| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: hintanimpl.cpp |
| 3 | // Purpose: cbHintAnimationPlugin implementation. |
| 4 | // Author: Aleksandras Gluchovas |
| 5 | // Modified by: |
| 6 | // Created: 9/11/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Aleksandras Gluchovas |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "hintanimpl.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 "wx/wx.h" |
| 25 | #endif |
| 26 | |
| 27 | #include "wx/fl/hintanimpl.h" |
| 28 | |
| 29 | #define POS_UNDEFINED -32768 |
| 30 | |
| 31 | /***** Implementation for class cbHintAnimationPlugin *****/ |
| 32 | |
| 33 | // FIXME:: some of the below code should be eliminated by |
| 34 | // reusing parts of cbBarDragPlugin's implementation |
| 35 | |
| 36 | IMPLEMENT_DYNAMIC_CLASS( cbHintAnimationPlugin, cbPluginBase ) |
| 37 | |
| 38 | BEGIN_EVENT_TABLE( cbHintAnimationPlugin, cbPluginBase ) |
| 39 | |
| 40 | EVT_PL_DRAW_HINT_RECT( cbHintAnimationPlugin::OnDrawHintRect ) |
| 41 | |
| 42 | END_EVENT_TABLE() |
| 43 | |
| 44 | cbHintAnimationPlugin::cbHintAnimationPlugin(void) |
| 45 | |
| 46 | : mpScrDc( NULL ), |
| 47 | mpAnimTimer( 0 ), |
| 48 | mAnimStarted( FALSE ), |
| 49 | |
| 50 | mMorphDelay ( 5 ), |
| 51 | mMaxFrames ( 20 ), |
| 52 | mInClientHintBorder( 4 ), |
| 53 | mAccelerationOn( TRUE ) |
| 54 | {} |
| 55 | |
| 56 | cbHintAnimationPlugin::cbHintAnimationPlugin( wxFrameLayout* pPanel, int paneMask ) |
| 57 | |
| 58 | : cbPluginBase( pPanel, paneMask ), |
| 59 | mpScrDc( NULL ), |
| 60 | mpAnimTimer( 0 ), |
| 61 | mAnimStarted( FALSE ), |
| 62 | |
| 63 | mMorphDelay ( 5 ), |
| 64 | mMaxFrames ( 20 ), |
| 65 | mInClientHintBorder( 4 ), |
| 66 | mAccelerationOn( TRUE ) |
| 67 | {} |
| 68 | |
| 69 | cbHintAnimationPlugin::~cbHintAnimationPlugin() |
| 70 | { |
| 71 | if ( mpScrDc ) delete mpScrDc; |
| 72 | } |
| 73 | |
| 74 | /*** rect-tracking related methods ***/ |
| 75 | |
| 76 | void cbHintAnimationPlugin::OnDrawHintRect( cbDrawHintRectEvent& event ) |
| 77 | { |
| 78 | if ( !mAnimStarted && !mpScrDc ) |
| 79 | { |
| 80 | StartTracking(); |
| 81 | |
| 82 | mPrevInClient = event.mIsInClient; |
| 83 | |
| 84 | mPrevRect = event.mRect; |
| 85 | |
| 86 | mStopPending = FALSE; |
| 87 | } |
| 88 | |
| 89 | if ( !event.mEraseRect ) |
| 90 | { |
| 91 | // pass on current hint-rect info to the animation "thread", in |
| 92 | // order to make adjustments to the morph-target on-the-fly |
| 93 | |
| 94 | mCurRect.x = event.mRect.x; |
| 95 | mCurRect.y = event.mRect.y; |
| 96 | mCurRect.width = event.mRect.width; |
| 97 | mCurRect.height = event.mRect.height; |
| 98 | } |
| 99 | |
| 100 | // check the amount of change in the shape of hint, |
| 101 | // and start morph-effect if change is "sufficient" |
| 102 | |
| 103 | int change = abs( mCurRect.width - mPrevRect.width ) + |
| 104 | abs( mCurRect.height - mPrevRect.height ); |
| 105 | |
| 106 | if ( change > 10 && !event.mLastTime && !event.mEraseRect ) |
| 107 | { |
| 108 | if ( !mpAnimTimer ) |
| 109 | |
| 110 | mpAnimTimer = new cbHintAnimTimer(); |
