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 //    m_Xthickness(0),
  55 //    m_Ythickness(0),
  56 //    m_TabHBorder(0),
  57 //    m_TabVBorder(0)
  58
  59 {
  60 }
  61
  62 wxAuiTabArt* wxAuiGtkTabArt::Clone()
  63 {
  64     wxAuiGtkTabArt* clone = new wxAuiGtkTabArt();
  65
  66     clone->SetNormalFont(m_normalFont);
  67     clone->SetSelectedFont(m_normalFont);
  68     clone->SetMeasuringFont(m_normalFont);
  69
  70     return clone;
  71 }
  72
  73 void wxAuiGtkTabArt::DrawBackground(wxDC& dc, wxWindow* WXUNUSED(wnd), const wxRect& rect)
  74 {
  75     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
  76     GdkWindow* window = impldc->GetGDKWindow();
  77
  78     gtk_style_apply_default_background(gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget()),
  79                                        window,
  80                                        true,
  81                                        GTK_STATE_NORMAL,
  82                                        NULL,
  83                                        rect.x, rect.y, rect.width, rect.height);
  84 }
  85
  86 void ButtonStateAndShadow(int button_state, GtkStateType &state, GtkShadowType &shadow)
  87 {
  88
  89     if (button_state & wxAUI_BUTTON_STATE_DISABLED)
  90     {
  91         state = GTK_STATE_INSENSITIVE;
  92         shadow = GTK_SHADOW_ETCHED_IN;
  93     }
  94     else if (button_state & wxAUI_BUTTON_STATE_HOVER)
  95     {
  96         state = GTK_STATE_PRELIGHT;
  97         shadow = GTK_SHADOW_OUT;
  98     }
  99     else if (button_state & wxAUI_BUTTON_STATE_PRESSED)
 100     {
 101         state = GTK_STATE_ACTIVE;
 102         shadow = GTK_SHADOW_IN;
 103     }
 104     else
 105     {
 106         state = GTK_STATE_NORMAL;
 107         shadow = GTK_SHADOW_OUT;
 108     }
 109 }
 110
 111 wxRect DrawCloseButton(wxDC& dc,
 112                        GtkWidget *widget,
 113                        int button_state,
 114                        wxRect const &in_rect,
 115                        int orientation,
 116                        GdkRectangle* clipRect)
 117 {
 118     GtkStyle *style_button = gtk_widget_get_style(wxGTKPrivate::GetButtonWidget());
 119     int xthickness = style_button->xthickness;
 120     int ythickness = style_button->ythickness;
 121
 122     wxBitmap bmp;
 123     bmp.SetPixbuf(gtk_widget_render_icon(widget, GTK_STOCK_CLOSE, GTK_ICON_SIZE_SMALL_TOOLBAR, "tab"));
 124
 125     if(bmp.GetWidth() != s_CloseIconSize || bmp.GetHeight() != s_CloseIconSize)
 126     {
 127         wxImage img = bmp.ConvertToImage();
 128         img.Rescale(s_CloseIconSize, s_CloseIconSize);
 129         bmp = img;
 130     }
 131
 132     int button_size = s_CloseIconSize + 2 * xthickness;
 133
 134     wxRect out_rect;
 135
 136     if (orientation == wxLEFT)
 137         out_rect.x = in_rect.x - ythickness;
 138     else
 139         out_rect.x = in_rect.x + in_rect.width - button_size - ythickness;
 140
 141     out_rect.y = in_rect.y + (in_rect.height - button_size) / 2;
 142     out_rect.width = button_size;
 143     out_rect.height = button_size;
 144
 145     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 146     GdkWindow* window = impldc->GetGDKWindow();
 147
 148     if (button_state == wxAUI_BUTTON_STATE_HOVER)
 149     {
 150         gtk_paint_box(style_button, window,
 151                       GTK_STATE_PRELIGHT, GTK_SHADOW_OUT, clipRect, widget, "button",
 152                      out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 153     }
 154     else if (button_state == wxAUI_BUTTON_STATE_PRESSED)
 155     {
 156         gtk_paint_box(style_button, window,
 157                       GTK_STATE_ACTIVE, GTK_SHADOW_IN, clipRect, widget, "button",
 158                       out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 159     }
 160
 161
 162     dc.DrawBitmap(bmp, out_rect.x + xthickness, out_rect.y + ythickness, true);
 163
 164     return out_rect;
 165 }
 166
 167 void wxAuiGtkTabArt::DrawTab(wxDC& dc, wxWindow* wnd, const wxAuiNotebookPage& page,
 168                              const wxRect& in_rect, int close_button_state, wxRect* out_tab_rect,
 169                              wxRect* out_button_rect, int* x_extent)
 170 {
 171     GtkWidget *widget = wnd->GetHandle();
