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oak-editor/ui/keyframeview.cpp
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#include "keyframeview.h"
#include "project/effect.h"
#include "ui/collapsiblewidget.h"
#include "panels/panels.h"
#include "panels/effectcontrols.h"
#include "project/clip.h"
#include "panels/timeline.h"
#include "ui/timelineheader.h"
#include "project/undo.h"
#include "panels/viewer.h"
#include "ui/viewerwidget.h"
#include "project/sequence.h"
#include "ui_effectcontrols.h"
#include <QLabel>
#include <QMouseEvent>
#include <QtMath>
#include <QMenu>
#define KEYFRAME_SIZE 6
#define KEYFRAME_POINT_COUNT 4
long KeyframeView::adjust_row_keyframe(EffectRow* row, long time) {
return time-row->parent_effect->parent_clip->clip_in+(row->parent_effect->parent_clip->timeline_in-visible_in);
}
KeyframeView::KeyframeView(QWidget *parent) :
QWidget(parent),
visible_in(0),
visible_out(0),
mousedown(false),
dragging(false),
keys_selected(false),
select_rect(false),
x_scroll(0),
y_scroll(0)
{
setFocusPolicy(Qt::ClickFocus);
setMouseTracking(true);
setContextMenuPolicy(Qt::CustomContextMenu);
connect(this, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(show_context_menu(const QPoint&)));
}
void KeyframeView::show_context_menu(const QPoint& pos) {
if (selected_rows.size() > 0) {
QMenu menu(this);
QAction* linear = menu.addAction("Linear");
linear->setData(KEYFRAME_TYPE_LINEAR);
QAction* smooth = menu.addAction("Smooth");
smooth->setData(KEYFRAME_TYPE_SMOOTH);
/*QAction* bezier = menu.addAction("Bezier");
bezier->setData(KEYFRAME_TYPE_BEZIER);*/
connect(&menu, SIGNAL(triggered(QAction*)), this, SLOT(menu_set_key_type(QAction*)));
menu.exec(mapToGlobal(pos));
}
}
void KeyframeView::menu_set_key_type(QAction* a) {
ComboAction* ca = new ComboAction();
for (int i=0;i<selected_rows.size();i++) {
ca->append(new SetInt(&selected_rows.at(i)->keyframe_types[selected_keyframes.at(i)], a->data().toInt()));
}
undo_stack.push(ca);
update();
}
void KeyframeView::paintEvent(QPaintEvent*) {
QPainter p(this);
rowY.clear();
rows.clear();
if (panel_effect_controls->selected_clips.size() > 0) {
visible_in = LONG_MAX;
visible_out = 0;
for (int j=0;j<panel_effect_controls->selected_clips.size();j++) {
Clip* c = sequence->clips.at(panel_effect_controls->selected_clips.at(j));
visible_in = qMin(visible_in, c->timeline_in);
visible_out = qMax(visible_out, c->timeline_out);
}
for (int j=0;j<panel_effect_controls->selected_clips.size();j++) {
Clip* c = sequence->clips.at(panel_effect_controls->selected_clips.at(j));
for (int i=0;i<c->effects.size();i++) {
Effect* e = c->effects.at(i);
if (e->container->is_expanded()) {
for (int j=0;j<e->row_count();j++) {
EffectRow* row = e->row(j);
QLabel* label = row->label;
QWidget* contents = e->container->contents;
int keyframe_y = label->y() + (label->height()>>1) + mapFrom(panel_effect_controls, contents->mapTo(panel_effect_controls, contents->pos())).y() - e->container->title_bar->height()/* - y_scroll*/;
for (int k=0;k<row->keyframe_times.size();k++) {
bool keyframe_selected = keyframeIsSelected(row, k);
long keyframe_frame = adjust_row_keyframe(row, row->keyframe_times.at(k));
if (dragging && keyframe_selected) keyframe_frame += frame_diff;
draw_keyframe(p, row->keyframe_types.at(k), getScreenPointFromFrame(panel_effect_controls->zoom, keyframe_frame) - x_scroll, keyframe_y, keyframe_selected);
