src/univ/themes/metal.cpp

   1 // Name:        univ/themes/metal.cpp
   2 // Purpose:     wxUniversal theme implementing Win32-like LNF
   3 // Author:      Vadim Zeitlin, Robert Roebling
   4 // Modified by:
   5 // Created:     06.08.00
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ===========================================================================
  12 // declarations
  13 // ===========================================================================
  14
  15 // ---------------------------------------------------------------------------
  16 // headers
  17 // ---------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/timer.h"
  28     #include "wx/intl.h"
  29     #include "wx/dc.h"
  30     #include "wx/window.h"
  31
  32     #include "wx/dcmemory.h"
  33
  34     #include "wx/button.h"
  35     #include "wx/listbox.h"
  36     #include "wx/checklst.h"
  37     #include "wx/combobox.h"
  38     #include "wx/scrolbar.h"
  39     #include "wx/slider.h"
  40     #include "wx/textctrl.h"
  41     #include "wx/toolbar.h"
  42
  43     #ifdef __WXMSW__
  44         // for COLOR_* constants
  45         #include "wx/msw/private.h"
  46     #endif
  47 #endif // WX_PRECOMP
  48
  49 #include "wx/notebook.h"
  50 #include "wx/spinbutt.h"
  51 #include "wx/settings.h"
  52 #include "wx/menu.h"
  53 #include "wx/artprov.h"
  54 #include "wx/toplevel.h"
  55
  56 #include "wx/univ/scrtimer.h"
  57 #include "wx/univ/renderer.h"
  58 #include "wx/univ/inphand.h"
  59 #include "wx/univ/colschem.h"
  60 #include "wx/univ/theme.h"
  61
  62 // wxMetalRenderer: draw the GUI elements in Metal style
  63 // ----------------------------------------------------------------------------
  64
  65 class wxMetalRenderer : public wxDelegateRenderer
  66 {
  67     // FIXME cut'n'paste from Win32
  68     enum wxArrowDirection
  69     {
  70         Arrow_Left,
  71         Arrow_Right,
  72         Arrow_Up,
  73         Arrow_Down,
  74         Arrow_Max
  75     };
  76
  77     enum wxArrowStyle
  78     {
  79         Arrow_Normal,
  80         Arrow_Disabled,
  81         Arrow_Pressed,
  82         Arrow_Inverted,
  83         Arrow_InvertedDisabled,
  84         Arrow_StateMax
  85     };
  86 public:
  87     wxMetalRenderer(wxRenderer *renderer, wxColourScheme* scheme);
  88
  89     virtual void DrawButtonSurface(wxDC& dc,
  90                                    const wxColour& WXUNUSED(col),
  91                                    const wxRect& rect,
  92                                    int WXUNUSED(flags))
  93         { DrawMetal(dc, rect); }
  94
  95     virtual void DrawScrollbarThumb(wxDC& dc,
  96                                     wxOrientation orient,
  97                                     const wxRect& rect,
  98                                     int flags);
  99
 100     virtual void DrawScrollbarShaft(wxDC& dc,
 101                                     wxOrientation orient,
 102                                     const wxRect& rectBar,
 103                                     int flags);
 104
 105     virtual void GetComboBitmaps(wxBitmap *bmpNormal,
 106                                  wxBitmap *bmpFocus,
 107                                  wxBitmap *bmpPressed,
 108                                  wxBitmap *bmpDisabled);
 109
 110     virtual void DrawArrow(wxDC& dc,
 111                            wxDirection dir,
 112                            const wxRect& rect,
 113                            int flags = 0);
 114 protected:
 115     void DrawArrowButton(wxDC& dc,
 116                          const wxRect& rectAll,
 117                          wxArrowDirection arrowDir,
 118                          wxArrowStyle arrowStyle);
 119
 120     void DrawRect(wxDC& dc, wxRect *rect, const wxPen& pen);
 121
 122     void DrawShadedRect(wxDC& dc, wxRect *rect,
 123                         const wxPen& pen1, const wxPen& pen2);
 124
 125     void DrawArrowBorder(wxDC& dc, wxRect *rect, bool isPressed = false);
 126
 127     void DrawArrow(wxDC& dc, const wxRect& rect,
