| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: gtk/renderer.cpp |
| 3 | // Purpose: implementation of wxRendererNative for wxGTK |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 20.07.2003 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org> |
| 9 | // License: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // for compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #include "wx/renderer.h" |
| 28 | #include <gtk/gtk.h> |
| 29 | #include "wx/gtk/win_gtk.h" |
| 30 | |
| 31 | #include "wx/window.h" |
| 32 | #include "wx/dc.h" |
| 33 | #include "wx/dcclient.h" |
| 34 | #include "wx/settings.h" |
| 35 | |
| 36 | // RR: After a correction to the orientation of the sash |
| 37 | // this doesn't seem to be required anymore and it |
| 38 | // seems to confuse some themes so USE_ERASE_RECT=0 |
| 39 | #define USE_ERASE_RECT 0 |
| 40 | |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | // wxRendererGTK: our wxRendererNative implementation |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | |
| 45 | class WXDLLEXPORT wxRendererGTK : public wxDelegateRendererNative |
| 46 | { |
| 47 | public: |
| 48 | // draw the header control button (used by wxListCtrl) |
| 49 | virtual void DrawHeaderButton(wxWindow *win, |
| 50 | wxDC& dc, |
| 51 | const wxRect& rect, |
| 52 | int flags = 0); |
| 53 | |
| 54 | // draw the expanded/collapsed icon for a tree control item |
| 55 | virtual void DrawTreeItemButton(wxWindow *win, |
| 56 | wxDC& dc, |
| 57 | const wxRect& rect, |
| 58 | int flags = 0); |
| 59 | |
| 60 | virtual void DrawSplitterBorder(wxWindow *win, |
| 61 | wxDC& dc, |
| 62 | const wxRect& rect, |
| 63 | int flags = 0); |
| 64 | virtual void DrawSplitterSash(wxWindow *win, |
| 65 | wxDC& dc, |
| 66 | const wxSize& size, |
| 67 | wxCoord position, |
| 68 | wxOrientation orient, |
| 69 | int flags = 0); |
| 70 | |
| 71 | virtual void DrawComboBoxDropButton(wxWindow *win, |
| 72 | wxDC& dc, |
| 73 | const wxRect& rect, |
| 74 | int flags = 0); |
| 75 | |
| 76 | virtual void DrawDropArrow(wxWindow *win, |
| 77 | wxDC& dc, |
| 78 | const wxRect& rect, |
| 79 | int flags = 0); |
| 80 | |
| 81 | virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win); |
| 82 | |
| 83 | private: |
| 84 | // FIXME: shouldn't we destroy these windows somewhere? |
| 85 | |
| 86 | // used by DrawHeaderButton and DrawComboBoxDropButton |
| 87 | static GtkWidget *GetButtonWidget(); |
| 88 | |
| 89 | // used by DrawTreeItemButton() |
| 90 | static GtkWidget *GetTreeWidget(); |
| 91 | }; |
| 92 | |
| 93 | // ============================================================================ |
| 94 | // implementation |
| 95 | // ============================================================================ |
| 96 | |
| 97 | /* static */ |
| 98 | wxRendererNative& wxRendererNative::GetDefault() |
| 99 | { |
| 100 | static wxRendererGTK s_rendererGTK; |
| 101 | |
| 102 | return s_rendererGTK; |
| 103 | } |
| 104 | |
| 105 | // ---------------------------------------------------------------------------- |
| 106 | // helper functions |
| 107 | // ---------------------------------------------------------------------------- |
| 108 | |
| 109 | GtkWidget * |
| 110 | wxRendererGTK::GetButtonWidget() |
| 111 | { |
