hot_x, int hot_y)
|
slouken@0
|
440 |
{
|
slouken@1895
|
441 |
SDL_Surface *surface;
|
slouken@1895
|
442 |
SDL_Cursor *cursor;
|
slouken@1895
|
443 |
int x, y;
|
slouken@1895
|
444 |
Uint32 *pixel;
|
slouken@4465
|
445 |
Uint8 datab = 0, maskb = 0;
|
slouken@1895
|
446 |
const Uint32 black = 0xFF000000;
|
slouken@1895
|
447 |
const Uint32 white = 0xFFFFFFFF;
|
slouken@1895
|
448 |
const Uint32 transparent = 0x00000000;
|
slouken@0
|
449 |
|
slouken@1895
|
450 |
/* Make sure the width is a multiple of 8 */
|
slouken@1895
|
451 |
w = ((w + 7) & ~7);
|
slouken@0
|
452 |
|
slouken@1895
|
453 |
/* Create the surface from a bitmap */
|
slouken@5473
|
454 |
surface = SDL_CreateRGBSurface(0, w, h, 32,
|
slouken@5473
|
455 |
0x00FF0000,
|
slouken@5473
|
456 |
0x0000FF00,
|
slouken@5473
|
457 |
0x000000FF,
|
slouken@5473
|
458 |
0xFF000000);
|
slouken@1895
|
459 |
if (!surface) {
|
slouken@1895
|
460 |
return NULL;
|
slouken@1895
|
461 |
}
|
slouken@1895
|
462 |
for (y = 0; y < h; ++y) {
|
slouken@1895
|
463 |
pixel = (Uint32 *) ((Uint8 *) surface->pixels + y * surface->pitch);
|
slouken@1895
|
464 |
for (x = 0; x < w; ++x) {
|
slouken@1895
|
465 |
if ((x % 8) == 0) {
|
slouken@1895
|
466 |
datab = *data++;
|
slouken@1895
|
467 |
maskb = *mask++;
|
slouken@1895
|
468 |
}
|
slouken@1895
|
469 |
if (maskb & 0x80) {
|
slouken@1895
|
470 |
*pixel++ = (datab & 0x80) ? black : white;
|
slouken@1895
|
471 |
} else {
|
slouken@1895
|
472 |
*pixel++ = (datab & 0x80) ? black : transparent;
|
slouken@1895
|
473 |
}
|
slouken@1895
|
474 |
datab <<= 1;
|
slouken@1895
|
475 |
maskb <<= 1;
|
slouken@1895
|
476 |
}
|
slouken@1895
|
477 |
}
|
slouken@0
|
478 |
|
slouken@5473
|
479 |
cursor = SDL_CreateColorCursor(surface, hot_x, hot_y);
|
slouken@5473
|
480 |
|
slouken@5473
|
481 |
SDL_FreeSurface(surface);
|
slouken@5473
|
482 |
|
slouken@5473
|
483 |
return cursor;
|
slouken@5473
|
484 |
}
|
slouken@5473
|
485 |
|
slouken@5473
|
486 |
SDL_Cursor *
|
slouken@5473
|
487 |
SDL_CreateColorCursor(SDL_Surface *surface, int hot_x, int hot_y)
|
slouken@5473
|
488 |
{
|
slouken@5473
|
489 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@5473
|
490 |
SDL_Surface *temp = NULL;
|
slouken@5473
|
491 |
SDL_Cursor *cursor;
|
slouken@5473
|
492 |
|
slouken@5473
|
493 |
if (!surface) {
|
slouken@5473
|
494 |
SDL_SetError("Passed NULL cursor surface");
|
slouken@5473
|
495 |
return NULL;
|
slouken@5473
|
496 |
}
|
slouken@5473
|
497 |
|
slouken@5473
|
498 |
if (!mouse->CreateCursor) {
|
slouken@5473
|
499 |
SDL_SetError("Cursors are not currently supported");
|
slouken@5473
|
500 |
return NULL;
|
slouken@5473
|
501 |
}
|
slouken@5473
|
502 |
|
slouken@5473
|
503 |
/* Sanity check the hot spot */
|
slouken@5473
|
504 |
if ((hot_x < 0) || (hot_y < 0) ||
|
slouken@5473
|
505 |