 128                    wxArrowDirection arrowDir, wxArrowStyle arrowStyle);
 129
 130     void DrawMetal(wxDC &dc, const wxRect &rect );
 131 private:
 132     wxPen m_penBlack,
 133           m_penDarkGrey,
 134           m_penLightGrey,
 135           m_penHighlight;
 136
 137     wxBitmap m_bmpArrows[Arrow_StateMax][Arrow_Max];
 138 };
 139
 140 // ----------------------------------------------------------------------------
 141 // wxMetalTheme
 142 // ----------------------------------------------------------------------------
 143
 144 WX_DEFINE_ARRAY_PTR(wxInputHandler *, wxArrayHandlers);
 145
 146 class wxMetalTheme : public wxTheme
 147 {
 148 public:
 149     wxMetalTheme();
 150     virtual ~wxMetalTheme();
 151
 152     virtual wxRenderer *GetRenderer();
 153     virtual wxArtProvider *GetArtProvider();
 154     virtual wxInputHandler *GetInputHandler(const wxString& control);
 155     virtual wxColourScheme *GetColourScheme();
 156 private:
 157     bool GetOrCreateTheme()
 158     {
 159         if ( !m_win32Theme )
 160             m_win32Theme = wxTheme::Create( wxT("win32") );
 161         return m_win32Theme != NULL;
 162     }
 163 private:
 164     wxTheme *m_win32Theme;
 165     wxMetalRenderer *m_renderer;
 166
 167     WX_DECLARE_THEME(Metal)
 168 };
 169
 170 // ============================================================================
 171 // implementation
 172 // ============================================================================
 173
 174 WX_IMPLEMENT_THEME(wxMetalTheme, Metal, wxTRANSLATE("Metal theme"));
 175
 176 // ----------------------------------------------------------------------------
 177 // wxMetalTheme
 178 // ----------------------------------------------------------------------------
 179
 180 wxMetalTheme::wxMetalTheme()
 181 {
 182     m_win32Theme = NULL;
 183     m_renderer = NULL;
 184 }
 185
 186 wxMetalTheme::~wxMetalTheme()
 187 {
 188     delete m_win32Theme;
 189     delete m_renderer;
 190 }
 191
 192 wxRenderer *wxMetalTheme::GetRenderer()
 193 {
 194     if ( !GetOrCreateTheme() )
 195         return 0;
 196     if ( !m_renderer )
 197         m_renderer = new wxMetalRenderer(m_win32Theme->GetRenderer(),
 198                                          m_win32Theme->GetColourScheme());
 199
 200     return m_renderer;
 201 }
 202
 203 wxArtProvider *wxMetalTheme::GetArtProvider()
 204 {
 205     if ( !GetOrCreateTheme() )
 206         return 0;
 207     return m_win32Theme->GetArtProvider();
 208 }
 209
 210 wxInputHandler *wxMetalTheme::GetInputHandler(const wxString& control)
 211 {
 212     if ( !GetOrCreateTheme() )
 213         return 0;
 214     return m_win32Theme->GetInputHandler(control);
 215 }
 216
 217 wxColourScheme *wxMetalTheme::GetColourScheme()
 218 {
 219     if ( !GetOrCreateTheme() )
 220         return 0;
 221     return m_win32Theme->GetColourScheme();
 222 }
 223
 224 // ----------------------------------------------------------------------------
 225 // wxMetalRenderer
 226 // ----------------------------------------------------------------------------
 227
 228 wxMetalRenderer::wxMetalRenderer(wxRenderer *renderer, wxColourScheme *scheme)
 229     : wxDelegateRenderer(renderer)
 230 {
 231     // init colours and pens
 232     m_penBlack = wxPen(wxSCHEME_COLOUR(scheme, SHADOW_DARK), 0, wxSOLID);
 233     m_penDarkGrey = wxPen(wxSCHEME_COLOUR(scheme, SHADOW_OUT), 0, wxSOLID);
 234     m_penLightGrey = wxPen(wxSCHEME_COLOUR(scheme, SHADOW_IN), 0, wxSOLID);
 235     m_penHighlight = wxPen(wxSCHEME_COLOUR(scheme, SHADOW_HIGHLIGHT), 0, wxSOLID);
 236
 237     // init the arrow bitmaps
 238     static const size_t ARROW_WIDTH = 7;
 239     static const size_t ARROW_LENGTH = 4;
 240
 241     wxMask *mask;
 242     wxMemoryDC dcNormal,
 243                dcDisabled,
 244                dcInverse;
 245     for ( size_t n = 0; n < Arrow_Max; n++ )
 246     {
 247         bool isVertical = n > Arrow_Right;
 248         int w, h;
 249         if ( isVertical )
 250         {
