| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: dnd.cpp |
| 3 | // Purpose: Drag and drop sample |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #ifdef __BORLANDC__ |
| 15 | #pragma hdrstop |
| 16 | #endif |
| 17 | |
| 18 | #ifndef WX_PRECOMP |
| 19 | #include "wx/wx.h" |
| 20 | #endif |
| 21 | |
| 22 | #if !wxUSE_DRAG_AND_DROP |
| 23 | #error This sample requires drag and drop support in the library |
| 24 | #endif |
| 25 | |
| 26 | // under Windows we also support data transfer of metafiles as an extra bonus, |
| 27 | // but they're not available under other platforms |
| 28 | #ifdef __WINDOWS__ |
| 29 | #define USE_METAFILES |
| 30 | #endif // Windows |
| 31 | |
| 32 | #include "wx/intl.h" |
| 33 | #include "wx/log.h" |
| 34 | |
| 35 | #include "wx/dnd.h" |
| 36 | #include "wx/dirdlg.h" |
| 37 | #include "wx/filedlg.h" |
| 38 | #include "wx/image.h" |
| 39 | #include "wx/clipbrd.h" |
| 40 | #include "wx/colordlg.h" |
| 41 | #include "wx/resource.h" |
| 42 | |
| 43 | #ifdef USE_METAFILES |
| 44 | #include "wx/metafile.h" |
| 45 | #endif // Windows |
| 46 | |
| 47 | #if defined(__WXGTK__) || defined(__WXMOTIF__) |
| 48 | #include "mondrian.xpm" |
| 49 | |
| 50 | #include "dnd_copy.xpm" |
| 51 | #include "dnd_move.xpm" |
| 52 | #include "dnd_none.xpm" |
| 53 | #endif |
| 54 | |
| 55 | // ---------------------------------------------------------------------------- |
| 56 | // Derive two simple classes which just put in the listbox the strings (text or |
| 57 | // file names) we drop on them |
| 58 | // ---------------------------------------------------------------------------- |
| 59 | |
| 60 | class DnDText : public wxTextDropTarget |
| 61 | { |
| 62 | public: |
| 63 | DnDText(wxListBox *pOwner) { m_pOwner = pOwner; } |
| 64 | |
| 65 | virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text); |
| 66 | |
| 67 | private: |
| 68 | wxListBox *m_pOwner; |
| 69 | }; |
| 70 | |
| 71 | class DnDFile : public wxFileDropTarget |
| 72 | { |
| 73 | public: |
| 74 | DnDFile(wxListBox *pOwner) { m_pOwner = pOwner; } |
| 75 | |
| 76 | virtual bool OnDropFiles(wxCoord x, wxCoord y, |
| 77 | const wxArrayString& filenames); |
| 78 | |
| 79 | private: |
| 80 | wxListBox *m_pOwner; |
| 81 | }; |
| 82 | |
| 83 | // ---------------------------------------------------------------------------- |
| 84 | // Define a new application type |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | |
| 87 | class DnDApp : public wxApp |
| 88 | { |
| 89 | public: |
| 90 | virtual bool OnInit(); |
| 91 | }; |
| 92 | |
| 93 | IMPLEMENT_APP(DnDApp); |
| 94 | |
| 95 | // ---------------------------------------------------------------------------- |
| 96 | // Define canvas class to show a bitmap |
| 97 | // ---------------------------------------------------------------------------- |
| 98 | |
| 99 | class DnDCanvasBitmap : public wxScrolledWindow |
| 100 | { |
| 101 | public: |
| 102 | DnDCanvasBitmap(wxWindow *parent) : wxScrolledWindow(parent) { } |
| 103 | |
| 104 | void SetBitmap(const wxBitmap& bitmap) |
| 105 | { |
| 106 | m_bitmap = bitmap; |
| 107 | |
| 108 | SetScrollbars(10, 10, |
| 109 | m_bitmap.GetWidth() / 10, m_bitmap.GetHeight() / 10); |
| 110 | |
| 111 | Refresh(); |
| 112 | } |
| 113 | |
| 114 | void OnPaint(wxPaintEvent& event) |
| 115 | { |
| 116 | wxPaintDC dc(this); |
| 117 | |
| 118 | if ( m_bitmap.Ok() ) |
| 119 | { |
| 120 | PrepareDC(dc); |
| 121 | |
| 122 | dc.DrawBitmap(m_bitmap, 0, 0); |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | private: |
| 127 | wxBitmap m_bitmap; |
| 128 | |
| 129 | DECLARE_EVENT_TABLE() |
| 130 | }; |
| 131 | |
| 132 | #ifdef USE_METAFILES |
| 133 | |
| 134 | // and the same thing fo metafiles |
| 135 | class DnDCanvasMetafile : public wxScrolledWindow |
| 136 | { |
| 137 | public: |
| 138 | DnDCanvasMetafile(wxWindow *parent) : wxScrolledWindow(parent) { } |
| 139 | |
| 140 | void SetMetafile(const wxMetafile& metafile) |
| 141 | { |
| 142 | m_metafile = metafile; |
| 143 | |
| 144 | SetScrollbars(10, 10, |
| 145 | m_metafile.GetWidth() / 10, m_metafile.GetHeight() / 10); |
| 146 | |
| 147 | Refresh(); |
| 148 | } |
| 149 | |
| 150 | void OnPaint(wxPaintEvent& event) |
| 151 | { |
| 152 | wxPaintDC dc(this); |
| 153 | |
| 154 | if ( m_metafile.Ok() ) |
| 155 | { |
| 156 | PrepareDC(dc); |
| 157 | |
| 158 | m_metafile.Play(&dc); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | private: |
| 163 | wxMetafile m_metafile; |
| 164 | |
| 165 | DECLARE_EVENT_TABLE() |
| 166 | }; |
| 167 | |
| 168 | #endif // USE_METAFILES |
| 169 | |
| 170 | // ---------------------------------------------------------------------------- |
| 171 | // Define a new frame type for the main frame |
| 172 | // ---------------------------------------------------------------------------- |
| 173 | |
| 174 | class DnDFrame : public wxFrame |
| 175 | { |
| 176 | public: |
| 177 | DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h); |
| 178 | ~DnDFrame(); |
| 179 | |
| 180 | void OnPaint(wxPaintEvent& event); |
| 181 | void OnQuit (wxCommandEvent& event); |
| 182 | void OnAbout(wxCommandEvent& event); |
| 183 | void OnDrag (wxCommandEvent& event); |
| 184 | void OnNewFrame(wxCommandEvent& event); |
| 185 | void OnHelp (wxCommandEvent& event); |
| 186 | void OnLogClear(wxCommandEvent& event); |
| 187 | |
| 188 | void OnCopy(wxCommandEvent& event); |
| 189 | void OnPaste(wxCommandEvent& event); |
| 190 | |
| 191 | void OnCopyBitmap(wxCommandEvent& event); |
| 192 | void OnPasteBitmap(wxCommandEvent& event); |
| 193 | |
| 194 | #ifdef USE_METAFILES |
| 195 | void OnPasteMetafile(wxCommandEvent& event); |
| 196 | #endif // USE_METAFILES |
| 197 | |
| 198 | void OnCopyFiles(wxCommandEvent& event); |
| 199 | |
| 200 | void OnLeftDown(wxMouseEvent& event); |
| 201 | void OnRightDown(wxMouseEvent& event); |
| 202 | |
| 203 | void OnUpdateUIPasteText(wxUpdateUIEvent& event); |
| 204 | void OnUpdateUIPasteBitmap(wxUpdateUIEvent& event); |
| 205 | |
| 206 | DECLARE_EVENT_TABLE() |
| 207 | |
| 208 | private: |
| 209 | wxListBox *m_ctrlFile, |
| 210 | *m_ctrlText; |
| 211 | wxTextCtrl *m_ctrlLog; |
| 212 | |
| 213 | wxLog *m_pLog, |
| 214 | *m_pLogPrev; |
| 215 | |
| 216 | wxString m_strText; |
| 217 | }; |
| 218 | |
| 219 | // ---------------------------------------------------------------------------- |
| 220 | // A shape is an example of application-specific data which may be transported |
| 221 | // via drag-and-drop or clipboard: in our case, we have different geometric |
| 222 | // shapes, each one with its own colour and position |
| 223 | // ---------------------------------------------------------------------------- |
| 224 | |
| 225 | class DnDShape |
| 226 | { |
| 227 | public: |
| 228 | enum Kind |
| 229 | { |
| 230 | None, |
| 231 | Triangle, |
| 232 | Rectangle, |
| 233 | Ellipse |
| 234 | }; |
| 235 | |
| 236 | DnDShape(const wxPoint& pos, |
| 237 | const wxSize& size, |
| 238 | const wxColour& col) |
| 239 | : m_pos(pos), m_size(size), m_col(col) |
| 240 | { |
| 241 | } |
| 242 | |
| 243 | // this is for debugging - lets us see when exactly an object is freed |
| 244 | // (this may be later than you think if it's on the clipboard, for example) |
| 245 | virtual ~DnDShape() { } |
| 246 | |
| 247 | // the functions used for drag-and-drop: they dump and restore a shape into |
