| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: generic/renderg.cpp |
| 3 | // Purpose: generic implementation of wxRendererNative (for any platform) |
| 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 license |
| 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 | #ifndef WX_PRECOMP |
| 28 | #include "wx/string.h" |
| 29 | #endif //WX_PRECOMP |
| 30 | |
| 31 | #include "wx/gdicmn.h" |
| 32 | #include "wx/dc.h" |
| 33 | |
| 34 | #include "wx/settings.h" |
| 35 | #include "wx/splitter.h" |
| 36 | #include "wx/dcmirror.h" |
| 37 | #include "wx/module.h" |
| 38 | #include "wx/renderer.h" |
| 39 | |
| 40 | // ---------------------------------------------------------------------------- |
| 41 | // wxRendererGeneric: our wxRendererNative implementation |
| 42 | // ---------------------------------------------------------------------------- |
| 43 | |
| 44 | class WXDLLEXPORT wxRendererGeneric : public wxRendererNative |
| 45 | { |
| 46 | public: |
| 47 | wxRendererGeneric(); |
| 48 | |
| 49 | virtual void DrawHeaderButton(wxWindow *win, |
| 50 | wxDC& dc, |
| 51 | const wxRect& rect, |
| 52 | int flags = 0); |
| 53 | |
| 54 | virtual void DrawTreeItemButton(wxWindow *win, |
| 55 | wxDC& dc, |
| 56 | const wxRect& rect, |
| 57 | int flags = 0); |
| 58 | |
| 59 | virtual void DrawSplitterBorder(wxWindow *win, |
| 60 | wxDC& dc, |
| 61 | const wxRect& rect, |
| 62 | int flags = 0); |
| 63 | |
| 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 | virtual wxRendererVersion GetVersion() const |
| 84 | { |
| 85 | return wxRendererVersion(wxRendererVersion::Current_Version, |
| 86 | wxRendererVersion::Current_Age); |
| 87 | } |
| 88 | |
| 89 | |
| 90 | // Cleanup by deleting standard renderer |
| 91 | static void Cleanup(); |
| 92 | |
| 93 | // Get the generic object |
| 94 | static wxRendererGeneric* DoGetGeneric(); |
| 95 | |
| 96 | protected: |
| 97 | // draw the rectange using the first pen for the left and top sides and |
| 98 | // the second one for the bottom and right ones |
| 99 | void DrawShadedRect(wxDC& dc, wxRect *rect, |
| 100 | const wxPen& pen1, const wxPen& pen2); |
| 101 | |
| 102 | // the standard pens |
| 103 | wxPen m_penBlack, |
| 104 | m_penDarkGrey, |
| 105 | m_penLightGrey, |
| 106 | m_penHighlight; |
| 107 | |
| 108 | static wxRendererGeneric* sm_rendererGeneric; |
| 109 | }; |
| 110 | |
| 111 | // ============================================================================ |
| 112 | // wxRendererGeneric implementation |
| 113 | // ============================================================================ |
| 114 | |
| 115 | // Get the generic object |
| 116 | wxRendererGeneric* wxRendererGeneric::DoGetGeneric() |
| 117 | { |
| 118 | if (!sm_rendererGeneric) |
| 119 | sm_rendererGeneric = new wxRendererGeneric; |
| 120 | return sm_rendererGeneric; |
| 121 | } |
| 122 | |
| 123 | // ---------------------------------------------------------------------------- |
| 124 | // wxRendererGeneric creation |
| 125 | // ---------------------------------------------------------------------------- |
| 126 | |
| 127 | /* static */ |
| 128 | wxRendererNative& wxRendererNative::GetGeneric() |
| 129 | { |
| 130 | return * wxRendererGeneric::DoGetGeneric(); |
| 131 | } |
| 132 | |
| 133 | void wxRendererGeneric::Cleanup() |
