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livetrax/gtk2_ardour/triggerbox_ui.cc
Paul Davis 182a24751b get standalone MidiView to display notes 
This also removes an unused TriggerBoxWidget from each regular
MixerStrip.
2024-10-17 07:44:29 -06:00

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/*
* Copyright (C) 2021 Paul Davis <paul@linuxaudiosystems.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <vector>
#include "gtkmm/sizegroup.h"
#include <gtkmm/filechooserdialog.h>
#include <gtkmm/menu.h>
#include <gtkmm/menuitem.h>
#include <gtkmm/stock.h>
#include "pbd/compose.h"
#include "pbd/convert.h"
#include "pbd/unwind.h"
#include "pbd/basename.h"
#include "pbd/file_utils.h"
#include "pbd/pathexpand.h"
#include "pbd/search_path.h"
#include "ardour/directory_names.h"
#include "ardour/filesystem_paths.h"
#include "ardour/region.h"
#include "ardour/region_factory.h"
#include "ardour/triggerbox.h"
#include "canvas/polygon.h"
#include "canvas/text.h"
#include "gtkmm2ext/colors.h"
#include "gtkmm2ext/utils.h"
#include "ardour_ui.h"
#include "gui_thread.h"
#include "keyboard.h"
#include "public_editor.h"
#include "region_view.h"
#include "selection.h"
#include "slot_properties_box.h"
#include "timers.h"
#include "trigger_ui.h"
#include "triggerbox_ui.h"
#include "ui_config.h"
#include "utils.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace ArdourCanvas;
using namespace Gtkmm2ext;
using namespace PBD;
TriggerEntry::TriggerEntry (Item* item, TriggerStrip& s, TriggerReference tr)
: ArdourCanvas::Rectangle (item)
, _strip (s)
, _grabbed (false)
, _drag_active (false)
{
set_layout_sensitive (true); // why???
name = string_compose ("trigger %1", tr.slot);
set_outline (false);
play_button = new ArdourCanvas::Rectangle (this);
play_button->set_outline (true);
play_button->set_fill (true);
play_button->name = string_compose ("playbutton %1", tr.slot);
play_button->show ();
follow_button = new ArdourCanvas::Rectangle (this);
follow_button->set_outline (false);
follow_button->set_fill (true);
follow_button->name = ("slot_selector_button");
follow_button->set_tooltip (_("Click to select Follow-Actions for this clip"));
follow_button->show ();
name_button = new ArdourCanvas::Rectangle (this);
name_button->set_outline (true);
name_button->set_fill (true);
name_button->name = ("slot_selector_button");
name_button->show ();
name_text = new Text (name_button);
name_text->set_ignore_events (false);
name_text->set_tooltip (_("Click to select this clip and edit its properties\nRight-Click for context menu"));
name_text->show ();
/* this will trigger a call to on_trigger_changed() */
set_trigger (tr);
/* DnD Source */
GtkCanvas* gtkcanvas = static_cast<GtkCanvas*> (canvas ());
assert (gtkcanvas);
gtkcanvas->signal_drag_begin ().connect (sigc::mem_fun (*this, &TriggerEntry::drag_begin));
gtkcanvas->signal_drag_end ().connect (sigc::mem_fun (*this, &TriggerEntry::drag_end));
gtkcanvas->signal_drag_data_get ().connect (sigc::mem_fun (*this, &TriggerEntry::drag_data_get));
/* event handling */
play_button->Event.connect (sigc::mem_fun (*this, &TriggerEntry::play_button_event));
name_button->Event.connect (sigc::mem_fun (*this, &TriggerEntry::name_button_event));
follow_button->Event.connect (sigc::mem_fun (*this, &TriggerEntry::follow_button_event));
Event.connect (sigc::mem_fun (*this, &TriggerEntry::event));
/* watch for change in theme */
UIConfiguration::instance ().ParameterChanged.connect (sigc::mem_fun (*this, &TriggerEntry::ui_parameter_changed));
set_widget_colors ();
/* owner color changes (?) */
dynamic_cast<Stripable*> (tref.box->owner ())->presentation_info ().Change.connect (_owner_prop_connection, MISSING_INVALIDATOR, boost::bind (&TriggerEntry::owner_prop_change, this, _1), gui_context ());
selection_change ();
}
TriggerEntry::~TriggerEntry ()
{
}
void