| 112 | static GtkWidget *s_button = NULL; |
| 113 | static GtkWidget *s_window = NULL; |
| 114 | |
| 115 | if ( !s_button ) |
| 116 | { |
| 117 | s_window = gtk_window_new( GTK_WINDOW_POPUP ); |
| 118 | gtk_widget_realize( s_window ); |
| 119 | s_button = gtk_button_new(); |
| 120 | gtk_container_add( GTK_CONTAINER(s_window), s_button ); |
| 121 | gtk_widget_realize( s_button ); |
| 122 | } |
| 123 | |
| 124 | return s_button; |
| 125 | } |
| 126 | |
| 127 | GtkWidget * |
| 128 | wxRendererGTK::GetTreeWidget() |
| 129 | { |
| 130 | static GtkWidget *s_tree = NULL; |
| 131 | static GtkWidget *s_window = NULL; |
| 132 | |
| 133 | if ( !s_tree ) |
| 134 | { |
| 135 | s_tree = gtk_tree_view_new(); |
| 136 | s_window = gtk_window_new( GTK_WINDOW_POPUP ); |
| 137 | gtk_widget_realize( s_window ); |
| 138 | gtk_container_add( GTK_CONTAINER(s_window), s_tree ); |
| 139 | gtk_widget_realize( s_tree ); |
| 140 | } |
| 141 | |
| 142 | return s_tree; |
| 143 | } |
| 144 | |
| 145 | // ---------------------------------------------------------------------------- |
| 146 | // list/tree controls drawing |
| 147 | // ---------------------------------------------------------------------------- |
| 148 | |
| 149 | void |
| 150 | wxRendererGTK::DrawHeaderButton(wxWindow *win, |
| 151 | wxDC& dc, |
| 152 | const wxRect& rect, |
| 153 | int flags) |
| 154 | { |
| 155 | |
| 156 | GtkWidget *button = GetButtonWidget(); |
| 157 | |
| 158 | gtk_paint_box |
| 159 | ( |
| 160 | button->style, |
| 161 | // FIXME: I suppose GTK_PIZZA(win->m_wxwindow)->bin_window doesn't work with wxMemoryDC. |
| 162 | // Maybe use code similar as in DrawComboBoxDropButton below? |
| 163 | GTK_PIZZA(win->m_wxwindow)->bin_window, |
| 164 | flags & wxCONTROL_DISABLED ? GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL, |
| 165 | GTK_SHADOW_OUT, |
| 166 | NULL, |
| 167 | button, |
| 168 | "button", |
| 169 | dc.XLOG2DEV(rect.x) -1, rect.y -1, rect.width +2, rect.height +2 |
| 170 | ); |
| 171 | } |
| 172 | |
| 173 | // draw a ">" or "v" button |
| 174 | void |
| 175 | wxRendererGTK::DrawTreeItemButton(wxWindow* win, |
| 176 | wxDC& dc, const wxRect& rect, int flags) |
| 177 | { |
| 178 | GtkWidget *tree = GetTreeWidget(); |
| 179 | |
| 180 | GtkStateType state; |
| 181 | if ( flags & wxCONTROL_CURRENT ) |
| 182 | state = GTK_STATE_PRELIGHT; |
| 183 | else |
| 184 | state = GTK_STATE_NORMAL; |
| 185 | |
| 186 | // VZ: I don't know how to get the size of the expander so as to centre it |
| 187 | // in the given rectangle, +2/3 below is just what looks good here... |
| 188 | gtk_paint_expander |
| 189 | ( |
| 190 | tree->style, |
| 191 | GTK_PIZZA(win->m_wxwindow)->bin_window, |
| 192 | state, |
| 193 | NULL, |
| 194 | tree, |
| 195 | "treeview", |
| 196 | dc.LogicalToDeviceX(rect.x) + 2, |
| 197 | dc.LogicalToDeviceY(rect.y) + 3, |
| 198 | flags & wxCONTROL_EXPANDED ? GTK_EXPANDER_EXPANDED |
| 199 | : GTK_EXPANDER_COLLAPSED |
| 200 | ); |
| 201 | } |
| 202 | |
| 203 | |
| 204 | // ---------------------------------------------------------------------------- |
| 205 | // splitter sash drawing |
| 206 | // ---------------------------------------------------------------------------- |
| 207 | |
| 208 | static int GetGtkSplitterFullSize() |
| 209 | { |
| 210 | static GtkWidget *s_paned = NULL; |