| 134 | { |
| 135 | if (sm_rendererGeneric) |
| 136 | delete sm_rendererGeneric; |
| 137 | |
| 138 | sm_rendererGeneric = NULL; |
| 139 | } |
| 140 | |
| 141 | wxRendererGeneric* wxRendererGeneric::sm_rendererGeneric = NULL; |
| 142 | |
| 143 | wxRendererGeneric::wxRendererGeneric() |
| 144 | : m_penBlack(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW)), |
| 145 | m_penDarkGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)), |
| 146 | m_penLightGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)), |
| 147 | m_penHighlight(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHIGHLIGHT)) |
| 148 | { |
| 149 | } |
| 150 | |
| 151 | // ---------------------------------------------------------------------------- |
| 152 | // wxRendererGeneric helpers |
| 153 | // ---------------------------------------------------------------------------- |
| 154 | |
| 155 | void |
| 156 | wxRendererGeneric::DrawShadedRect(wxDC& dc, |
| 157 | wxRect *rect, |
| 158 | const wxPen& pen1, |
| 159 | const wxPen& pen2) |
| 160 | { |
| 161 | // draw the rectangle |
| 162 | dc.SetPen(pen1); |
| 163 | dc.DrawLine(rect->GetLeft(), rect->GetTop(), |
| 164 | rect->GetLeft(), rect->GetBottom()); |
| 165 | dc.DrawLine(rect->GetLeft() + 1, rect->GetTop(), |
| 166 | rect->GetRight(), rect->GetTop()); |
| 167 | dc.SetPen(pen2); |
| 168 | dc.DrawLine(rect->GetRight(), rect->GetTop(), |
| 169 | rect->GetRight(), rect->GetBottom()); |
| 170 | dc.DrawLine(rect->GetLeft(), rect->GetBottom(), |
| 171 | rect->GetRight() + 1, rect->GetBottom()); |
| 172 | |
| 173 | // adjust the rect |
| 174 | rect->Inflate(-1); |
| 175 | } |
| 176 | |
| 177 | // ---------------------------------------------------------------------------- |
| 178 | // tree/list ctrl drawing |
| 179 | // ---------------------------------------------------------------------------- |
| 180 | |
| 181 | void |
| 182 | wxRendererGeneric::DrawHeaderButton(wxWindow * WXUNUSED(win), |
| 183 | wxDC& dc, |
| 184 | const wxRect& rect, |
| 185 | int WXUNUSED(flags)) |
| 186 | { |
| 187 | const int CORNER = 1; |
| 188 | |
| 189 | const wxCoord x = rect.x, |
| 190 | y = rect.y, |
| 191 | w = rect.width, |
| 192 | h = rect.height; |
| 193 | |
| 194 | dc.SetBrush(*wxTRANSPARENT_BRUSH); |
| 195 | |
| 196 | dc.SetPen(m_penBlack); |
| 197 | dc.DrawLine( x+w-CORNER+1, y, x+w, y+h ); // right (outer) |
| 198 | dc.DrawRectangle( x, y+h, w+1, 1 ); // bottom (outer) |
| 199 | |
| 200 | dc.SetPen(m_penDarkGrey); |
| 201 | dc.DrawLine( x+w-CORNER, y, x+w-1, y+h ); // right (inner) |
| 202 | dc.DrawRectangle( x+1, y+h-1, w-2, 1 ); // bottom (inner) |
| 203 | |
| 204 | dc.SetPen(m_penHighlight); |
| 205 | dc.DrawRectangle( x, y, w-CORNER+1, 1 ); // top (outer) |
| 206 | dc.DrawRectangle( x, y, 1, h ); // left (outer) |
| 207 | dc.DrawLine( x, y+h-1, x+1, y+h-1 ); |
| 208 | dc.DrawLine( x+w-1, y, x+w-1, y+1 ); |
| 209 | } |
| 210 | |
| 211 | // draw the plus or minus sign |
| 212 | void |
| 213 | wxRendererGeneric::DrawTreeItemButton(wxWindow * WXUNUSED(win), |
| 214 | wxDC& dc, |
| 215 | const wxRect& rect, |
| 216 | int flags) |
| 217 | { |
| 218 | // white background |
| 219 | dc.SetPen(*wxGREY_PEN); |
| 220 | dc.SetBrush(*wxWHITE_BRUSH); |
| 221 | dc.DrawRectangle(rect); |
| 222 | |
| 223 | // black lines |
| 224 | const wxCoord xMiddle = rect.x + rect.width/2; |