TriggerEntry::owner_prop_change (PropertyChange const& pc)
{
if (pc.contains (Properties::color)) {
owner_color_changed ();
}
}
void
TriggerEntry::owner_color_changed ()
{
// TODO
}
void
TriggerEntry::selection_change ()
{
set_widget_colors ();
}
void
TriggerEntry::_size_allocate (ArdourCanvas::Rect const& alloc)
{
Rectangle::_size_allocate (alloc);
const Distance width = _rect.width ();
const Distance height = _rect.height ();
play_button->set (ArdourCanvas::Rect (0, 0, height, height));
name_button->set (ArdourCanvas::Rect (height, 0, width - height, height));
follow_button->set (ArdourCanvas::Rect (width - height, 0, width, height));
const double scale = UIConfiguration::instance ().get_ui_scale ();
_poly_margin = 2. * scale;
_poly_size = height - 2 * _poly_margin;
float font_margin = 2. * scale;
name_text->size_allocate (ArdourCanvas::Rect (0, 0, width, height - font_margin * 2));
float tleft = height; // make room for the play button
name_text->set_position (Duple (tleft + _poly_margin, font_margin)); // @paul why do we need tleft here? isn't name_text a child of name_button?
name_text->clamp_width (width - height * 2 - _poly_margin * 3);
/* font scale may have changed. uiconfig 'embeds' the ui-scale in the font */
name_text->set_font_description (UIConfiguration::instance ().get_NormalFont ());
}
void
TriggerEntry::draw_follow_icon (Cairo::RefPtr<Cairo::Context> context, FollowAction const & icon, float size, float scale) const
{
uint32_t fg_color = UIConfiguration::instance ().color ("neutral:midground");
/* in the case where there is a random follow-action, just put a "?" */
if (trigger ()->follow_action_probability () > 0) {
Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
layout->set_text ("?");
int tw, th;
layout->get_pixel_size (tw, th);
context->move_to (size / 2, size / 2);
context->rel_move_to (-tw / 2, -th / 2);
layout->show_in_cairo_context (context);
return;
}
set_source_rgba (context, fg_color);
context->set_line_width (1 * scale);
switch (icon.type) {
case FollowAction::Stop:
context->rectangle (6 * scale, 6 * scale, size - 12 * scale, size - 12 * scale);
context->stroke ();
break;
case FollowAction::Again:
context->arc (size / 2, size / 2, size * 0.20, 60. * (M_PI / 180.0), 2 * M_PI);
context->stroke ();
context->arc (size / 2 + size * 0.2, size / 2, 1.5 * scale, 0, 2 * M_PI); // arrow head
context->fill ();
break;
case FollowAction::ForwardTrigger:
context->move_to (size / 2, 3 * scale);
context->line_to (size / 2, size - 5 * scale);
context->stroke ();
context->arc (size / 2, size - 5 * scale, 2 * scale, 0, 2 * M_PI); // arrow head
context->fill ();
break;
case FollowAction::ReverseTrigger:
context->move_to (size / 2, 5 * scale);
context->line_to (size / 2, size - 3 * scale);
context->stroke ();
context->arc (size / 2, 5 * scale, 2 * scale, 0, 2 * M_PI); // arrow head
context->fill ();
break;
case FollowAction::JumpTrigger: {
if ( icon.targets.count() == 1 ) { //Jump to a specific row; just draw the letter of the row we are jumping to
int cue_idx = -1;
for (int i = 0; i < TriggerBox::default_triggers_per_box; i++) {
if (icon.targets.test(i)) {
cue_idx = i;
break;
}
}
Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
layout->set_text (cue_marker_name (cue_idx));
int tw, th;
layout->get_pixel_size (tw, th);
context->move_to (size / 2, size / 2);
context->rel_move_to (-tw / 2, -th / 2);
layout->show_in_cairo_context (context);
} else { // Multi-Jump: draw a star-like icon
context->set_line_width (1.5 * scale);
set_source_rgba (context, HSV (UIConfiguration::instance ().color ("neutral:midground")).lighter (0.25).color ()); // needs to be brighter to maintain balance
for (int i = 0; i < 6; i++) {
Cairo::Matrix m = context->get_matrix ();
context->translate (size / 2, size / 2);
context->rotate (i * M_PI / 3);
context->move_to (0, 2 * scale);
context->line_to (0, (size / 2) - 4 * scale);
