home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 10 Tools
/
10-Tools.zip
/
wxos2233.zip
/
wxOS2-2_3_3.zip
/
wxWindows-2.3.3
/
contrib
/
src
/
fl
/
hintanimpl.cpp
< prev
next >
Wrap
C/C++ Source or Header
|
2002-01-21
|
11KB
|
398 lines
/////////////////////////////////////////////////////////////////////////////
// Name: hintanimpl.cpp
// Purpose: cbHintAnimationPlugin implementation.
// Author: Aleksandras Gluchovas
// Modified by:
// Created: 9/11/98
// RCS-ID: $Id: hintanimpl.cpp,v 1.2 2002/01/21 22:34:42 JS Exp $
// Copyright: (c) Aleksandras Gluchovas
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "hintanimpl.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/fl/hintanimpl.h"
#define POS_UNDEFINED -32768
/***** Implementation for class cbHintAnimationPlugin *****/
// FIXME:: some of the below code should be eliminated by
// reusing parts of cbBarDragPlugin's implementation
IMPLEMENT_DYNAMIC_CLASS( cbHintAnimationPlugin, cbPluginBase )
BEGIN_EVENT_TABLE( cbHintAnimationPlugin, cbPluginBase )
EVT_PL_DRAW_HINT_RECT( cbHintAnimationPlugin::OnDrawHintRect )
END_EVENT_TABLE()
cbHintAnimationPlugin::cbHintAnimationPlugin(void)
: mpScrDc( NULL ),
mpAnimTimer( 0 ),
mAnimStarted( FALSE ),
mMorphDelay ( 5 ),
mMaxFrames ( 20 ),
mInClientHintBorder( 4 ),
mAccelerationOn( TRUE )
{}
cbHintAnimationPlugin::cbHintAnimationPlugin( wxFrameLayout* pPanel, int paneMask )
: cbPluginBase( pPanel, paneMask ),
mpScrDc( NULL ),
mpAnimTimer( 0 ),
mAnimStarted( FALSE ),
mMorphDelay ( 5 ),
mMaxFrames ( 20 ),
mInClientHintBorder( 4 ),
mAccelerationOn( TRUE )
{}
cbHintAnimationPlugin::~cbHintAnimationPlugin()
{
if ( mpScrDc ) delete mpScrDc;
}
/*** rect-tracking related methods ***/
void cbHintAnimationPlugin::OnDrawHintRect( cbDrawHintRectEvent& event )
{
if ( !mAnimStarted && !mpScrDc )
{
StartTracking();
mPrevInClient = event.mIsInClient;
mPrevRect = event.mRect;
mStopPending = FALSE;
}
if ( !event.mEraseRect )
{
// pass on current hint-rect info to the animation "thread", in
// order to make adjustments to the morph-target on-the-fly
mCurRect.x = event.mRect.x;
mCurRect.y = event.mRect.y;
mCurRect.width = event.mRect.width;
mCurRect.height = event.mRect.height;
}
// check the amount of change in the shape of hint,
// and start morph-effect if change is "sufficient"
int change = abs( mCurRect.width - mPrevRect.width ) +
abs( mCurRect.height - mPrevRect.height );
if ( change > 10 && !event.mLastTime && !event.mEraseRect )
{
if ( !mpAnimTimer )
mpAnimTimer = new cbHintAnimTimer();
// init the animation "thread", or reinit if already started
mpAnimTimer->Init( this, mAnimStarted );
mAnimStarted = TRUE;
}
else
if ( !mAnimStarted )
{
DoDrawHintRect( event.mRect, event.mIsInClient );
if ( event.mLastTime )
FinishTracking();
mPrevInClient = event.mIsInClient;
}
else
{
mCurInClient = event.mIsInClient;
if ( event.mLastTime && mpAnimTimer )
{
mStopPending = TRUE;
if ( mpAnimTimer->mPrevMorphed.x != POS_UNDEFINED )
// erase previous rect
DoDrawHintRect( mpAnimTimer->mPrevMorphed, mPrevInClient );
}
}
mPrevRect = event.mRect;
}
#define _IMG_A 0xAA // Note: modified from _A to _IMG_A, _A was already defined (cygwin)
#define _IMG_B 0x00 // Note: modified from _B to _IMG_A, _B was already defined (cygwin)
#define _IMG_C 0x55 // Note: modified from _C to _IMG_C, for consistency reasons.