| 248 | // some bitwise-copiable data (might use streams too...) |
| 249 | // ------------------------------------------------------------------------ |
| 250 | |
| 251 | // restore from buffer |
| 252 | static DnDShape *New(const void *buf); |
| 253 | |
| 254 | virtual size_t GetDataSize() const |
| 255 | { |
| 256 | return sizeof(ShapeDump); |
| 257 | } |
| 258 | |
| 259 | virtual void GetDataHere(void *buf) const |
| 260 | { |
| 261 | ShapeDump& dump = *(ShapeDump *)buf; |
| 262 | dump.x = m_pos.x; |
| 263 | dump.y = m_pos.y; |
| 264 | dump.w = m_size.x; |
| 265 | dump.h = m_size.y; |
| 266 | dump.r = m_col.Red(); |
| 267 | dump.g = m_col.Green(); |
| 268 | dump.b = m_col.Blue(); |
| 269 | dump.k = GetKind(); |
| 270 | } |
| 271 | |
| 272 | // accessors |
| 273 | const wxPoint& GetPosition() const { return m_pos; } |
| 274 | const wxColour& GetColour() const { return m_col; } |
| 275 | const wxSize& GetSize() const { return m_size; } |
| 276 | |
| 277 | void Move(const wxPoint& pos) { m_pos = pos; } |
| 278 | |
| 279 | // to implement in derived classes |
| 280 | virtual Kind GetKind() const = 0; |
| 281 | |
| 282 | virtual void Draw(wxDC& dc) |
| 283 | { |
| 284 | dc.SetPen(wxPen(m_col, 1, wxSOLID)); |
| 285 | } |
| 286 | |
| 287 | protected: |
| 288 | wxPoint GetCentre() const |
| 289 | { return wxPoint(m_pos.x + m_size.x / 2, m_pos.y + m_size.y / 2); } |
| 290 | |
| 291 | struct ShapeDump |
| 292 | { |
| 293 | int x, y, // position |
| 294 | w, h, // size |
| 295 | r, g, b, // colour |
| 296 | k; // kind |
| 297 | }; |
| 298 | |
| 299 | wxPoint m_pos; |
| 300 | wxSize m_size; |
| 301 | wxColour m_col; |
| 302 | }; |
| 303 | |
| 304 | class DnDTriangularShape : public DnDShape |
| 305 | { |
| 306 | public: |
| 307 | DnDTriangularShape(const wxPoint& pos, |
| 308 | const wxSize& size, |
| 309 | const wxColour& col) |
| 310 | : DnDShape(pos, size, col) |
| 311 | { |
| 312 | wxLogMessage("DnDTriangularShape is being created"); |
| 313 | } |
| 314 | |
| 315 | virtual ~DnDTriangularShape() |
| 316 | { |
| 317 | wxLogMessage("DnDTriangularShape is being deleted"); |
| 318 | } |
| 319 | |
| 320 | virtual Kind GetKind() const { return Triangle; } |
| 321 | virtual void Draw(wxDC& dc) |
| 322 | { |
| 323 | DnDShape::Draw(dc); |
| 324 | |
| 325 | // well, it's a bit difficult to describe a triangle by position and |
| 326 | // size, but we're not doing geometry here, do we? ;-) |
| 327 | wxPoint p1(m_pos); |
| 328 | wxPoint p2(m_pos.x + m_size.x, m_pos.y); |
| 329 | wxPoint p3(m_pos.x, m_pos.y + m_size.y); |
| 330 | |
| 331 | dc.DrawLine(p1, p2); |
| 332 | dc.DrawLine(p2, p3); |
| 333 | dc.DrawLine(p3, p1); |
| 334 | |
| 335 | #ifdef __WXMSW__ |
| 336 | dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER); |
| 337 | #endif |
| 338 | } |
| 339 | }; |
| 340 | |
| 341 | class DnDRectangularShape : public DnDShape |
| 342 | { |
| 343 | public: |
| 344 | DnDRectangularShape(const wxPoint& pos, |
| 345 | const wxSize& size, |
| 346 | const wxColour& col) |
| 347 | : DnDShape(pos, size, col) |
| 348 | { |
| 349 | wxLogMessage("DnDRectangularShape is being created"); |
| 350 | } |
| 351 | |
| 352 | virtual ~DnDRectangularShape() |
| 353 | { |
| 354 | wxLogMessage("DnDRectangularShape is being deleted"); |
| 355 | } |
| 356 | |
| 357 | virtual Kind GetKind() const { return Rectangle; } |
| 358 | virtual void Draw(wxDC& dc) |
| 359 | { |
| 360 | DnDShape::Draw(dc); |
| 361 | |
| 362 | wxPoint p1(m_pos); |
| 363 | wxPoint p2(p1.x + m_size.x, p1.y); |
| 364 | wxPoint p3(p2.x, p2.y + m_size.y); |
| 365 | wxPoint p4(p1.x, p3.y); |
| 366 | |
| 367 | dc.DrawLine(p1, p2); |
| 368 | dc.DrawLine(p2, p3); |
| 369 | dc.DrawLine(p3, p4); |
| 370 | dc.DrawLine(p4, p1); |
| 371 | |
| 372 | #ifdef __WXMSW__ |
| 373 | dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER); |
| 374 | #endif |
| 375 | } |
| 376 | }; |
| 377 | |
| 378 | class DnDEllipticShape : public DnDShape |
| 379 | { |
| 380 | public: |
| 381 | DnDEllipticShape(const wxPoint& pos, |
| 382 | const wxSize& size, |
| 383 | const wxColour& col) |
| 384 | : DnDShape(pos, size, col) |
| 385 | { |
| 386 | wxLogMessage("DnDEllipticShape is being created"); |
| 387 | } |
| 388 | |
| 389 | virtual ~DnDEllipticShape() |
| 390 | { |
| 391 | wxLogMessage("DnDEllipticShape is being deleted"); |
| 392 | } |
| 393 | |
| 394 | virtual Kind GetKind() const { return Ellipse; } |
| 395 | virtual void Draw(wxDC& dc) |
| 396 | { |
| 397 | DnDShape::Draw(dc); |
| 398 | |
| 399 | dc.DrawEllipse(m_pos, m_size); |
| 400 | |
| 401 | #ifdef __WXMSW__ |
| 402 | dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER); |
| 403 | #endif |
| 404 | } |
| 405 | }; |
| 406 | |
| 407 | // ---------------------------------------------------------------------------- |
| 408 | // A wxDataObject specialisation for the application-specific data |
| 409 | // ---------------------------------------------------------------------------- |
| 410 | |
| 411 | static const char *shapeFormatId = "wxShape"; |
| 412 | |
| 413 | class DnDShapeDataObject : public wxDataObject |
| 414 | { |
| 415 | public: |
| 416 | // ctor doesn't copy the pointer, so it shouldn't go away while this object |
| 417 | // is alive |
| 418 | DnDShapeDataObject(DnDShape *shape = (DnDShape *)NULL) |
| 419 | { |
| 420 | if ( shape ) |
| 421 | { |
| 422 | // we need to copy the shape because the one we're handled may be |
| 423 | // deleted while it's still on the clipboard (for example) - and we |
| 424 | // reuse the serialisation methods here to copy it |
| 425 | void *buf = malloc(shape->DnDShape::GetDataSize()); |
| 426 | shape->GetDataHere(buf); |
| 427 | m_shape = DnDShape::New(buf); |
| 428 | |
| 429 | free(buf); |
| 430 | } |
| 431 | else |
| 432 | { |
| 433 | // nothing to copy |
| 434 | m_shape = NULL; |
| 435 | } |
| 436 | |
| 437 | // this string should uniquely identify our format, but is otherwise |
| 438 | // arbitrary |
| 439 | m_formatShape.SetId(shapeFormatId); |
| 440 | |
| 441 | // we don't draw the shape to a bitmap until it's really needed (i.e. |
| 442 | // we're asked to do so) |
| 443 | m_hasBitmap = FALSE; |
| 444 | #ifdef USE_METAFILES |
| 445 | m_hasMetaFile = FALSE; |
| 446 | #endif // Windows |
| 447 | } |
| 448 | |
| 449 | virtual ~DnDShapeDataObject() { delete m_shape; } |
| 450 | |
| 451 | // after a call to this function, the shape is owned by the caller and it |
| 452 | // is responsible for deleting it! |
| 453 | // |
| 454 | // NB: a better solution would be to make DnDShapes ref counted and this |
| 455 | // is what should probably be done in a real life program, otherwise |
| 456 | // the ownership problems become too complicated really fast |
| 457 | DnDShape *GetShape() |
| 458 | { |
| 459 | DnDShape *shape = m_shape; |
| 460 | |
| 461 | m_shape = (DnDShape *)NULL; |
| 462 | m_hasBitmap = FALSE; |
| 463 | #ifdef USE_METAFILES |
| 464 | m_hasMetaFile = FALSE; |
| 465 | #endif // Windows |
| 466 | |
| 467 | return shape; |
| 468 | } |
| 469 | |
| 470 | // implement base class pure virtuals |
| 471 | // ---------------------------------- |
| 472 | |
| 473 | virtual wxDataFormat GetPreferredFormat(Direction WXUNUSED(dir)) const |
| 474 | { |
| 475 | return m_formatShape; |
| 476 | } |
| 477 | |
| 478 | virtual size_t GetFormatCount(Direction dir) const |
| 479 | { |