| 225 | const wxCoord yMiddle = rect.y + rect.height/2; |
| 226 | |
| 227 | // half of the length of the horz lines in "-" and "+" |
| 228 | const wxCoord halfWidth = rect.width/2 - 2; |
| 229 | dc.SetPen(*wxBLACK_PEN); |
| 230 | dc.DrawLine(xMiddle - halfWidth, yMiddle, |
| 231 | xMiddle + halfWidth + 1, yMiddle); |
| 232 | |
| 233 | if ( !(flags & wxCONTROL_EXPANDED) ) |
| 234 | { |
| 235 | // turn "-" into "+" |
| 236 | const wxCoord halfHeight = rect.height/2 - 2; |
| 237 | dc.DrawLine(xMiddle, yMiddle - halfHeight, |
| 238 | xMiddle, yMiddle + halfHeight + 1); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | // ---------------------------------------------------------------------------- |
| 243 | // sash drawing |
| 244 | // ---------------------------------------------------------------------------- |
| 245 | |
| 246 | wxSplitterRenderParams |
| 247 | wxRendererGeneric::GetSplitterParams(const wxWindow *win) |
| 248 | { |
| 249 | // see below |
| 250 | wxCoord sashWidth, |
| 251 | border; |
| 252 | |
| 253 | if ( win->HasFlag(wxSP_3DSASH) ) |
| 254 | sashWidth = 7; |
| 255 | else if ( win->HasFlag(wxSP_NOSASH) ) |
| 256 | sashWidth = 0; |
| 257 | else // no 3D effect |
| 258 | sashWidth = 3; |
| 259 | |
| 260 | if ( win->HasFlag(wxSP_3DBORDER) ) |
| 261 | border = 2; |
| 262 | else // no 3D effect |
| 263 | border = 0; |
| 264 | |
| 265 | return wxSplitterRenderParams(sashWidth, border, false); |
| 266 | } |
| 267 | |
| 268 | void |
| 269 | wxRendererGeneric::DrawSplitterBorder(wxWindow *win, |
| 270 | wxDC& dc, |
| 271 | const wxRect& rectOrig, |
| 272 | int WXUNUSED(falgs)) |
| 273 | { |
| 274 | if ( win->HasFlag(wxSP_3DBORDER) ) |
| 275 | { |
| 276 | wxRect rect = rectOrig; |
| 277 | DrawShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight); |
| 278 | DrawShadedRect(dc, &rect, m_penBlack, m_penLightGrey); |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | void |
| 283 | wxRendererGeneric::DrawSplitterSash(wxWindow *win, |
| 284 | wxDC& dcReal, |
| 285 | const wxSize& sizeReal, |
| 286 | wxCoord position, |
| 287 | wxOrientation orient, |
| 288 | int WXUNUSED(flags)) |
| 289 | { |
| 290 | // to avoid duplicating the same code for horizontal and vertical sashes, |
| 291 | // simply mirror the DC instead if needed (i.e. if horz splitter) |
| 292 | wxMirrorDC dc(dcReal, orient != wxVERTICAL); |
| 293 | wxSize size = dc.Reflect(sizeReal); |
| 294 | |
| 295 | |
| 296 | // we draw a Win32-like grey sash with possible 3D border here: |
| 297 | // |
| 298 | // ---- this is position |
| 299 | // / |
| 300 | // v |
| 301 | // dWGGGDd |
| 302 | // GWGGGDB |
| 303 | // GWGGGDB where G is light grey (face) |
| 304 | // GWGGGDB W white (light) |
| 305 | // GWGGGDB D dark grey (shadow) |
| 306 | // GWGGGDB B black (dark shadow) |
| 307 | // GWGGGDB |
| 308 | // GWGGGDB and lower letters are our border (already drawn) |
| 309 | // GWGGGDB |
| 310 | // wWGGGDd |
| 311 | // |
| 312 | // only the middle 3 columns are drawn unless wxSP_3D is specified |
| 313 | |
| 314 | const wxCoord h = size.y; |
| 315 | wxCoord offset = 0; |
| 316 | |
| 317 | // If we're drawing the border, draw the sash 3d lines shorter |
| 318 | if ( win->HasFlag(wxSP_3DBORDER) ) |
| 319 | { |
| 320 | offset = 1; |
| 321 | } |
| 322 | |