context->stroke ();
context->set_matrix (m);
}
}
} break;
case FollowAction::None:
default:
break;
}
}
void
TriggerEntry::draw_launch_icon (Cairo::RefPtr<Cairo::Context> context, float sz, float scale) const
{
context->set_line_width (1 * scale);
float margin = 4 * scale;
float size = sz - 2 * margin;
bool active = trigger ()->active ();
if (!trigger ()->region ()) {
/* no content in this slot, it is only a Stop button */
context->move_to (margin, margin);
context->rel_line_to (size, 0);
context->rel_line_to (0, size);
context->rel_line_to (-size, 0);
context->rel_line_to (0, -size);
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:midground"));
context->stroke ();
return;
}
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:midground"));
switch (trigger ()->launch_style ()) {
case Trigger::Toggle:
if (active) {
/* special case: now it's a square Stop button */
context->move_to (margin, margin);
context->rel_line_to (size, 0);
context->rel_line_to (0, size);
context->rel_line_to (-size, 0);
context->line_to (margin, margin);
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:foreground"));
context->fill ();
context->stroke ();
} else {
/* boxy arrow */
context->move_to (margin, margin);
context->rel_line_to (0, size);
context->rel_line_to (size * 1 / 3, 0);
context->rel_line_to (size * 2 / 3, -size / 2);
context->rel_line_to (-size * 2 / 3, -size / 2);
context->line_to (margin, margin);
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:midground"));
context->stroke ();
}
break;
case Trigger::OneShot:
context->move_to (margin, margin);
context->rel_line_to (0, size);
context->rel_line_to (size, -size / 2);
context->line_to (margin, margin);
if (active) {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:foreground"));
context->fill ();
context->stroke ();
} else {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:midground"));
context->stroke ();
}
break;
case Trigger::ReTrigger:
/* line + boxy arrow + line */
if (active) {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:foreground"));
} else {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:midground"));
}
/* vertical line at left */
context->set_line_width (2 * scale);
context->move_to (margin + 1 * scale, margin);
context->line_to (margin + 1 * scale, margin + size);
context->stroke ();
/* small triangle */
context->set_line_width (1 * scale);
context->move_to (margin + scale * 4, margin + 2 * scale);
context->line_to (margin + size, margin + size / 2);
context->line_to (margin + scale * 4, margin + size - 2 * scale);
context->line_to (margin + scale * 4, margin + 2 * scale);
if (active) {
context->fill ();
} else {
context->stroke ();
}
break;
case Trigger::Gate:
/* diamond shape */
context->move_to (margin + size / 2, margin);
context->rel_line_to (size / 2, size / 2);
context->rel_line_to (-size / 2, size / 2);
context->rel_line_to (-size / 2, -size / 2);
context->rel_line_to (size / 2, -size / 2);
if (active) {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:foreground"));
context->fill ();
context->stroke ();
} else {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:midground"));
context->stroke ();
}
break;
case Trigger::Repeat:
/* 'stutter' shape */
context->set_line_width (1 * scale);
context->move_to (margin, margin);
context->rel_line_to (0, size);
context->move_to (margin + scale * 3, margin + scale * 2);
context->rel_line_to (0, size - scale * 4);
context->move_to (margin + scale * 6, margin + scale * 3);
context->rel_line_to (0, size - scale * 6);
if (active) {
set_source_rgba (context, UIConfiguration::instance ().color ("neutral:foregroundest"));
} else {
/* stutter shape needs to be brighter to maintain balance */
set_source_rgba (context, HSV (UIConfiguration::instance ().color ("neutral:midground")).lighter (0.25).color ());
}
context->stroke ();
break;
default:
