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 ButtonStateAndShadow(int button_state, GtkStateType &state, GtkShadowType &shadow)
  83 {
  84
  85     if (button_state & wxAUI_BUTTON_STATE_DISABLED)
  86     {
  87         state = GTK_STATE_INSENSITIVE;
  88         shadow = GTK_SHADOW_ETCHED_IN;
  89     }
  90     else if (button_state & wxAUI_BUTTON_STATE_HOVER)
  91     {
  92         state = GTK_STATE_PRELIGHT;
  93         shadow = GTK_SHADOW_OUT;
  94     }
  95     else if (button_state & wxAUI_BUTTON_STATE_PRESSED)
  96     {
  97         state = GTK_STATE_ACTIVE;
  98         shadow = GTK_SHADOW_IN;
  99     }
 100     else
 101     {
 102         state = GTK_STATE_NORMAL;
 103         shadow = GTK_SHADOW_OUT;
 104     }
 105 }
 106
 107 wxRect DrawCloseButton(wxDC& dc,
 108                        GtkWidget *widget,
 109                        int button_state,
 110                        wxRect const &in_rect,
 111                        int orientation,
 112                        GdkRectangle* clipRect)
 113 {
 114     GtkStyle *style_button = gtk_widget_get_style(wxGTKPrivate::GetButtonWidget());
 115     int xthickness = style_button->xthickness;
 116     int ythickness = style_button->ythickness;
 117
 118     wxBitmap bmp(gtk_widget_render_icon(widget, GTK_STOCK_CLOSE, GTK_ICON_SIZE_SMALL_TOOLBAR, "tab"));
 119
 120     if(bmp.GetWidth() != s_CloseIconSize || bmp.GetHeight() != s_CloseIconSize)
 121     {
 122         wxImage img = bmp.ConvertToImage();
 123         img.Rescale(s_CloseIconSize, s_CloseIconSize);
 124         bmp = img;
 125     }
 126
 127     int button_size = s_CloseIconSize + 2 * xthickness;
 128
 129     wxRect out_rect;
 130
 131     if (orientation == wxLEFT)
 132         out_rect.x = in_rect.x - ythickness;
 133     else
 134         out_rect.x = in_rect.x + in_rect.width - button_size - ythickness;
 135
 136     out_rect.y = in_rect.y + (in_rect.height - button_size) / 2;
 137     out_rect.width = button_size;
 138     out_rect.height = button_size;
 139
 140     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 141     GdkWindow* window = impldc->GetGDKWindow();
 142
 143     if (button_state == wxAUI_BUTTON_STATE_HOVER)
 144     {
 145         gtk_paint_box(style_button, window,
 146                       GTK_STATE_PRELIGHT, GTK_SHADOW_OUT, clipRect, widget, "button",
 147                      out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 148     }
 149     else if (button_state == wxAUI_BUTTON_STATE_PRESSED)
 150     {
 151         gtk_paint_box(style_button, window,
 152                       GTK_STATE_ACTIVE, GTK_SHADOW_IN, clipRect, widget, "button",
 153                       out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 154     }
 155
 156
 157     dc.DrawBitmap(bmp, out_rect.x + xthickness, out_rect.y + ythickness, true);
 158
 159     return out_rect;
 160 }
 161
 162 void wxAuiGtkTabArt::DrawTab(wxDC& dc, wxWindow* wnd, const wxAuiNotebookPage& page,
 163                              const wxRect& in_rect, int close_button_state, wxRect* out_tab_rect,
 164                              wxRect* out_button_rect, int* x_extent)
 165 {
 166     GtkWidget *widget = wnd->GetHandle();
 167     GtkStyle *style_notebook = gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget());
 168
 169     wxRect const &window_rect = wnd->GetRect();
 170
 171     int focus_width = 0;
 172
 173     gtk_widget_style_get(wxGTKPrivate::GetNotebookWidget(),
 174                          "focus-line-width", &focus_width,
 175                          NULL);
 176
 177     int tab_pos;
 178     if (m_flags &wxAUI_NB_BOTTOM)
 179         tab_pos = wxAUI_NB_BOTTOM;
 180     else //if (m_flags & wxAUI_NB_TOP) {}
 181         tab_pos = wxAUI_NB_TOP;
 182
 183     // TODO: else if (m_flags &wxAUI_NB_LEFT) {}
 184     // TODO: else if (m_flags &wxAUI_NB_RIGHT) {}
 185
 186     // figure out the size of the tab
 187     wxSize tab_size = GetTabSize(dc, wnd, page.caption, page.bitmap,
 188                                     page.active, close_button_state, x_extent);
 189
