src/aui/tabartgtk.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/aui/tabartgtk.cpp
   3 // Purpose:     implementation of the wxAuiGTKTabArt
   4 // Author:      Jens Lody and Teodor Petrov
   5 // Modified by:
   6 // Created:     2012-03-23
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2012 Jens Lody <jens@codeblocks.org>
   9 //                  and Teodor Petrov
  10 // Licence:     wxWindows licence
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 // For compilers that support precompilation, includes "wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #if wxUSE_AUI
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/dc.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/settings.h"
  34     #include "wx/image.h"
  35 #endif
  36
  37 #include "wx/gtk/dc.h"
  38 #include "wx/gtk/private.h"
  39
  40 #include <gtk/gtk.h>
  41
  42 #include "wx/aui/auibook.h"
  43 #include "wx/aui/tabartgtk.h"
  44 #include "wx/renderer.h"
  45
  46 namespace
  47 {
  48
  49 static int s_CloseIconSize = 16; // default size
  50
  51 }
  52
  53 wxAuiGtkTabArt::wxAuiGtkTabArt()
  54
  55 {
  56 }
  57
  58 wxAuiTabArt* wxAuiGtkTabArt::Clone()
  59 {
  60     wxAuiGtkTabArt* clone = new wxAuiGtkTabArt();
  61
  62     clone->SetNormalFont(m_normalFont);
  63     clone->SetSelectedFont(m_normalFont);
  64     clone->SetMeasuringFont(m_normalFont);
  65
  66     return clone;
  67 }
  68
  69 void wxAuiGtkTabArt::DrawBackground(wxDC& dc, wxWindow* WXUNUSED(wnd), const wxRect& rect)
  70 {
  71     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
  72     GdkWindow* window = impldc->GetGDKWindow();
  73
  74     gtk_style_apply_default_background(gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget()),
  75                                        window,
  76                                        true,
  77                                        GTK_STATE_NORMAL,
  78                                        NULL,
  79                                        rect.x, rect.y, rect.width, rect.height);
  80 }
  81
  82 void wxAuiGtkTabArt::DrawBorder(wxDC& WXUNUSED(dc), wxWindow* wnd, const wxRect& rect)
  83 {
  84     int generic_border_width = wxAuiGenericTabArt::GetBorderWidth(wnd);
  85
  86     if (!wnd) return;
  87     if (!wnd->m_wxwindow) return;
  88     if (!gtk_widget_is_drawable(wnd->m_wxwindow)) return;
  89
  90     GtkStyle *style_notebook = gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget());
  91
  92     gtk_paint_box(style_notebook, wnd->GTKGetDrawingWindow(), GTK_STATE_NORMAL, GTK_SHADOW_OUT,
  93                   NULL, wnd->m_wxwindow,
  94                   const_cast<char*>("notebook"),
  95                   rect.x + generic_border_width + 1, rect.y + generic_border_width + 1,
  96                   rect.width - (generic_border_width + 1), rect.height - (generic_border_width + 1));
  97 }
  98
  99 void ButtonStateAndShadow(int button_state, GtkStateType &state, GtkShadowType &shadow)
 100 {
 101
 102     if (button_state & wxAUI_BUTTON_STATE_DISABLED)
 103     {
 104         state = GTK_STATE_INSENSITIVE;
 105         shadow = GTK_SHADOW_ETCHED_IN;
 106     }
 107     else if (button_state & wxAUI_BUTTON_STATE_HOVER)
 108     {
 109         state = GTK_STATE_PRELIGHT;
 110         shadow = GTK_SHADOW_OUT;
 111     }
 112     else if (button_state & wxAUI_BUTTON_STATE_PRESSED)
 113     {
 114         state = GTK_STATE_ACTIVE;
 115         shadow = GTK_SHADOW_IN;
 116     }
 117     else
 118     {
 119         state = GTK_STATE_NORMAL;
 120         shadow = GTK_SHADOW_OUT;
 121     }
 122 }
 123
 124 wxRect DrawCloseButton(wxDC& dc,
 125                        GtkWidget *widget,
 126                        int button_state,
 127                        wxRect const &in_rect,
 128                        int orientation,
 129                        GdkRectangle* clipRect)
 130 {
 131     GtkStyle *style_button = gtk_widget_get_style(wxGTKPrivate::GetButtonWidget());
 132     int xthickness = style_button->xthickness;
 133     int ythickness = style_button->ythickness;
 134