| 211 | if (s_paned == NULL) |
| 212 | s_paned = gtk_vpaned_new(); |
| 213 | |
| 214 | gint handle_size; |
| 215 | gtk_widget_style_get (s_paned, "handle_size", &handle_size, NULL); |
| 216 | |
| 217 | return handle_size; |
| 218 | } |
| 219 | |
| 220 | wxSplitterRenderParams |
| 221 | wxRendererGTK::GetSplitterParams(const wxWindow *WXUNUSED(win)) |
| 222 | { |
| 223 | // we don't draw any border, hence 0 for the second field |
| 224 | return wxSplitterRenderParams |
| 225 | ( |
| 226 | GetGtkSplitterFullSize(), |
| 227 | 0, |
| 228 | true // hot sensitive |
| 229 | ); |
| 230 | } |
| 231 | |
| 232 | void |
| 233 | wxRendererGTK::DrawSplitterBorder(wxWindow * WXUNUSED(win), |
| 234 | wxDC& WXUNUSED(dc), |
| 235 | const wxRect& WXUNUSED(rect), |
| 236 | int WXUNUSED(flags)) |
| 237 | { |
| 238 | // nothing to do |
| 239 | } |
| 240 | |
| 241 | void |
| 242 | wxRendererGTK::DrawSplitterSash(wxWindow *win, |
| 243 | wxDC& dc, |
| 244 | const wxSize& size, |
| 245 | wxCoord position, |
| 246 | wxOrientation orient, |
| 247 | int flags) |
| 248 | { |
| 249 | if ( !win->m_wxwindow->window ) |
| 250 | { |
| 251 | // window not realized yet |
| 252 | return; |
| 253 | } |
| 254 | |
| 255 | wxCoord full_size = GetGtkSplitterFullSize(); |
| 256 | |
| 257 | // are we drawing vertical or horizontal splitter? |
| 258 | const bool isVert = orient == wxVERTICAL; |
| 259 | |
| 260 | GdkRectangle rect; |
| 261 | #if USE_ERASE_RECT |
| 262 | GdkRectangle erase_rect; |
| 263 | #endif |
| 264 | |
| 265 | if ( isVert ) |
| 266 | { |
| 267 | int h = win->GetClientSize().GetHeight(); |
| 268 | |
| 269 | rect.x = position; |
| 270 | rect.y = 0; |
| 271 | rect.width = full_size; |
| 272 | rect.height = h; |
| 273 | |
| 274 | #if USE_ERASE_RECT |
| 275 | erase_rect.x = position; |
| 276 | erase_rect.y = 0; |
| 277 | erase_rect.width = full_size; |
| 278 | erase_rect.height = h; |
| 279 | #endif |
| 280 | } |
| 281 | else // horz |
| 282 | { |
| 283 | int w = win->GetClientSize().GetWidth(); |
| 284 | |
| 285 | rect.x = 0; |
| 286 | rect.y = position; |
| 287 | rect.height = full_size; |
| 288 | rect.width = w; |
| 289 | |
| 290 | #if USE_ERASE_RECT |
| 291 | erase_rect.y = position; |
| 292 | erase_rect.x = 0; |
| 293 | erase_rect.height = full_size; |
| 294 | erase_rect.width = w; |
| 295 | #endif |
| 296 | } |
| 297 | |
| 298 | #if USE_ERASE_RECT |
| 299 | // we must erase everything first, otherwise the garbage |
| 300 | // from the old sash is left when dragging it |
| 301 | gtk_paint_flat_box |
| 302 | ( |
| 303 | win->m_wxwindow->style, |
| 304 | GTK_PIZZA(win->m_wxwindow)->bin_window, |
| 305 | GTK_STATE_NORMAL, |
| 306 | GTK_SHADOW_NONE, |
| 307 | NULL, |
| 308 | win->m_wxwindow, |
| 309 | (char *)"viewportbin", // const_cast |
| 310 | erase_rect.x, |
| 311 | erase_rect.y, |
| 312 | erase_rect.width, |
| 313 | erase_rect.height |
| 314 | ); |
| 315 | #endif |
| 316 | |
| 317 | gtk_paint_handle |
| 318 | ( |
| 319 | win->m_wxwindow->style, |
| 320 | GTK_PIZZA(win->m_wxwindow)->bin_window, |
| 321 | flags & wxCONTROL_CURRENT ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL, |
| 322 | GTK_SHADOW_NONE, |
| 323 | NULL /* no clipping */, |
| 324 | win->m_wxwindow, |
| 325 | "paned", |
| 326 | rect.x, |
| 327 | rect.y, |
