| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #include "SDL_mouse.h" |
| 25 | #include "../../events/SDL_events_c.h" |
| 26 | #include "../SDL_cursor_c.h" |
| 27 | #include "SDL_ph_mouse_c.h" |
| 28 | |
| 29 | struct WMcursor |
| 30 | { |
| 31 | PhCursorDef_t *ph_cursor ; |
| 32 | }; |
| 33 | |
| 34 | void ph_FreeWMCursor(_THIS, WMcursor *cursor) |
| 35 | { |
| 36 | if (window != NULL) |
| 37 | { |
| 38 | SDL_Lock_EventThread(); |
| 39 | |
| 40 | if (PtSetResource(window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0) < 0) |
| 41 | { |
| 42 | /* TODO: output error msg */ |
| 43 | } |
| 44 | |
| 45 | SDL_Unlock_EventThread(); |
| 46 | } |
| 47 | |
| 48 | SDL_free(cursor); |
| 49 | } |
| 50 | |
| 51 | WMcursor *ph_CreateWMCursor(_THIS, Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) |
| 52 | { |
| 53 | WMcursor* cursor; |
| 54 | int clen, i; |
| 55 | unsigned char bit, databit, maskbit; |
| 56 | |
| 57 | /* Allocate and initialize the cursor memory */ |
| 58 | if ((cursor = (WMcursor*)SDL_malloc(sizeof(WMcursor))) == NULL) |
| 59 | { |
| 60 | SDL_OutOfMemory(); |
| 61 | return(NULL); |
| 62 | } |
| 63 | SDL_memset(cursor,0,sizeof(WMcursor)); |
| 64 | |
| 65 | cursor->ph_cursor = (PhCursorDef_t *) SDL_malloc(sizeof(PhCursorDef_t) + 32*4*2); |
| 66 | |
| 67 | if (cursor->ph_cursor == NULL) |
| 68 | { |
| 69 | SDL_SetError("ph_CreateWMCursor(): cursor malloc failed !\n"); |
| 70 | return NULL; |
| 71 | } |
| 72 | |
| 73 | SDL_memset(cursor->ph_cursor,0,(sizeof(PhCursorDef_t) + 32*4*2)); |
| 74 | |
| 75 | cursor->ph_cursor->hdr.type =Ph_RDATA_CURSOR; |
| 76 | cursor->ph_cursor->size1.x = (short)w; |
| 77 | cursor->ph_cursor->size1.y = (short)h; |
| 78 | cursor->ph_cursor->offset1.x = (short)hot_x; |
| 79 | cursor->ph_cursor->offset1.y = (short)hot_y; |
| 80 | cursor->ph_cursor->bytesperline1 = (char)w/8; |
| 81 | cursor->ph_cursor->color1 = Pg_WHITE; |
| 82 | cursor->ph_cursor->size2.x = (short)w; |
| 83 | cursor->ph_cursor->size2.y = (short)h; |
| 84 | cursor->ph_cursor->offset2.x = (short)hot_x; |
| 85 | cursor->ph_cursor->offset2.y = (short)hot_y; |
| 86 | cursor->ph_cursor->bytesperline2 = (char)w/8; |
| 87 | cursor->ph_cursor->color2 = Pg_BLACK; |
| 88 | |
| 89 | clen = (w/8)*h; |
| 90 | |
| 91 | /* Copy the mask and the data to different bitmap planes */ |
| 92 | for (i=0; i<clen; ++i) |
| 93 | { |
| 94 | for (bit = 0; bit < 8; bit++) |
| 95 | { |
| 96 | databit = data[i] & (1 << bit); |
| 97 | maskbit = mask[i] & (1 << bit); |
| 98 | |
| 99 | cursor->ph_cursor->images[i] |= (databit == 0) ? maskbit : 0; |
| 100 | /* If the databit != 0, treat it as a black pixel and |
| 101 | * ignore the maskbit (can't do an inverted color) */ |
| 102 | cursor->ph_cursor->images[i+clen] |= databit; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | /* #bytes following the hdr struct */ |
| 107 | cursor->ph_cursor->hdr.len =sizeof(PhCursorDef_t) + clen*2 - sizeof(PhRegionDataHdr_t); |
| 108 | |
| 109 | return (cursor); |
| 110 | } |
| 111 | |
| 112 | PhCursorDef_t ph_GetWMPhCursor(WMcursor *cursor) |
| 113 | { |
| 114 | return (*cursor->ph_cursor); |
| 115 | } |
| 116 | |
| 117 | int ph_ShowWMCursor(_THIS, WMcursor* cursor) |
| 118 | { |
| 119 | PtArg_t args[3]; |
