SliderView::SliderView() : impl(std::make_shared<SliderViewImpl>())
{
impl->slider = this;
impl->track = std::make_shared<View>();
impl->thumb = std::make_shared<View>();
add_subview(impl->track);
add_subview(impl->thumb);
slots.connect(sig_pointer_press(), impl.get(), &SliderViewImpl::on_pointer_track_press);
slots.connect(sig_pointer_release(), impl.get(), &SliderViewImpl::on_pointer_track_release);
slots.connect(impl->thumb->sig_pointer_press(), impl.get(), &SliderViewImpl::on_pointer_thumb_press);
slots.connect(impl->thumb->sig_pointer_release(), impl.get(), &SliderViewImpl::on_pointer_thumb_release);
slots.connect(impl->thumb->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_hot = true; impl->update_state(); });
slots.connect(impl->thumb->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_hot = false; impl->update_state(); });
slots.connect(impl->thumb->sig_pointer_move(), impl.get(), &SliderViewImpl::on_pointer_move);
slots.connect(sig_focus_gained(), impl.get(), &SliderViewImpl::on_focus_gained);
slots.connect(sig_focus_lost(), impl.get(), &SliderViewImpl::on_focus_lost);
slots.connect(sig_activated(), impl.get(), &SliderViewImpl::on_activated);
slots.connect(sig_activated(), impl.get(), &SliderViewImpl::on_deactivated);
impl->scroll_timer.func_expired() = clan::bind_member(impl.get(), &SliderViewImpl::scroll_timer_expired);
set_vertical();
}
// Constructor to set the parameters for finding aligned and ragged tabs.
// Vertical_x and vertical_y are the current estimates of the true vertical
// direction (up) in the image. Height is the height of the starter blob.
// v_gap_multiple is the multiple of height that will be used as a limit
// on vertical gap before giving up and calling the line ended.
// resolution is the original image resolution, and align0 indicates the
// type of tab stop to be found.
AlignedBlobParams::AlignedBlobParams(int vertical_x, int vertical_y,
int height, int v_gap_multiple,
int resolution, TabAlignment align0)
: right_tab(align0 == TA_RIGHT_RAGGED || align0 == TA_RIGHT_ALIGNED),
ragged(align0 == TA_LEFT_RAGGED || align0 == TA_RIGHT_RAGGED),
alignment(align0),
confirmed_type(TT_CONFIRMED),
min_length(0) {
// Set the tolerances according to the type of line sought.
// For tab search, these are based on the image resolution for most, or
// the height of the starting blob for the maximum vertical gap.
max_v_gap = height * v_gap_multiple;
if (ragged) {
// In the case of a ragged edge, we are much more generous with the
// inside alignment fraction, but also require a much bigger gutter.
gutter_fraction = kRaggedGapFraction;
if (alignment == TA_RIGHT_RAGGED) {
l_align_tolerance = static_cast<int>(resolution * kRaggedFraction + 0.5);
r_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
} else {
l_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
r_align_tolerance = static_cast<int>(resolution * kRaggedFraction + 0.5);
}
min_points = kMinRaggedTabs;
} else {
gutter_fraction = kAlignedGapFraction;
l_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
r_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
min_points = kMinAlignedTabs;
}
min_gutter = static_cast<int>(height * gutter_fraction + 0.5);
// Fit the vertical vector into an ICOORD, which is 16 bit.
set_vertical(vertical_x, vertical_y);
}
// Constructor to set the parameters for finding vertical lines.
// Vertical_x and vertical_y are the current estimates of the true vertical
// direction (up) in the image. Width is the width of the starter blob.
AlignedBlobParams::AlignedBlobParams(int vertical_x, int vertical_y,
int width)
: gutter_fraction(0.0),
right_tab(false),
ragged(false),
alignment(TA_SEPARATOR),
confirmed_type(TT_VLINE),
max_v_gap(kVLineSearchSize),
min_gutter(kVLineGutter),
min_points(1),
min_length(kVLineMinLength) {
// Compute threshold for left and right alignment.
l_align_tolerance = std::max(kVLineAlignment, width);
r_align_tolerance = std::max(kVLineAlignment, width);
// Fit the vertical vector into an ICOORD, which is 16 bit.
