| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: slidermsw.cpp |
| 3 | // Purpose: wxSliderMSW |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart and Markus Holzem |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "slidrmsw.h" |
| 14 | #endif |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifdef __BORLANDC__ |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #ifndef WX_PRECOMP |
| 24 | #include <stdio.h> |
| 25 | #endif |
| 26 | |
| 27 | #include "wx/utils.h" |
| 28 | #include "wx/brush.h" |
| 29 | #include "wx/msw/slidrmsw.h" |
| 30 | #include "wx/msw/private.h" |
| 31 | |
| 32 | IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl) |
| 33 | |
| 34 | // Slider |
| 35 | wxSliderMSW::wxSliderMSW() |
| 36 | { |
| 37 | m_staticValue = 0; |
| 38 | m_staticMin = 0; |
| 39 | m_staticMax = 0; |
| 40 | m_pageSize = 1; |
| 41 | m_lineSize = 1; |
| 42 | m_rangeMax = 0; |
| 43 | m_rangeMin = 0; |
| 44 | } |
| 45 | |
| 46 | bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id, |
| 47 | int value, int minValue, int maxValue, |
| 48 | const wxPoint& pos, |
| 49 | const wxSize& size, long style, |
| 50 | const wxValidator& validator, |
| 51 | const wxString& name) |
| 52 | { |
| 53 | SetName(name); |
| 54 | #if wxUSE_VALIDATORS |
| 55 | SetValidator(validator); |
| 56 | #endif // wxUSE_VALIDATORS |
| 57 | |
| 58 | if (parent) parent->AddChild(this); |
| 59 | SetBackgroundColour(parent->GetBackgroundColour()) ; |
| 60 | SetForegroundColour(parent->GetForegroundColour()) ; |
| 61 | |
| 62 | m_staticValue = 0; |
| 63 | m_staticMin = 0; |
| 64 | m_staticMax = 0; |
| 65 | m_pageSize = 1; |
| 66 | m_lineSize = 1; |
| 67 | m_windowStyle = style; |
| 68 | |
| 69 | if ( id == -1 ) |
| 70 | m_windowId = (int)NewControlId(); |
| 71 | else |
| 72 | m_windowId = id; |
| 73 | |
| 74 | int x = pos.x; |
| 75 | int y = pos.y; |
| 76 | int width = size.x; |
| 77 | int height = size.y; |
| 78 | |
| 79 | // non-Win95 implementation |
| 80 | |
| 81 | long msStyle = WS_CHILD | WS_VISIBLE | WS_BORDER | SS_CENTER; |
| 82 | |
| 83 | if ( m_windowStyle & wxCLIP_SIBLINGS ) |
| 84 | msStyle |= WS_CLIPSIBLINGS; |
| 85 | |
| 86 | bool want3D; |
| 87 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; |
| 88 | |
| 89 | m_staticValue = (WXHWND) CreateWindowEx(exStyle, wxT("STATIC"), NULL, |
| 90 | msStyle, |
| 91 | 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(), |
| 92 | wxGetInstance(), NULL); |
| 93 | |
| 94 | // Now create min static control |
| 95 | wxString buf; |
| 96 | buf.Printf(wxT("%d"), minValue); |
| 97 | DWORD wstyle = STATIC_FLAGS; |
| 98 | if ( m_windowStyle & wxCLIP_SIBLINGS ) |
| 99 | wstyle |= WS_CLIPSIBLINGS; |
| 100 | m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), buf, |
| 101 | wstyle, |
| 102 | 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(), |
| 103 | wxGetInstance(), NULL); |
| 104 | |
| 105 | msStyle = 0; |
| 106 | if (m_windowStyle & wxSL_VERTICAL) |
| 107 | msStyle = SBS_VERT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ; |
| 108 | else |
| 109 | msStyle = SBS_HORZ | WS_CHILD | WS_VISIBLE | WS_TABSTOP ; |
| 110 | |
| 111 | HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), wxT("SCROLLBAR"), wxT(""), |
| 112 | msStyle, |
| 113 | 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId, |
| 114 | wxGetInstance(), NULL); |
| 115 | |