| 323 | dc.SetPen(*wxTRANSPARENT_PEN); |
| 324 | dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE))); |
| 325 | |
| 326 | if ( win->HasFlag(wxSP_3DSASH) ) |
| 327 | { |
| 328 | // Draw the 3D sash |
| 329 | dc.DrawRectangle(position + 2, 0, 3, h); |
| 330 | |
| 331 | dc.SetPen(m_penLightGrey); |
| 332 | dc.DrawLine(position, offset, position, h - offset); |
| 333 | |
| 334 | dc.SetPen(m_penHighlight); |
| 335 | dc.DrawLine(position + 1, 0, position + 1, h); |
| 336 | |
| 337 | dc.SetPen(m_penDarkGrey); |
| 338 | dc.DrawLine(position + 5, 0, position + 5, h); |
| 339 | |
| 340 | dc.SetPen(m_penBlack); |
| 341 | dc.DrawLine(position + 6, offset, position + 6, h - offset); |
| 342 | } |
| 343 | else |
| 344 | { |
| 345 | // Draw a flat sash |
| 346 | dc.DrawRectangle(position, 0, 3, h); |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | // ---------------------------------------------------------------------------- |
| 351 | // button drawing |
| 352 | // ---------------------------------------------------------------------------- |
| 353 | |
| 354 | void |
| 355 | wxRendererGeneric::DrawComboBoxDropButton(wxWindow *win, |
| 356 | wxDC& dc, |
| 357 | const wxRect& rect, |
| 358 | int WXUNUSED(flags)) |
| 359 | { |
| 360 | // Creating a generic button background that would actually be |
| 361 | // useful is rather difficult to accomplish. Best compromise |
| 362 | // is to use window's background colour to achieve transparent' |
| 363 | // ish appearance that should look decent in combo box style |
| 364 | // controls. |
| 365 | wxColour col = win->GetBackgroundColour(); |
| 366 | dc.SetBrush(wxBrush(col)); |
| 367 | dc.SetPen(wxPen(col)); |
| 368 | dc.DrawRectangle(rect); |
| 369 | DrawDropArrow(win,dc,rect); |
| 370 | } |
| 371 | |
| 372 | |
| 373 | void |
| 374 | wxRendererGeneric::DrawDropArrow(wxWindow *win, |
| 375 | wxDC& dc, |
| 376 | const wxRect& rect, |
| 377 | int WXUNUSED(flags)) |
| 378 | { |
| 379 | // This generic implementation should be good |
| 380 | // enough for Windows platforms (including XP). |
| 381 | |
| 382 | int arrowHalf = rect.width/5; |
| 383 | int rectMid = rect.width / 2; |
| 384 | int arrowTopY = (rect.height/2) - (arrowHalf/2); |
| 385 | |
| 386 | // This should always result in arrow with odd width. |
| 387 | wxPoint pt[] = |
| 388 | { |
| 389 | wxPoint(rectMid - arrowHalf, arrowTopY), |
| 390 | wxPoint(rectMid + arrowHalf, arrowTopY), |
| 391 | wxPoint(rectMid, arrowTopY + arrowHalf) |
| 392 | }; |
| 393 | dc.SetBrush(wxBrush(win->GetForegroundColour())); |
| 394 | dc.SetPen(wxPen(win->GetForegroundColour())); |
| 395 | dc.DrawPolygon(WXSIZEOF(pt), pt, rect.x, rect.y); |
| 396 | } |
| 397 | |
| 398 | // ---------------------------------------------------------------------------- |
| 399 | // A module to allow cleanup of generic renderer. |
| 400 | // ---------------------------------------------------------------------------- |
| 401 | |
| 402 | class wxGenericRendererModule: public wxModule |
| 403 | { |
| 404 | DECLARE_DYNAMIC_CLASS(wxGenericRendererModule) |
| 405 | public: |
| 406 | wxGenericRendererModule() {} |
| 407 | bool OnInit() { return true; }; |
| 408 | void OnExit() { wxRendererGeneric::Cleanup(); }; |
| 409 | }; |
| 410 | |
| 411 | IMPLEMENT_DYNAMIC_CLASS(wxGenericRendererModule, wxModule) |
| 412 | |