set_vertical(vertical_x, vertical_y);
}
ScrollBarView::ScrollBarView(bool render_button_arrows) : impl(std::make_shared<ScrollBarViewImpl>())
{
impl->scrollbar = this;
impl->button_decrement = std::make_shared<ScrollBarButtonView>(render_button_arrows);
impl->button_increment = std::make_shared<ScrollBarButtonView>(render_button_arrows);
impl->track = std::make_shared<View>();
impl->thumb = std::make_shared<View>();
impl->thumb_grip = std::make_shared<View>();
auto spacer1 = std::make_shared<View>();
auto spacer2 = std::make_shared<View>();
add_child(impl->button_decrement);
add_child(impl->track);
add_child(impl->button_increment);
impl->track->add_child(impl->thumb);
impl->thumb->add_child(spacer1);
impl->thumb->add_child(impl->thumb_grip);
impl->thumb->add_child(spacer2);
impl->button_decrement->style()->set("flex: 0 0 auto");
impl->button_increment->style()->set("flex: 0 0 auto");
impl->track->style()->set("flex: 1 1 auto");
impl->thumb->style()->set("position: absolute");
spacer1->style()->set("flex: 1 1 auto");
spacer2->style()->set("flex: 1 1 auto");
impl->button_decrement->style()->set("width: 17px; height: 17px");
impl->button_increment->style()->set("width: 17px; height: 17px");
slots.connect(impl->track->sig_pointer_press(), impl.get(), &ScrollBarViewImpl::on_pointer_track_press);
slots.connect(impl->track->sig_pointer_double_click(), impl.get(), &ScrollBarViewImpl::on_pointer_track_press);
slots.connect(impl->track->sig_pointer_release(), impl.get(), &ScrollBarViewImpl::on_pointer_track_release);
slots.connect(impl->thumb->sig_pointer_press(), impl.get(), &ScrollBarViewImpl::on_pointer_thumb_press);
slots.connect(impl->thumb->sig_pointer_double_click(), impl.get(), &ScrollBarViewImpl::on_pointer_thumb_press);
slots.connect(impl->thumb->sig_pointer_release(), impl.get(), &ScrollBarViewImpl::on_pointer_thumb_release);
slots.connect(impl->button_decrement->sig_pointer_press(), impl.get(), &ScrollBarViewImpl::on_pointer_decrement_press);
slots.connect(impl->button_decrement->sig_pointer_double_click(), impl.get(), &ScrollBarViewImpl::on_pointer_decrement_press);
slots.connect(impl->button_decrement->sig_pointer_release(), impl.get(), &ScrollBarViewImpl::on_pointer_decrement_release);
slots.connect(impl->button_increment->sig_pointer_press(), impl.get(), &ScrollBarViewImpl::on_pointer_increment_press);
slots.connect(impl->button_increment->sig_pointer_double_click(), impl.get(), &ScrollBarViewImpl::on_pointer_increment_press);
slots.connect(impl->button_increment->sig_pointer_release(), impl.get(), &ScrollBarViewImpl::on_pointer_increment_release);
slots.connect(impl->thumb->sig_pointer_move(), impl.get(), &ScrollBarViewImpl::on_pointer_move);
slots.connect(sig_focus_gained(), impl.get(), &ScrollBarViewImpl::on_focus_gained);
slots.connect(sig_focus_lost(), impl.get(), &ScrollBarViewImpl::on_focus_lost);
slots.connect(sig_activated(), impl.get(), &ScrollBarViewImpl::on_activated);
slots.connect(sig_activated(), impl.get(), &ScrollBarViewImpl::on_deactivated);
slots.connect(impl->track->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_track_hot = true; impl->update_track_state(); });
slots.connect(impl->track->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_track_hot = false; impl->update_track_state(); });
slots.connect(impl->thumb->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_thumb_hot = true; impl->update_thumb_state(); });
slots.connect(impl->thumb->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_thumb_hot = false; impl->update_thumb_state(); });
slots.connect(impl->thumb_grip->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_thumb_hot = true; impl->update_thumb_state(); });
slots.connect(impl->thumb_grip->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_thumb_hot = false; impl->update_thumb_state(); });
slots.connect(spacer1->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_thumb_hot = true; impl->update_thumb_state(); });
slots.connect(spacer1->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_thumb_hot = false; impl->update_thumb_state(); });
slots.connect(spacer2->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_thumb_hot = true; impl->update_thumb_state(); });
slots.connect(spacer2->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_thumb_hot = false; impl->update_thumb_state(); });
slots.connect(impl->button_decrement->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_decrement_hot = true; impl->update_decrement_state(); });
slots.connect(impl->button_decrement->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_decrement_hot = false; impl->update_decrement_state(); });
slots.connect(impl->button_increment->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_increment_hot = true; impl->update_increment_state(); });
slots.connect(impl->button_increment->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_increment_hot = false; impl->update_increment_state(); });
impl->scroll_timer.func_expired() = clan::bind_member(impl.get(), &ScrollBarViewImpl::scroll_timer_expired);
set_vertical();
}