| 116 | m_pageSize = (int)((maxValue-minValue)/10); |
| 117 | m_rangeMax = maxValue; |
| 118 | m_rangeMin = minValue; |
| 119 | |
| 120 | ::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE); |
| 121 | ::SetScrollPos(scroll_bar, SB_CTL, value, FALSE); |
| 122 | ShowWindow(scroll_bar, SW_SHOW); |
| 123 | |
| 124 | m_hWnd = (WXHWND)scroll_bar; |
| 125 | |
| 126 | // Subclass again for purposes of dialog editing mode |
| 127 | SubclassWin(GetHWND()); |
| 128 | |
| 129 | // Finally, create max value static item |
| 130 | buf.Printf(wxT("%d"), maxValue); |
| 131 | wstyle = STATIC_FLAGS; |
| 132 | if ( m_windowStyle & wxCLIP_SIBLINGS ) |
| 133 | wstyle |= WS_CLIPSIBLINGS; |
| 134 | m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), buf, |
| 135 | wstyle, |
| 136 | 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(), |
| 137 | wxGetInstance(), NULL); |
| 138 | |
| 139 | SetFont(parent->GetFont()); |
| 140 | |
| 141 | if (GetFont().Ok()) |
| 142 | { |
| 143 | // GetFont()->RealizeResource(); |
| 144 | if (GetFont().GetResourceHandle()) |
| 145 | { |
| 146 | if ( m_staticMin ) |
| 147 | SendMessage((HWND)m_staticMin,WM_SETFONT, |
| 148 | (WPARAM)GetFont().GetResourceHandle(),0L); |
| 149 | if ( m_staticMax ) |
| 150 | SendMessage((HWND)m_staticMax,WM_SETFONT, |
| 151 | (WPARAM)GetFont().GetResourceHandle(),0L); |
| 152 | if (m_staticValue) |
| 153 | SendMessage((HWND)m_staticValue,WM_SETFONT, |
| 154 | (WPARAM)GetFont().GetResourceHandle(),0L); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | SetSize(x, y, width, height); |
| 159 | SetValue(value); |
| 160 | |
| 161 | return TRUE; |
| 162 | } |
| 163 | |
| 164 | bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam, |
| 165 | WXWORD pos, WXHWND control) |
| 166 | { |
| 167 | int position = ::GetScrollPos((HWND)control, SB_CTL); |
| 168 | |
| 169 | int nScrollInc; |
| 170 | wxEventType scrollEvent = wxEVT_NULL; |
| 171 | switch ( wParam ) |
| 172 | { |
| 173 | case SB_TOP: |
| 174 | nScrollInc = m_rangeMax - position; |
| 175 | scrollEvent = wxEVT_SCROLL_TOP; |
| 176 | break; |
| 177 | |
| 178 | case SB_BOTTOM: |
| 179 | nScrollInc = - position; |
| 180 | scrollEvent = wxEVT_SCROLL_BOTTOM; |
| 181 | break; |
| 182 | |
| 183 | case SB_LINEUP: |
| 184 | nScrollInc = - GetLineSize(); |
| 185 | scrollEvent = wxEVT_SCROLL_LINEUP; |
| 186 | break; |
| 187 | |
| 188 | case SB_LINEDOWN: |
| 189 | nScrollInc = GetLineSize(); |
| 190 | scrollEvent = wxEVT_SCROLL_LINEDOWN; |
| 191 | break; |
| 192 | |
| 193 | case SB_PAGEUP: |
| 194 | nScrollInc = -GetPageSize(); |
| 195 | scrollEvent = wxEVT_SCROLL_PAGEUP; |
| 196 | break; |
| 197 | |
| 198 | case SB_PAGEDOWN: |
| 199 | nScrollInc = GetPageSize(); |
| 200 | scrollEvent = wxEVT_SCROLL_PAGEDOWN; |
| 201 | break; |
| 202 | |
| 203 | case SB_THUMBTRACK: |
| 204 | case SB_THUMBPOSITION: |
| 205 | #ifdef __WIN32__ |
| 206 | nScrollInc = (signed short)pos - position; |
| 207 | #else |
| 208 | nScrollInc = pos - position; |
| 209 | #endif |
| 210 | scrollEvent = wxEVT_SCROLL_THUMBTRACK; |
| 211 | break; |
| 212 | |
| 213 | default: |
| 214 | nScrollInc = 0; |
| 215 | } |
| 216 | |
| 217 | if (nScrollInc == 0) |
| 218 | { |
| 219 | // no event... |
| 220 | return FALSE; |
| 221 | } |
| 222 | |
| 223 | int newPos = position + nScrollInc; |
| 224 | |
| 225 | if ( (newPos < GetMin()) || (newPos > GetMax()) ) |
| 226 | { |