| 328 | rect.width, |
| 329 | rect.height, |
| 330 | isVert ? GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL |
| 331 | ); |
| 332 | } |
| 333 | |
| 334 | void |
| 335 | wxRendererGTK::DrawDropArrow(wxWindow *win, |
| 336 | wxDC& dc, |
| 337 | const wxRect& rect, |
| 338 | int flags) |
| 339 | { |
| 340 | GtkWidget *button = GetButtonWidget(); |
| 341 | |
| 342 | // If we give GTK_PIZZA(win->m_wxwindow)->bin_window as |
| 343 | // a window for gtk_paint_xxx function, then it won't |
| 344 | // work for wxMemoryDC. So that is why we assume wxDC |
| 345 | // is wxWindowDC (wxClientDC, wxMemoryDC and wxPaintDC |
| 346 | // are derived from it) and use its m_window. |
| 347 | wxWindowDC& wdc = (wxWindowDC&)dc; |
| 348 | |
| 349 | // only doing debug-time checking here (it should |
| 350 | // probably be enough) |
| 351 | wxASSERT ( wdc.IsKindOf(CLASSINFO(wxWindowDC)) ); |
| 352 | |
| 353 | // draw arrow so that there is even space horizontally |
| 354 | // on both sides |
| 355 | int arrowX = rect.width/4 + 1; |
| 356 | int arrowWidth = rect.width - (arrowX*2); |
| 357 | |
| 358 | // scale arrow's height accoording to the width |
| 359 | int arrowHeight = rect.width/3; |
| 360 | int arrowY = (rect.height-arrowHeight)/2 + |
| 361 | ((rect.height-arrowHeight) & 1); |
| 362 | |
| 363 | GtkStateType state; |
| 364 | |
| 365 | if ( flags & wxCONTROL_PRESSED ) |
| 366 | state = GTK_STATE_ACTIVE; |
| 367 | else if ( flags & wxCONTROL_DISABLED ) |
| 368 | state = GTK_STATE_INSENSITIVE; |
| 369 | else if ( flags & wxCONTROL_CURRENT ) |
| 370 | state = GTK_STATE_PRELIGHT; |
| 371 | else |
| 372 | state = GTK_STATE_NORMAL; |
| 373 | |
| 374 | // draw arrow on button |
| 375 | gtk_paint_arrow |
| 376 | ( |
| 377 | button->style, |
| 378 | wdc.m_window, |
| 379 | state, |
| 380 | flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT, |
| 381 | NULL, |
| 382 | button, |
| 383 | "arrow", |
| 384 | GTK_ARROW_DOWN, |
| 385 | FALSE, |
| 386 | rect.x + arrowX, |
| 387 | rect.y + arrowY, |
| 388 | arrowWidth, |
| 389 | arrowHeight |
| 390 | ); |
| 391 | } |
| 392 | |
| 393 | void |
| 394 | wxRendererGTK::DrawComboBoxDropButton(wxWindow *win, |
| 395 | wxDC& dc, |
| 396 | const wxRect& rect, |
| 397 | int flags) |
| 398 | { |
| 399 | GtkWidget *button = GetButtonWidget(); |
| 400 | |
| 401 | // for reason why we do this, see DrawDropArrow |
| 402 | wxWindowDC& wdc = (wxWindowDC&)dc; |
| 403 | wxASSERT ( wdc.IsKindOf(CLASSINFO(wxWindowDC)) ); |
| 404 | |
| 405 | // draw button |
| 406 | GtkStateType state; |
| 407 | |
| 408 | if ( flags & wxCONTROL_PRESSED ) |
| 409 | state = GTK_STATE_ACTIVE; |
| 410 | else if ( flags & wxCONTROL_DISABLED ) |
| 411 | state = GTK_STATE_INSENSITIVE; |
| 412 | else if ( flags & wxCONTROL_CURRENT ) |
| 413 | state = GTK_STATE_PRELIGHT; |
| 414 | else |
| 415 | state = GTK_STATE_NORMAL; |
| 416 | |
| 417 | gtk_paint_box |
| 418 | ( |
| 419 | button->style, |
| 420 | wdc.m_window, |
| 421 | state, |
| 422 | flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT, |
| 423 | NULL, |
| 424 | button, |
| 425 | "button", |
| 426 | rect.x, rect.y, rect.width, rect.height |
| 427 | ); |
| 428 | |
| 429 | // draw arrow on button |
| 430 | DrawDropArrow(win,dc,rect,flags); |
| 431 | |
| 432 | } |
| 433 | |