 190     wxRect tab_rect = in_rect;
 191     tab_rect.width = tab_size.x;
 192     tab_rect.height = tab_size.y;
 193     tab_rect.y += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 194
 195     if (page.active)
 196         tab_rect.height += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 197     // if no bitmap is set, we need a tiny correction
 198     if (! page.bitmap.IsOk())
 199         tab_rect.height += 1;
 200
 201     int gap_rect_height = 6 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 202     int gap_rect_x = 1, gap_start = 0, gap_width = 0;
 203     int gap_rect_y = tab_rect.y - gap_rect_height;
 204     int gap_rect_width = window_rect.width;
 205
 206     switch (tab_pos)
 207     {
 208         case wxAUI_NB_TOP:
 209             tab_rect.y -= 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 210             if (!page.active)
 211                 tab_rect.y += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 212             gap_rect_y = tab_rect.y + tab_rect.height - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 213             // fall through
 214         case wxAUI_NB_BOTTOM:
 215             gap_start = tab_rect.x - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder / 2;
 216             gap_width = tab_rect.width;
 217             break;
 218         // TODO: case wxAUI_NB_LEFT: break;
 219         // TODO: case wxAUI_NB_RIGHT: break;
 220     }
 221     tab_rect.y += GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 222     gap_rect_y += GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 223
 224     int padding = focus_width + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 225
 226     int clip_width = tab_rect.width;
 227     if (tab_rect.x + tab_rect.width > in_rect.x + in_rect.width)
 228         clip_width = (in_rect.x + in_rect.width) - tab_rect.x;
 229
 230     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);
 231
 232     GdkRectangle area;
 233     area.x = tab_rect.x - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 234     area.y = tab_rect.y - 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 235     area.width = clip_width + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 236     area.height = tab_rect.height + 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 237
 238     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 239     GdkWindow* window = impldc->GetGDKWindow();
 240
 241     if (tab_pos == wxAUI_NB_BOTTOM)
 242     {
 243         if (page.active)
 244         {
 245             gtk_paint_box_gap(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 246                               NULL, widget,
 247                               const_cast<char*>("notebook"),
 248                               gap_rect_x, gap_rect_y,
 249                               gap_rect_width, gap_rect_height,
 250                               GTK_POS_BOTTOM, gap_start , gap_width);
 251         }
 252         gtk_paint_extension(style_notebook, window,
 253                            page.active ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE, GTK_SHADOW_OUT,
 254                            &area, widget,
 255                            const_cast<char*>("tab"),
 256                            tab_rect.x, tab_rect.y,
 257                            tab_rect.width, tab_rect.height,
 258                            GTK_POS_TOP);
 259     }
 260     else
 261     {
 262         if (page.active)
 263         {
 264             gtk_paint_box_gap(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 265                               NULL, widget,
 266                               const_cast<char*>("notebook"),
 267                               gap_rect_x, gap_rect_y,
 268                               gap_rect_width, gap_rect_height,
 269                               GTK_POS_TOP, gap_start , gap_width);
 270         }
 271         gtk_paint_extension(style_notebook, window,
 272                            page.active ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE, GTK_SHADOW_OUT,
 273                            &area, widget,