| 480 | // our custom format is supported by both GetData() and SetData() |
| 481 | size_t nFormats = 1; |
| 482 | if ( dir == Get ) |
| 483 | { |
| 484 | // but the bitmap format(s) are only supported for output |
| 485 | nFormats += m_dobjBitmap.GetFormatCount(dir); |
| 486 | |
| 487 | #ifdef USE_METAFILES |
| 488 | nFormats += m_dobjMetaFile.GetFormatCount(dir); |
| 489 | #endif // Windows |
| 490 | } |
| 491 | |
| 492 | return nFormats; |
| 493 | } |
| 494 | |
| 495 | virtual void GetAllFormats(wxDataFormat *formats, Direction dir) const |
| 496 | { |
| 497 | formats[0] = m_formatShape; |
| 498 | if ( dir == Get ) |
| 499 | { |
| 500 | // in Get direction we additionally support bitmaps and metafiles |
| 501 | // under Windows |
| 502 | m_dobjBitmap.GetAllFormats(&formats[1], dir); |
| 503 | |
| 504 | #ifdef USE_METAFILES |
| 505 | // don't assume that m_dobjBitmap has only 1 format |
| 506 | m_dobjMetaFile.GetAllFormats(&formats[1 + |
| 507 | m_dobjBitmap.GetFormatCount(dir)], dir); |
| 508 | #endif // Windows |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | virtual size_t GetDataSize(const wxDataFormat& format) const |
| 513 | { |
| 514 | if ( format == m_formatShape ) |
| 515 | { |
| 516 | return m_shape->GetDataSize(); |
| 517 | } |
| 518 | #ifdef USE_METAFILES |
| 519 | else if ( m_dobjMetaFile.IsSupported(format) ) |
| 520 | { |
| 521 | if ( !m_hasMetaFile ) |
| 522 | CreateMetaFile(); |
| 523 | |
| 524 | return m_dobjMetaFile.GetDataSize(format); |
| 525 | } |
| 526 | #endif // Windows |
| 527 | else |
| 528 | { |
| 529 | wxASSERT_MSG( m_dobjBitmap.IsSupported(format), |
| 530 | "unexpected format" ); |
| 531 | |
| 532 | if ( !m_hasBitmap ) |
| 533 | CreateBitmap(); |
| 534 | |
| 535 | return m_dobjBitmap.GetDataSize(); |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | virtual bool GetDataHere(const wxDataFormat& format, void *pBuf) const |
| 540 | { |
| 541 | if ( format == m_formatShape ) |
| 542 | { |
| 543 | m_shape->GetDataHere(pBuf); |
| 544 | |
| 545 | return TRUE; |
| 546 | } |
| 547 | #ifdef USE_METAFILES |
| 548 | else if ( m_dobjMetaFile.IsSupported(format) ) |
| 549 | { |
| 550 | if ( !m_hasMetaFile ) |
| 551 | CreateMetaFile(); |
| 552 | |
| 553 | return m_dobjMetaFile.GetDataHere(format, pBuf); |
| 554 | } |
| 555 | #endif // Windows |
| 556 | else |
| 557 | { |
| 558 | wxASSERT_MSG( m_dobjBitmap.IsSupported(format), |
| 559 | "unexpected format" ); |
| 560 | |
| 561 | if ( !m_hasBitmap ) |
| 562 | CreateBitmap(); |
| 563 | |
| 564 | return m_dobjBitmap.GetDataHere(pBuf); |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | virtual bool SetData(const wxDataFormat& format, |
| 569 | size_t len, const void *buf) |
| 570 | { |
| 571 | wxCHECK_MSG( format == m_formatShape, FALSE, "unsupported format" ); |
| 572 | |
| 573 | delete m_shape; |
| 574 | m_shape = DnDShape::New(buf); |
| 575 | |
| 576 | // the shape has changed |
| 577 | m_hasBitmap = FALSE; |
| 578 | |
| 579 | #ifdef USE_METAFILES |
| 580 | m_hasMetaFile = FALSE; |
| 581 | #endif // Windows |
| 582 | |
| 583 | return TRUE; |
| 584 | } |
| 585 | |
| 586 | private: |
| 587 | // creates a bitmap and assigns it to m_dobjBitmap (also sets m_hasBitmap) |
| 588 | void CreateBitmap() const; |
| 589 | #ifdef USE_METAFILES |
| 590 | void CreateMetaFile() const; |
| 591 | #endif // Windows |
| 592 | |
| 593 | wxDataFormat m_formatShape; // our custom format |
| 594 | |
| 595 | wxBitmapDataObject m_dobjBitmap; // it handles bitmaps |
| 596 | bool m_hasBitmap; // true if m_dobjBitmap has valid bitmap |
| 597 | |
| 598 | #ifdef USE_METAFILES |
| 599 | wxMetaFileDataObject m_dobjMetaFile;// handles metafiles |
| 600 | bool m_hasMetaFile; // true if we have valid metafile |
| 601 | #endif // Windows |
| 602 | |
| 603 | DnDShape *m_shape; // our data |
| 604 | }; |
| 605 | |
| 606 | // ---------------------------------------------------------------------------- |
| 607 | // A dialog to edit shape properties |
| 608 | // ---------------------------------------------------------------------------- |
| 609 | |
| 610 | class DnDShapeDialog : public wxDialog |
| 611 | { |
| 612 | public: |
| 613 | DnDShapeDialog(wxFrame *parent, DnDShape *shape); |
| 614 | |
| 615 | DnDShape *GetShape() const; |
| 616 | |
| 617 | virtual bool TransferDataToWindow(); |
| 618 | virtual bool TransferDataFromWindow(); |
| 619 | |
| 620 | void OnColour(wxCommandEvent& event); |
| 621 | |
| 622 | private: |
| 623 | // input |
| 624 | DnDShape *m_shape; |
| 625 | |
| 626 | // output |
| 627 | DnDShape::Kind m_shapeKind; |
| 628 | wxPoint m_pos; |
| 629 | wxSize m_size; |
| 630 | wxColour m_col; |
| 631 | |
| 632 | // controls |
| 633 | wxRadioBox *m_radio; |
| 634 | wxTextCtrl *m_textX, |
| 635 | *m_textY, |
| 636 | *m_textW, |
| 637 | *m_textH; |
| 638 | |
| 639 | DECLARE_EVENT_TABLE() |
| 640 | }; |
| 641 | |
| 642 | // ---------------------------------------------------------------------------- |
| 643 | // A frame for the shapes which can be drag-and-dropped between frames |
| 644 | // ---------------------------------------------------------------------------- |
| 645 | |
| 646 | class DnDShapeFrame : public wxFrame |
| 647 | { |
| 648 | public: |
| 649 | DnDShapeFrame(wxFrame *parent); |
| 650 | ~DnDShapeFrame(); |
| 651 | |
| 652 | void SetShape(DnDShape *shape); |
| 653 | |
| 654 | // callbacks |
| 655 | void OnNewShape(wxCommandEvent& event); |
| 656 | void OnEditShape(wxCommandEvent& event); |
| 657 | void OnClearShape(wxCommandEvent& event); |
| 658 | |
| 659 | void OnCopyShape(wxCommandEvent& event); |
| 660 | void OnPasteShape(wxCommandEvent& event); |
| 661 | |
| 662 | void OnUpdateUICopy(wxUpdateUIEvent& event); |
| 663 | void OnUpdateUIPaste(wxUpdateUIEvent& event); |
| 664 | |
| 665 | void OnDrag(wxMouseEvent& event); |
| 666 | void OnPaint(wxPaintEvent& event); |
| 667 | void OnDrop(wxCoord x, wxCoord y, DnDShape *shape); |
| 668 | |
| 669 | private: |
| 670 | DnDShape *m_shape; |
| 671 | |
| 672 | static DnDShapeFrame *ms_lastDropTarget; |
| 673 | |
| 674 | DECLARE_EVENT_TABLE() |
| 675 | }; |
| 676 | |
| 677 | // ---------------------------------------------------------------------------- |
| 678 | // wxDropTarget derivation for DnDShapes |
| 679 | // ---------------------------------------------------------------------------- |
| 680 | |
| 681 | class DnDShapeDropTarget : public wxDropTarget |
| 682 | { |
| 683 | public: |
| 684 | DnDShapeDropTarget(DnDShapeFrame *frame) |
| 685 | : wxDropTarget(new DnDShapeDataObject) |
| 686 | { |
| 687 | m_frame = frame; |
| 688 | } |
| 689 | |
| 690 | // override base class (pure) virtuals |
| 691 | virtual wxDragResult OnEnter(wxCoord x, wxCoord y, wxDragResult def) |
| 692 | { m_frame->SetStatusText("Mouse entered the frame"); return OnDragOver(x, y, def); } |
| 693 | virtual void OnLeave() |
| 694 | { m_frame->SetStatusText("Mouse left the frame"); } |
| 695 | virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def) |
| 696 | { |
| 697 | if ( !GetData() ) |
| 698 | { |
| 699 | wxLogError("Failed to get drag and drop data"); |
| 700 | |
| 701 | return wxDragNone; |
| 702 | } |
| 703 | |
| 704 | m_frame->OnDrop(x, y, |
| 705 | ((DnDShapeDataObject *)GetDataObject())->GetShape()); |
| 706 | |
| 707 | return def; |
| 708 | } |
| 709 | |
| 710 | private: |
| 711 | DnDShapeFrame *m_frame; |
| 712 | }; |
| 713 | |