break;
}
context->set_line_width (1);
}
void
TriggerEntry::render (ArdourCanvas::Rect const& area, Cairo::RefPtr<Cairo::Context> context) const
{
Rectangle::render (area, context);
/* Note that item_to_window() already takes _position into account (as
* part of item_to_canvas()
*/
ArdourCanvas::Rect self (item_to_window (_rect));
const ArdourCanvas::Rect draw = self.intersection (area);
if (!draw) {
return;
}
float width = _rect.width ();
float height = _rect.height ();
const double scale = UIConfiguration::instance ().get_ui_scale ();
if (_fill && !_transparent) {
setup_fill_context (context);
context->rectangle (draw.x0, draw.y0, draw.width (), draw.height ());
context->fill ();
}
render_children (area, context);
if (trigger ()->cue_isolated ()) {
/* left shadow */
context->set_identity_matrix ();
context->translate (self.x0, self.y0 - 0.5);
Cairo::RefPtr<Cairo::LinearGradient> l_shadow = Cairo::LinearGradient::create (0, 0, scale * 12, 0);
l_shadow->add_color_stop_rgba (0.0, 0.0, 0.0, 0.0, 0.8);
l_shadow->add_color_stop_rgba (1.0, 0.0, 0.0, 0.0, 0.0);
context->set_source (l_shadow);
context->rectangle (0, 0, scale * 12, height);
context->fill ();
context->set_identity_matrix ();
}
if (false /*tref.slot == 1*/) {
/* drop-shadow at top */
Cairo::RefPtr<Cairo::LinearGradient> drop_shadow_pattern = Cairo::LinearGradient::create (0.0, 0.0, 0.0, 6 * scale);
drop_shadow_pattern->add_color_stop_rgba (0, 0, 0, 0, 0.7);
drop_shadow_pattern->add_color_stop_rgba (1, 0, 0, 0, 0.0);
context->set_source (drop_shadow_pattern);
context->rectangle (0, 0, width, 6 * scale);
context->fill ();
}
/* launch icon */
{
context->set_identity_matrix ();
context->translate (self.x0, self.y0 - 0.5);
context->translate (0, 0); // left side of the widget
draw_launch_icon (context, height, scale);
context->set_identity_matrix ();
}
/* follow-action icon */
if (trigger ()->region () && trigger ()->will_follow ()) {
context->set_identity_matrix ();
context->translate (self.x0, self.y0 - 0.5);
context->translate (width - height, 0); // right side of the widget
draw_follow_icon (context, trigger ()->follow_action0 (), height, scale);
context->set_identity_matrix ();
}
}
void
TriggerEntry::on_trigger_changed (PropertyChange const& change)
{
if (change.contains (ARDOUR::Properties::name)) {
if (trigger ()->region ()) {
name_text->set (short_version (trigger ()->name (), 16));
play_button->set_tooltip (_("Launch this clip\nRight-click to select Launch Options for this clip"));
} else {
name_text->set ("");
play_button->set_tooltip (_("Stop other clips on this track.\nRight-click to select Launch Options for this clip"));
}
}
set_widget_colors (); //depending on the state, this might change a color and queue a redraw
PropertyChange interesting_stuff;
interesting_stuff.add (ARDOUR::Properties::name);
interesting_stuff.add (ARDOUR::Properties::color);
interesting_stuff.add (ARDOUR::Properties::launch_style);
interesting_stuff.add (ARDOUR::Properties::follow_action0);
interesting_stuff.add (ARDOUR::Properties::follow_action1);
interesting_stuff.add (ARDOUR::Properties::follow_action_probability);
interesting_stuff.add (ARDOUR::Properties::follow_count);
interesting_stuff.add (ARDOUR::Properties::cue_isolated);
interesting_stuff.add (ARDOUR::Properties::running);
if (change.contains (interesting_stuff)) {
redraw ();
}
}
void
TriggerEntry::set_widget_colors (TriggerEntry::EnteredState es)
{
color_t bg_col = UIConfiguration::instance ().color ("theme:bg");
//alternating darker bands
if ((tref.slot / 2) % 2 == 0) {
bg_col = HSV (bg_col).darker (0.25).color ();
}
set_fill_color (bg_col);
//child widgets highlight when entered
color_t hilite = HSV (bg_col).lighter (0.15).color ();
play_button->set_fill_color ((es == PlayEntered) ? hilite : bg_col);
play_button->set_outline_color ((es == PlayEntered) ? hilite : bg_col);