 135     wxBitmap bmp(gtk_widget_render_icon(widget, GTK_STOCK_CLOSE, GTK_ICON_SIZE_SMALL_TOOLBAR, "tab"));
 136
 137     if(bmp.GetWidth() != s_CloseIconSize || bmp.GetHeight() != s_CloseIconSize)
 138     {
 139         wxImage img = bmp.ConvertToImage();
 140         img.Rescale(s_CloseIconSize, s_CloseIconSize);
 141         bmp = img;
 142     }
 143
 144     int button_size = s_CloseIconSize + 2 * xthickness;
 145
 146     wxRect out_rect;
 147
 148     if (orientation == wxLEFT)
 149         out_rect.x = in_rect.x - ythickness;
 150     else
 151         out_rect.x = in_rect.x + in_rect.width - button_size - ythickness;
 152
 153     out_rect.y = in_rect.y + (in_rect.height - button_size) / 2;
 154     out_rect.width = button_size;
 155     out_rect.height = button_size;
 156
 157     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 158     GdkWindow* window = impldc->GetGDKWindow();
 159
 160     if (button_state == wxAUI_BUTTON_STATE_HOVER)
 161     {
 162         gtk_paint_box(style_button, window,
 163                       GTK_STATE_PRELIGHT, GTK_SHADOW_OUT, clipRect, widget, "button",
 164                      out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 165     }
 166     else if (button_state == wxAUI_BUTTON_STATE_PRESSED)
 167     {
 168         gtk_paint_box(style_button, window,
 169                       GTK_STATE_ACTIVE, GTK_SHADOW_IN, clipRect, widget, "button",
 170                       out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 171     }
 172
 173
 174     dc.DrawBitmap(bmp, out_rect.x + xthickness, out_rect.y + ythickness, true);
 175
 176     return out_rect;
 177 }
 178
 179 void wxAuiGtkTabArt::DrawTab(wxDC& dc, wxWindow* wnd, const wxAuiNotebookPage& page,
 180                              const wxRect& in_rect, int close_button_state, wxRect* out_tab_rect,
 181                              wxRect* out_button_rect, int* x_extent)
 182 {
 183     GtkWidget *widget = wnd->GetHandle();
 184     GtkStyle *style_notebook = gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget());
 185
 186     wxRect const &window_rect = wnd->GetRect();
 187
 188     int focus_width = 0;
 189
 190     gtk_widget_style_get(wxGTKPrivate::GetNotebookWidget(),
 191                          "focus-line-width", &focus_width,
 192                          NULL);
 193
 194     int tab_pos;
 195     if (m_flags &wxAUI_NB_BOTTOM)
 196         tab_pos = wxAUI_NB_BOTTOM;
 197     else //if (m_flags & wxAUI_NB_TOP) {}
 198         tab_pos = wxAUI_NB_TOP;
 199
 200     // TODO: else if (m_flags &wxAUI_NB_LEFT) {}
 201     // TODO: else if (m_flags &wxAUI_NB_RIGHT) {}
 202
 203     // figure out the size of the tab
 204     wxSize tab_size = GetTabSize(dc, wnd, page.caption, page.bitmap,
 205                                     page.active, close_button_state, x_extent);
 206
 207     wxRect tab_rect = in_rect;
 208     tab_rect.width = tab_size.x;
 209     tab_rect.height = tab_size.y;
 210     tab_rect.y += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 211
 212     if (page.active)
 213         tab_rect.height += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 214
 215     int gap_rect_height = 10 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 216     int gap_rect_x = 1, gap_start = 0, gap_width = 0;
 217     int gap_rect_y = tab_rect.y - gap_rect_height;
 218     int gap_rect_width = window_rect.width;
 219
 220     switch (tab_pos)
 221     {
 222         case wxAUI_NB_TOP:
 223             tab_rect.y -= 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 224             if (!page.active)
 225                 tab_rect.y += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 226             gap_rect_y = tab_rect.y + tab_rect.height - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 227             // fall through
 228         case wxAUI_NB_BOTTOM:
 229             gap_start = tab_rect.x - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder / 2;
 230             gap_width = tab_rect.width;
 231             break;
 232         // TODO: case wxAUI_NB_LEFT: break;
 233         // TODO: case wxAUI_NB_RIGHT: break;
 234     }