 172     GtkStyle *style_notebook = gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget());
 173
 174     wxRect const &window_rect = wnd->GetRect();
 175
 176     int focus_width = 0;
 177
 178     gtk_widget_style_get(wxGTKPrivate::GetNotebookWidget(),
 179                          "focus-line-width", &focus_width,
 180                          NULL);
 181
 182     int gap_x = 0, gap_width = 0;
 183     int tab_pos;
 184     if (m_flags &wxAUI_NB_BOTTOM)
 185         tab_pos = wxAUI_NB_BOTTOM;
 186     else //if (m_flags & wxAUI_NB_TOP) {}
 187         tab_pos = wxAUI_NB_TOP;
 188
 189     // TODO: else if (m_flags &wxAUI_NB_LEFT) {}
 190     // TODO: else if (m_flags &wxAUI_NB_RIGHT) {}
 191
 192     // figure out the size of the tab
 193     wxSize tab_size = GetTabSize(dc, wnd, page.caption, page.bitmap,
 194                                     page.active, close_button_state, x_extent);
 195
 196     wxRect tab_rect = in_rect;
 197     tab_rect.width = tab_size.x;
 198     tab_rect.height = tab_size.y;
 199     tab_rect.y += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 200
 201     if (page.active)
 202         tab_rect.height += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 203     // if no bitmap is set, we need a tiny correction
 204     if (! page.bitmap.IsOk())
 205         tab_rect.height += 1;
 206
 207     int gap_height = 6 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 208     int gap_y = tab_rect.y - gap_height;
 209
 210     switch (tab_pos)
 211     {
 212         case wxAUI_NB_TOP:
 213             tab_rect.y -= 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 214             if (!page.active)
 215                 tab_rect.y += 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 216             gap_y = tab_rect.y + tab_rect.height;
 217             // fall through
 218         case wxAUI_NB_BOTTOM:
 219             gap_x = tab_rect.x - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder / 2;
 220             gap_width = tab_rect.width;
 221             break;
 222     }
 223     tab_rect.y += GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 224     gap_y += GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder / 2;
 225
 226     int padding = focus_width + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 227
 228     int clip_width = tab_rect.width;
 229     if (tab_rect.x + tab_rect.width > in_rect.x + in_rect.width)
 230         clip_width = (in_rect.x + in_rect.width) - tab_rect.x;
 231
 232     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);
 233
 234     GdkRectangle area;
 235     area.x = tab_rect.x - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 236     area.y = tab_rect.y - 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 237     area.width = clip_width + GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 238     area.height = tab_rect.height + 2 * GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_hborder;
 239
 240     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 241     GdkWindow* window = impldc->GetGDKWindow();
 242
 243     if (tab_pos == wxAUI_NB_BOTTOM)
 244     {
 245         if (page.active)
 246         {
 247             gtk_paint_box_gap(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 248                               NULL, widget,
 249                               const_cast<char*>("notebook"),
 250                               window_rect.x, gap_y,
 251                               window_rect.width, gap_height,
 252                               GTK_POS_BOTTOM, gap_x , gap_width);
 253         }
 254         gtk_paint_extension(style_notebook, window,
 255                            page.active ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE, GTK_SHADOW_OUT,
 256                            &area, widget,
 257                            const_cast<char*>("tab"),
 258                            tab_rect.x, tab_rect.y,
 259                            tab_rect.width, tab_rect.height,
 260                            GTK_POS_TOP);
 261     }
 262     else
 263     {
 264         if (page.active)
 265         {
 266             gtk_paint_box_gap(style_notebook, window, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
 267                               NULL, widget,
 268                               const_cast<char*>("notebook"),