name_button->set_fill_color ((es == NameEntered) ? hilite : bg_col);
name_button->set_outline_color ((es == NameEntered) ? hilite : bg_col);
follow_button->set_fill_color ((es == FollowEntered) ? hilite : bg_col);
name_text->set_color (trigger ()->color ());
name_text->set_fill_color (UIConfiguration::instance ().color ("neutral:midground"));
/*preserve selection border*/
if (PublicEditor::instance ().get_selection ().selected (this)) {
name_button->set_outline_color (UIConfiguration::instance ().color ("alert:red"));
}
/*draw a box around 'queued' trigger*/
if (!trigger ()->active () && trigger ()->box ().currently_playing () == trigger ()) {
play_button->set_outline_color (UIConfiguration::instance ().color ("neutral:foreground"));
}
}
void
TriggerEntry::ui_parameter_changed (std::string const& p)
{
if (p == "color-file") {
set_widget_colors ();
}
}
bool
TriggerEntry::name_button_event (GdkEvent* ev)
{
switch (ev->type) {
case GDK_ENTER_NOTIFY:
if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
set_widget_colors (NameEntered);
}
break;
case GDK_LEAVE_NOTIFY:
if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
set_widget_colors (NoneEntered);
}
break;
case GDK_BUTTON_PRESS:
break;
case GDK_2BUTTON_PRESS:
#if SELECTION_PROPERTIES_BOX_TODO
edit_trigger ();
#endif
return true;
case GDK_BUTTON_RELEASE:
if (Gtkmm2ext::Keyboard::is_delete_event (&ev->button)) {
clear_trigger ();
return true;
}
switch (ev->button.button) {
case 3:
PublicEditor::instance ().get_selection ().set (this);
context_menu ();
return true;
case 1:
PublicEditor::instance ().get_selection ().set (this);
return true;
default:
break;
}
break;
default:
break;
}
return false;
}
bool
TriggerEntry::play_button_event (GdkEvent* ev)
{
if (!trigger ()->region ()) {
/* empty slot; this is just a stop button */
switch (ev->type) {
case GDK_BUTTON_PRESS:
if (ev->button.button == 1) {
if (Keyboard::modifier_state_equals (ev->button.state, Keyboard::PrimaryModifier)) {
trigger ()->box ().stop_all_immediately ();
} else {
trigger ()->box ().stop_all_quantized ();
}
}
break;
default:
break;
}
}
switch (ev->type) {
case GDK_2BUTTON_PRESS: //need to un-grab in a double-click action
case GDK_BUTTON_PRESS:
switch (ev->button.button) {
case 1:
if (trigger ()->launch_style () == Trigger::Gate ||
trigger ()->launch_style () == Trigger::Repeat) {
trigger ()->bang ();
_grabbed = true;
play_button->grab ();
} else {
trigger ()->bang ();
}
default:
break;
}
break;
case GDK_BUTTON_RELEASE:
switch (ev->button.button) {
case 1:
if (_grabbed) {
trigger ()->unbang ();
play_button->ungrab ();
_grabbed = false;
}
break;
case 3:
launch_context_menu ();
return true;
default:
break;
}
break;
case GDK_ENTER_NOTIFY:
if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
set_widget_colors (PlayEntered);
}
break;
case GDK_LEAVE_NOTIFY:
if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
set_widget_colors (NoneEntered);
}
break;
default:
break;
}
return true;
}
bool
TriggerEntry::follow_button_event (GdkEvent* ev)
{
switch (ev->type) {
case GDK_BUTTON_PRESS:
return true; //wait for release to show the menu
break;
case GDK_BUTTON_RELEASE:
switch (ev->button.button) {
case 1:
case 3:
follow_context_menu (&ev->button);
default:
break;
}
break;
case GDK_ENTER_NOTIFY:
if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
set_widget_colors (FollowEntered);
}
break;
case GDK_LEAVE_NOTIFY:
if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
set_widget_colors (NoneEntered);
}
break;
default:
break;
}
return true;
}
bool
TriggerEntry::event (GdkEvent* ev)
{
if (!trigger ()->region ()) {
return false;
}
switch (ev->type) {
case GDK_2BUTTON_PRESS: //need to un-grab in a double-click action
case GDK_BUTTON_RELEASE:
if(_grabbed) {
ungrab();
_grabbed = false;
if (ev->type == GDK_BUTTON_RELEASE) {
/* Pass event down to child item, as if this item was not grabbed.
