SDL_DirectFB_WM.c (12839B)
1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> 4 5 This software is provided 'as-is', without any express or implied 6 warranty. In no event will the authors be held liable for any damages 7 arising from the use of this software. 8 9 Permission is granted to anyone to use this software for any purpose, 10 including commercial applications, and to alter it and redistribute it 11 freely, subject to the following restrictions: 12 13 1. The origin of this software must not be misrepresented; you must not 14 claim that you wrote the original software. If you use this software 15 in a product, an acknowledgment in the product documentation would be 16 appreciated but is not required. 17 2. Altered source versions must be plainly marked as such, and must not be 18 misrepresented as being the original software. 19 3. This notice may not be removed or altered from any source distribution. 20*/ 21#include "../../SDL_internal.h" 22 23#if SDL_VIDEO_DRIVER_DIRECTFB 24 25#include "SDL_DirectFB_video.h" 26#include "SDL_DirectFB_window.h" 27 28#include "../../events/SDL_windowevents_c.h" 29 30#define COLOR_EXPAND(col) col.r, col.g, col.b, col.a 31 32static DFB_Theme theme_std = { 33 4, 4, 8, 8, 34 {255, 200, 200, 200}, 35 24, 36 {255, 0, 0, 255}, 37 16, 38 {255, 255, 255, 255}, 39 "/usr/share/fonts/truetype/freefont/FreeSans.ttf", 40 {255, 255, 0, 0}, 41 {255, 255, 255, 0}, 42}; 43 44static DFB_Theme theme_none = { 45 0, 0, 0, 0, 46 {0, 0, 0, 0}, 47 0, 48 {0, 0, 0, 0}, 49 0, 50 {0, 0, 0, 0}, 51 NULL 52}; 53 54static void 55DrawTriangle(IDirectFBSurface * s, int down, int x, int y, int w) 56{ 57 int x1, x2, x3; 58 int y1, y2, y3; 59 60 if (down) { 61 x1 = x + w / 2; 62 x2 = x; 63 x3 = x + w; 64 y1 = y + w; 65 y2 = y; 66 y3 = y; 67 } else { 68 x1 = x + w / 2; 69 x2 = x; 70 x3 = x + w; 71 y1 = y; 72 y2 = y + w; 73 y3 = y + w; 74 } 75 s->FillTriangle(s, x1, y1, x2, y2, x3, y3); 76} 77 78static void 79LoadFont(_THIS, SDL_Window * window) 80{ 81 SDL_DFB_DEVICEDATA(_this); 82 SDL_DFB_WINDOWDATA(window); 83 84 if (windata->font != NULL) { 85 SDL_DFB_RELEASE(windata->font); 86 windata->font = NULL; 87 SDL_DFB_CHECK(windata->window_surface->SetFont(windata->window_surface, windata->font)); 88 } 89 90 if (windata->theme.font != NULL) 91 { 92 DFBFontDescription fdesc; 93 94 SDL_zero(fdesc); 95 fdesc.flags = DFDESC_HEIGHT; 96 fdesc.height = windata->theme.font_size; 97 SDL_DFB_CHECK(devdata-> 98 dfb->CreateFont(devdata->dfb, windata->theme.font, 99 &fdesc, &windata->font)); 100 SDL_DFB_CHECK(windata->window_surface->SetFont(windata->window_surface, windata->font)); 101 } 102} 103 104static void 105DrawCraption(_THIS, IDirectFBSurface * s, int x, int y, char *text) 106{ 107 DFBSurfaceTextFlags flags; 108 109 flags = DSTF_CENTER | DSTF_TOP; 110 111 s->DrawString(s, text, -1, x, y, flags); 112} 113 114void 