void VideoSlider::OnMouse(wxMouseEvent &event) {
int x = event.GetX();
if (event.ButtonIsDown(wxMOUSE_BTN_LEFT)) {
// If the slider didn't already have focus, don't seek if the user
// clicked very close to the current location as they were probably
// just trying to focus the slider
if (wxWindow::FindFocus() != this && abs(x - GetXAtValue(val)) < 4) {
SetFocus();
return;
}
// Shift click to snap to keyframe
if (event.m_shiftDown) {
int clickedFrame = GetValueAtX(x);
std::vector<int>::const_iterator pos = lower_bound(keyframes.begin(), keyframes.end(), clickedFrame);
if (pos == keyframes.end())
--pos;
else if (pos + 1 != keyframes.end() && clickedFrame - *pos > (*pos + 1) - clickedFrame)
++pos;
if (*pos == val) return;
SetValue(*pos);
}
// Normal click
else {
int go = GetValueAtX(x);
if (go == val) return;
SetValue(go);
}
if (c->videoController->IsPlaying()) {
c->videoController->Stop();
c->videoController->JumpToFrame(val);
c->videoController->Play();
}
else
c->videoController->JumpToFrame(val);
SetFocus();
return;
}
if (event.ButtonDown(wxMOUSE_BTN_RIGHT) || event.ButtonDown(wxMOUSE_BTN_MIDDLE)) {
SetFocus();
}
else if (!c->videoController->IsPlaying())
event.Skip();
}
bool Envelope::HandleMouseButtonDown(wxMouseEvent & event, wxRect & r,
double h, double pps, bool dB,
float zoomMin, float zoomMax)
{
bool upper;
int ctr = (int)(r.height * zoomMax / (zoomMax - zoomMin));
upper = (event.m_y - r.y < ctr);
int clip_y = event.m_y - r.y;
if(clip_y < 0) clip_y = 0;
if(clip_y > r.height) clip_y = r.height;
mIsDeleting = false;
double tleft = h - mOffset;
double tright = tleft + (r.width / pps);
int bestNum = -1;
int bestDist = 10; // Must be within 10 pixel radius.
double dBr = gPrefs->Read("/GUI/EnvdBRange", ENV_DB_RANGE);
mContourOffset = false;
// wxLogDebug("Y:%i Height:%i Offset:%i", y, height, mContourOffset );
int len = mEnv.Count();
for (int i = 0; i < len; i++) {
if (mEnv[i]->t >= tleft && mEnv[i]->t <= tright) {
int x = int ((mEnv[i]->t + mOffset - h) * pps) + r.x;
int y[4];
int numControlPoints;
// Outer control points
y[0] = GetWaveYPosNew( mEnv[i]->val, zoomMin, zoomMax, r.height,
dB, true, dBr, false);
y[1] = GetWaveYPosNew( -mEnv[i]->val, zoomMin, zoomMax, r.height,
dB, true, dBr, false);
// Inner control points(contour)
y[2] = GetWaveYPosNew( mEnv[i]->val, zoomMin, zoomMax, r.height,
dB, false, dBr, false);
y[3] = GetWaveYPosNew( -mEnv[i]->val-.00000001, zoomMin, zoomMax,
r.height, dB, false, dBr, false);
numControlPoints = 4;
if (y[2] > y[3])
numControlPoints = 2;
if (!mMirror)
numControlPoints = 1;
for(int j=0; j<numControlPoints; j++){
int d = (int)(sqrt((double)(SQR(x-event.m_x) + SQR(y[j]-(event.m_y-r.y)))) + 0.5);
if (d < bestDist) {
bestNum = i;
bestDist = d;
mContourOffset = (bool)(j > 1);
}
}
}
}
if (bestNum >= 0) {
mDragPoint = bestNum;
}
else {
// Create new point
double when = h + (event.m_x - r.x) / pps - mOffset;
// if (when <= 0 || when >= mTrackLen)
// return false;
double v = GetValueAtX( event.m_x, r, h, pps );
int ct = GetWaveYPosNew( v, zoomMin, zoomMax, r.height, dB,
false, dBr, false) ;
int cb = GetWaveYPosNew( -v-.000000001, zoomMin, zoomMax, r.height, dB,
false, dBr, false) ;
if( ct <= cb || !mMirror ){
int t = GetWaveYPosNew( v, zoomMin, zoomMax, r.height, dB,
true, dBr, false) ;
int b = GetWaveYPosNew( -v, zoomMin, zoomMax, r.height, dB,
true, dBr, false) ;
ct = (t + ct) / 2;
cb = (b + cb) / 2;
if(mMirror &&
(event.m_y - r.y) > ct &&
((event.m_y - r.y) < cb))
mContourOffset = true;
else
mContourOffset = false;
}
double newVal = ValueOfPixel(clip_y, r.height, upper, dB,
zoomMin, zoomMax);
//float MaxAmplify = ( mContourOffset ) ? 1.4 : 1.0;
float MaxAmplify = 2.0;
if (newVal > MaxAmplify)
newVal = MaxAmplify;
mDragPoint = Insert(when, newVal);
mDirty = true;
}
mUpper = upper;
mInitialWhen = mEnv[mDragPoint]->t;
mInitialVal = mEnv[mDragPoint]->val;
mInitialX = event.m_x;
mInitialY = event.m_y+mContourOffset;
return true;
}
/// HandleMouseButtonDown either finds an existing control point or adds a new one
/// which is then recorded as the point to drag.
/// This is slightly complicated by there possibly being four control points for
/// a given time value:
/// We have an upper and lower envelope line.