| 120 | int nargs = 0; |
| 121 | |
| 122 | /* Don't do anything if the display is gone */ |
| 123 | if (window == NULL) |
| 124 | { |
| 125 | return (0); |
| 126 | } |
| 127 | |
| 128 | /* looks like photon can't draw mouse cursor in direct mode */ |
| 129 | if ((this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) |
| 130 | { |
| 131 | /* disable the fake mouse in the fullscreen OpenGL mode */ |
| 132 | if ((this->screen->flags & SDL_OPENGL) == SDL_OPENGL) |
| 133 | { |
| 134 | cursor=NULL; |
| 135 | } |
| 136 | else |
| 137 | { |
| 138 | return (0); |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | /* Set the photon cursor, or blank if cursor is NULL */ |
| 143 | if (cursor!=NULL) |
| 144 | { |
| 145 | PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0); |
| 146 | /* Could set next to any PgColor_t value */ |
| 147 | PtSetArg(&args[1], Pt_ARG_CURSOR_COLOR, Ph_CURSOR_DEFAULT_COLOR , 0); |
| 148 | PtSetArg(&args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t))); |
| 149 | nargs = 3; |
| 150 | } |
| 151 | else /* Ph_CURSOR_NONE */ |
| 152 | { |
| 153 | PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_NONE, 0); |
| 154 | nargs = 1; |
| 155 | } |
| 156 | |
| 157 | SDL_Lock_EventThread(); |
| 158 | |
| 159 | if (PtSetResources(window, nargs, args) < 0 ) |
| 160 | { |
| 161 | return (0); |
| 162 | } |
| 163 | |
| 164 | SDL_Unlock_EventThread(); |
| 165 | |
| 166 | return (1); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y) |
| 171 | { |
| 172 | short abs_x, abs_y; |
| 173 | |
| 174 | SDL_Lock_EventThread(); |
| 175 | PtGetAbsPosition( window, &abs_x, &abs_y ); |
| 176 | PhMoveCursorAbs( PhInputGroup(NULL), x + abs_x, y + abs_y ); |
| 177 | SDL_Unlock_EventThread(); |
| 178 | } |
| 179 | |
| 180 | |
| 181 | void ph_CheckMouseMode(_THIS) |
| 182 | { |
| 183 | /* If the mouse is hidden and input is grabbed, we use relative mode */ |
| 184 | if ( !(SDL_cursorstate & CURSOR_VISIBLE) && (this->input_grab != SDL_GRAB_OFF)) |
| 185 | { |
| 186 | mouse_relative = 1; |
| 187 | } |
| 188 | else |
| 189 | { |
| 190 | mouse_relative = 0; |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | |
| 195 | void ph_UpdateMouse(_THIS) |
| 196 | { |
| 197 | PhCursorInfo_t phcursor; |
| 198 | short abs_x; |
| 199 | short abs_y; |
| 200 | |
| 201 | /* Lock the event thread, in multi-threading environments */ |
| 202 | SDL_Lock_EventThread(); |
| 203 | |
| 204 | /* synchronizing photon mouse cursor position and SDL mouse position, if cursor appears over window. */ |
| 205 | PtGetAbsPosition(window, &abs_x, &abs_y); |
| 206 | PhQueryCursor(PhInputGroup(NULL), &phcursor); |
| 207 | if (((phcursor.pos.x >= abs_x) && (phcursor.pos.x <= abs_x + this->screen->w)) && |
| 208 | ((phcursor.pos.y >= abs_y) && (phcursor.pos.y <= abs_y + this->screen->h))) |
| 209 | { |
| 210 | SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); |
| 211 | SDL_PrivateMouseMotion(0, 0, phcursor.pos.x-abs_x, phcursor.pos.y-abs_y); |
| 212 | } |
| 213 | else |
| 214 | { |
| 215 | SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); |
| 216 | } |
| 217 | |
| 218 | /* Unlock the event thread, in multi-threading environments */ |
| 219 | SDL_Unlock_EventThread(); |
| 220 | } |