* This is needed to select item on release.
*/
name_button->Event (ev);
return true;
}
}
break;
case GDK_BUTTON_PRESS:
if (!_drag_active) {
GdkEventButton* bev = (GdkEventButton*)ev;
if (bev->button == 1) {
_drag_start_x = bev->x;
_drag_start_y = bev->y;
_grabbed = true;
grab();
return true;
} else {
_drag_start_x = -1;
_drag_start_y = -1;
}
}
break;
case GDK_MOTION_NOTIFY:
if (!_drag_active) {
int x, y;
Gdk::ModifierType mask;
GtkCanvas* gtkcanvas = static_cast<GtkCanvas*> (canvas ());
gtkcanvas->get_window ()->get_pointer (x, y, mask);
if (mask & GDK_BUTTON1_MASK) {
if (gtkcanvas->drag_check_threshold (_drag_start_x, _drag_start_y, x, y)) {
_drag_active = true;
gtkcanvas->drag_begin (TriggerBoxUI::dnd_src (), Gdk::ACTION_COPY, 1, ev);
// -> save a reference to the dragged slot, for use in ::drag_begin ::drag_data_get()
return true;
}
}
}
break;
default:
break;
}
return false;
}
void
TriggerEntry::drag_begin (Glib::RefPtr<Gdk::DragContext> const& context)
{
if (!_drag_active) {
/* Since the canvas is shared, all TriggerEntry inside
* the TriggerBox canvas receive this signal
*/
return;
}
//const ArdourCanvas::Rect rect = allocation ();
int width = _rect.width ();
int height = _rect.height ();
GtkCanvas* gtkcanvas = static_cast<GtkCanvas*> (canvas ());
Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (gtkcanvas->get_root_window (), width, height);
{
cairo_t* cr = gdk_cairo_create (Glib::unwrap (pixmap));
Cairo::RefPtr<Cairo::Context> ctx = Cairo::RefPtr<Cairo::Context> (new Cairo::Context (cr, true /* has_reference */));
/* inverse offset, because ::render() translates coordinates itself */
ArdourCanvas::Rect self (item_to_window (_rect));
ctx->translate (-self.x0, -self.y0);
/* save context because ::render() calls set_identity_matrix () */
ctx->save ();
render (self, ctx);
ctx->restore ();
/* draw an outline around the drag object, replace red selection border */
ctx->set_identity_matrix ();
ctx->rectangle (0, 0, width, height);
set_source_rgba (ctx, UIConfiguration::instance ().color ("neutral:foreground"));
ctx->set_line_width (1.5);
ctx->stroke ();
/* ctx leaves scope, cr is destroyed, and pixmap surface is flush()ed */
}
std::shared_ptr<Region> region = trigger ()->region ();
if (region) {
PublicEditor::instance ().pbdid_dragged_dt = region->data_type ();
} else {
PublicEditor::instance ().pbdid_dragged_dt = DataType::NIL;
}
context->set_icon (pixmap->get_colormap (), pixmap, Glib::RefPtr<Gdk::Bitmap> (NULL), width / 2, height / 2);
}
void
TriggerEntry::drag_end (Glib::RefPtr<Gdk::DragContext> const&)
{
if (_drag_active) {
PublicEditor::instance ().pbdid_dragged_dt = DataType::NIL;
}
_drag_active = false;
}
void
TriggerEntry::drag_data_get (Glib::RefPtr<Gdk::DragContext> const&, Gtk::SelectionData& data, guint, guint)
{
if (!_drag_active) {
/* Since the canvas is shared, all TriggerEntry instances
* inside a TriggerBox canvas receive this signal.