 269                               window_rect.x, gap_y,
 270                               window_rect.width, gap_height,
 271                               GTK_POS_TOP, gap_x , gap_width);
 272         }
 273         gtk_paint_extension(style_notebook, window,
 274                            page.active ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE, GTK_SHADOW_OUT,
 275                            &area, widget,
 276                            const_cast<char*>("tab"),
 277                            tab_rect.x, tab_rect.y,
 278                            tab_rect.width, tab_rect.height,
 279                            GTK_POS_BOTTOM);
 280     }
 281
 282     wxCoord textX = tab_rect.x + padding + style_notebook->xthickness;
 283
 284     int bitmap_offset = 0;
 285     if (page.bitmap.IsOk())
 286     {
 287         bitmap_offset = textX;
 288
 289         // draw bitmap
 290         int bitmapY = tab_rect.y +(tab_rect.height - page.bitmap.GetHeight()) / 2;
 291         if(!page.active)
 292         {
 293             if (tab_pos == wxAUI_NB_TOP)
 294                 bitmapY += style_notebook->ythickness / 2;
 295             else
 296                 bitmapY -= style_notebook->ythickness / 2;
 297         }
 298         dc.DrawBitmap(page.bitmap,
 299                       bitmap_offset,
 300                       bitmapY,
 301                       true);
 302
 303         textX += page.bitmap.GetWidth() + padding;
 304     }
 305
 306     wxCoord textW, textH, textY;
 307
 308     dc.SetFont(m_normalFont);
 309     dc.GetTextExtent(page.caption, &textW, &textH);
 310     textY = tab_rect.y + (tab_rect.height - textH) / 2;
 311     if(!page.active)
 312     {
 313         if (tab_pos == wxAUI_NB_TOP)
 314             textY += style_notebook->ythickness / 2;
 315         else
 316             textY -= style_notebook->ythickness / 2;
 317     }
 318
 319     // draw tab text
 320     GdkColor text_colour = page.active ? style_notebook->fg[GTK_STATE_NORMAL] : style_notebook->fg[GTK_STATE_ACTIVE];
 321     dc.SetTextForeground(wxColor(text_colour));
 322     GdkRectangle focus_area;
 323
 324     int padding_focus = padding - focus_width;
 325     focus_area.x = tab_rect.x + padding_focus;
 326     focus_area.y = textY - focus_width;
 327     focus_area.width = tab_rect.width - 2 * padding_focus;
 328     focus_area.height = textH + 2 * focus_width;
 329
 330     if(page.active && (wnd->FindFocus() == wnd) && focus_area.x <= (area.x + area.width))
 331     {
 332         // clipping seems not to work here, so we we have to recalc the focus-area manually
 333         if((focus_area.x + focus_area.width) > (area.x + area.width))
 334             focus_area.width = area.x + area.width - focus_area.x + focus_width - GTK_NOTEBOOK (wxGTKPrivate::GetNotebookWidget())->tab_vborder;
 335         gtk_paint_focus (style_notebook, window,
 336                          GTK_STATE_ACTIVE, NULL, widget, "tab",
 337                          focus_area.x, focus_area.y, focus_area.width, focus_area.height);
 338     }
 339
 340     dc.DrawText(page.caption, textX, textY);
 341
 342     // draw close-button on tab (if enabled)
 343     if (close_button_state != wxAUI_BUTTON_STATE_HIDDEN)
 344     {
 345         wxRect rect(tab_rect.x, tab_rect.y, tab_rect.width - style_notebook->xthickness, tab_rect.height);
 346         if(!page.active)
 347         {
 348             if (tab_pos == wxAUI_NB_TOP)
 349                 rect.y += style_notebook->ythickness / 2;
 350             else
 351                 rect.y -= style_notebook->ythickness / 2;
 352         }
 353         *out_button_rect = DrawCloseButton(dc, widget, close_button_state, rect, wxRIGHT, &area);
 354     }
 355
 356     tab_rect.width = std::min(tab_rect.width, clip_width);
 357     *out_tab_rect = tab_rect;
 358
 359     dc.DestroyClippingRegion();
 360 }
 361
 362 wxRect DrawSimpleArrow(wxDC& dc,
 363                        GtkWidget *widget,
 364                        int button_state,
 365                        wxRect const &in_rect,
 366                        int orientation,
 367                        GtkArrowType arrow_type)
 368 {
 369     int scroll_arrow_hlength, scroll_arrow_vlength;
 370     gtk_widget_style_get(widget,
 371                          "scroll-arrow-hlength", &scroll_arrow_hlength,