 274                            const_cast<char*>("tab"),
 275                            tab_rect.x, tab_rect.y,
 276                            tab_rect.width, tab_rect.height,
 277                            GTK_POS_BOTTOM);
 278     }
 279
 280     wxCoord textX = tab_rect.x + padding + style_notebook->xthickness;
 281
 282     int bitmap_offset = 0;
 283     if (page.bitmap.IsOk())
 284     {
 285         bitmap_offset = textX;
 286
 287         // draw bitmap
 288         int bitmapY = tab_rect.y +(tab_rect.height - page.bitmap.GetHeight()) / 2;
 289         if(!page.active)
 290         {
 291             if (tab_pos == wxAUI_NB_TOP)
 292                 bitmapY += style_notebook->ythickness / 2;
 293             else
 294                 bitmapY -= style_notebook->ythickness / 2;
 295         }
 296         dc.DrawBitmap(page.bitmap,
 297                       bitmap_offset,
 298                       bitmapY,
 299                       true);
 300
 301         textX += page.bitmap.GetWidth() + padding;
 302     }
 303
 304     wxCoord textW, textH, textY;
 305
 306     dc.SetFont(m_normalFont);
 307     dc.GetTextExtent(page.caption, &textW, &textH);
 308     textY = tab_rect.y + (tab_rect.height - textH) / 2;
 309     if(!page.active)
 310     {
 311         if (tab_pos == wxAUI_NB_TOP)
 312             textY += style_notebook->ythickness / 2;
 313         else
 314             textY -= style_notebook->ythickness / 2;
 315     }
 316
 317     // draw tab text
 318     GdkColor text_colour = page.active ? style_notebook->fg[GTK_STATE_NORMAL] : style_notebook->fg[GTK_STATE_ACTIVE];
 319     dc.SetTextForeground(wxColor(text_colour));
 320     GdkRectangle focus_area;
 321
 322     int padding_focus = padding - focus_width;
 323     focus_area.x = tab_rect.x + padding_focus;
 324     focus_area.y = textY - focus_width;
 325     focus_area.width = tab_rect.width - 2 * padding_focus;
 326     focus_area.height = textH + 2 * focus_width;
 327
 328     if(page.active && (wnd->FindFocus() == wnd) && focus_area.x <= (area.x + area.width))
 329     {
 330         // clipping seems not to work here, so we we have to recalc the focus-area manually
 331         if((focus_area.x + focus_area.width) > (area.x + area.width))
 332             focus_area.width = area.x + area.width - focus_area.x + focus_width - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 333         gtk_paint_focus (style_notebook, window,
 334                          GTK_STATE_ACTIVE, NULL, widget, "tab",
 335                          focus_area.x, focus_area.y, focus_area.width, focus_area.height);
 336     }
 337
 338     dc.DrawText(page.caption, textX, textY);
 339
 340     // draw close-button on tab (if enabled)
 341     if (close_button_state != wxAUI_BUTTON_STATE_HIDDEN)
 342     {
 343         wxRect rect(tab_rect.x, tab_rect.y, tab_rect.width - style_notebook->xthickness, tab_rect.height);
 344         if(!page.active)
 345         {
 346             if (tab_pos == wxAUI_NB_TOP)
 347                 rect.y += style_notebook->ythickness / 2;
 348             else
 349                 rect.y -= style_notebook->ythickness / 2;
 350         }
 351         *out_button_rect = DrawCloseButton(dc, widget, close_button_state, rect, wxRIGHT, &area);
 352     }
 353
 354     tab_rect.width = std::min(tab_rect.width, clip_width);
 355     *out_tab_rect = tab_rect;
 356
 357     dc.DestroyClippingRegion();
 358 }
 359
 360 wxRect DrawSimpleArrow(wxDC& dc,
 361                        GtkWidget *widget,
 362                        int button_state,
 363                        wxRect const &in_rect,
 364                        int orientation,
 365                        GtkArrowType arrow_type)
 366 {
 367     int scroll_arrow_hlength, scroll_arrow_vlength;
 368     gtk_widget_style_get(widget,
 369                          "scroll-arrow-hlength", &scroll_arrow_hlength,
 370                          "scroll-arrow-vlength", &scroll_arrow_vlength,
 371                          NULL);
 372
 373     GtkStateType state;
 374     GtkShadowType shadow;