*/
return;
}
if (data.get_target () == "x-ardour/region.pbdid") {
std::shared_ptr<Region> region = trigger ()->region ();
if (region) {
data.set (data.get_target (), region->id ().to_s ());
}
}
if (data.get_target () == "x-ardour/trigger.pbdid") {
data.set (data.get_target (), trigger()->id ().to_s ());
}
}
/* ***************************************************** */
Glib::RefPtr<Gtk::TargetList> TriggerBoxUI::_dnd_src;
TriggerBoxUI::TriggerBoxUI (ArdourCanvas::Item* parent, TriggerStrip& s, TriggerBox& tb)
: Rectangle (parent)
, _triggerbox (tb)
, _strip (s)
{
set_layout_sensitive (true); // why???
set_fill_color (UIConfiguration::instance ().color (X_("theme:bg")));
set_fill (true);
build ();
_selection_connection = PublicEditor::instance ().get_selection ().TriggersChanged.connect (sigc::mem_fun (*this, &TriggerBoxUI::selection_changed));
/* DnD */
if (!_dnd_src) {
std::vector<Gtk::TargetEntry> source_table;
source_table.push_back (Gtk::TargetEntry ("x-ardour/trigger.pbdid", Gtk::TARGET_SAME_APP));
source_table.push_back (Gtk::TargetEntry ("x-ardour/region.pbdid", Gtk::TARGET_SAME_APP));
_dnd_src = Gtk::TargetList::create (source_table);
}
std::vector<Gtk::TargetEntry> target_table;
target_table.push_back (Gtk::TargetEntry ("x-ardour/trigger.pbdid", Gtk::TARGET_SAME_APP));
target_table.push_back (Gtk::TargetEntry ("x-ardour/region.pbdid", Gtk::TARGET_SAME_APP));
target_table.push_back (Gtk::TargetEntry ("text/uri-list"));
target_table.push_back (Gtk::TargetEntry ("text/plain"));
target_table.push_back (Gtk::TargetEntry ("application/x-rootwin-drop"));
GtkCanvas* gtkcanvas = static_cast<GtkCanvas*> (canvas ());
assert (gtkcanvas);
gtkcanvas->drag_dest_set (target_table);
gtkcanvas->signal_drag_motion ().connect (sigc::mem_fun (*this, &TriggerBoxUI::drag_motion));
gtkcanvas->signal_drag_leave ().connect (sigc::mem_fun (*this, &TriggerBoxUI::drag_leave));
gtkcanvas->signal_drag_data_received ().connect (sigc::mem_fun (*this, &TriggerBoxUI::drag_data_received));
}
TriggerBoxUI::~TriggerBoxUI ()
{
/* sigc connection's are not scoped (i.e. they do not disconnect the
functor from the signal when they are destroyed).
*/
_selection_connection.disconnect ();
}
void
TriggerBoxUI::selection_changed ()
{
for (auto& slot : _slots) {
slot->selection_change ();
}
}
void
TriggerBoxUI::build ()
{
TriggerPtr t;
uint64_t n = 0;
// clear_items (true);
_slots.clear ();
while (true) {
t = _triggerbox.trigger (n);
if (!t) {
break;
}
TriggerEntry* te = new TriggerEntry (this, _strip, TriggerReference (_triggerbox, n));
_slots.push_back (te);
++n;
}
}
void
TriggerBoxUI::_size_allocate (ArdourCanvas::Rect const& alloc)
{
Rectangle::_size_allocate (alloc);
const float width = alloc.width ();
const float height = alloc.height ();
const float slot_h = height / TriggerBox::default_triggers_per_box; // TODO
float ypos = 0;
for (auto& slot : _slots) {
slot->size_allocate (ArdourCanvas::Rect (0, 0, width, slot_h));
slot->set_position (Duple (0, ypos));
ypos += slot_h;
slot->show ();
}
}
uint64_t
TriggerBoxUI::slot_at_y (int y) const
{
uint64_t n = 0;
for (auto& slot : _slots) {
if (slot->height () < y) {
++n;
y -= slot->height ();
}
}
return n;
}
bool
TriggerBoxUI::drag_motion (Glib::RefPtr<Gdk::DragContext> const& context, int, int y, guint time)