 235     tab_rect.y += GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 236     gap_rect_y += GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 237
 238     int padding = focus_width + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 239
 240     int clip_width = tab_rect.width;
 241     if (tab_rect.x + tab_rect.width > in_rect.x + in_rect.width)
 242         clip_width = (in_rect.x + in_rect.width) - tab_rect.x;
 243
 244     dc.SetClippingRegion(tab_rect.x, tab_rect.y - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder, clip_width, tab_rect.height + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder);
 245
 246     GdkRectangle area;
 247     area.x = tab_rect.x - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 248     area.y = tab_rect.y - 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 249     area.width = clip_width + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 250     area.height = tab_rect.height + 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 251
 252     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 253     GdkWindow* window = impldc->GetGDKWindow();
 254
 255     // Before drawing the active tab itself, draw a box without border, because some themes
 256     // have transparent gaps and a line would be visible at the bottom of the tab
 257     if (page.active)
 258         gtk_paint_box(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_NONE,
 259                       NULL, widget,
 260                       const_cast<char*>("notebook"),
 261                       gap_rect_x, gap_rect_y,
 262                       gap_rect_width, gap_rect_height);
 263
 264     if (tab_pos == wxAUI_NB_BOTTOM)
 265     {
 266         if (page.active)
 267         {
 268             gtk_paint_box_gap(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 269                               NULL, widget,
 270                               const_cast<char*>("notebook"),
 271                               gap_rect_x, gap_rect_y,
 272                               gap_rect_width, gap_rect_height,
 273                               GTK_POS_BOTTOM, gap_start , gap_width);
 274         }
 275         gtk_paint_extension(style_notebook, window,
 276                            page.active ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE, GTK_SHADOW_OUT,
 277                            &area, widget,
 278                            const_cast<char*>("tab"),
 279                            tab_rect.x, tab_rect.y,
 280                            tab_rect.width, tab_rect.height,
 281                            GTK_POS_TOP);
 282     }
 283     else
 284     {
 285         if (page.active)
 286         {
 287             gtk_paint_box_gap(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 288                               NULL, widget,
 289                               const_cast<char*>("notebook"),
 290                               gap_rect_x, gap_rect_y,
 291                               gap_rect_width, gap_rect_height,
 292                               GTK_POS_TOP, gap_start , gap_width);
 293         }
 294         gtk_paint_extension(style_notebook, window,
 295                            page.active ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE, GTK_SHADOW_OUT,
 296                            &area, widget,
 297                            const_cast<char*>("tab"),
 298                            tab_rect.x, tab_rect.y,
 299                            tab_rect.width, tab_rect.height,
 300                            GTK_POS_BOTTOM);
 301     }
 302
 303     // After drawing the inactive tab itself, draw a box with the same dimensions as the gap-box,
 304     // otherwise we don't get a gap-box, if the active tab is invisible
 305     if (!page.active)
 306         gtk_paint_box(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 307                       NULL, widget,
 308                       const_cast<char*>("notebook"),
 309                       gap_rect_x, gap_rect_y,
 310                       gap_rect_width, gap_rect_height);
 311
 312     wxCoord textX = tab_rect.x + padding + style_notebook->xthickness;