}
rows.append(row);
rowY.append(keyframe_y);
}
}
}
}
int max_width = getScreenPointFromFrame(panel_effect_controls->zoom, visible_out - visible_in);
if (max_width < width()) {
p.fillRect(QRect(max_width, 0, width(), height()), QColor(0, 0, 0, 64));
}
panel_effect_controls->ui->horizontalScrollBar->setMaximum(qMax(max_width - width(), 0));
header->set_visible_in(visible_in);
int playhead_x = getScreenPointFromFrame(panel_effect_controls->zoom, sequence->playhead-visible_in) - x_scroll;
if (dragging && panel_timeline->snapped) {
p.setPen(Qt::white);
} else {
p.setPen(Qt::red);
}
p.drawLine(playhead_x, 0, playhead_x, height());
}
if (select_rect) {
draw_selection_rectangle(p, QRect(rect_select_x, rect_select_y, rect_select_w, rect_select_h));
}
/*if (mouseover && mouseover_row < rowY.size()) {
draw_keyframe(p, getScreenPointFromFrame(panel_effect_controls->zoom, mouseover_frame - visible_in), rowY.at(mouseover_row), true);
}*/
}
bool KeyframeView::keyframeIsSelected(EffectRow *row, int keyframe) {
for (int i=0;i<selected_rows.size();i++) {
if (selected_rows.at(i) == row && selected_keyframes.at(i) == keyframe) {
return true;
}
}
return false;
}
void KeyframeView::delete_selected_keyframes() {
KeyframeDelete* kd = new KeyframeDelete();
bool del = false;
for (int i=0;i<selected_keyframes.size();i++) {
selected_rows.at(i)->delete_keyframe(kd, selected_keyframes.at(i));
del = true;
}
if (del) {
undo_stack.push(kd);
selected_keyframes.clear();
selected_rows.clear();
update();
panel_sequence_viewer->viewer_widget->update();
} else {
delete kd;
}
}
void KeyframeView::set_x_scroll(int s) {
x_scroll = s;
update();
}
void KeyframeView::set_y_scroll(int s) {
y_scroll = s;
update();
}
void KeyframeView::draw_keyframe(QPainter &p, int type, int x, int y, bool darker) {
int color = (darker) ? 100 : 160;
p.setPen(QColor(0, 0, 0));
p.setBrush(QColor(color, color, color));
switch (type) {
case KEYFRAME_TYPE_LINEAR:
{
QPoint points[KEYFRAME_POINT_COUNT] = {QPoint(x-KEYFRAME_SIZE, y), QPoint(x, y-KEYFRAME_SIZE), QPoint(x+KEYFRAME_SIZE, y), QPoint(x, y+KEYFRAME_SIZE)};
p.drawPolygon(points, KEYFRAME_POINT_COUNT);
}
break;
case KEYFRAME_TYPE_SMOOTH:
p.drawEllipse(QPoint(x, y), KEYFRAME_SIZE, KEYFRAME_SIZE);
break;
}
}
void KeyframeView::resize_move(double d) {
header->update_zoom(header->get_zoom()*d);
}
void KeyframeView::mousePressEvent(QMouseEvent *event) {
int row_index = -1;
int keyframe_index = -1;
long frame_diff = 0;
int mouse_x = event->x() + x_scroll;
int mouse_y = event->y();
long frame_min = getFrameFromScreenPoint(panel_effect_controls->zoom, mouse_x-KEYFRAME_SIZE);
drag_frame_start = getFrameFromScreenPoint(panel_effect_controls->zoom, mouse_x);
long frame_max = getFrameFromScreenPoint(panel_effect_controls->zoom, mouse_x+KEYFRAME_SIZE);
for (int i=0;i<rowY.size();i++) {
if (mouse_y > rowY.at(i)-KEYFRAME_SIZE-KEYFRAME_SIZE && mouse_y < rowY.at(i)+KEYFRAME_SIZE+KEYFRAME_SIZE) {
EffectRow* row = rows.at(i);
for (int j=0;j<row->keyframe_times.size();j++) {
long eval_keyframe_time = row->keyframe_times.at(j)-row->parent_effect->parent_clip->clip_in+(row->parent_effect->parent_clip->timeline_in-visible_in);
if (eval_keyframe_time >= frame_min && eval_keyframe_time <= frame_max) {
long eval_frame_diff = qAbs(eval_keyframe_time - drag_frame_start);
