mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-17 05:44:08 -07:00
b1c4e29ac8
NOTE: requires update-workspaces and may require correction of some modded actors/scenarios This was SVN commit r16438.
142 lines
4.2 KiB
C++
142 lines
4.2 KiB
C++
/* Copyright (c) 2012 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "precompiled.h"
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#include "lib/sysdep/cursor.h"
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#include "lib/sysdep/gfx.h"
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#include "lib/sysdep/os/win/win.h"
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#include "lib/sysdep/os/win/wutil.h"
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static sys_cursor cursor_from_HICON(HICON hIcon)
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{
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return (sys_cursor)(uintptr_t)hIcon;
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}
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static sys_cursor cursor_from_HCURSOR(HCURSOR hCursor)
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{
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return (sys_cursor)(uintptr_t)hCursor;
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}
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static HICON HICON_from_cursor(sys_cursor cursor)
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{
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return (HICON)(uintptr_t)cursor;
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}
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static HCURSOR HCURSOR_from_cursor(sys_cursor cursor)
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{
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return (HCURSOR)(uintptr_t)cursor;
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}
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static Status sys_cursor_create_common(int w, int h, void* bgra_img, void* mask_img, int hx, int hy, sys_cursor* cursor)
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{
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*cursor = 0;
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// MSDN says selecting this HBITMAP into a DC is slower since we use
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// CreateBitmap; bpp/format must be checked against those of the DC.
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// this is the simplest way and we don't care about slight performance
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// differences because this is typically only called once.
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HBITMAP hbmColor = CreateBitmap(w, h, 1, 32, bgra_img);
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// CreateIconIndirect doesn't access this; we just need to pass
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// an empty bitmap.
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HBITMAP hbmMask = CreateBitmap(w, h, 1, 1, mask_img);
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// create the cursor (really an icon; they differ only in
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// fIcon and the hotspot definitions).
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ICONINFO ii;
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ii.fIcon = FALSE; // cursor
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ii.xHotspot = (DWORD)hx;
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ii.yHotspot = (DWORD)hy;
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ii.hbmMask = hbmMask;
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ii.hbmColor = hbmColor;
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HICON hIcon = CreateIconIndirect(&ii);
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// CreateIconIndirect makes copies, so we no longer need these.
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DeleteObject(hbmMask);
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DeleteObject(hbmColor);
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if(!wutil_IsValidHandle(hIcon))
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WARN_RETURN(ERR::FAIL);
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*cursor = cursor_from_HICON(hIcon);
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return INFO::OK;
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}
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Status sys_cursor_create(int w, int h, void* bgra_img, int hx, int hy, sys_cursor* cursor)
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{
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// alpha-blended cursors do not work on a 16-bit display
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// (they get drawn as a black square), so refuse to load the
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// cursor in that case
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int bpp = 0;
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RETURN_STATUS_IF_ERR(gfx::GetVideoMode(NULL, NULL, &bpp, NULL));
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if (bpp <= 16)
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return ERR::FAIL;
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return sys_cursor_create_common(w, h, bgra_img, NULL, hx, hy, cursor);
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}
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Status sys_cursor_create_empty(sys_cursor* cursor)
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{
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// the mask gets ignored on 32-bit displays, but is used on 16-bit displays;
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// setting it to 0xFF makes the cursor invisible (though I'm not quite
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// sure why it's that way round)
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u8 bgra_img[] = {0, 0, 0, 0};
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u8 mask_img[] = {0xFF};
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return sys_cursor_create_common(1, 1, bgra_img, mask_img, 0, 0, cursor);
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}
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Status sys_cursor_set(sys_cursor cursor)
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{
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// restore default cursor.
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if(!cursor)
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cursor = cursor_from_HCURSOR(LoadCursor(0, MAKEINTRESOURCE(IDC_ARROW)));
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(void)SetCursor(HCURSOR_from_cursor(cursor));
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// return value (previous cursor) is useless.
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return INFO::OK;
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}
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Status sys_cursor_free(sys_cursor cursor)
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{
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// bail now to prevent potential confusion below; there's nothing to do.
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if(!cursor)
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return INFO::OK;
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// if the cursor being freed is active, restore the default arrow
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// (just for safety).
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if(cursor_from_HCURSOR(GetCursor()) == cursor)
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WARN_IF_ERR(sys_cursor_set(0));
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if(!DestroyIcon(HICON_from_cursor(cursor)))
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WARN_RETURN(StatusFromWin());
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return INFO::OK;
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}
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Status sys_cursor_reset()
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{
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return INFO::OK;
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}
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