#define _IMG_D 0x00 // Note: modified from _D to _IMG_D, for consistency reasons.
static const unsigned char _gCheckerImg[16] = { _IMG_A,_IMG_B,_IMG_C,_IMG_D,
_IMG_A,_IMG_B,_IMG_C,_IMG_D,
_IMG_A,_IMG_B,_IMG_C,_IMG_D,
_IMG_A,_IMG_B,_IMG_C,_IMG_D
};
void cbHintAnimationPlugin::StartTracking()
{
mpScrDc = new wxScreenDC;
wxScreenDC::StartDrawingOnTop(&mpLayout->GetParentFrame());
}
void cbHintAnimationPlugin::DoDrawHintRect( wxRect& rect, bool isInClientRect)
{
wxRect scrRect;
RectToScr( rect, scrRect );
int prevLF = mpScrDc->GetLogicalFunction();
mpScrDc->SetLogicalFunction( wxXOR );
if ( isInClientRect )
{
// BUG BUG BUG (wx):: somehow stippled brush works only
// when the bitmap created on stack, not
// as a member of the class
wxBitmap checker( (const char*)_gCheckerImg, 8,8 );
wxBrush checkerBrush( checker );
mpScrDc->SetPen( mpLayout->mNullPen );
mpScrDc->SetBrush( checkerBrush );
int half = mInClientHintBorder / 2;
mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y - half,
scrRect.width + 2*half, mInClientHintBorder );
mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + scrRect.height - half,
scrRect.width + 2*half, mInClientHintBorder );
mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + half - 1,
mInClientHintBorder, scrRect.height - 2*half + 2);
mpScrDc->DrawRectangle( scrRect.x + scrRect.width - half,
scrRect.y + half - 1,
mInClientHintBorder, scrRect.height - 2*half + 2);
mpScrDc->SetBrush( wxNullBrush );
}
else
{
// otherwise draw 1-pixel thin borders
mpScrDc->SetPen( mpLayout->mBlackPen );
mpScrDc->DrawLine( scrRect.x, scrRect.y,
scrRect.x + scrRect.width, scrRect.y );
mpScrDc->DrawLine( scrRect.x, scrRect.y + 1,
scrRect.x, scrRect.y + scrRect.height );
mpScrDc->DrawLine( scrRect.x+1, scrRect.y + scrRect.height,
scrRect.x + scrRect.width, scrRect.y + scrRect.height );
mpScrDc->DrawLine( scrRect.x + scrRect.width , scrRect.y,
scrRect.x + scrRect.width, scrRect.y + scrRect.height + 1);
}
mpScrDc->SetLogicalFunction( prevLF );
}
void cbHintAnimationPlugin::DrawHintRect ( wxRect& rect, bool isInClientRect)
{
DoDrawHintRect( rect, isInClientRect );
}
void cbHintAnimationPlugin::EraseHintRect( wxRect& rect, bool isInClientRect)
{
DoDrawHintRect( rect, isInClientRect );
}
void cbHintAnimationPlugin::FinishTracking()
{
wxScreenDC::EndDrawingOnTop();
delete mpScrDc;
mpScrDc = NULL;
}
void cbHintAnimationPlugin::RectToScr( wxRect& frameRect, wxRect& scrRect )
{
scrRect = frameRect;
int x = frameRect.x, y = frameRect.y;
mpLayout->GetParentFrame().ClientToScreen( &x, &y );
scrRect.x = x;
scrRect.y = y;
}
/***** Implementation for class cbHintAnimTimer *****/
cbHintAnimTimer::cbHintAnimTimer(void)
{
#ifdef __WINDOWS__
mLock = 0L;
#endif
mPrevMorphed.x = POS_UNDEFINED;
}