| 227 | // out of range - but we did process it |
| 228 | return TRUE; |
| 229 | } |
| 230 | |
| 231 | SetValue(newPos); |
| 232 | |
| 233 | wxScrollEvent event(scrollEvent, m_windowId); |
| 234 | event.SetPosition(newPos); |
| 235 | event.SetEventObject( this ); |
| 236 | GetEventHandler()->ProcessEvent(event); |
| 237 | |
| 238 | wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() ); |
| 239 | cevent.SetInt( newPos ); |
| 240 | cevent.SetEventObject( this ); |
| 241 | |
| 242 | return GetEventHandler()->ProcessEvent( cevent ); |
| 243 | } |
| 244 | |
| 245 | wxSliderMSW::~wxSliderMSW() |
| 246 | { |
| 247 | if (m_staticMin) |
| 248 | DestroyWindow((HWND) m_staticMin); |
| 249 | if (m_staticMax) |
| 250 | DestroyWindow((HWND) m_staticMax); |
| 251 | if (m_staticValue) |
| 252 | DestroyWindow((HWND) m_staticValue); |
| 253 | } |
| 254 | |
| 255 | int wxSliderMSW::GetValue() const |
| 256 | { |
| 257 | return ::GetScrollPos(GetHwnd(), SB_CTL); |
| 258 | } |
| 259 | |
| 260 | void wxSliderMSW::SetValue(int value) |
| 261 | { |
| 262 | ::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE); |
| 263 | if (m_staticValue) |
| 264 | { |
| 265 | wxString buf; |
| 266 | buf.Printf(wxT("%d"), value); |
| 267 | SetWindowText((HWND) m_staticValue, buf); |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | void wxSliderMSW::GetSize(int *width, int *height) const |
| 272 | { |
| 273 | RECT rect; |
| 274 | rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1; |
| 275 | |
| 276 | wxFindMaxSize(GetHWND(), &rect); |
| 277 | |
| 278 | if (m_staticMin) |
| 279 | wxFindMaxSize(m_staticMin, &rect); |
| 280 | if (m_staticMax) |
| 281 | wxFindMaxSize(m_staticMax, &rect); |
| 282 | if (m_staticValue) |
| 283 | wxFindMaxSize(m_staticValue, &rect); |
| 284 | |
| 285 | *width = rect.right - rect.left; |
| 286 | *height = rect.bottom - rect.top; |
| 287 | } |
| 288 | |
| 289 | void wxSliderMSW::GetPosition(int *x, int *y) const |
| 290 | { |
| 291 | wxWindow *parent = GetParent(); |
| 292 | RECT rect; |
| 293 | rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1; |
| 294 | |
| 295 | wxFindMaxSize(GetHWND(), &rect); |
| 296 | |
| 297 | if (m_staticMin) |
| 298 | wxFindMaxSize(m_staticMin, &rect); |
| 299 | if (m_staticMax) |
| 300 | wxFindMaxSize(m_staticMax, &rect); |
| 301 | if (m_staticValue) |
| 302 | wxFindMaxSize(m_staticValue, &rect); |
| 303 | |
| 304 | // Since we now have the absolute screen coords, |
| 305 | // if there's a parent we must subtract its top left corner |
| 306 | POINT point; |
| 307 | point.x = rect.left; |
| 308 | point.y = rect.top; |
| 309 | if (parent) |
| 310 | ::ScreenToClient((HWND) parent->GetHWND(), &point); |
| 311 | |
| 312 | // We may be faking the client origin. |
| 313 | // So a window that's really at (0, 30) may appear |
| 314 | // (to wxWin apps) to be at (0, 0). |
| 315 | if (GetParent()) |
| 316 | { |
| 317 | wxPoint pt(GetParent()->GetClientAreaOrigin()); |
| 318 | point.x -= pt.x; |
| 319 | point.y -= pt.y; |
| 320 | } |
| 321 | *x = point.x; |
| 322 | *y = point.y; |
| 323 | } |
| 324 | |
| 325 | // TODO one day, make sense of all this horros and replace it with a readable |
| 326 | // DoGetBestSize() |
| 327 | void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags) |
| 328 | { |
| 329 | int x1 = x; |
| 330 | int y1 = y; |
| 331 | int w1 = width; |