115DirectFB_WM_RedrawLayout(_THIS, SDL_Window * window) 116{ 117 SDL_DFB_WINDOWDATA(window); 118 IDirectFBSurface *s = windata->window_surface; 119 DFB_Theme *t = &windata->theme; 120 int i; 121 int d = (t->caption_size - t->font_size) / 2; 122 int x, y, w; 123 124 125 if (!windata->is_managed || (window->flags & SDL_WINDOW_FULLSCREEN)) 126 return; 127 128 SDL_DFB_CHECK(s->SetSrcBlendFunction(s, DSBF_ONE)); 129 SDL_DFB_CHECK(s->SetDstBlendFunction(s, DSBF_ZERO)); 130 SDL_DFB_CHECK(s->SetDrawingFlags(s, DSDRAW_NOFX)); 131 SDL_DFB_CHECK(s->SetBlittingFlags(s, DSBLIT_NOFX)); 132 133 LoadFont(_this, window); 134 /* s->SetDrawingFlags(s, DSDRAW_BLEND); */ 135 s->SetColor(s, COLOR_EXPAND(t->frame_color)); 136 /* top */ 137 for (i = 0; i < t->top_size; i++) 138 s->DrawLine(s, 0, i, windata->size.w, i); 139 /* bottom */ 140 for (i = windata->size.h - t->bottom_size; i < windata->size.h; i++) 141 s->DrawLine(s, 0, i, windata->size.w, i); 142 /* left */ 143 for (i = 0; i < t->left_size; i++) 144 s->DrawLine(s, i, 0, i, windata->size.h); 145 /* right */ 146 for (i = windata->size.w - t->right_size; i < windata->size.w; i++) 147 s->DrawLine(s, i, 0, i, windata->size.h); 148 /* Caption */ 149 s->SetColor(s, COLOR_EXPAND(t->caption_color)); 150 s->FillRectangle(s, t->left_size, t->top_size, windata->client.w, 151 t->caption_size); 152 /* Close Button */ 153 w = t->caption_size; 154 x = windata->size.w - t->right_size - w + d; 155 y = t->top_size + d; 156 s->SetColor(s, COLOR_EXPAND(t->close_color)); 157 DrawTriangle(s, 1, x, y, w - 2 * d); 158 /* Max Button */ 159 s->SetColor(s, COLOR_EXPAND(t->max_color)); 160 DrawTriangle(s, window->flags & SDL_WINDOW_MAXIMIZED ? 1 : 0, x - w, 161 y, w - 2 * d); 162 163 /* Caption */ 164 if (window->title) { 165 s->SetColor(s, COLOR_EXPAND(t->font_color)); 166 DrawCraption(_this, s, (x - w) / 2, t->top_size + d, window->title); 167 } 168 /* Icon */ 169 if (windata->icon) { 170 DFBRectangle dr; 171 172 dr.x = t->left_size + d; 173 dr.y = t->top_size + d; 174 dr.w = w - 2 * d; 175 dr.h = w - 2 * d; 176 s->SetBlittingFlags(s, DSBLIT_BLEND_ALPHACHANNEL); 177 178 s->StretchBlit(s, windata->icon, NULL, &dr); 179 } 180 windata->wm_needs_redraw = 0; 181} 182 183DFBResult 184DirectFB_WM_GetClientSize(_THIS, SDL_Window * window, int *cw, int *ch) 185{ 186 SDL_DFB_WINDOWDATA(window); 187 IDirectFBWindow *dfbwin = windata->dfbwin; 188 189 SDL_DFB_CHECK(dfbwin->GetSize(dfbwin, cw, ch)); 190 dfbwin->GetSize(dfbwin, cw, ch); 191 *cw -= windata->theme.left_size + windata->theme.right_size; 192 *ch -= 193 windata->theme.top_size + windata->theme.caption_size + 194 windata->theme.bottom_size; 195 return DFB_OK; 196} 197 198void 199DirectFB_WM_AdjustWindowLayout(SDL_Window * window, int flags, int w, int h) 200{ 201 SDL_DFB_WINDOWDATA(window); 202 203 if (!windata->is_managed) 204 windata->theme = theme_none; 205 else if (flags & SDL_WINDOW_BORDERLESS) 