/// Also we may be showing an inner envelope (at 0.5 the range).
bool Envelope::HandleMouseButtonDown(wxMouseEvent & event, wxRect & r,
double h, double pps, bool dB,
float zoomMin, float zoomMax)
{
int ctr = (int)(r.height * zoomMax / (zoomMax - zoomMin));
bool upper = !mMirror || (zoomMin >= 0.0) || (event.m_y - r.y < ctr);
int clip_y = event.m_y - r.y;
if(clip_y < 0) clip_y = 0; //keeps point in rect r, even if mouse isn't
if(clip_y > r.GetBottom()) clip_y = r.GetBottom();
double tleft = h - mOffset;
double tright = tleft + (r.width / pps);
int bestNum = -1;
int bestDist = 10; // Must be within 10 pixel radius.
// TODO: Cache the gPrefs value. Reading it every time is inefficient.
double dBr = gPrefs->Read(wxT("/GUI/EnvdBRange"), ENV_DB_RANGE);
// Member variables hold state that will be needed in dragging.
mButton = event.GetButton();
mIsDeleting = false;
mContourOffset = false;
// wxLogDebug(wxT("Y:%i Height:%i Offset:%i"), y, height, mContourOffset );
int len = mEnv.Count();
// TODO: extract this into a function FindNearestControlPoint()
// TODO: also fix it so that we can drag the last point on an envelope.
for (int i = 0; i < len; i++) { //search for control point nearest click
if (mEnv[i]->GetT() >= tleft && mEnv[i]->GetT() <= tright) {
int x = int ((mEnv[i]->GetT() + mOffset - h) * pps) + r.x;
int y[4];
int numControlPoints;
// Outer control points
y[0] = GetWaveYPos( mEnv[i]->GetVal(), zoomMin, zoomMax, r.height,
dB, true, dBr, false);
y[1] = GetWaveYPos( -mEnv[i]->GetVal(), zoomMin, zoomMax, r.height,
dB, true, dBr, false);
// Inner control points(contour)
y[2] = GetWaveYPos( mEnv[i]->GetVal(), zoomMin, zoomMax, r.height,
dB, false, dBr, false);
y[3] = GetWaveYPos( -mEnv[i]->GetVal()-.00000001, zoomMin, zoomMax,
r.height, dB, false, dBr, false);
numControlPoints = 4;
if (y[2] > y[3])
numControlPoints = 2;
if (!mMirror)
numControlPoints = 1;
for(int j=0; j<numControlPoints; j++){
int d = (int)(sqrt((double)(SQR(x-event.m_x) + SQR(y[j]-(event.m_y-r.y)))) + 0.5);
if (d < bestDist) {
bestNum = i;
bestDist = d;
mContourOffset = (bool)(j > 1);
}
}
}
}
if (bestNum >= 0) {
mDragPoint = bestNum;
}
else {
// TODO: Extract this into a function CreateNewPoint
double when = h + (event.m_x - r.x) / pps - mOffset;
// if (when <= 0 || when >= mTrackLen)
// return false;
double v = GetValueAtX( event.m_x, r, h, pps );
int ct = GetWaveYPos( v, zoomMin, zoomMax, r.height, dB,
false, dBr, false) ;
int cb = GetWaveYPos( -v-.000000001, zoomMin, zoomMax, r.height, dB,
false, dBr, false) ;
if( ct <= cb || !mMirror ){
int t = GetWaveYPos( v, zoomMin, zoomMax, r.height, dB,
true, dBr, false) ;
int b = GetWaveYPos( -v, zoomMin, zoomMax, r.height, dB,
true, dBr, false) ;
ct = (t + ct) / 2;
cb = (b + cb) / 2;
if(mMirror &&
(event.m_y - r.y) > ct &&
((event.m_y - r.y) < cb))
mContourOffset = true;
else
mContourOffset = false;
}
double newVal = ValueOfPixel(clip_y, r.height, upper, dB,
zoomMin, zoomMax);
mDragPoint = Insert(when, newVal);
mDirty = true;
}
mUpper = upper;
mInitialWhen = mEnv[mDragPoint]->GetT();
mInitialVal = mEnv[mDragPoint]->GetVal();
mInitialX = event.m_x;
mInitialY = event.m_y+mContourOffset;
return true;
}
////////////////
// Mouse events
void VideoSlider::OnMouse(wxMouseEvent &event) {
// Coordinates
int x = event.GetX();
int y = event.GetY();
bool shift = event.m_shiftDown;
// Left click
if (event.ButtonIsDown(wxMOUSE_BTN_LEFT)) {
// Check if it's OK to drag
bool canDrag = wxWindow::FindFocus() == this;
if (!canDrag) {
int tolerance = 4;
int curX = GetXAtValue(GetValue());
if (x-curX < -tolerance || x-curX > tolerance) canDrag = true;
}
// Drag
if (canDrag) {
// Shift click to snap to keyframe
if (shift && Display) {
wxArrayInt KeyFrames = Display->GetKeyFrames();
int keys = KeyFrames.Count();
int clickedFrame = GetValueAtX(x);
int closest = 0;
int cur;
// Find closest
for (int i=0;i<keys;i++) {
cur = KeyFrames[i];
if (abs(cur-clickedFrame) < abs(closest-clickedFrame)) {
closest = cur;
}
}
// Jump to frame
if (closest == GetValue()) return;
SetValue(closest);
}
// Normal click
else {
int go = GetValueAtX(x);
if (go == GetValue()) return;
SetValue(go);
}
Refresh(false);
// Playing?
if (Display->IsPlaying) {
Display->Stop();
UpdateVideo();
Display->Play();
}
else UpdateVideo();
}
// Get focus
SetFocus();
}
// Right/middle click
if (event.ButtonDown(wxMOUSE_BTN_RIGHT) || event.ButtonDown(wxMOUSE_BTN_MIDDLE)) {
SetFocus();
}
// Something else
else if (!Display->IsPlaying) event.Skip();
}