void cbHintAnimTimer::MorphPoint( wxPoint& origin, MorphInfoT& info, wxPoint& point )
{
// simulate lienar movement (FOR NOW:: without acceleration)
double k;
if ( mpPl->mAccelerationOn )
k = double( mCurIter*mCurIter ) /
double( (mpPl->mMaxFrames - 1)*(mpPl->mMaxFrames - 1) );
else
k = double( mCurIter ) / double( mpPl->mMaxFrames - 1 );
point.x = int ( double ( info.mFrom.x + double (info.mTill.x - info.mFrom.x) * k ) );
point.y = int ( double ( info.mFrom.y + double (info.mTill.y - info.mFrom.y) * k ) );
point.x += origin.x;
point.y += origin.y;
}
void cbHintAnimTimer::Notify(void)
{
// FIXME:: "clean" implementation should use mutex to sync
// between GUI and animation threads
if ( mpPl->mStopPending )
{
Stop(); // top timer
mpPl->FinishTracking();
mpPl->mStopPending = FALSE;
mpPl->mpAnimTimer = NULL;
mpPl->mAnimStarted = FALSE;
mPrevMorphed.x = POS_UNDEFINED;
delete this;
return;
}
wxPoint origin( mpPl->mCurRect.x, mpPl->mCurRect.y );
wxPoint curUpper, curLower;
MorphPoint( origin, mUpperLeft, curUpper );
MorphPoint( origin, mLowerRight, curLower );
if ( mPrevMorphed.x != POS_UNDEFINED )
// erase previous rect
mpPl->DoDrawHintRect( mPrevMorphed, mpPl->mPrevInClient );
wxRect morphed( curUpper.x, curUpper.y,
curLower.x - curUpper.x,
curLower.y - curUpper.y );
// draw rect of current iteration
mpPl->DoDrawHintRect( morphed,
( mCurIter != mpPl->mMaxFrames - 1 )
? mpPl->mPrevInClient : mpPl->mCurInClient );
mPrevMorphed = morphed;
if ( mCurIter == mpPl->mMaxFrames - 1 )
{
Stop(); // top timer
mpPl->FinishTracking();
mpPl->mpAnimTimer = NULL;
mpPl->mAnimStarted = FALSE;
mPrevMorphed.x = POS_UNDEFINED;
delete this;
}
else
++mCurIter;
}
bool cbHintAnimTimer::Init( cbHintAnimationPlugin* pAnimPl, bool reinit )
{
mpPl = pAnimPl;
// morph-points are set up relatively to the upper-left corner
// of the current hint-rectangle
if ( !reinit )
{
mUpperLeft.mFrom.x = mpPl->mPrevRect.x - mpPl->mCurRect.x;
mUpperLeft.mFrom.y = mpPl->mPrevRect.y - mpPl->mCurRect.y;
mLowerRight.mFrom.x = ( mUpperLeft.mFrom.x + mpPl->mPrevRect.width );
mLowerRight.mFrom.y = ( mUpperLeft.mFrom.y + mpPl->mPrevRect.height );
}
else
{
wxPoint origin( mpPl->mPrevRect.x, mpPl->mPrevRect.y );
wxPoint curUpper, curLower;
MorphPoint( origin, mUpperLeft, curUpper );
MorphPoint( origin, mLowerRight, curLower );
mUpperLeft.mFrom.x = curUpper.x - mpPl->mCurRect.x;
mUpperLeft.mFrom.y = curUpper.y - mpPl->mCurRect.y;
mLowerRight.mFrom.x = ( mUpperLeft.mFrom.x + curLower.x - curUpper.x );
mLowerRight.mFrom.y = ( mUpperLeft.mFrom.y + curLower.y - curUpper.y );
}
mUpperLeft.mTill.x = 0;
mUpperLeft.mTill.y = 0;
mLowerRight.mTill.x = mpPl->mCurRect.width;
mLowerRight.mTill.y = mpPl->mCurRect.height;
mCurIter = 1;
if ( !reinit )
Start( mpPl->mMorphDelay );
return TRUE;
}