 251             w = ARROW_WIDTH;
 252             h = ARROW_LENGTH;
 253         }
 254         else
 255         {
 256             h = ARROW_WIDTH;
 257             w = ARROW_LENGTH;
 258         }
 259
 260         // disabled arrow is larger because of the shadow
 261         m_bmpArrows[Arrow_Normal][n].Create(w, h);
 262         m_bmpArrows[Arrow_Disabled][n].Create(w + 1, h + 1);
 263
 264         dcNormal.SelectObject(m_bmpArrows[Arrow_Normal][n]);
 265         dcDisabled.SelectObject(m_bmpArrows[Arrow_Disabled][n]);
 266
 267         dcNormal.SetBackground(*wxWHITE_BRUSH);
 268         dcDisabled.SetBackground(*wxWHITE_BRUSH);
 269         dcNormal.Clear();
 270         dcDisabled.Clear();
 271
 272         dcNormal.SetPen(m_penBlack);
 273         dcDisabled.SetPen(m_penDarkGrey);
 274
 275         // calculate the position of the point of the arrow
 276         wxCoord x1, y1;
 277         if ( isVertical )
 278         {
 279             x1 = (ARROW_WIDTH - 1)/2;
 280             y1 = n == Arrow_Up ? 0 : ARROW_LENGTH - 1;
 281         }
 282         else // horizontal
 283         {
 284             x1 = n == Arrow_Left ? 0 : ARROW_LENGTH - 1;
 285             y1 = (ARROW_WIDTH - 1)/2;
 286         }
 287
 288         wxCoord x2 = x1,
 289                 y2 = y1;
 290
 291         if ( isVertical )
 292             x2++;
 293         else
 294             y2++;
 295
 296         for ( size_t i = 0; i < ARROW_LENGTH; i++ )
 297         {
 298             dcNormal.DrawLine(x1, y1, x2, y2);
 299             dcDisabled.DrawLine(x1, y1, x2, y2);
 300
 301             if ( isVertical )
 302             {
 303                 x1--;
 304                 x2++;
 305
 306                 if ( n == Arrow_Up )
 307                 {
 308                     y1++;
 309                     y2++;
 310                 }
 311                 else // down arrow
 312                 {
 313                     y1--;
 314                     y2--;
 315                 }
 316             }
 317             else // left or right arrow
 318             {
 319                 y1--;
 320                 y2++;
 321
 322                 if ( n == Arrow_Left )
 323                 {
 324                     x1++;
 325                     x2++;
 326                 }
 327                 else
 328                 {
 329                     x1--;
 330                     x2--;
 331                 }
 332             }
 333         }
 334
 335         // draw the shadow for the disabled one
 336         dcDisabled.SetPen(m_penHighlight);
 337         switch ( n )
 338         {
 339             case Arrow_Left:
 340                 y1 += 2;
 341                 dcDisabled.DrawLine(x1, y1, x2, y2);
 342                 break;
 343
 344             case Arrow_Right:
 345                 x1 = ARROW_LENGTH - 1;
 346                 y1 = (ARROW_WIDTH - 1)/2 + 1;
 347                 x2 = 0;
 348                 y2 = ARROW_WIDTH;
 349                 dcDisabled.DrawLine(x1, y1, x2, y2);
 350                 dcDisabled.DrawLine(++x1, y1, x2, ++y2);
 351                 break;
 352
 353             case Arrow_Up:
 354                 x1 += 2;
 355                 dcDisabled.DrawLine(x1, y1, x2, y2);
 356                 break;
 357
 358             case Arrow_Down:
 359                 x1 = ARROW_WIDTH - 1;
 360                 y1 = 1;
 361                 x2 = (ARROW_WIDTH - 1)/2;
 362                 y2 = ARROW_LENGTH;
 363                 dcDisabled.DrawLine(x1, y1, x2, y2);
 364                 dcDisabled.DrawLine(++x1, y1, x2, ++y2);
 365                 break;
 366
 367         }
 368
 369         // create the inverted bitmap but only for the right arrow as we only
 370         // use it for the menus
 371         if ( n == Arrow_Right )
 372         {
 373             m_bmpArrows[Arrow_Inverted][n].Create(w, h);
 374             dcInverse.SelectObject(m_bmpArrows[Arrow_Inverted][n]);
 375             dcInverse.Clear();
 376             dcInverse.Blit(0, 0, w, h,
 377                           &dcNormal, 0, 0,