 372                          "scroll-arrow-vlength", &scroll_arrow_vlength,
 373                          NULL);
 374
 375     GtkStateType state;
 376     GtkShadowType shadow;
 377     ButtonStateAndShadow(button_state, state, shadow);
 378
 379     wxRect out_rect;
 380
 381     if (orientation == wxLEFT)
 382         out_rect.x = in_rect.x;
 383     else
 384         out_rect.x = in_rect.x + in_rect.width - scroll_arrow_hlength;
 385     out_rect.y = (in_rect.y + in_rect.height - 3 * gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget())->ythickness - scroll_arrow_vlength) / 2;
 386     out_rect.width = scroll_arrow_hlength;
 387     out_rect.height = scroll_arrow_vlength;
 388
 389     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
 390     GdkWindow* window = impldc->GetGDKWindow();
 391     gtk_paint_arrow (gtk_widget_get_style(wxGTKPrivate::GetButtonWidget()), window, state, shadow, NULL, widget, "notebook",
 392                      arrow_type, TRUE, out_rect.x, out_rect.y, out_rect.width, out_rect.height);
 393
 394     return out_rect;
 395 }
 396
 397 void wxAuiGtkTabArt::DrawButton(wxDC& dc, wxWindow* wnd,
 398                             const wxRect& in_rect,
 399                             int bitmap_id,
 400                             int button_state,
 401                             int orientation,
 402                             wxRect* out_rect)
 403 {
 404     GtkWidget *widget = wnd->GetHandle();
 405     wxRect rect = in_rect;
 406     if (m_flags &wxAUI_NB_BOTTOM)
 407         rect.y += 2 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 408
 409     switch (bitmap_id)
 410     {
 411         case wxAUI_BUTTON_CLOSE:
 412             rect.y -= 2 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 413             rect = DrawCloseButton(dc, widget, button_state, rect, orientation, NULL);
 414             break;
 415
 416         case wxAUI_BUTTON_LEFT:
 417             rect = DrawSimpleArrow(dc, widget, button_state, rect, orientation, GTK_ARROW_LEFT);
 418             break;
 419
 420         case wxAUI_BUTTON_RIGHT:
 421             rect = DrawSimpleArrow(dc, widget, button_state, rect, orientation, GTK_ARROW_RIGHT);
 422             break;
 423
 424         case wxAUI_BUTTON_WINDOWLIST:
 425             {
 426                 rect.height -= 4 * gtk_widget_get_style(wxGTKPrivate::GetButtonWidget())->ythickness;
 427                 rect.width = rect.height;
 428                 rect.x = in_rect.x + in_rect.width - rect.width;
 429
 430                 if (button_state == wxAUI_BUTTON_STATE_HOVER)
 431                     wxRendererNative::Get().DrawComboBoxDropButton(wnd, dc, rect, wxCONTROL_CURRENT);
 432                 else if (button_state == wxAUI_BUTTON_STATE_PRESSED)
 433                     wxRendererNative::Get().DrawComboBoxDropButton(wnd, dc, rect, wxCONTROL_PRESSED);
 434                 else
 435                     wxRendererNative::Get().DrawDropArrow(wnd, dc, rect);
 436             }
 437             break;
 438     }
 439
 440     *out_rect = rect;
 441 }
 442
 443
 444 int wxAuiGtkTabArt::GetBestTabCtrlSize(wxWindow* wnd,
 445                                    const wxAuiNotebookPageArray& pages,
 446                                    const wxSize& required_bmp_size)
 447 {
 448     SetMeasuringFont(m_normalFont);
 449     SetSelectedFont(m_normalFont);
 450     int tab_height = 3 * gtk_widget_get_style(wxGTKPrivate::GetNotebookWidget())->ythickness + wxAuiGenericTabArt::GetBestTabCtrlSize(wnd, pages, required_bmp_size);
 451     return tab_height;
 452 }
 453
 454 wxSize wxAuiGtkTabArt::GetTabSize(wxDC& dc,
 455                               wxWindow* wnd,
 456                               const wxString& caption,
 457                               const wxBitmap& bitmap,
 458                               bool active,
 459                               int close_button_state,
 460                               int* x_extent)
 461 {
 462     wxSize s = wxAuiGenericTabArt::GetTabSize(dc, wnd, caption, bitmap, active, close_button_state, x_extent);
 463
 464     int overlap = 0;
 465     gtk_widget_style_get (wnd->GetHandle(),
 466         "focus-line-width", &overlap,
 467         NULL);
 468     *x_extent -= overlap;
 469     return s;
 470 }
 471 #endif  // wxUSE_AUI