| 714 | // ---------------------------------------------------------------------------- |
| 715 | // functions prototypes |
| 716 | // ---------------------------------------------------------------------------- |
| 717 | |
| 718 | static void ShowBitmap(const wxBitmap& bitmap); |
| 719 | |
| 720 | #ifdef USE_METAFILES |
| 721 | static void ShowMetaFile(const wxMetaFile& metafile); |
| 722 | #endif // USE_METAFILES |
| 723 | |
| 724 | // ---------------------------------------------------------------------------- |
| 725 | // IDs for the menu commands |
| 726 | // ---------------------------------------------------------------------------- |
| 727 | |
| 728 | enum |
| 729 | { |
| 730 | Menu_Quit = 1, |
| 731 | Menu_Drag, |
| 732 | Menu_NewFrame, |
| 733 | Menu_About = 101, |
| 734 | Menu_Help, |
| 735 | Menu_Clear, |
| 736 | Menu_Copy, |
| 737 | Menu_Paste, |
| 738 | Menu_CopyBitmap, |
| 739 | Menu_PasteBitmap, |
| 740 | Menu_PasteMFile, |
| 741 | Menu_CopyFiles, |
| 742 | Menu_Shape_New = 500, |
| 743 | Menu_Shape_Edit, |
| 744 | Menu_Shape_Clear, |
| 745 | Menu_ShapeClipboard_Copy, |
| 746 | Menu_ShapeClipboard_Paste, |
| 747 | Button_Colour = 1001 |
| 748 | }; |
| 749 | |
| 750 | BEGIN_EVENT_TABLE(DnDFrame, wxFrame) |
| 751 | EVT_MENU(Menu_Quit, DnDFrame::OnQuit) |
| 752 | EVT_MENU(Menu_About, DnDFrame::OnAbout) |
| 753 | EVT_MENU(Menu_Drag, DnDFrame::OnDrag) |
| 754 | EVT_MENU(Menu_NewFrame, DnDFrame::OnNewFrame) |
| 755 | EVT_MENU(Menu_Help, DnDFrame::OnHelp) |
| 756 | EVT_MENU(Menu_Clear, DnDFrame::OnLogClear) |
| 757 | EVT_MENU(Menu_Copy, DnDFrame::OnCopy) |
| 758 | EVT_MENU(Menu_Paste, DnDFrame::OnPaste) |
| 759 | EVT_MENU(Menu_CopyBitmap, DnDFrame::OnCopyBitmap) |
| 760 | EVT_MENU(Menu_PasteBitmap,DnDFrame::OnPasteBitmap) |
| 761 | #ifdef USE_METAFILES |
| 762 | EVT_MENU(Menu_PasteMFile, DnDFrame::OnPasteMetafile) |
| 763 | #endif // USE_METAFILES |
| 764 | EVT_MENU(Menu_CopyFiles, DnDFrame::OnCopyFiles) |
| 765 | |
| 766 | EVT_UPDATE_UI(Menu_Paste, DnDFrame::OnUpdateUIPasteText) |
| 767 | EVT_UPDATE_UI(Menu_PasteBitmap, DnDFrame::OnUpdateUIPasteBitmap) |
| 768 | |
| 769 | EVT_LEFT_DOWN( DnDFrame::OnLeftDown) |
| 770 | EVT_RIGHT_DOWN( DnDFrame::OnRightDown) |
| 771 | EVT_PAINT( DnDFrame::OnPaint) |
| 772 | END_EVENT_TABLE() |
| 773 | |
| 774 | BEGIN_EVENT_TABLE(DnDShapeFrame, wxFrame) |
| 775 | EVT_MENU(Menu_Shape_New, DnDShapeFrame::OnNewShape) |
| 776 | EVT_MENU(Menu_Shape_Edit, DnDShapeFrame::OnEditShape) |
| 777 | EVT_MENU(Menu_Shape_Clear, DnDShapeFrame::OnClearShape) |
| 778 | |
| 779 | EVT_MENU(Menu_ShapeClipboard_Copy, DnDShapeFrame::OnCopyShape) |
| 780 | EVT_MENU(Menu_ShapeClipboard_Paste, DnDShapeFrame::OnPasteShape) |
| 781 | |
| 782 | EVT_UPDATE_UI(Menu_ShapeClipboard_Copy, DnDShapeFrame::OnUpdateUICopy) |
| 783 | EVT_UPDATE_UI(Menu_ShapeClipboard_Paste, DnDShapeFrame::OnUpdateUIPaste) |
| 784 | |
| 785 | EVT_LEFT_DOWN(DnDShapeFrame::OnDrag) |
| 786 | |
| 787 | EVT_PAINT(DnDShapeFrame::OnPaint) |
| 788 | END_EVENT_TABLE() |
| 789 | |
| 790 | BEGIN_EVENT_TABLE(DnDShapeDialog, wxDialog) |
| 791 | EVT_BUTTON(Button_Colour, DnDShapeDialog::OnColour) |
| 792 | END_EVENT_TABLE() |
| 793 | |
| 794 | BEGIN_EVENT_TABLE(DnDCanvasBitmap, wxScrolledWindow) |
| 795 | EVT_PAINT(DnDCanvasBitmap::OnPaint) |
| 796 | END_EVENT_TABLE() |
| 797 | |
| 798 | #ifdef USE_METAFILES |
| 799 | BEGIN_EVENT_TABLE(DnDCanvasMetafile, wxScrolledWindow) |
| 800 | EVT_PAINT(DnDCanvasMetafile::OnPaint) |
| 801 | END_EVENT_TABLE() |
| 802 | #endif // USE_METAFILES |
| 803 | |
| 804 | // ============================================================================ |
| 805 | // implementation |
| 806 | // ============================================================================ |
| 807 | |
| 808 | // `Main program' equivalent, creating windows and returning main app frame |
| 809 | bool DnDApp::OnInit() |
| 810 | { |
| 811 | // load our ressources |
| 812 | wxPathList pathList; |
| 813 | pathList.Add("."); |
| 814 | #ifdef __WXMSW__ |
| 815 | pathList.Add("./Debug"); |
| 816 | pathList.Add("./Release"); |
| 817 | #endif // wxMSW |
| 818 | |
| 819 | wxString path = pathList.FindValidPath("dnd.wxr"); |
| 820 | if ( !path ) |
| 821 | { |
| 822 | wxLogError("Can't find the resource file dnd.wxr in the current " |
| 823 | "directory, aborting."); |
| 824 | |
| 825 | return FALSE; |
| 826 | } |
| 827 | |
| 828 | wxDefaultResourceTable->ParseResourceFile(path); |
| 829 | |
| 830 | // switch on trace messages |
| 831 | #if defined(__WXGTK__) |
| 832 | wxLog::AddTraceMask(_T("clipboard")); |
| 833 | #elif defined(__WXMSW__) |
| 834 | wxLog::AddTraceMask(wxTRACE_OleCalls); |
| 835 | #endif |
| 836 | |
| 837 | #if wxUSE_LIBPNG |
| 838 | wxImage::AddHandler( new wxPNGHandler ); |
| 839 | #endif |
| 840 | |
| 841 | // under X we usually want to use the primary selection by default (which |
| 842 | // is shared with other apps) |
| 843 | wxTheClipboard->UsePrimarySelection(); |
| 844 | |
| 845 | // create the main frame window |
| 846 | DnDFrame *frame = new DnDFrame((wxFrame *) NULL, |
| 847 | "Drag-and-Drop/Clipboard wxWindows Sample", |
| 848 | 10, 100, 650, 340); |
| 849 | |
| 850 | // activate it |
| 851 | frame->Show(TRUE); |
| 852 | |
| 853 | SetTopWindow(frame); |
| 854 | |
| 855 | return TRUE; |
| 856 | } |
| 857 | |
| 858 | DnDFrame::DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h) |
| 859 | : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h)), |
| 860 | m_strText("wxWindows drag & drop works :-)") |
| 861 | |
| 862 | { |
| 863 | // frame icon and status bar |
| 864 | SetIcon(wxICON(mondrian)); |
| 865 | |
| 866 | CreateStatusBar(); |
| 867 | |
| 868 | // construct menu |
| 869 | wxMenu *file_menu = new wxMenu; |
| 870 | file_menu->Append(Menu_Drag, "&Test drag..."); |
| 871 | file_menu->AppendSeparator(); |
| 872 | file_menu->Append(Menu_NewFrame, "&New frame\tCtrl-N"); |
| 873 | file_menu->AppendSeparator(); |
| 874 | file_menu->Append(Menu_Quit, "E&xit"); |
| 875 | |
| 876 | wxMenu *log_menu = new wxMenu; |
| 877 | log_menu->Append(Menu_Clear, "Clear\tCtrl-L"); |
| 878 | |
| 879 | wxMenu *help_menu = new wxMenu; |
| 880 | help_menu->Append(Menu_Help, "&Help..."); |
| 881 | help_menu->AppendSeparator(); |
| 882 | help_menu->Append(Menu_About, "&About"); |
| 883 | |
| 884 | wxMenu *clip_menu = new wxMenu; |
| 885 | clip_menu->Append(Menu_Copy, "&Copy text\tCtrl+C"); |
| 886 | clip_menu->Append(Menu_Paste, "&Paste text\tCtrl+V"); |
| 887 | clip_menu->AppendSeparator(); |
| 888 | clip_menu->Append(Menu_CopyBitmap, "Copy &bitmap\tAlt+C"); |
| 889 | clip_menu->Append(Menu_PasteBitmap, "Paste b&itmap\tAlt+V"); |
| 890 | #ifdef USE_METAFILES |
| 891 | clip_menu->AppendSeparator(); |
| 892 | clip_menu->Append(Menu_PasteMFile, "Paste &metafile\tCtrl-M"); |
| 893 | #endif // USE_METAFILES |
| 894 | clip_menu->AppendSeparator(); |
| 895 | clip_menu->Append(Menu_CopyFiles, "Copy &files\tCtrl+F"); |
| 896 | |
| 897 | wxMenuBar *menu_bar = new wxMenuBar; |
| 898 | menu_bar->Append(file_menu, "&File"); |
| 899 | menu_bar->Append(log_menu, "&Log"); |
| 900 | menu_bar->Append(clip_menu, "&Clipboard"); |
| 901 | menu_bar->Append(help_menu, "&Help"); |
| 902 | |
| 903 | SetMenuBar(menu_bar); |
| 904 | |
| 905 | // make a panel with 3 subwindows |
| 906 | wxPoint pos(0, 0); |
| 907 | wxSize size(400, 200); |
| 908 | |