if (keyframe_index == -1 || eval_frame_diff < frame_diff) {
row_index = i;
keyframe_index = j;
frame_diff = eval_frame_diff;
}
}
}
break;
}
}
bool already_selected = false;
keys_selected = false;
if (keyframe_index > -1) already_selected = keyframeIsSelected(rows.at(row_index), keyframe_index);
if (!already_selected) {
if (!(event->modifiers() & Qt::ShiftModifier)) {
selected_rows.clear();
selected_keyframes.clear();
}
if (keyframe_index > -1) {
selected_rows.append(rows.at(row_index));
selected_keyframes.append(keyframe_index);
}
}
if (selected_rows.size() > 0) {
keys_selected = true;
} else {
rect_select_x = event->x();
rect_select_y = event->y();
}
update();
if (event->button() == Qt::LeftButton) {
mousedown = true;
}
}
void KeyframeView::mouseMoveEvent(QMouseEvent* event) {
if (mousedown) {
int mouse_x = event->x() + x_scroll;
if (keys_selected) {
// move keyframes
frame_diff = getFrameFromScreenPoint(panel_effect_controls->zoom, mouse_x) - drag_frame_start;
// snapping to playhead
if (panel_timeline->snapping) {
for (int i=0;i<selected_keyframes.size();i++) {
EffectRow* row = selected_rows.at(i);
Clip* c = row->parent_effect->parent_clip;
long key_time = row->keyframe_times.at(selected_keyframes.at(i)) + frame_diff - c->clip_in + c->timeline_in;
long key_eval = key_time;
if (panel_timeline->snap_to_point(sequence->playhead, &key_eval)) {
frame_diff += (key_eval - key_time);
break;
}
}
}
// validate frame_diff (make sure no keyframes overlap each other)
for (int i=0;i<selected_keyframes.size();i++) {
EffectRow* row = selected_rows.at(i);
long eval_key = row->keyframe_times.at(selected_keyframes.at(i));
for (int j=0;j<row->keyframe_times.size();j++) {
while (!keyframeIsSelected(row, j) && row->keyframe_times.at(j) == eval_key + frame_diff) {
if (last_frame_diff > frame_diff) {
frame_diff++;
panel_timeline->snapped = false;
} else {
frame_diff--;
panel_timeline->snapped = false;
}
}
}
}
last_frame_diff = frame_diff;
dragging = true;
} else {
// do a rect select
rect_select_w = event->x() - rect_select_x;
rect_select_h = event->y() - rect_select_y;
int min_row = qMin(rect_select_y, event->y())-KEYFRAME_SIZE;
int max_row = qMax(rect_select_y, event->y())+KEYFRAME_SIZE;
long frame_start = getFrameFromScreenPoint(panel_effect_controls->zoom, rect_select_x+x_scroll);
long frame_end = getFrameFromScreenPoint(panel_effect_controls->zoom, mouse_x);
long min_frame = qMin(frame_start, frame_end)-KEYFRAME_SIZE;
long max_frame = qMax(frame_start, frame_end)+KEYFRAME_SIZE;
for (int i=0;i<rowY.size();i++) {
if (rowY.at(i) >= min_row && rowY.at(i) <= max_row) {
EffectRow* row = rows.at(i);
for (int j=0;j<row->keyframe_times.size();j++) {
long keyframe_frame = adjust_row_keyframe(row, row->keyframe_times.at(j));
if (!keyframeIsSelected(row, j) && keyframe_frame >= min_frame && keyframe_frame <= max_frame) {
selected_rows.append(rows.at(i));
selected_keyframes.append(j);
}
}
}
}
select_rect = true;
}
update();
}
}
void KeyframeView::mouseReleaseEvent(QMouseEvent*) {
if (dragging && frame_diff != 0) {
KeyframeMove* ka = new KeyframeMove();
ka->movement = frame_diff;
ka->keyframes = selected_keyframes;
ka->rows = selected_rows;
undo_stack.push(ka);
}
select_rect = false;
dragging = false;
mousedown = false;
panel_timeline->snapped = false;
update();
}
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