| 332 | int h1 = height; |
| 333 | |
| 334 | int currentX, currentY; |
| 335 | GetPosition(¤tX, ¤tY); |
| 336 | if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) |
| 337 | x1 = currentX; |
| 338 | if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) |
| 339 | y1 = currentY; |
| 340 | |
| 341 | AdjustForParentClientOrigin(x1, y1, sizeFlags); |
| 342 | |
| 343 | wxChar buf[300]; |
| 344 | |
| 345 | int x_offset = x; |
| 346 | int y_offset = y; |
| 347 | |
| 348 | int cx; // slider,min,max sizes |
| 349 | int cy; |
| 350 | int cyf; |
| 351 | |
| 352 | wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont()); |
| 353 | |
| 354 | if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL) |
| 355 | { |
| 356 | if ( m_windowStyle & wxSL_LABELS ) |
| 357 | { |
| 358 | int min_len = 0; |
| 359 | |
| 360 | GetWindowText((HWND) m_staticMin, buf, 300); |
| 361 | GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont()); |
| 362 | |
| 363 | int max_len = 0; |
| 364 | |
| 365 | GetWindowText((HWND) m_staticMax, buf, 300); |
| 366 | GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont()); |
| 367 | if (m_staticValue) |
| 368 | { |
| 369 | int new_width = (int)(wxMax(min_len, max_len)); |
| 370 | int valueHeight = (int)cyf; |
| 371 | #ifdef __WIN32__ |
| 372 | // For some reason, under Win95, the text edit control has |
| 373 | // a lot of space before the first character |
| 374 | new_width += 3*cx; |
| 375 | #endif |
| 376 | MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE); |
| 377 | x_offset += new_width + cx; |
| 378 | } |
| 379 | |
| 380 | MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE); |
| 381 | x_offset += (int)(min_len + cx); |
| 382 | |
| 383 | int slider_length = (int)(w1 - x_offset - max_len - cx); |
| 384 | |
| 385 | int slider_height = cy; |
| 386 | |
| 387 | // Slider must have a minimum/default length/height |
| 388 | if (slider_length < 100) |
| 389 | slider_length = 100; |
| 390 | |
| 391 | MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE); |
| 392 | x_offset += slider_length + cx; |
| 393 | |
| 394 | MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE); |
| 395 | } |
| 396 | else |
| 397 | { |
| 398 | // No labels |
| 399 | if ( w1 < 0 ) |
| 400 | w1 = 200; |
| 401 | if ( h1 < 0 ) |
| 402 | h1 = 20; |
| 403 | MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE); |
| 404 | } |
| 405 | } |
| 406 | else |
| 407 | { |
| 408 | if ( m_windowStyle & wxSL_LABELS ) |
| 409 | { |
| 410 | int min_len; |
| 411 | GetWindowText((HWND) m_staticMin, buf, 300); |
| 412 | GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont()); |
| 413 | |
| 414 | int max_len; |
| 415 | GetWindowText((HWND) m_staticMax, buf, 300); |
| 416 | GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont()); |
| 417 | |
| 418 | if (m_staticValue) |
| 419 | { |
| 420 | int new_width = (int)(wxMax(min_len, max_len)); |
| 421 | int valueHeight = (int)cyf; |
| 422 | /*** Suggested change by George Tasker - remove this block... |
| 423 | #ifdef __WIN32__ |
| 424 | // For some reason, under Win95, the text edit control has |
| 425 | // a lot of space before the first character |
| 426 | new_width += 3*cx; |
| 427 | #endif |
| 428 | ... and replace with following line: */ |
| 429 | new_width += cx; |
| 430 | |
| 431 | MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE); |
| 432 | y_offset += valueHeight; |