| 909 | wxString strFile("Drop files here!"), strText("Drop text on me"); |
| 910 | |
| 911 | m_ctrlFile = new wxListBox(this, -1, pos, size, 1, &strFile, |
| 912 | wxLB_HSCROLL | wxLB_ALWAYS_SB ); |
| 913 | m_ctrlText = new wxListBox(this, -1, pos, size, 1, &strText, |
| 914 | wxLB_HSCROLL | wxLB_ALWAYS_SB ); |
| 915 | |
| 916 | m_ctrlLog = new wxTextCtrl(this, -1, "", pos, size, |
| 917 | wxTE_MULTILINE | wxTE_READONLY | |
| 918 | wxSUNKEN_BORDER ); |
| 919 | |
| 920 | // redirect log messages to the text window |
| 921 | m_pLog = new wxLogTextCtrl(m_ctrlLog); |
| 922 | m_pLogPrev = wxLog::SetActiveTarget(m_pLog); |
| 923 | |
| 924 | // associate drop targets with 2 text controls |
| 925 | m_ctrlFile->SetDropTarget(new DnDFile(m_ctrlFile)); |
| 926 | m_ctrlText->SetDropTarget(new DnDText(m_ctrlText)); |
| 927 | |
| 928 | wxLayoutConstraints *c; |
| 929 | |
| 930 | // Top-left listbox |
| 931 | c = new wxLayoutConstraints; |
| 932 | c->left.SameAs(this, wxLeft); |
| 933 | c->top.SameAs(this, wxTop); |
| 934 | c->right.PercentOf(this, wxRight, 50); |
| 935 | c->height.PercentOf(this, wxHeight, 30); |
| 936 | m_ctrlFile->SetConstraints(c); |
| 937 | |
| 938 | // Top-right listbox |
| 939 | c = new wxLayoutConstraints; |
| 940 | c->left.SameAs (m_ctrlFile, wxRight); |
| 941 | c->top.SameAs (this, wxTop); |
| 942 | c->right.SameAs (this, wxRight); |
| 943 | c->height.PercentOf(this, wxHeight, 30); |
| 944 | m_ctrlText->SetConstraints(c); |
| 945 | |
| 946 | // Lower text control |
| 947 | c = new wxLayoutConstraints; |
| 948 | c->left.SameAs (this, wxLeft); |
| 949 | c->right.SameAs (this, wxRight); |
| 950 | c->height.PercentOf(this, wxHeight, 50); |
| 951 | c->top.SameAs(m_ctrlText, wxBottom); |
| 952 | m_ctrlLog->SetConstraints(c); |
| 953 | |
| 954 | SetAutoLayout(TRUE); |
| 955 | } |
| 956 | |
| 957 | void DnDFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) |
| 958 | { |
| 959 | Close(TRUE); |
| 960 | } |
| 961 | |
| 962 | void DnDFrame::OnPaint(wxPaintEvent& WXUNUSED(event)) |
| 963 | { |
| 964 | int w = 0; |
| 965 | int h = 0; |
| 966 | GetClientSize( &w, &h ); |
| 967 | |
| 968 | wxPaintDC dc(this); |
| 969 | dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL, FALSE, "charter" ) ); |
| 970 | dc.DrawText( "Drag text from here!", 100, h-50 ); |
| 971 | } |
| 972 | |
| 973 | void DnDFrame::OnUpdateUIPasteText(wxUpdateUIEvent& event) |
| 974 | { |
| 975 | #ifdef __WXDEBUG__ |
| 976 | // too many trace messages if we don't do it - this function is called |
| 977 | // very often |
| 978 | wxLogNull nolog; |
| 979 | #endif |
| 980 | |
| 981 | event.Enable( wxTheClipboard->IsSupported(wxDF_TEXT) ); |
| 982 | } |
| 983 | |
| 984 | void DnDFrame::OnUpdateUIPasteBitmap(wxUpdateUIEvent& event) |
| 985 | { |
| 986 | #ifdef __WXDEBUG__ |
| 987 | // too many trace messages if we don't do it - this function is called |
| 988 | // very often |
| 989 | wxLogNull nolog; |
| 990 | #endif |
| 991 | |
| 992 | event.Enable( wxTheClipboard->IsSupported(wxDF_BITMAP) ); |
| 993 | } |
| 994 | |
| 995 | void DnDFrame::OnNewFrame(wxCommandEvent& WXUNUSED(event)) |
| 996 | { |
| 997 | (new DnDShapeFrame(this))->Show(TRUE); |
| 998 | |
| 999 | wxLogStatus(this, "Double click the new frame to select a shape for it"); |
| 1000 | } |
| 1001 | |
| 1002 | void DnDFrame::OnDrag(wxCommandEvent& WXUNUSED(event)) |
| 1003 | { |
| 1004 | wxString strText = wxGetTextFromUser |
| 1005 | ( |
| 1006 | "After you enter text in this dialog, press any mouse\n" |
| 1007 | "button in the bottom (empty) part of the frame and \n" |
| 1008 | "drag it anywhere - you will be in fact dragging the\n" |
| 1009 | "text object containing this text", |
| 1010 | "Please enter some text", m_strText, this |
| 1011 | ); |
| 1012 | |
| 1013 | m_strText = strText; |
| 1014 | } |
| 1015 | |
| 1016 | void DnDFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) |
| 1017 | { |
| 1018 | wxMessageBox("Drag-&-Drop Demo\n" |
| 1019 | "Please see \"Help|Help...\" for details\n" |
| 1020 | "Copyright (c) 1998 Vadim Zeitlin", |
| 1021 | "About wxDnD", |
| 1022 | wxICON_INFORMATION | wxOK, |
| 1023 | this); |
| 1024 | } |
| 1025 | |
| 1026 | void DnDFrame::OnHelp(wxCommandEvent& /* event */) |
| 1027 | { |
| 1028 | wxMessageDialog dialog(this, |
| 1029 | "This small program demonstrates drag & drop support in wxWindows. The program window\n" |
| 1030 | "consists of 3 parts: the bottom pane is for debug messages, so that you can see what's\n" |
| 1031 | "going on inside. The top part is split into 2 listboxes, the left one accepts files\n" |
| 1032 | "and the right one accepts text.\n" |
| 1033 | "\n" |
| 1034 | "To test wxDropTarget: open wordpad (write.exe), select some text in it and drag it to\n" |
| 1035 | "the right listbox (you'll notice the usual visual feedback, i.e. the cursor will change).\n" |
| 1036 | "Also, try dragging some files (you can select several at once) from Windows Explorer (or \n" |
| 1037 | "File Manager) to the left pane. Hold down Ctrl/Shift keys when you drop text (doesn't \n" |
| 1038 | "work with files) and see what changes.\n" |
| 1039 | "\n" |
| 1040 | "To test wxDropSource: just press any mouse button on the empty zone of the window and drag\n" |
| 1041 | "it to wordpad or any other droptarget accepting text (and of course you can just drag it\n" |
| 1042 | "to the right pane). Due to a lot of trace messages, the cursor might take some time to \n" |
| 1043 | "change, don't release the mouse button until it does. You can change the string being\n" |
| 1044 | "dragged in in \"File|Test drag...\" dialog.\n" |
| 1045 | "\n" |
| 1046 | "\n" |
| 1047 | "Please send all questions/bug reports/suggestions &c to \n" |
| 1048 | "Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>", |
| 1049 | "wxDnD Help"); |
| 1050 | |
| 1051 | dialog.ShowModal(); |
| 1052 | } |
| 1053 | |
| 1054 | void DnDFrame::OnLogClear(wxCommandEvent& /* event */ ) |
| 1055 | { |
| 1056 | m_ctrlLog->Clear(); |
| 1057 | m_ctrlText->Clear(); |
| 1058 | m_ctrlFile->Clear(); |
| 1059 | } |
| 1060 | |
| 1061 | void DnDFrame::OnLeftDown(wxMouseEvent &WXUNUSED(event) ) |
| 1062 | { |
| 1063 | if ( !m_strText.IsEmpty() ) |
| 1064 | { |
| 1065 | // start drag operation |
| 1066 | wxTextDataObject textData(m_strText); |
| 1067 | /* |
| 1068 | wxFileDataObject textData; |
| 1069 | textData.AddFile( "/file1.txt" ); |
| 1070 | textData.AddFile( "/file2.txt" ); |
| 1071 | */ |
| 1072 | wxDropSource source(textData, this, |
| 1073 | wxDROP_ICON(dnd_copy), |
| 1074 | wxDROP_ICON(dnd_move), |
| 1075 | wxDROP_ICON(dnd_none)); |
| 1076 | |
| 1077 | const char *pc; |
| 1078 | |
| 1079 | switch ( source.DoDragDrop(TRUE) ) |
| 1080 | { |
| 1081 | case wxDragError: pc = "Error!"; break; |
| 1082 | case wxDragNone: pc = "Nothing"; break; |
| 1083 | case wxDragCopy: pc = "Copied"; break; |
| 1084 | case wxDragMove: pc = "Moved"; break; |
| 1085 | case wxDragCancel: pc = "Cancelled"; break; |
| 1086 | default: pc = "Huh?"; break; |
| 1087 | } |
| 1088 | |
| 1089 | SetStatusText(wxString("Drag result: ") + pc); |
| 1090 | } |
| 1091 | } |
| 1092 | |
| 1093 | void DnDFrame::OnRightDown(wxMouseEvent &event ) |
| 1094 | { |
| 1095 | wxMenu menu("Dnd sample menu"); |
| 1096 | |
| 1097 | menu.Append(Menu_Drag, "&Test drag..."); |
| 1098 | menu.AppendSeparator(); |
| 1099 | menu.Append(Menu_About, "&About"); |