 375     ButtonStateAndShadow(button_state, state, shadow);
 376
 377     wxRect out_rect;
 378
 379     if (orientation == wxLEFT)
 380         out_rect.x = in_rect.x;
 381     else
 382         out_rect.x = in_rect.x + in_rect.width - scroll_arrow_hlength;
 383     out_rect.y = (in_rect.y + in_rect.height - 3 * gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget())->ythickness - scroll_arrow_vlength) / 2;
 384     out_rect.width = scroll_arrow_hlength;
 385     out_rect.height = scroll_arrow_vlength;
 386
 387     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 388     GdkWindow* window = impldc->GetGDKWindow();
 389     gtk_paint_arrow (gtk_widget_get_style(wxGTKPrivate::GetButtonWidget()), window, state, shadow, NULL, widget, "notebook",
 390                      arrow_type, TRUE, out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 391
 392     return out_rect;
 393 }
 394
 395 void wxAuiGtkTabArt::DrawButton(wxDC& dc, wxWindow* wnd,
 396                             const wxRect& in_rect,
 397                             int bitmap_id,
 398                             int button_state,
 399                             int orientation,
 400                             wxRect* out_rect)
 401 {
 402     GtkWidget *widget = wnd->GetHandle();
 403     wxRect rect = in_rect;
 404     if (m_flags &wxAUI_NB_BOTTOM)
 405         rect.y += 2 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 406
 407     switch (bitmap_id)
 408     {
 409         case wxAUI_BUTTON_CLOSE:
 410             rect.y -= 2 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 411             rect = DrawCloseButton(dc, widget, button_state, rect, orientation, NULL);
 412             break;
 413
 414         case wxAUI_BUTTON_LEFT:
 415             rect = DrawSimpleArrow(dc, widget, button_state, rect, orientation, GTK_ARROW_LEFT);
 416             break;
 417
 418         case wxAUI_BUTTON_RIGHT:
 419             rect = DrawSimpleArrow(dc, widget, button_state, rect, orientation, GTK_ARROW_RIGHT);
 420             break;
 421
 422         case wxAUI_BUTTON_WINDOWLIST:
 423             {
 424                 rect.height -= 4 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 425                 rect.width = rect.height;
 426                 rect.x = in_rect.x + in_rect.width - rect.width;
 427
 428                 if (button_state == wxAUI_BUTTON_STATE_HOVER)
 429                     wxRendererNative::Get().DrawComboBoxDropButton(wnd, dc, rect, wxCONTROL_CURRENT);
 430                 else if (button_state == wxAUI_BUTTON_STATE_PRESSED)
 431                     wxRendererNative::Get().DrawComboBoxDropButton(wnd, dc, rect, wxCONTROL_PRESSED);
 432                 else
 433                     wxRendererNative::Get().DrawDropArrow(wnd, dc, rect);
 434             }
 435             break;
 436     }
 437
 438     *out_rect = rect;
 439 }
 440
 441
 442 int wxAuiGtkTabArt::GetBestTabCtrlSize(wxWindow* wnd,
 443                                    const wxAuiNotebookPageArray& pages,
 444                                    const wxSize& required_bmp_size)
 445 {
 446     SetMeasuringFont(m_normalFont);
 447     SetSelectedFont(m_normalFont);
 448     int tab_height = 3 * gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget())->ythickness + wxAuiGenericTabArt::GetBestTabCtrlSize(wnd, pages, required_bmp_size);
 449     return tab_height;
 450 }
 451
 452 wxSize wxAuiGtkTabArt::GetTabSize(wxDC& dc,
 453                               wxWindow* wnd,
 454                               const wxString& caption,
 455                               const wxBitmap& bitmap,
 456                               bool active,
 457                               int close_button_state,
 458                               int* x_extent)
 459 {
 460     wxSize s = wxAuiGenericTabArt::GetTabSize(dc, wnd, caption, bitmap, active, close_button_state, x_extent);
 461
 462     int overlap = 0;
 463     gtk_widget_style_get (wnd->GetHandle(),
 464         "focus-line-width", &overlap,
 465         NULL);
 466     *x_extent -= overlap;
 467     return s;
 468 }
 469 #endif  // wxUSE_AUI