| 111 | |
| 112 | // init the animation "thread", or reinit if already started |
| 113 | |
| 114 | mpAnimTimer->Init( this, mAnimStarted ); |
| 115 | |
| 116 | mAnimStarted = TRUE; |
| 117 | } |
| 118 | else |
| 119 | if ( !mAnimStarted ) |
| 120 | { |
| 121 | DoDrawHintRect( event.mRect, event.mIsInClient ); |
| 122 | |
| 123 | if ( event.mLastTime ) |
| 124 | |
| 125 | FinishTracking(); |
| 126 | |
| 127 | mPrevInClient = event.mIsInClient; |
| 128 | } |
| 129 | else |
| 130 | { |
| 131 | mCurInClient = event.mIsInClient; |
| 132 | |
| 133 | if ( event.mLastTime && mpAnimTimer ) |
| 134 | { |
| 135 | mStopPending = TRUE; |
| 136 | |
| 137 | if ( mpAnimTimer->mPrevMorphed.x != POS_UNDEFINED ) |
| 138 | |
| 139 | // erase previous rect |
| 140 | DoDrawHintRect( mpAnimTimer->mPrevMorphed, mPrevInClient ); |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | mPrevRect = event.mRect; |
| 145 | } |
| 146 | |
| 147 | #define _IMG_A 0xAA // Note: modified from _A to _IMG_A, _A was already defined (cygwin) |
| 148 | #define _IMG_B 0x00 // Note: modified from _B to _IMG_A, _B was already defined (cygwin) |
| 149 | #define _IMG_C 0x55 // Note: modified from _C to _IMG_C, for consistency reasons. |
| 150 | #define _IMG_D 0x00 // Note: modified from _D to _IMG_D, for consistency reasons. |
| 151 | |
| 152 | static const unsigned char _gCheckerImg[16] = { _IMG_A,_IMG_B,_IMG_C,_IMG_D, |
| 153 | _IMG_A,_IMG_B,_IMG_C,_IMG_D, |
| 154 | _IMG_A,_IMG_B,_IMG_C,_IMG_D, |
| 155 | _IMG_A,_IMG_B,_IMG_C,_IMG_D |
| 156 | }; |
| 157 | |
| 158 | void cbHintAnimationPlugin::StartTracking() |
| 159 | { |
| 160 | mpScrDc = new wxScreenDC; |
| 161 | |
| 162 | wxScreenDC::StartDrawingOnTop(&mpLayout->GetParentFrame()); |
| 163 | } |
| 164 | |
| 165 | void cbHintAnimationPlugin::DoDrawHintRect( wxRect& rect, bool isInClientRect) |
| 166 | { |
| 167 | wxRect scrRect; |
| 168 | |
| 169 | RectToScr( rect, scrRect ); |
| 170 | |
| 171 | int prevLF = mpScrDc->GetLogicalFunction(); |
| 172 | |
| 173 | mpScrDc->SetLogicalFunction( wxXOR ); |
| 174 | |
| 175 | if ( isInClientRect ) |
| 176 | { |
| 177 | // BUG BUG BUG (wx):: somehow stippled brush works only |
| 178 | // when the bitmap created on stack, not |
| 179 | // as a member of the class |
| 180 | |
| 181 | wxBitmap checker( (const char*)_gCheckerImg, 8,8 ); |
| 182 | |
| 183 | wxBrush checkerBrush( checker ); |
| 184 | |
| 185 | mpScrDc->SetPen( mpLayout->mNullPen ); |
| 186 | mpScrDc->SetBrush( checkerBrush ); |
| 187 | |
| 188 | int half = mInClientHintBorder / 2; |
| 189 | |
| 190 | mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y - half, |
| 191 | scrRect.width + 2*half, mInClientHintBorder ); |
| 192 | |
| 193 | mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + scrRect.height - half, |
| 194 | scrRect.width + 2*half, mInClientHintBorder ); |
| 195 | |
| 196 | mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + half - 1, |
| 197 | mInClientHintBorder, scrRect.height - 2*half + 2); |
| 198 | |
| 199 | mpScrDc->DrawRectangle( scrRect.x + scrRect.width - half, |