| 1100 | |
| 1101 | PopupMenu( &menu, event.GetX(), event.GetY() ); |
| 1102 | } |
| 1103 | |
| 1104 | DnDFrame::~DnDFrame() |
| 1105 | { |
| 1106 | if ( m_pLog != NULL ) { |
| 1107 | if ( wxLog::SetActiveTarget(m_pLogPrev) == m_pLog ) |
| 1108 | delete m_pLog; |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | // --------------------------------------------------------------------------- |
| 1113 | // bitmap clipboard |
| 1114 | // --------------------------------------------------------------------------- |
| 1115 | |
| 1116 | void DnDFrame::OnCopyBitmap(wxCommandEvent& WXUNUSED(event)) |
| 1117 | { |
| 1118 | // PNG support is not always compiled in under Windows, so use BMP there |
| 1119 | #ifdef __WXMSW__ |
| 1120 | wxFileDialog dialog(this, "Open a BMP file", "", "", "BMP files (*.bmp)|*.bmp", 0); |
| 1121 | #else |
| 1122 | wxFileDialog dialog(this, "Open a PNG file", "", "", "PNG files (*.png)|*.png", 0); |
| 1123 | #endif |
| 1124 | |
| 1125 | if (dialog.ShowModal() != wxID_OK) |
| 1126 | { |
| 1127 | wxLogMessage( _T("Aborted file open") ); |
| 1128 | return; |
| 1129 | } |
| 1130 | |
| 1131 | if (dialog.GetPath().IsEmpty()) |
| 1132 | { |
| 1133 | wxLogMessage( _T("Returned empty string.") ); |
| 1134 | return; |
| 1135 | } |
| 1136 | |
| 1137 | if (!wxFileExists(dialog.GetPath())) |
| 1138 | { |
| 1139 | wxLogMessage( _T("File doesn't exist.") ); |
| 1140 | return; |
| 1141 | } |
| 1142 | |
| 1143 | wxImage image; |
| 1144 | image.LoadFile( dialog.GetPath(), |
| 1145 | #ifdef __WXMSW__ |
| 1146 | wxBITMAP_TYPE_BMP |
| 1147 | #else |
| 1148 | wxBITMAP_TYPE_PNG |
| 1149 | #endif |
| 1150 | ); |
| 1151 | if (!image.Ok()) |
| 1152 | { |
| 1153 | wxLogError( _T("Invalid image file...") ); |
| 1154 | return; |
| 1155 | } |
| 1156 | |
| 1157 | wxLogStatus( _T("Decoding image file...") ); |
| 1158 | wxYield(); |
| 1159 | |
| 1160 | wxBitmap bitmap( image.ConvertToBitmap() ); |
| 1161 | |
| 1162 | if ( !wxTheClipboard->Open() ) |
| 1163 | { |
| 1164 | wxLogError(_T("Can't open clipboard.")); |
| 1165 | |
| 1166 | return; |
| 1167 | } |
| 1168 | |
| 1169 | wxLogMessage( _T("Creating wxBitmapDataObject...") ); |
| 1170 | wxYield(); |
| 1171 | |
| 1172 | if ( !wxTheClipboard->AddData(new wxBitmapDataObject(bitmap)) ) |
| 1173 | { |
| 1174 | wxLogError(_T("Can't copy image to the clipboard.")); |
| 1175 | } |
| 1176 | else |
| 1177 | { |
| 1178 | wxLogMessage(_T("Image has been put on the clipboard.") ); |
| 1179 | wxLogMessage(_T("You can paste it now and look at it.") ); |
| 1180 | } |
| 1181 | |
| 1182 | wxTheClipboard->Close(); |
| 1183 | } |
| 1184 | |
| 1185 | void DnDFrame::OnPasteBitmap(wxCommandEvent& WXUNUSED(event)) |
| 1186 | { |
| 1187 | if ( !wxTheClipboard->Open() ) |
| 1188 | { |
| 1189 | wxLogError(_T("Can't open clipboard.")); |
| 1190 | |
| 1191 | return; |
| 1192 | } |
| 1193 | |
| 1194 | if ( !wxTheClipboard->IsSupported(wxDF_BITMAP) ) |
| 1195 | { |
| 1196 | wxLogWarning(_T("No bitmap on clipboard")); |
| 1197 | |
| 1198 | wxTheClipboard->Close(); |
| 1199 | return; |
| 1200 | } |
| 1201 | |
| 1202 | wxBitmapDataObject data; |
| 1203 | if ( !wxTheClipboard->GetData(data) ) |
| 1204 | { |
| 1205 | wxLogError(_T("Can't paste bitmap from the clipboard")); |
| 1206 | } |
| 1207 | else |
| 1208 | { |
| 1209 | const wxBitmap& bmp = data.GetBitmap(); |
| 1210 | |
| 1211 | wxLogMessage(_T("Bitmap %dx%d pasted from the clipboard"), |
| 1212 | bmp.GetWidth(), bmp.GetHeight()); |
| 1213 | ShowBitmap(bmp); |
| 1214 | } |
| 1215 | |
| 1216 | wxTheClipboard->Close(); |
| 1217 | } |
| 1218 | |
| 1219 | #ifdef USE_METAFILES |
| 1220 | |
| 1221 | void DnDFrame::OnPasteMetafile(wxCommandEvent& WXUNUSED(event)) |
| 1222 | { |
| 1223 | if ( !wxTheClipboard->Open() ) |
| 1224 | { |
| 1225 | wxLogError(_T("Can't open clipboard.")); |
| 1226 | |
| 1227 | return; |
| 1228 | } |
| 1229 | |
| 1230 | if ( !wxTheClipboard->IsSupported(wxDF_METAFILE) ) |
| 1231 | { |
| 1232 | wxLogWarning(_T("No metafile on clipboard")); |
| 1233 | } |
| 1234 | else |
| 1235 | { |
| 1236 | wxMetaFileDataObject data; |
| 1237 | if ( !wxTheClipboard->GetData(data) ) |
| 1238 | { |
| 1239 | wxLogError(_T("Can't paste metafile from the clipboard")); |
| 1240 | } |
| 1241 | else |
| 1242 | { |
| 1243 | const wxMetaFile& mf = data.GetMetafile(); |
| 1244 | |
| 1245 | wxLogMessage(_T("Metafile %dx%d pasted from the clipboard"), |
| 1246 | mf.GetWidth(), mf.GetHeight()); |
| 1247 | |
| 1248 | ShowMetaFile(mf); |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | wxTheClipboard->Close(); |
| 1253 | } |
| 1254 | |
| 1255 | #endif // USE_METAFILES |
| 1256 | |
| 1257 | // ---------------------------------------------------------------------------- |
| 1258 | // file clipboard |
| 1259 | // ---------------------------------------------------------------------------- |
| 1260 | |
| 1261 | void DnDFrame::OnCopyFiles(wxCommandEvent& WXUNUSED(event)) |
| 1262 | { |
| 1263 | #ifdef __WXMSW__ |
| 1264 | wxFileDialog dialog(this, "Select a file to copy", "", "", |
| 1265 | "All files (*.*)|*.*", 0); |
| 1266 | |
| 1267 | wxArrayString filenames; |
| 1268 | while ( dialog.ShowModal() == wxID_OK ) |
| 1269 | { |
| 1270 | filenames.Add(dialog.GetPath()); |
| 1271 | } |
| 1272 | |
| 1273 | if ( !filenames.IsEmpty() ) |
| 1274 | { |
| 1275 | wxFileDataObject *dobj = new wxFileDataObject; |
| 1276 | size_t count = filenames.GetCount(); |
| 1277 | for ( size_t n = 0; n < count; n++ ) |
| 1278 | { |
| 1279 | dobj->AddFile(filenames[n]); |
| 1280 | } |
| 1281 | |
| 1282 | wxClipboardLocker locker; |
| 1283 | if ( !locker ) |
| 1284 | { |
| 1285 | wxLogError("Can't open clipboard"); |
| 1286 | } |
| 1287 | else |
| 1288 | { |
| 1289 | if ( !wxTheClipboard->AddData(dobj) ) |
| 1290 | { |
| 1291 | wxLogError("Can't copy file(s) to the clipboard"); |
| 1292 | } |
| 1293 | else |
| 1294 | { |
| 1295 | wxLogStatus(this, "%d file%s copied to the clipboard", |
| 1296 | count, count == 1 ? "" : "s"); |
| 1297 | } |
| 1298 | } |
| 1299 | } |
| 1300 | else |
| 1301 | { |
| 1302 | wxLogStatus(this, "Aborted"); |
| 1303 | } |
| 1304 | #else // !MSW |
| 1305 | wxLogError("Sorry, not implemented"); |
| 1306 | #endif // MSW/!MSW |
| 1307 | } |
| 1308 | |
| 1309 | // --------------------------------------------------------------------------- |
| 1310 | // text clipboard |
| 1311 | // --------------------------------------------------------------------------- |
| 1312 | |
| 1313 | void DnDFrame::OnCopy(wxCommandEvent& WXUNUSED(event)) |
| 1314 | { |
| 1315 | if ( !wxTheClipboard->Open() ) |
| 1316 | { |
| 1317 | wxLogError(_T("Can't open clipboard.")); |
| 1318 | |
| 1319 | return; |
| 1320 | } |
| 1321 | |
| 1322 | if ( !wxTheClipboard->AddData(new wxTextDataObject(m_strText)) ) |
| 1323 | { |
| 1324 | wxLogError(_T("Can't copy data to the clipboard")); |
| 1325 | } |
| 1326 | else |
| 1327 | { |
| 1328 | wxLogMessage(_T("Text '%s' put on the clipboard"), m_strText.c_str()); |
| 1329 | } |
| 1330 | |
| 1331 | wxTheClipboard->Close(); |
| 1332 | } |
| 1333 | |
| 1334 | void DnDFrame::OnPaste(wxCommandEvent& WXUNUSED(event)) |
| 1335 | { |
| 1336 | if ( !wxTheClipboard->Open() ) |
| 1337 | { |
| 1338 | wxLogError(_T("Can't open clipboard.")); |
| 1339 | |
| 1340 | return; |
| 1341 | } |
| 1342 | |
| 1343 | if ( !wxTheClipboard->IsSupported(wxDF_TEXT) ) |
| 1344 | { |