 313
 314     int bitmap_offset = 0;
 315     if (page.bitmap.IsOk())
 316     {
 317         bitmap_offset = textX;
 318
 319         // draw bitmap
 320         int bitmapY = tab_rect.y +(tab_rect.height - page.bitmap.GetHeight()) / 2;
 321         if(!page.active)
 322         {
 323             if (tab_pos == wxAUI_NB_TOP)
 324                 bitmapY += style_notebook->ythickness / 2;
 325             else
 326                 bitmapY -= style_notebook->ythickness / 2;
 327         }
 328         dc.DrawBitmap(page.bitmap,
 329                       bitmap_offset,
 330                       bitmapY,
 331                       true);
 332
 333         textX += page.bitmap.GetWidth() + padding;
 334     }
 335
 336     wxCoord textW, textH, textY;
 337
 338     dc.SetFont(m_normalFont);
 339     dc.GetTextExtent(page.caption, &textW, &textH);
 340     textY = tab_rect.y + (tab_rect.height - textH) / 2;
 341     if(!page.active)
 342     {
 343         if (tab_pos == wxAUI_NB_TOP)
 344             textY += style_notebook->ythickness / 2;
 345         else
 346             textY -= style_notebook->ythickness / 2;
 347     }
 348
 349     // draw tab text
 350     GdkColor text_colour = page.active ? style_notebook->fg[GTK_STATE_NORMAL] : style_notebook->fg[GTK_STATE_ACTIVE];
 351     dc.SetTextForeground(wxColor(text_colour));
 352     GdkRectangle focus_area;
 353
 354     int padding_focus = padding - focus_width;
 355     focus_area.x = tab_rect.x + padding_focus;
 356     focus_area.y = textY - focus_width;
 357     focus_area.width = tab_rect.width - 2 * padding_focus;
 358     focus_area.height = textH + 2 * focus_width;
 359
 360     if(page.active && (wnd->FindFocus() == wnd) && focus_area.x <= (area.x + area.width))
 361     {
 362         // clipping seems not to work here, so we we have to recalc the focus-area manually
 363         if((focus_area.x + focus_area.width) > (area.x + area.width))
 364             focus_area.width = area.x + area.width - focus_area.x + focus_width - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 365         gtk_paint_focus (style_notebook, window,
 366                          GTK_STATE_ACTIVE, NULL, widget, "tab",
 367                          focus_area.x, focus_area.y, focus_area.width, focus_area.height);
 368     }
 369
 370     dc.DrawText(page.caption, textX, textY);
 371
 372     // draw close-button on tab (if enabled)
 373     if (close_button_state != wxAUI_BUTTON_STATE_HIDDEN)
 374     {
 375         wxRect rect(tab_rect.x, tab_rect.y, tab_rect.width - style_notebook->xthickness, tab_rect.height);
 376         if(!page.active)
 377         {
 378             if (tab_pos == wxAUI_NB_TOP)
 379                 rect.y += style_notebook->ythickness / 2;
 380             else
 381                 rect.y -= style_notebook->ythickness / 2;
 382         }
 383         *out_button_rect = DrawCloseButton(dc, widget, close_button_state, rect, wxRIGHT, &area);
 384     }
 385
 386     tab_rect.width = std::min(tab_rect.width, clip_width);
 387     *out_tab_rect = tab_rect;
 388
 389     dc.DestroyClippingRegion();
 390 }
 391
 392 wxRect DrawSimpleArrow(wxDC& dc,
 393                        GtkWidget *widget,
 394                        int button_state,
 395                        wxRect const &in_rect,
 396                        int orientation,
 397                        GtkArrowType arrow_type)
 398 {
 399     int scroll_arrow_hlength, scroll_arrow_vlength;
 400     gtk_widget_style_get(widget,
 401                          "scroll-arrow-hlength", &scroll_arrow_hlength,
 402                          "scroll-arrow-vlength", &scroll_arrow_vlength,
 403                          NULL);
 404
 405     GtkStateType state;
 406     GtkShadowType shadow;
 407     ButtonStateAndShadow(button_state, state, shadow);
 408
 409     wxRect out_rect;
 410
 411     if (orientation == wxLEFT)
 412         out_rect.x = in_rect.x;
 413     else
 414         out_rect.x = in_rect.x + in_rect.width - scroll_arrow_hlength;