{
bool can_drop = true;
GtkCanvas* gtkcanvas = static_cast<GtkCanvas*> (canvas ());
std::string target = gtkcanvas->drag_dest_find_target (context, gtkcanvas->drag_dest_get_target_list ());
if ((target == "x-ardour/region.pbdid") || (target == "x-ardour/trigger.pbdid")) {
can_drop = PublicEditor::instance ().pbdid_dragged_dt == _triggerbox.data_type ();
}
uint64_t n = slot_at_y (y);
if (n >= _slots.size ()) {
assert (0);
can_drop = false;
}
if (can_drop) {
context->drag_status (Gdk::ACTION_COPY, time);
/* prelight */
GdkEventCrossing ev;
ev.detail = GDK_NOTIFY_ANCESTOR;
for (size_t i = 0; i < _slots.size (); ++i) {
ev.type = (i == n) ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY;
_slots[i]->name_button_event ((GdkEvent*)&ev);
}
return true;
} else {
context->drag_status (Gdk::DragAction (0), time);
return false;
}
}
void
TriggerBoxUI::drag_leave (Glib::RefPtr<Gdk::DragContext> const&, guint)
{
GdkEventCrossing ev;
ev.type = GDK_LEAVE_NOTIFY;
ev.detail = GDK_NOTIFY_ANCESTOR;
for (size_t i = 0; i < _slots.size (); ++i) {
_slots[i]->name_button_event ((GdkEvent*)&ev);
}
}
void
TriggerBoxUI::drag_data_received (Glib::RefPtr<Gdk::DragContext> const& context, int /*x*/, int y, Gtk::SelectionData const& data, guint /*info*/, guint time)
{
uint64_t n = slot_at_y (y);
if (n >= _slots.size ()) {
context->drag_finish (false, false, time);
return;
}
if (data.get_target () == "x-ardour/region.pbdid") {
PBD::ID rid (data.get_data_as_string ());
std::shared_ptr<Region> region = RegionFactory::region_by_id (rid);
if (region) {
_triggerbox.set_from_selection (n, region);
context->drag_finish (true, false, time);
} else {
context->drag_finish (false, false, time);
}
return;
}
if (data.get_target () == "x-ardour/trigger.pbdid") {
PBD::ID tid (data.get_data_as_string ());
std::shared_ptr<Trigger> source = _triggerbox.session().trigger_by_id (tid);
if (source) {
Trigger::UIState *state = new Trigger::UIState();
source->get_ui_state(*state);
std::shared_ptr<Trigger::UIState> state_p (state);
_triggerbox.enqueue_trigger_state_for_region(source->region(), state_p);
_triggerbox.set_from_selection (n, source->region());
context->drag_finish (true, false, time);
} else {
context->drag_finish (false, false, time);
}
return;
}
std::vector<std::string> paths;
if (ARDOUR_UI_UTILS::convert_drop_to_paths (paths, data)) {
for (std::vector<std::string>::iterator s = paths.begin (); s != paths.end (); ++s) {
/* this will do nothing if n is too large */
_triggerbox.set_from_path (n, *s);
#if 1 /* assume drop from sidebar -- TODO use a special data.get_target() ? */
ARDOUR_UI_UTILS::copy_patch_changes (_triggerbox.session().the_auditioner (), _triggerbox.trigger (n));
#endif
++n;
}
}
context->drag_finish (true, false, time);
}
/* ********************************************** */
TriggerBoxWidget::TriggerBoxWidget (TriggerStrip& s, float w, float h)
: FittedCanvasWidget (w, h)
, ui (nullptr)
, _strip (s)
{
set_background_color (UIConfiguration::instance ().color (X_("theme:bg")));
}
void
TriggerBoxWidget::set_triggerbox (TriggerBox* tb)
{
if (ui) {
root ()->remove (ui);
delete ui;
ui = nullptr;
}
if (!tb) {
return;
}
ui = new TriggerBoxUI (root (), _strip, *tb);
repeat_size_allocation ();
}
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