| 1345 | wxLogWarning(_T("No text data on clipboard")); |
| 1346 | |
| 1347 | wxTheClipboard->Close(); |
| 1348 | return; |
| 1349 | } |
| 1350 | |
| 1351 | wxTextDataObject text; |
| 1352 | if ( !wxTheClipboard->GetData(text) ) |
| 1353 | { |
| 1354 | wxLogError(_T("Can't paste data from the clipboard")); |
| 1355 | } |
| 1356 | else |
| 1357 | { |
| 1358 | wxLogMessage(_T("Text '%s' pasted from the clipboard"), |
| 1359 | text.GetText().c_str()); |
| 1360 | } |
| 1361 | |
| 1362 | wxTheClipboard->Close(); |
| 1363 | } |
| 1364 | |
| 1365 | // ---------------------------------------------------------------------------- |
| 1366 | // Notifications called by the base class |
| 1367 | // ---------------------------------------------------------------------------- |
| 1368 | |
| 1369 | bool DnDText::OnDropText(wxCoord, wxCoord, const wxString& text) |
| 1370 | { |
| 1371 | m_pOwner->Append(text); |
| 1372 | |
| 1373 | return TRUE; |
| 1374 | } |
| 1375 | |
| 1376 | bool DnDFile::OnDropFiles(wxCoord, wxCoord, const wxArrayString& filenames) |
| 1377 | { |
| 1378 | size_t nFiles = filenames.GetCount(); |
| 1379 | wxString str; |
| 1380 | str.Printf( _T("%d files dropped"), nFiles); |
| 1381 | m_pOwner->Append(str); |
| 1382 | for ( size_t n = 0; n < nFiles; n++ ) { |
| 1383 | m_pOwner->Append(filenames[n]); |
| 1384 | } |
| 1385 | |
| 1386 | return TRUE; |
| 1387 | } |
| 1388 | |
| 1389 | // ---------------------------------------------------------------------------- |
| 1390 | // DnDShapeDialog |
| 1391 | // ---------------------------------------------------------------------------- |
| 1392 | |
| 1393 | DnDShapeDialog::DnDShapeDialog(wxFrame *parent, DnDShape *shape) |
| 1394 | { |
| 1395 | m_shape = shape; |
| 1396 | |
| 1397 | LoadFromResource(parent, "dialogShape"); |
| 1398 | |
| 1399 | m_textX = (wxTextCtrl *)wxFindWindowByName("textX", this); |
| 1400 | m_textY = (wxTextCtrl *)wxFindWindowByName("textY", this); |
| 1401 | m_textW = (wxTextCtrl *)wxFindWindowByName("textW", this); |
| 1402 | m_textH = (wxTextCtrl *)wxFindWindowByName("textH", this); |
| 1403 | |
| 1404 | m_radio = (wxRadioBox *)wxFindWindowByName("radio", this); |
| 1405 | } |
| 1406 | |
| 1407 | DnDShape *DnDShapeDialog::GetShape() const |
| 1408 | { |
| 1409 | switch ( m_shapeKind ) |
| 1410 | { |
| 1411 | default: |
| 1412 | case DnDShape::None: return NULL; |
| 1413 | case DnDShape::Triangle: return new DnDTriangularShape(m_pos, m_size, m_col); |
| 1414 | case DnDShape::Rectangle: return new DnDRectangularShape(m_pos, m_size, m_col); |
| 1415 | case DnDShape::Ellipse: return new DnDEllipticShape(m_pos, m_size, m_col); |
| 1416 | } |
| 1417 | } |
| 1418 | |
| 1419 | bool DnDShapeDialog::TransferDataToWindow() |
| 1420 | { |
| 1421 | |
| 1422 | if ( m_shape ) |
| 1423 | { |
| 1424 | m_radio->SetSelection(m_shape->GetKind()); |
| 1425 | m_pos = m_shape->GetPosition(); |
| 1426 | m_size = m_shape->GetSize(); |
| 1427 | m_col = m_shape->GetColour(); |
| 1428 | } |
| 1429 | else |
| 1430 | { |
| 1431 | m_radio->SetSelection(DnDShape::None); |
| 1432 | m_pos = wxPoint(1, 1); |
| 1433 | m_size = wxSize(100, 100); |
| 1434 | } |
| 1435 | |
| 1436 | m_textX->SetValue(wxString() << m_pos.x); |
| 1437 | m_textY->SetValue(wxString() << m_pos.y); |
| 1438 | m_textW->SetValue(wxString() << m_size.x); |
| 1439 | m_textH->SetValue(wxString() << m_size.y); |
| 1440 | |
| 1441 | return TRUE; |
| 1442 | } |
| 1443 | |
| 1444 | bool DnDShapeDialog::TransferDataFromWindow() |
| 1445 | { |
| 1446 | m_shapeKind = (DnDShape::Kind)m_radio->GetSelection(); |
| 1447 | |
| 1448 | m_pos.x = atoi(m_textX->GetValue()); |
| 1449 | m_pos.y = atoi(m_textY->GetValue()); |
| 1450 | m_size.x = atoi(m_textW->GetValue()); |
| 1451 | m_size.y = atoi(m_textH->GetValue()); |
| 1452 | |
| 1453 | if ( !m_pos.x || !m_pos.y || !m_size.x || !m_size.y ) |
| 1454 | { |
| 1455 | wxMessageBox("All sizes and positions should be non null!", |
| 1456 | "Invalid shape", wxICON_HAND | wxOK, this); |
| 1457 | |
| 1458 | return FALSE; |
| 1459 | } |
| 1460 | |
| 1461 | return TRUE; |
| 1462 | } |
| 1463 | |
| 1464 | void DnDShapeDialog::OnColour(wxCommandEvent& WXUNUSED(event)) |
| 1465 | { |
| 1466 | wxColourData data; |
| 1467 | data.SetChooseFull(TRUE); |
| 1468 | for (int i = 0; i < 16; i++) |
| 1469 | { |
| 1470 | wxColour colour(i*16, i*16, i*16); |
| 1471 | data.SetCustomColour(i, colour); |
| 1472 | } |
| 1473 | |
| 1474 | wxColourDialog dialog(this, &data); |
| 1475 | if ( dialog.ShowModal() == wxID_OK ) |
| 1476 | { |
| 1477 | m_col = dialog.GetColourData().GetColour(); |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | // ---------------------------------------------------------------------------- |
| 1482 | // DnDShapeFrame |
| 1483 | // ---------------------------------------------------------------------------- |
| 1484 | |
| 1485 | DnDShapeFrame *DnDShapeFrame::ms_lastDropTarget = NULL; |
| 1486 | |
| 1487 | DnDShapeFrame::DnDShapeFrame(wxFrame *parent) |
| 1488 | : wxFrame(parent, -1, "Shape Frame", |
| 1489 | wxDefaultPosition, wxSize(250, 150)) |
| 1490 | { |
| 1491 | CreateStatusBar(); |
| 1492 | |
| 1493 | wxMenu *menuShape = new wxMenu; |
| 1494 | menuShape->Append(Menu_Shape_New, "&New default shape\tCtrl-S"); |
| 1495 | menuShape->Append(Menu_Shape_Edit, "&Edit shape\tCtrl-E"); |
| 1496 | menuShape->AppendSeparator(); |
| 1497 | menuShape->Append(Menu_Shape_Clear, "&Clear shape\tCtrl-L"); |
| 1498 | |
| 1499 | wxMenu *menuClipboard = new wxMenu; |
| 1500 | menuClipboard->Append(Menu_ShapeClipboard_Copy, "&Copy\tCtrl-C"); |
| 1501 | menuClipboard->Append(Menu_ShapeClipboard_Paste, "&Paste\tCtrl-V"); |
| 1502 | |
| 1503 | wxMenuBar *menubar = new wxMenuBar; |
| 1504 | menubar->Append(menuShape, "&Shape"); |
| 1505 | menubar->Append(menuClipboard, "&Clipboard"); |
| 1506 | |
| 1507 | SetMenuBar(menubar); |
| 1508 | |
| 1509 | SetStatusText("Press Ctrl-S to create a new shape"); |
| 1510 | |
| 1511 | SetDropTarget(new DnDShapeDropTarget(this)); |
| 1512 | |
| 1513 | m_shape = NULL; |
| 1514 | |
| 1515 | SetBackgroundColour(*wxWHITE); |
| 1516 | } |
| 1517 | |
| 1518 | DnDShapeFrame::~DnDShapeFrame() |
| 1519 | { |
| 1520 | if (m_shape) |
| 1521 | delete m_shape; |
| 1522 | } |
| 1523 | |
| 1524 | void DnDShapeFrame::SetShape(DnDShape *shape) |
| 1525 | { |
| 1526 | if (m_shape) |
| 1527 | delete m_shape; |
| 1528 | m_shape = shape; |
| 1529 | Refresh(); |
| 1530 | } |
| 1531 | |
| 1532 | // callbacks |
| 1533 | void DnDShapeFrame::OnDrag(wxMouseEvent& event) |
| 1534 | { |
| 1535 | if ( !m_shape ) |
| 1536 | { |
| 1537 | event.Skip(); |
| 1538 | |
| 1539 | return; |
| 1540 | } |
| 1541 | |
| 1542 | // start drag operation |
| 1543 | DnDShapeDataObject shapeData(m_shape); |
| 1544 | wxDropSource source(shapeData, this); |
| 1545 | |
| 1546 | const char *pc = NULL; |
| 1547 | switch ( source.DoDragDrop(TRUE) ) |
| 1548 | { |
| 1549 | default: |
| 1550 | case wxDragError: |
| 1551 | wxLogError("An error occured during drag and drop operation"); |
| 1552 | break; |
| 1553 | |
| 1554 | case wxDragNone: |
| 1555 | SetStatusText("Nothing happened"); |
| 1556 | break; |
| 1557 | |
| 1558 | case wxDragCopy: |
| 1559 | pc = "copied"; |
| 1560 | break; |
| 1561 | |
| 1562 | case wxDragMove: |
| 1563 | pc = "moved"; |
| 1564 | if ( ms_lastDropTarget != this ) |
| 1565 | { |