(hot_x >= surface->w) || (hot_y >= surface->h)) {
|
slouken@5473
|
506 |
SDL_SetError("Cursor hot spot doesn't lie within cursor");
|
slouken@5473
|
507 |
return NULL;
|
slouken@5473
|
508 |
}
|
slouken@5473
|
509 |
|
slouken@5473
|
510 |
if (surface->format->format != SDL_PIXELFORMAT_ARGB8888) {
|
slouken@5473
|
511 |
temp = SDL_ConvertSurfaceFormat(surface, SDL_PIXELFORMAT_ARGB8888, 0);
|
slouken@5473
|
512 |
if (!temp) {
|
slouken@5473
|
513 |
return NULL;
|
slouken@5473
|
514 |
}
|
slouken@5473
|
515 |
surface = temp;
|
slouken@5473
|
516 |
}
|
slouken@5473
|
517 |
|
slouken@1895
|
518 |
cursor = mouse->CreateCursor(surface, hot_x, hot_y);
|
slouken@1895
|
519 |
if (cursor) {
|
slouken@1895
|
520 |
cursor->next = mouse->cursors;
|
slouken@1895
|
521 |
mouse->cursors = cursor;
|
slouken@1895
|
522 |
}
|
slouken@0
|
523 |
|
slouken@5473
|
524 |
if (temp) {
|
slouken@5473
|
525 |
SDL_FreeSurface(temp);
|
slouken@5473
|
526 |
}
|
slouken@1895
|
527 |
|
slouken@1895
|
528 |
return cursor;
|
slouken@0
|
529 |
}
|
slouken@0
|
530 |
|
slouken@1895
|
531 |
/* SDL_SetCursor(NULL) can be used to force the cursor redraw,
|
slouken@1895
|
532 |
if this is desired for any reason. This is used when setting
|
slouken@1895
|
533 |
the video mode and when the SDL window gains the mouse focus.
|
slouken@1895
|
534 |
*/
|
slouken@1895
|
535 |
void
|
slouken@1895
|
536 |
SDL_SetCursor(SDL_Cursor * cursor)
|
slouken@1895
|
537 |
{
|
slouken@5371
|
538 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
539 |
|
slouken@1895
|
540 |
/* Set the new cursor */
|
slouken@1895
|
541 |
if (cursor) {
|
slouken@1895
|
542 |
/* Make sure the cursor is still valid for this mouse */
|
slouken@5405
|
543 |
if (cursor != mouse->def_cursor) {
|
slouken@5405
|
544 |
SDL_Cursor *found;
|
slouken@5405
|
545 |
for (found = mouse->cursors; found; found = found->next) {
|
slouken@5405
|
546 |
if (found == cursor) {
|
slouken@5405
|
547 |
break;
|
slouken@5405
|
548 |
}
|
slouken@1895
|
549 |
}
|
slouken@5405
|
550 |
if (!found) {
|
slouken@5405
|
551 |
SDL_SetError("Cursor not associated with the current mouse");
|
slouken@5405
|
552 |
return;
|
slouken@5405
|
553 |
}
|
slouken@1895
|
554 |
}
|
slouken@1895
|
555 |
mouse->cur_cursor = cursor;
|
slouken@1895
|
556 |
} else {
|
ghostunderscore@6301
|
557 |
if (mouse->focus) {
|
ghostunderscore@6301
|
558 |
cursor = mouse->cur_cursor;
|
ghostunderscore@6301
|
559 |
} else {
|
ghostunderscore@6301
|
560 |
cursor = mouse->def_cursor;
|
ghostunderscore@6301
|
561 |
}
|
slouken@1895
|
562 |
}
|
slouken@1895
|
563 |
|
slouken@1895
|
564 |
if (cursor && mouse->cursor_shown && !mouse->relative_mode) {
|
slouken@1895
|
565 |
if (mouse->ShowCursor) {
|
slouken@1895
|
566 |
mouse->ShowCursor(cursor);
|
slouken@1895
|
567 |
}
|
slouken@1895
|
568 |
} else {
|
slouken@1895
|
569 |