 378                           wxXOR);
 379             dcInverse.SelectObject(wxNullBitmap);
 380
 381             mask = new wxMask(m_bmpArrows[Arrow_Inverted][n], *wxBLACK);
 382             m_bmpArrows[Arrow_Inverted][n].SetMask(mask);
 383
 384             m_bmpArrows[Arrow_InvertedDisabled][n].Create(w, h);
 385             dcInverse.SelectObject(m_bmpArrows[Arrow_InvertedDisabled][n]);
 386             dcInverse.Clear();
 387             dcInverse.Blit(0, 0, w, h,
 388                           &dcDisabled, 0, 0,
 389                           wxXOR);
 390             dcInverse.SelectObject(wxNullBitmap);
 391
 392             mask = new wxMask(m_bmpArrows[Arrow_InvertedDisabled][n], *wxBLACK);
 393             m_bmpArrows[Arrow_InvertedDisabled][n].SetMask(mask);
 394         }
 395
 396         dcNormal.SelectObject(wxNullBitmap);
 397         dcDisabled.SelectObject(wxNullBitmap);
 398
 399         mask = new wxMask(m_bmpArrows[Arrow_Normal][n], *wxWHITE);
 400         m_bmpArrows[Arrow_Normal][n].SetMask(mask);
 401         mask = new wxMask(m_bmpArrows[Arrow_Disabled][n], *wxWHITE);
 402         m_bmpArrows[Arrow_Disabled][n].SetMask(mask);
 403
 404         m_bmpArrows[Arrow_Pressed][n] = m_bmpArrows[Arrow_Normal][n];
 405     }
 406 }
 407
 408 void wxMetalRenderer::DrawScrollbarThumb(wxDC& dc,
 409                                          wxOrientation WXUNUSED(orient),
 410                                          const wxRect& rect,
 411                                          int WXUNUSED(flags))
 412 {
 413     // we don't use the flags, the thumb never changes appearance
 414     wxRect rectThumb = rect;
 415     DrawArrowBorder(dc, &rectThumb);
 416     DrawMetal(dc, rectThumb);
 417 }
 418
 419 void wxMetalRenderer::DrawScrollbarShaft(wxDC& dc,
 420                                          wxOrientation WXUNUSED(orient),
 421                                          const wxRect& rectBar,
 422                                          int WXUNUSED(flags))
 423 {
 424     DrawMetal(dc, rectBar);
 425 }
 426
 427 void wxMetalRenderer::GetComboBitmaps(wxBitmap *bmpNormal,
 428                                       wxBitmap * WXUNUSED(bmpFocus),
 429                                       wxBitmap *bmpPressed,
 430                                       wxBitmap *bmpDisabled)
 431 {
 432     static const wxCoord widthCombo = 16;
 433     static const wxCoord heightCombo = 17;
 434
 435     wxMemoryDC dcMem;
 436
 437     if ( bmpNormal )
 438     {
 439         bmpNormal->Create(widthCombo, heightCombo);
 440         dcMem.SelectObject(*bmpNormal);
 441         DrawArrowButton(dcMem, wxRect(0, 0, widthCombo, heightCombo),
 442                         Arrow_Down, Arrow_Normal);
 443     }
 444
 445     if ( bmpPressed )
 446     {
 447         bmpPressed->Create(widthCombo, heightCombo);
 448         dcMem.SelectObject(*bmpPressed);
 449         DrawArrowButton(dcMem, wxRect(0, 0, widthCombo, heightCombo),
 450                         Arrow_Down, Arrow_Pressed);
 451     }
 452
 453     if ( bmpDisabled )
 454     {
 455         bmpDisabled->Create(widthCombo, heightCombo);
 456         dcMem.SelectObject(*bmpDisabled);
 457         DrawArrowButton(dcMem, wxRect(0, 0, widthCombo, heightCombo),
 458                         Arrow_Down, Arrow_Disabled);
 459     }
 460 }
 461
 462 void wxMetalRenderer::DrawArrow(wxDC& dc,
 463                                 wxDirection dir,
 464                                 const wxRect& rect,
 465                                 int flags)
 466 {
 467     // get the bitmap for this arrow
 468     wxArrowDirection arrowDir;
 469     switch ( dir )
 470     {
 471         case wxLEFT:    arrowDir = Arrow_Left; break;
 472         case wxRIGHT:   arrowDir = Arrow_Right; break;
 473         case wxUP:      arrowDir = Arrow_Up; break;
 474         case wxDOWN:    arrowDir = Arrow_Down; break;
 475
 476         default:
 477             wxFAIL_MSG(_T("unknown arrow direction"));
 478             return;
 479     }
 480