| 1566 | // don't delete the shape if we dropped it on ourselves! |
| 1567 | SetShape(NULL); |
| 1568 | } |
| 1569 | break; |
| 1570 | |
| 1571 | case wxDragCancel: |
| 1572 | SetStatusText("Drag and drop operation cancelled"); |
| 1573 | break; |
| 1574 | } |
| 1575 | |
| 1576 | if ( pc ) |
| 1577 | { |
| 1578 | SetStatusText(wxString("Shape successfully ") + pc); |
| 1579 | } |
| 1580 | //else: status text already set |
| 1581 | } |
| 1582 | |
| 1583 | void DnDShapeFrame::OnDrop(wxCoord x, wxCoord y, DnDShape *shape) |
| 1584 | { |
| 1585 | ms_lastDropTarget = this; |
| 1586 | |
| 1587 | wxPoint pt(x, y); |
| 1588 | |
| 1589 | wxString s; |
| 1590 | s.Printf("Shape dropped at (%ld, %ld)", pt.x, pt.y); |
| 1591 | SetStatusText(s); |
| 1592 | |
| 1593 | shape->Move(pt); |
| 1594 | SetShape(shape); |
| 1595 | } |
| 1596 | |
| 1597 | void DnDShapeFrame::OnEditShape(wxCommandEvent& event) |
| 1598 | { |
| 1599 | DnDShapeDialog dlg(this, m_shape); |
| 1600 | if ( dlg.ShowModal() == wxID_OK ) |
| 1601 | { |
| 1602 | SetShape(dlg.GetShape()); |
| 1603 | |
| 1604 | if ( m_shape ) |
| 1605 | { |
| 1606 | SetStatusText("You can now drag the shape to another frame"); |
| 1607 | } |
| 1608 | } |
| 1609 | } |
| 1610 | |
| 1611 | void DnDShapeFrame::OnNewShape(wxCommandEvent& event) |
| 1612 | { |
| 1613 | SetShape(new DnDEllipticShape(wxPoint(10, 10), wxSize(80, 60), *wxRED)); |
| 1614 | |
| 1615 | SetStatusText("You can now drag the shape to another frame"); |
| 1616 | } |
| 1617 | |
| 1618 | void DnDShapeFrame::OnClearShape(wxCommandEvent& event) |
| 1619 | { |
| 1620 | SetShape(NULL); |
| 1621 | } |
| 1622 | |
| 1623 | void DnDShapeFrame::OnCopyShape(wxCommandEvent& event) |
| 1624 | { |
| 1625 | if ( m_shape ) |
| 1626 | { |
| 1627 | wxClipboardLocker clipLocker; |
| 1628 | if ( !clipLocker ) |
| 1629 | { |
| 1630 | wxLogError("Can't open the clipboard"); |
| 1631 | |
| 1632 | return; |
| 1633 | } |
| 1634 | |
| 1635 | wxTheClipboard->AddData(new DnDShapeDataObject(m_shape)); |
| 1636 | } |
| 1637 | } |
| 1638 | |
| 1639 | void DnDShapeFrame::OnPasteShape(wxCommandEvent& event) |
| 1640 | { |
| 1641 | wxClipboardLocker clipLocker; |
| 1642 | if ( !clipLocker ) |
| 1643 | { |
| 1644 | wxLogError("Can't open the clipboard"); |
| 1645 | |
| 1646 | return; |
| 1647 | } |
| 1648 | |
| 1649 | DnDShapeDataObject shapeDataObject(NULL); |
| 1650 | if ( wxTheClipboard->GetData(shapeDataObject) ) |
| 1651 | { |
| 1652 | SetShape(shapeDataObject.GetShape()); |
| 1653 | } |
| 1654 | else |
| 1655 | { |
| 1656 | wxLogStatus("No shape on the clipboard"); |
| 1657 | } |
| 1658 | } |
| 1659 | |
| 1660 | void DnDShapeFrame::OnUpdateUICopy(wxUpdateUIEvent& event) |
| 1661 | { |
| 1662 | event.Enable( m_shape != NULL ); |
| 1663 | } |
| 1664 | |
| 1665 | void DnDShapeFrame::OnUpdateUIPaste(wxUpdateUIEvent& event) |
| 1666 | { |
| 1667 | event.Enable( wxTheClipboard->IsSupported(wxDataFormat(shapeFormatId)) ); |
| 1668 | } |
| 1669 | |
| 1670 | void DnDShapeFrame::OnPaint(wxPaintEvent& event) |
| 1671 | { |
| 1672 | if ( m_shape ) |
| 1673 | { |
| 1674 | wxPaintDC dc(this); |
| 1675 | |
| 1676 | m_shape->Draw(dc); |
| 1677 | } |
| 1678 | else |
| 1679 | { |
| 1680 | event.Skip(); |
| 1681 | } |
| 1682 | } |
| 1683 | |
| 1684 | // ---------------------------------------------------------------------------- |
| 1685 | // DnDShape |
| 1686 | // ---------------------------------------------------------------------------- |
| 1687 | |
| 1688 | DnDShape *DnDShape::New(const void *buf) |
| 1689 | { |
| 1690 | const ShapeDump& dump = *(const ShapeDump *)buf; |
| 1691 | switch ( dump.k ) |
| 1692 | { |
| 1693 | case Triangle: |
| 1694 | return new DnDTriangularShape(wxPoint(dump.x, dump.y), |
| 1695 | wxSize(dump.w, dump.h), |
| 1696 | wxColour(dump.r, dump.g, dump.b)); |
| 1697 | |
| 1698 | case Rectangle: |
| 1699 | return new DnDRectangularShape(wxPoint(dump.x, dump.y), |
| 1700 | wxSize(dump.w, dump.h), |
| 1701 | wxColour(dump.r, dump.g, dump.b)); |
| 1702 | |
| 1703 | case Ellipse: |
| 1704 | return new DnDEllipticShape(wxPoint(dump.x, dump.y), |
| 1705 | wxSize(dump.w, dump.h), |
| 1706 | wxColour(dump.r, dump.g, dump.b)); |
| 1707 | |
| 1708 | default: |
| 1709 | wxFAIL_MSG("invalid shape!"); |
| 1710 | return NULL; |
| 1711 | } |
| 1712 | } |
| 1713 | |
| 1714 | // ---------------------------------------------------------------------------- |
| 1715 | // DnDShapeDataObject |
| 1716 | // ---------------------------------------------------------------------------- |
| 1717 | |
| 1718 | #ifdef USE_METAFILES |
| 1719 | |
| 1720 | void DnDShapeDataObject::CreateMetaFile() const |
| 1721 | { |
| 1722 | wxPoint pos = m_shape->GetPosition(); |
| 1723 | wxSize size = m_shape->GetSize(); |
| 1724 | |
| 1725 | wxMetaFileDC dcMF(wxEmptyString, pos.x + size.x, pos.y + size.y); |
| 1726 | |
| 1727 | m_shape->Draw(dcMF); |
| 1728 | |
| 1729 | wxMetafile *mf = dcMF.Close(); |
| 1730 | |
| 1731 | DnDShapeDataObject *self = (DnDShapeDataObject *)this; // const_cast |
| 1732 | self->m_dobjMetaFile.SetMetafile(*mf); |
| 1733 | self->m_hasMetaFile = TRUE; |
| 1734 | |
| 1735 | delete mf; |
| 1736 | } |
| 1737 | |
| 1738 | #endif // Windows |
| 1739 | |
| 1740 | void DnDShapeDataObject::CreateBitmap() const |
| 1741 | { |
| 1742 | wxPoint pos = m_shape->GetPosition(); |
| 1743 | wxSize size = m_shape->GetSize(); |
| 1744 | int x = pos.x + size.x, |
| 1745 | y = pos.y + size.y; |
| 1746 | wxBitmap bitmap(x, y); |
| 1747 | wxMemoryDC dc; |
| 1748 | dc.SelectObject(bitmap); |
| 1749 | dc.SetBrush(wxBrush("white", wxSOLID)); |
| 1750 | dc.Clear(); |
| 1751 | m_shape->Draw(dc); |
| 1752 | dc.SelectObject(wxNullBitmap); |
| 1753 | |
| 1754 | DnDShapeDataObject *self = (DnDShapeDataObject *)this; // const_cast |
| 1755 | self->m_dobjBitmap.SetBitmap(bitmap); |
| 1756 | self->m_hasBitmap = TRUE; |
| 1757 | } |
| 1758 | |
| 1759 | // ---------------------------------------------------------------------------- |
| 1760 | // global functions |
| 1761 | // ---------------------------------------------------------------------------- |
| 1762 | |
| 1763 | static void ShowBitmap(const wxBitmap& bitmap) |
| 1764 | { |
| 1765 | wxFrame *frame = new wxFrame(NULL, -1, _T("Bitmap view")); |
| 1766 | frame->CreateStatusBar(); |
| 1767 | DnDCanvasBitmap *canvas = new DnDCanvasBitmap(frame); |
| 1768 | canvas->SetBitmap(bitmap); |
| 1769 | |
| 1770 | int w = bitmap.GetWidth(), |
| 1771 | h = bitmap.GetHeight(); |
| 1772 | frame->SetStatusText(wxString::Format(_T("%dx%d"), w, h)); |
| 1773 | |
| 1774 | frame->SetClientSize(w > 100 ? 100 : w, h > 100 ? 100 : h); |
| 1775 | frame->Show(TRUE); |
| 1776 | } |
| 1777 | |
| 1778 | #ifdef USE_METAFILES |
| 1779 | |
| 1780 | static void ShowMetaFile(const wxMetaFile& metafile) |
| 1781 | { |
| 1782 | wxFrame *frame = new wxFrame(NULL, -1, _T("Metafile view")); |
| 1783 | frame->CreateStatusBar(); |
| 1784 | DnDCanvasMetafile *canvas = new DnDCanvasMetafile(frame); |
| 1785 | canvas->SetMetafile(metafile); |
| 1786 | |
| 1787 | wxSize size = metafile.GetSize(); |
| 1788 | frame->SetStatusText(wxString::Format(_T("%dx%d"), size.x, size.y)); |
| 1789 | |
| 1790 | frame->SetClientSize(size.x > 100 ? 100 : size.x, |
| 1791 | size.y > 100 ? 100 : size.y); |
| 1792 | frame->Show(); |
| 1793 | } |
| 1794 | |
| 1795 | #endif // USE_METAFILES |