206 /* desc.caps |= DWCAPS_NODECORATION;) */ 207 windata->theme = theme_none; 208 else if (flags & SDL_WINDOW_FULLSCREEN) { 209 windata->theme = theme_none; 210 } else if (flags & SDL_WINDOW_MAXIMIZED) { 211 windata->theme = theme_std; 212 windata->theme.left_size = 0; 213 windata->theme.right_size = 0; 214 windata->theme.top_size = 0; 215 windata->theme.bottom_size = 0; 216 } else { 217 windata->theme = theme_std; 218 } 219 220 windata->client.x = windata->theme.left_size; 221 windata->client.y = windata->theme.top_size + windata->theme.caption_size; 222 windata->client.w = w; 223 windata->client.h = h; 224 windata->size.w = 225 w + windata->theme.left_size + windata->theme.right_size; 226 windata->size.h = 227 h + windata->theme.top_size + 228 windata->theme.caption_size + windata->theme.bottom_size; 229} 230 231 232enum 233{ 234 WM_POS_NONE = 0x00, 235 WM_POS_CAPTION = 0x01, 236 WM_POS_CLOSE = 0x02, 237 WM_POS_MAX = 0x04, 238 WM_POS_LEFT = 0x08, 239 WM_POS_RIGHT = 0x10, 240 WM_POS_TOP = 0x20, 241 WM_POS_BOTTOM = 0x40, 242}; 243 244static int 245WMIsClient(DFB_WindowData * p, int x, int y) 246{ 247 x -= p->client.x; 248 y -= p->client.y; 249 if (x < 0 || y < 0) 250 return 0; 251 if (x >= p->client.w || y >= p->client.h) 252 return 0; 253 return 1; 254} 255 256static int 257WMPos(DFB_WindowData * p, int x, int y) 258{ 259 int pos = WM_POS_NONE; 260 261 if (!WMIsClient(p, x, y)) { 262 if (y < p->theme.top_size) { 263 pos |= WM_POS_TOP; 264 } else if (y < p->client.y) { 265 if (x < 266 p->size.w - p->theme.right_size - 2 * p->theme.caption_size) { 267 pos |= WM_POS_CAPTION; 268 } else if (x < 269 p->size.w - p->theme.right_size - 270 p->theme.caption_size) { 271 pos |= WM_POS_MAX; 272 } else { 273 pos |= WM_POS_CLOSE; 274 } 275 } else if (y >= p->size.h - p->theme.bottom_size) { 276 pos |= WM_POS_BOTTOM; 277 } 278 if (x < p->theme.left_size) { 279 pos |= WM_POS_LEFT; 280 } else if (x >= p->size.w - p->theme.right_size) { 281 pos |= WM_POS_RIGHT; 282 } 283 } 284 return pos; 285} 286 287int 288DirectFB_WM_ProcessEvent(_THIS, SDL_Window * window, DFBWindowEvent * evt) 289{ 290 SDL_DFB_DEVICEDATA(_this); 291 SDL_DFB_WINDOWDATA(window); 292 DFB_WindowData *gwindata = ((devdata->grabbed_window) ? (DFB_WindowData *) ((devdata->grabbed_window)->driverdata) : NULL); 293 IDirectFBWindow *dfbwin = windata->dfbwin; 294 DFBWindowOptions wopts; 295 296 if (!windata->is_managed) 297 return 0; 298 299 SDL_DFB_CHECK(dfbwin->GetOptions(dfbwin, &wopts)); 300 301 switch (evt->type) { 302 case DWET_BUTTONDOWN: 303 if (evt->buttons & DIBM_LEFT) { 304 int pos = WMPos(windata, evt->x, evt->y); 305 switch (pos) { 306 case WM_POS_NONE: 307 return 0; 308 case WM_POS_CLOSE: 309 windata->wm_grab = WM_POS_NONE; 310 SDL_SendWindowEvent(window, SDL_WINDOWEVENT_CLOSE, 0, 311 0); 312 return 1; 313 case WM_POS_MAX: 314 windata->wm_grab = WM_POS_NONE; 315 if (window->flags & SDL_WINDOW_MAXIMIZED) { 316 SDL_RestoreWindow(window); 317 } else { 318 SDL_MaximizeWindow(window); 319 } 320 return 1; 321 case WM_POS_CAPTION: 322 if (!