if (mouse->ShowCursor) {
|
slouken@1895
|
570 |
mouse->ShowCursor(NULL);
|
slouken@1895
|
571 |
}
|
slouken@1895
|
572 |
}
|
slouken@1895
|
573 |
}
|
slouken@1895
|
574 |
|
slouken@1895
|
575 |
SDL_Cursor *
|
slouken@1895
|
576 |
SDL_GetCursor(void)
|
slouken@1895
|
577 |
{
|
slouken@5371
|
578 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
579 |
|
slouken@1895
|
580 |
if (!mouse) {
|
slouken@1895
|
581 |
return NULL;
|
slouken@1895
|
582 |
}
|
slouken@1895
|
583 |
return mouse->cur_cursor;
|
slouken@1895
|
584 |
}
|
slouken@1895
|
585 |
|
slouken@1895
|
586 |
void
|
slouken@1895
|
587 |
SDL_FreeCursor(SDL_Cursor * cursor)
|
slouken@1895
|
588 |
{
|
slouken@5371
|
589 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
590 |
SDL_Cursor *curr, *prev;
|
slouken@1895
|
591 |
|
slouken@1895
|
592 |
if (!cursor) {
|
slouken@1895
|
593 |
return;
|
slouken@1895
|
594 |
}
|
slouken@1895
|
595 |
|
slouken@1895
|
596 |
if (cursor == mouse->def_cursor) {
|
slouken@1895
|
597 |
return;
|
slouken@1895
|
598 |
}
|
slouken@1895
|
599 |
if (cursor == mouse->cur_cursor) {
|
slouken@1895
|
600 |
SDL_SetCursor(mouse->def_cursor);
|
slouken@1895
|
601 |
}
|
slouken@1895
|
602 |
|
slouken@1895
|
603 |
for (prev = NULL, curr = mouse->cursors; curr;
|
slouken@1895
|
604 |
prev = curr, curr = curr->next) {
|
slouken@1895
|
605 |
if (curr == cursor) {
|
slouken@1895
|
606 |
if (prev) {
|
slouken@1895
|
607 |
prev->next = curr->next;
|
slouken@1895
|
608 |
} else {
|
slouken@1895
|
609 |
mouse->cursors = curr->next;
|
slouken@1895
|
610 |
}
|
slouken@1895
|
611 |
|
slouken@1895
|
612 |
if (mouse->FreeCursor) {
|
slouken@1895
|
613 |
mouse->FreeCursor(curr);
|
slouken@1895
|
614 |
}
|
slouken@1895
|
615 |
return;
|
slouken@1895
|
616 |
}
|
slouken@1895
|
617 |
}
|
slouken@1895
|
618 |
}
|
slouken@1895
|
619 |
|
slouken@1895
|
620 |
int
|
slouken@1895
|
621 |
SDL_ShowCursor(int toggle)
|
slouken@1895
|
622 |
{
|
slouken@5371
|
623 |
SDL_Mouse *mouse = SDL_GetMouse();
|
slouken@1895
|
624 |
SDL_bool shown;
|
slouken@1895
|
625 |
|
slouken@1895
|
626 |
if (!mouse) {
|
slouken@1895
|
627 |
return 0;
|
slouken@1895
|
628 |
}
|
slouken@1895
|
629 |
|
slouken@1895
|
630 |
shown = mouse->cursor_shown;
|
slouken@1895
|
631 |
if (toggle >= 0) {
|
slouken@1895
|
632 |
if (toggle) {
|
slouken@1895
|
633 |
mouse->cursor_shown = SDL_TRUE;
|
slouken@1895
|
634 |
} else {
|
slouken@1895
|
635 |
mouse->cursor_shown = SDL_FALSE;
|
slouken@1895
|
636 |
}
|
slouken@1895
|
637 |
if (mouse->cursor_shown != shown) {
|
slouken@1895
|
638 |
SDL_SetCursor(NULL);
|
slouken@1895
|
639 |
}
|
slouken@1895
|
640 |
}
|
slouken@1895
|
641 |
return shown;
|
slouken@1895
|
642 |
}
|
slouken@1895
|
643 |
|
slouken@1895
|
644 |
/* vi: set ts=4 sw=4 expandtab: */
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