| 200 | scrRect.y + half - 1, |
| 201 | mInClientHintBorder, scrRect.height - 2*half + 2); |
| 202 | |
| 203 | mpScrDc->SetBrush( wxNullBrush ); |
| 204 | } |
| 205 | else |
| 206 | { |
| 207 | // otherwise draw 1-pixel thin borders |
| 208 | |
| 209 | mpScrDc->SetPen( mpLayout->mBlackPen ); |
| 210 | |
| 211 | mpScrDc->DrawLine( scrRect.x, scrRect.y, |
| 212 | scrRect.x + scrRect.width, scrRect.y ); |
| 213 | |
| 214 | mpScrDc->DrawLine( scrRect.x, scrRect.y + 1, |
| 215 | scrRect.x, scrRect.y + scrRect.height ); |
| 216 | |
| 217 | mpScrDc->DrawLine( scrRect.x+1, scrRect.y + scrRect.height, |
| 218 | scrRect.x + scrRect.width, scrRect.y + scrRect.height ); |
| 219 | |
| 220 | mpScrDc->DrawLine( scrRect.x + scrRect.width , scrRect.y, |
| 221 | scrRect.x + scrRect.width, scrRect.y + scrRect.height + 1); |
| 222 | } |
| 223 | |
| 224 | mpScrDc->SetLogicalFunction( prevLF ); |
| 225 | } |
| 226 | |
| 227 | void cbHintAnimationPlugin::DrawHintRect ( wxRect& rect, bool isInClientRect) |
| 228 | { |
| 229 | DoDrawHintRect( rect, isInClientRect ); |
| 230 | } |
| 231 | |
| 232 | void cbHintAnimationPlugin::EraseHintRect( wxRect& rect, bool isInClientRect) |
| 233 | { |
| 234 | DoDrawHintRect( rect, isInClientRect ); |
| 235 | } |
| 236 | |
| 237 | void cbHintAnimationPlugin::FinishTracking() |
| 238 | { |
| 239 | wxScreenDC::EndDrawingOnTop(); |
| 240 | |
| 241 | delete mpScrDc; |
| 242 | |
| 243 | mpScrDc = NULL; |
| 244 | } |
| 245 | |
| 246 | void cbHintAnimationPlugin::RectToScr( wxRect& frameRect, wxRect& scrRect ) |
| 247 | { |
| 248 | scrRect = frameRect; |
| 249 | |
| 250 | int x = frameRect.x, y = frameRect.y; |
| 251 | |
| 252 | mpLayout->GetParentFrame().ClientToScreen( &x, &y ); |
| 253 | |
| 254 | scrRect.x = x; |
| 255 | scrRect.y = y; |
| 256 | } |
| 257 | |
| 258 | /***** Implementation for class cbHintAnimTimer *****/ |
| 259 | |
| 260 | cbHintAnimTimer::cbHintAnimTimer(void) |
| 261 | { |
| 262 | #ifdef __WINDOWS__ |
| 263 | mLock = 0L; |
| 264 | #endif |
| 265 | |
| 266 | mPrevMorphed.x = POS_UNDEFINED; |
| 267 | } |
| 268 | |
| 269 | void cbHintAnimTimer::MorphPoint( wxPoint& origin, MorphInfoT& info, wxPoint& point ) |
| 270 | { |
| 271 | // simulate lienar movement (FOR NOW:: without acceleration) |
| 272 | |
| 273 | double k; |
| 274 | |
| 275 | if ( mpPl->mAccelerationOn ) |
| 276 | |
| 277 | k = double( mCurIter*mCurIter ) / |
| 278 | double( (mpPl->mMaxFrames - 1)*(mpPl->mMaxFrames - 1) ); |
| 279 | else |
| 280 | k = double( mCurIter ) / double( mpPl->mMaxFrames - 1 ); |
| 281 | |
| 282 | point.x = int ( double ( info.mFrom.x + double (info.mTill.x - info.mFrom.x) * k ) ); |
| 283 | |
| 284 | point.y = int ( double ( info.mFrom.y + double (info.mTill.y - info.mFrom.y) * k ) ); |
| 285 | |
| 286 | point.x += origin.x; |
| 287 | point.y += origin.y; |
| 288 | } |
| 289 | |
| 290 | void cbHintAnimTimer::Notify(void) |
| 291 | { |
| 292 | // FIXME:: "clean" implementation should use mutex to sync |
| 293 | // between GUI and animation threads |
| 294 | |
| 295 | if ( mpPl->mStopPending ) |
| 296 | { |