| 433 | } |
| 434 | |
| 435 | MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE); |
| 436 | y_offset += cy; |
| 437 | |
| 438 | int slider_length = (int)(h1 - y_offset - cy - cy); |
| 439 | |
| 440 | // Use character height as an estimate of slider width (yes, width) |
| 441 | int slider_width = cy; |
| 442 | |
| 443 | // Slider must have a minimum/default length |
| 444 | if (slider_length < 100) |
| 445 | slider_length = 100; |
| 446 | |
| 447 | MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE); |
| 448 | y_offset += slider_length; |
| 449 | |
| 450 | MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE); |
| 451 | } |
| 452 | else |
| 453 | { |
| 454 | // No labels |
| 455 | if ( w1 < 0 ) |
| 456 | w1 = 20; |
| 457 | if ( h1 < 0 ) |
| 458 | h1 = 200; |
| 459 | MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE); |
| 460 | } |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | void wxSliderMSW::SetRange(int minValue, int maxValue) |
| 465 | { |
| 466 | m_rangeMin = minValue; |
| 467 | m_rangeMax = maxValue; |
| 468 | |
| 469 | ::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE); |
| 470 | wxChar buf[40]; |
| 471 | if ( m_staticMin ) |
| 472 | { |
| 473 | wxSprintf(buf, wxT("%d"), m_rangeMin); |
| 474 | SetWindowText((HWND) m_staticMin, buf); |
| 475 | } |
| 476 | |
| 477 | if ( m_staticMax ) |
| 478 | { |
| 479 | wxSprintf(buf, wxT("%d"), m_rangeMax); |
| 480 | SetWindowText((HWND) m_staticMax, buf); |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, |
| 485 | WXUINT message, WXWPARAM wParam, WXLPARAM lParam) |
| 486 | { |
| 487 | if ( nCtlColor == CTLCOLOR_SCROLLBAR ) |
| 488 | return 0; |
| 489 | |
| 490 | // Otherwise, it's a static |
| 491 | return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam); |
| 492 | } |
| 493 | |
| 494 | void wxSliderMSW::SetPageSize(int pageSize) |
| 495 | { |
| 496 | m_pageSize = pageSize; |
| 497 | } |
| 498 | |
| 499 | int wxSliderMSW::GetPageSize() const |
| 500 | { |
| 501 | return m_pageSize; |
| 502 | } |
| 503 | |
| 504 | void wxSliderMSW::SetLineSize(int lineSize) |
| 505 | { |
| 506 | m_lineSize = lineSize; |
| 507 | } |
| 508 | |
| 509 | int wxSliderMSW::GetLineSize() const |
| 510 | { |
| 511 | return m_lineSize; |
| 512 | } |
| 513 | |
| 514 | // Not yet implemented |
| 515 | void wxSliderMSW::SetThumbLength(int WXUNUSED(lenPixels)) |
| 516 | { |
| 517 | } |
| 518 | |
| 519 | // Not yet implemented |
| 520 | int wxSliderMSW::GetThumbLength() const |
| 521 | { |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const |
| 526 | { |
| 527 | return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() ); |
| 528 | } |
| 529 | |
| 530 | void wxSliderMSW::Command (wxCommandEvent & event) |
| 531 | { |
| 532 | SetValue (event.GetInt()); |
| 533 | ProcessCommand (event); |
| 534 | } |
| 535 | |
| 536 | bool wxSliderMSW::Show(bool show) |
| 537 | { |
| 538 | wxWindow::Show(show); |
| 539 | |
| 540 | int cshow; |
| 541 | if (show) |
| 542 | cshow = SW_SHOW; |
| 543 | else |
| 544 | cshow = SW_HIDE; |
| 545 | |
| 546 | if(m_staticValue) |
| 547 | ShowWindow((HWND) m_staticValue, (BOOL)cshow); |
| 548 | if(m_staticMin) |
| 549 | ShowWindow((HWND) m_staticMin, (BOOL)cshow); |
| 550 | if(m_staticMax) |
| 551 | ShowWindow((HWND) m_staticMax, (BOOL)cshow); |
| 552 | return TRUE; |
| 553 | } |
| 554 | |
| 555 | |