 481     wxArrowStyle arrowStyle;
 482     if ( flags & wxCONTROL_PRESSED )
 483     {
 484         // can't be pressed and disabled
 485         arrowStyle = Arrow_Pressed;
 486     }
 487     else
 488     {
 489         arrowStyle = flags & wxCONTROL_DISABLED ? Arrow_Disabled : Arrow_Normal;
 490     }
 491
 492     DrawArrowButton(dc, rect, arrowDir, arrowStyle);
 493 }
 494
 495 //
 496 // protected functions
 497 //
 498
 499 void wxMetalRenderer::DrawArrowButton(wxDC& dc,
 500                                       const wxRect& rectAll,
 501                                       wxArrowDirection arrowDir,
 502                                       wxArrowStyle arrowStyle)
 503 {
 504     wxRect rect = rectAll;
 505     DrawMetal( dc, rect );
 506     DrawArrowBorder(dc, &rect, arrowStyle == Arrow_Pressed);
 507     DrawArrow(dc, rect, arrowDir, arrowStyle);
 508 }
 509
 510 void wxMetalRenderer::DrawRect(wxDC& dc, wxRect *rect, const wxPen& pen)
 511 {
 512     // draw
 513     dc.SetPen(pen);
 514     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 515     dc.DrawRectangle(*rect);
 516
 517     // adjust the rect
 518     rect->Inflate(-1);
 519 }
 520
 521 void wxMetalRenderer::DrawShadedRect(wxDC& dc, wxRect *rect,
 522                                      const wxPen& pen1, const wxPen& pen2)
 523 {
 524     // draw the rectangle
 525     dc.SetPen(pen1);
 526     dc.DrawLine(rect->GetLeft(), rect->GetTop(),
 527                 rect->GetLeft(), rect->GetBottom());
 528     dc.DrawLine(rect->GetLeft() + 1, rect->GetTop(),
 529                 rect->GetRight(), rect->GetTop());
 530     dc.SetPen(pen2);
 531     dc.DrawLine(rect->GetRight(), rect->GetTop(),
 532                 rect->GetRight(), rect->GetBottom());
 533     dc.DrawLine(rect->GetLeft(), rect->GetBottom(),
 534                 rect->GetRight() + 1, rect->GetBottom());
 535
 536     // adjust the rect
 537     rect->Inflate(-1);
 538 }
 539
 540 void wxMetalRenderer::DrawArrowBorder(wxDC& dc, wxRect *rect, bool isPressed)
 541 {
 542     if ( isPressed )
 543     {
 544         DrawRect(dc, rect, m_penDarkGrey);
 545
 546         // the arrow is usually drawn inside border of width 2 and is offset by
 547         // another pixel in both directions when it's pressed - as the border
 548         // in this case is more narrow as well, we have to adjust rect like
 549         // this:
 550         rect->Inflate(-1);
 551         rect->x++;
 552         rect->y++;
 553     }
 554     else
 555     {
 556         DrawShadedRect(dc, rect, m_penLightGrey, m_penBlack);
 557         DrawShadedRect(dc, rect, m_penHighlight, m_penDarkGrey);
 558     }
 559 }
 560
 561 void wxMetalRenderer::DrawArrow(wxDC& dc,
 562                                 const wxRect& rect,
 563                                 wxArrowDirection arrowDir,
 564                                 wxArrowStyle arrowStyle)
 565 {
 566     const wxBitmap& bmp = m_bmpArrows[arrowStyle][arrowDir];
 567
 568     // under Windows the arrows always have the same size so just centre it in
 569     // the provided rectangle
 570     wxCoord x = rect.x + (rect.width - bmp.GetWidth()) / 2,
 571             y = rect.y + (rect.height - bmp.GetHeight()) / 2;
 572
 573     // Windows does it like this...
 574     if ( arrowDir == Arrow_Left )
 575         x--;
 576
 577     // draw it
 578     dc.DrawBitmap(bmp, x, y, true /* use mask */);
 579 }
 580
 581 // ----------------------------------------------------------------------------
 582 // metal gradient
 583 // ----------------------------------------------------------------------------
 584
 585 void wxMetalRenderer::DrawMetal(wxDC &dc, const wxRect &rect )
 586 {
 587     dc.SetPen(*wxTRANSPARENT_PEN);
 588     for (int y = rect.y; y < rect.height+rect.y; y++)
 589     {
 590        unsigned char intens = (unsigned char)(230 + 80 * (rect.y-y) / rect.height);
 591        dc.SetBrush( wxBrush( wxColour(intens,intens,intens), wxSOLID ) );
 592        dc.DrawRectangle( rect.x, y, rect.width, 1 );
 593     }
 594 }