(wopts & DWOP_KEEP_STACKING)) { 323 DirectFB_RaiseWindow(_this, window); 324 } 325 if (window->flags & SDL_WINDOW_MAXIMIZED) 326 return 1; 327 /* fall through */ 328 default: 329 windata->wm_grab = pos; 330 if (gwindata != NULL) 331 SDL_DFB_CHECK(gwindata->dfbwin->UngrabPointer(gwindata->dfbwin)); 332 SDL_DFB_CHECK(dfbwin->GrabPointer(dfbwin)); 333 windata->wm_lastx = evt->cx; 334 windata->wm_lasty = evt->cy; 335 } 336 } 337 return 1; 338 case DWET_BUTTONUP: 339 if (!windata->wm_grab) 340 return 0; 341 if (!(evt->buttons & DIBM_LEFT)) { 342 if (windata->wm_grab & (WM_POS_RIGHT | WM_POS_BOTTOM)) { 343 int dx = evt->cx - windata->wm_lastx; 344 int dy = evt->cy - windata->wm_lasty; 345 346 if (!(wopts & DWOP_KEEP_SIZE)) { 347 int cw, ch; 348 if ((windata->wm_grab & (WM_POS_BOTTOM | WM_POS_RIGHT)) == WM_POS_BOTTOM) 349 dx = 0; 350 else if ((windata->wm_grab & (WM_POS_BOTTOM | WM_POS_RIGHT)) == WM_POS_RIGHT) 351 dy = 0; 352 SDL_DFB_CHECK(dfbwin->GetSize(dfbwin, &cw, &ch)); 353 354 /* necessary to trigger an event - ugly */ 355 SDL_DFB_CHECK(dfbwin->DisableEvents(dfbwin, DWET_ALL)); 356 SDL_DFB_CHECK(dfbwin->Resize(dfbwin, cw + dx + 1, ch + dy)); 357 SDL_DFB_CHECK(dfbwin->EnableEvents(dfbwin, DWET_ALL)); 358 359 SDL_DFB_CHECK(dfbwin->Resize(dfbwin, cw + dx, ch + dy)); 360 } 361 } 362 SDL_DFB_CHECK(dfbwin->UngrabPointer(dfbwin)); 363 if (gwindata != NULL) 364 SDL_DFB_CHECK(gwindata->dfbwin->GrabPointer(gwindata->dfbwin)); 365 windata->wm_grab = WM_POS_NONE; 366 return 1; 367 } 368 break; 369 case DWET_MOTION: 370 if (!windata->wm_grab) 371 return 0; 372 if (evt->buttons & DIBM_LEFT) { 373 int dx = evt->cx - windata->wm_lastx; 374 int dy = evt->cy - windata->wm_lasty; 375 376 if (windata->wm_grab & WM_POS_CAPTION) { 377 if (!(wopts & DWOP_KEEP_POSITION)) 378 SDL_DFB_CHECK(dfbwin->Move(dfbwin, dx, dy)); 379 } 380 if (windata->wm_grab & (WM_POS_RIGHT | WM_POS_BOTTOM)) { 381 if (!(wopts & DWOP_KEEP_SIZE)) { 382 int cw, ch; 383 384 /* Make sure all events are disabled for this operation ! */ 385 SDL_DFB_CHECK(dfbwin->DisableEvents(dfbwin, DWET_ALL)); 386 387 if ((windata->wm_grab & (WM_POS_BOTTOM | WM_POS_RIGHT)) == WM_POS_BOTTOM) 388 dx = 0; 389 else if ((windata->wm_grab & (WM_POS_BOTTOM | WM_POS_RIGHT)) == WM_POS_RIGHT) 390 dy = 0; 391 392 SDL_DFB_CHECK(dfbwin->GetSize(dfbwin, &cw, &ch)); 393 SDL_DFB_CHECK(dfbwin->Resize(dfbwin, cw + dx, ch + dy)); 394 395 SDL_DFB_CHECK(dfbwin->EnableEvents(dfbwin, DWET_ALL)); 396 } 397 } 398 windata->wm_lastx = evt->cx; 399 windata->wm_lasty = evt->cy; 400 return 1; 401 } 402 break; 403 case DWET_KEYDOWN: 404 break; 405 case DWET_KEYUP: 406 break; 407 default: 408 ; 409 } 410 return 0; 411} 412 413#endif /* SDL_VIDEO_DRIVER_DIRECTFB */