 415     out_rect.y = (in_rect.y + in_rect.height - 3 * gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget())->ythickness - scroll_arrow_vlength) / 2;
 416     out_rect.width = scroll_arrow_hlength;
 417     out_rect.height = scroll_arrow_vlength;
 418
 419     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 420     GdkWindow* window = impldc->GetGDKWindow();
 421     gtk_paint_arrow (gtk_widget_get_style(wxGTKPrivate::GetButtonWidget()), window, state, shadow, NULL, widget, "notebook",
 422                      arrow_type, TRUE, out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 423
 424     return out_rect;
 425 }
 426
 427 void wxAuiGtkTabArt::DrawButton(wxDC& dc, wxWindow* wnd,
 428                             const wxRect& in_rect,
 429                             int bitmap_id,
 430                             int button_state,
 431                             int orientation,
 432                             wxRect* out_rect)
 433 {
 434     GtkWidget *widget = wnd->GetHandle();
 435     wxRect rect = in_rect;
 436     if (m_flags &wxAUI_NB_BOTTOM)
 437         rect.y += 2 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 438
 439     switch (bitmap_id)
 440     {
 441         case wxAUI_BUTTON_CLOSE:
 442             rect.y -= 2 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 443             rect = DrawCloseButton(dc, widget, button_state, rect, orientation, NULL);
 444             break;
 445
 446         case wxAUI_BUTTON_LEFT:
 447             rect = DrawSimpleArrow(dc, widget, button_state, rect, orientation, GTK_ARROW_LEFT);
 448             break;
 449
 450         case wxAUI_BUTTON_RIGHT:
 451             rect = DrawSimpleArrow(dc, widget, button_state, rect, orientation, GTK_ARROW_RIGHT);
 452             break;
 453
 454         case wxAUI_BUTTON_WINDOWLIST:
 455             {
 456                 rect.height -= 4 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 457                 rect.width = rect.height;
 458                 rect.x = in_rect.x + in_rect.width - rect.width;
 459
 460                 if (button_state == wxAUI_BUTTON_STATE_HOVER)
 461                     wxRendererNative::Get().DrawComboBoxDropButton(wnd, dc, rect, wxCONTROL_CURRENT);
 462                 else if (button_state == wxAUI_BUTTON_STATE_PRESSED)
 463                     wxRendererNative::Get().DrawComboBoxDropButton(wnd, dc, rect, wxCONTROL_PRESSED);
 464                 else
 465                     wxRendererNative::Get().DrawDropArrow(wnd, dc, rect);
 466             }
 467             break;
 468     }
 469
 470     *out_rect = rect;
 471 }
 472
 473
 474 int wxAuiGtkTabArt::GetBestTabCtrlSize(wxWindow* wnd,
 475                                    const wxAuiNotebookPageArray& pages,
 476                                    const wxSize& required_bmp_size)
 477 {
 478     SetMeasuringFont(m_normalFont);
 479     SetSelectedFont(m_normalFont);
 480     int tab_height = 3 * gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget())->ythickness + wxAuiGenericTabArt::GetBestTabCtrlSize(wnd, pages, required_bmp_size);
 481     return tab_height;
 482 }
 483
 484 int wxAuiGtkTabArt::GetBorderWidth(wxWindow* wnd)
 485 {
 486     return wxAuiGenericTabArt::GetBorderWidth(wnd) + wxMax(GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder,
 487                                                            GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder);
 488 }
 489
 490 wxSize wxAuiGtkTabArt::GetTabSize(wxDC& dc,
 491                               wxWindow* wnd,
 492                               const wxString& caption,
 493                               const wxBitmap& bitmap,
 494                               bool active,
 495                               int close_button_state,
 496                               int* x_extent)
 497 {
 498     wxSize s = wxAuiGenericTabArt::GetTabSize(dc, wnd, caption, bitmap, active, close_button_state, x_extent);
 499
 500     int overlap = 0;
 501     gtk_widget_style_get (wnd->GetHandle(),
 502         "focus-line-width", &overlap,
 503         NULL);
 504     *x_extent -= overlap;
 505     return s;
 506 }
 507 #endif  // wxUSE_AUI