| 297 | Stop(); // top timer |
| 298 | |
| 299 | mpPl->FinishTracking(); |
| 300 | |
| 301 | mpPl->mStopPending = FALSE; |
| 302 | mpPl->mpAnimTimer = NULL; |
| 303 | mpPl->mAnimStarted = FALSE; |
| 304 | |
| 305 | mPrevMorphed.x = POS_UNDEFINED; |
| 306 | |
| 307 | delete this; |
| 308 | |
| 309 | return; |
| 310 | } |
| 311 | |
| 312 | wxPoint origin( mpPl->mCurRect.x, mpPl->mCurRect.y ); |
| 313 | |
| 314 | wxPoint curUpper, curLower; |
| 315 | |
| 316 | MorphPoint( origin, mUpperLeft, curUpper ); |
| 317 | MorphPoint( origin, mLowerRight, curLower ); |
| 318 | |
| 319 | if ( mPrevMorphed.x != POS_UNDEFINED ) |
| 320 | |
| 321 | // erase previous rect |
| 322 | mpPl->DoDrawHintRect( mPrevMorphed, mpPl->mPrevInClient ); |
| 323 | |
| 324 | wxRect morphed( curUpper.x, curUpper.y, |
| 325 | curLower.x - curUpper.x, |
| 326 | curLower.y - curUpper.y ); |
| 327 | |
| 328 | // draw rect of current iteration |
| 329 | mpPl->DoDrawHintRect( morphed, |
| 330 | ( mCurIter != mpPl->mMaxFrames - 1 ) |
| 331 | ? mpPl->mPrevInClient : mpPl->mCurInClient ); |
| 332 | |
| 333 | mPrevMorphed = morphed; |
| 334 | |
| 335 | if ( mCurIter == mpPl->mMaxFrames - 1 ) |
| 336 | { |
| 337 | Stop(); // top timer |
| 338 | |
| 339 | mpPl->FinishTracking(); |
| 340 | mpPl->mpAnimTimer = NULL; |
| 341 | mpPl->mAnimStarted = FALSE; |
| 342 | |
| 343 | mPrevMorphed.x = POS_UNDEFINED; |
| 344 | |
| 345 | delete this; |
| 346 | } |
| 347 | else |
| 348 | ++mCurIter; |
| 349 | } |
| 350 | |
| 351 | bool cbHintAnimTimer::Init( cbHintAnimationPlugin* pAnimPl, bool reinit ) |
| 352 | { |
| 353 | |
| 354 | mpPl = pAnimPl; |
| 355 | |
| 356 | // morph-points are set up relatively to the upper-left corner |
| 357 | // of the current hint-rectangle |
| 358 | |
| 359 | if ( !reinit ) |
| 360 | { |
| 361 | mUpperLeft.mFrom.x = mpPl->mPrevRect.x - mpPl->mCurRect.x; |
| 362 | mUpperLeft.mFrom.y = mpPl->mPrevRect.y - mpPl->mCurRect.y; |
| 363 | |
| 364 | mLowerRight.mFrom.x = ( mUpperLeft.mFrom.x + mpPl->mPrevRect.width ); |
| 365 | mLowerRight.mFrom.y = ( mUpperLeft.mFrom.y + mpPl->mPrevRect.height ); |
| 366 | } |
| 367 | else |
| 368 | { |
| 369 | wxPoint origin( mpPl->mPrevRect.x, mpPl->mPrevRect.y ); |
| 370 | |
| 371 | wxPoint curUpper, curLower; |
| 372 | |
| 373 | MorphPoint( origin, mUpperLeft, curUpper ); |
| 374 | MorphPoint( origin, mLowerRight, curLower ); |
| 375 | |
| 376 | mUpperLeft.mFrom.x = curUpper.x - mpPl->mCurRect.x; |
| 377 | mUpperLeft.mFrom.y = curUpper.y - mpPl->mCurRect.y; |
| 378 | |
| 379 | mLowerRight.mFrom.x = ( mUpperLeft.mFrom.x + curLower.x - curUpper.x ); |
| 380 | mLowerRight.mFrom.y = ( mUpperLeft.mFrom.y + curLower.y - curUpper.y ); |
| 381 | } |
| 382 | |
| 383 | mUpperLeft.mTill.x = 0; |
| 384 | mUpperLeft.mTill.y = 0; |
| 385 | |
| 386 | mLowerRight.mTill.x = mpPl->mCurRect.width; |
| 387 | mLowerRight.mTill.y = mpPl->mCurRect.height; |
| 388 | |
| 389 | mCurIter = 1; |
| 390 | |
| 391 | if ( !reinit ) |
| 392 | |
| 393 | Start( mpPl->mMorphDelay ); |
| 394 | |
| 395 | return TRUE; |
| 396 | } |
| 397 | |