+/*
+ Copyright (C) 2009 Paul Davis
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
#include "ardour/session.h"
#include "time_axis_view.h"
#include "streamview.h"
#include "editor.h"
#include "region_view.h"
#include "rgb_macros.h"
+#include "keyboard.h"
using namespace std;
using namespace sigc;
* @param e Editor to represent.
*/
EditorSummary::EditorSummary (Editor* e)
- : _editor (e),
- _session (0),
- _pixmap (0),
- _regions_dirty (true),
- _width (512),
- _height (64),
- _pixels_per_frame (1),
- _vertical_scale (1),
- _dragging (false),
- _moved (false)
-
+ : EditorComponent (e),
+ _x_scale (1),
+ _y_scale (1),
+ _last_playhead (-1),
+ _move_dragging (false),
+ _moved (false),
+ _zoom_dragging (false)
+
{
-
+
}
-/** Set the session.
+/** Connect to a session.
* @param s Session.
*/
void
-EditorSummary::set_session (Session* s)
+EditorSummary::connect_to_session (Session* s)
{
- _session = s;
+ EditorComponent::connect_to_session (s);
Region::RegionPropertyChanged.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty)));
- _session->RegionRemoved.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty)));
- _session->EndTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty));
- _session->StartTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty));
+ _session_connections.push_back (_session->RegionRemoved.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty))));
+ _session_connections.push_back (_session->EndTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty)));
+ _session_connections.push_back (_session->StartTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty)));
+ _editor->playhead_cursor->PositionChanged.connect (mem_fun (*this, &EditorSummary::playhead_position_changed));
set_dirty ();
}
-/** Destroy */
-EditorSummary::~EditorSummary ()
-{
- if (_pixmap) {
- gdk_pixmap_unref (_pixmap);
- }
-}
-
/** Handle an expose event.
* @param event Event from GTK.
*/
bool
EditorSummary::on_expose_event (GdkEventExpose* event)
{
- /* Render the regions pixmap */
-
- Gdk::Rectangle const exposure (
- event->area.x, event->area.y, event->area.width, event->area.height
- );
-
- Gdk::Rectangle r = exposure;
- Gdk::Rectangle content (0, 0, _width, _height);
- bool intersects;
- r.intersect (content, intersects);
-
- if (intersects) {
-
- GdkPixmap* p = get_pixmap (get_window()->gobj ());
-
- gdk_draw_drawable (
- get_window()->gobj(),
- get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
- p,
- r.get_x(),
- r.get_y(),
- r.get_x(),
- r.get_y(),
- r.get_width(),
- r.get_height()
- );
+ CairoWidget::on_expose_event (event);
+
+ if (_session == 0) {
+ return false;
}
+ cairo_t* cr = gdk_cairo_create (get_window()->gobj());
+
/* Render the view rectangle */
-
+
pair<double, double> x;
pair<double, double> y;
- editor_view (&x, &y);
-
- cairo_t* cr = gdk_cairo_create (get_window()->gobj());
+ get_editor (&x, &y);
cairo_move_to (cr, x.first, y.first);
cairo_line_to (cr, x.second, y.first);
cairo_set_source_rgba (cr, 1, 1, 1, 0.5);
cairo_stroke (cr);
- cairo_destroy (cr);
-
- return true;
-}
-
-/** @param drawable GDK drawable.
- * @return pixmap for the regions.
- */
-GdkPixmap *
-EditorSummary::get_pixmap (GdkDrawable* drawable)
-{
- if (_regions_dirty) {
+ /* Playhead */
- if (_pixmap) {
- gdk_pixmap_unref (_pixmap);
- }
- _pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
+ cairo_set_line_width (cr, 1);
+ /* XXX: colour should be set from configuration file */
+ cairo_set_source_rgba (cr, 1, 0, 0, 1);
- cairo_t* cr = gdk_cairo_create (_pixmap);
- render (cr);
- cairo_destroy (cr);
+ double const p = _editor->playhead_cursor->current_frame * _x_scale;
+ cairo_move_to (cr, p, 0);
+ cairo_line_to (cr, p, _height);
+ cairo_stroke (cr);
+ _last_playhead = p;
- _regions_dirty = false;
- }
+ cairo_destroy (cr);
- return _pixmap;
+ return true;
}
/** Render the required regions to a cairo context.
void
EditorSummary::render (cairo_t* cr)
{
- if (_session == 0) {
- return;
- }
-
/* background */
-
+
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0, 0, _width, _height);
cairo_fill (cr);
+ if (_session == 0) {
+ return;
+ }
+
/* compute total height of all tracks */
-
+
int h = 0;
+ int max_height = 0;
for (PublicEditor::TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
- h += (*i)->effective_height ();
+ int const t = (*i)->effective_height ();
+ h += t;
+ max_height = max (max_height, t);
}
nframes_t const start = _session->current_start_frame ();
- _pixels_per_frame = static_cast<double> (_width) / (_session->current_end_frame() - start);
- _vertical_scale = static_cast<double> (_height) / h;
+ _x_scale = static_cast<double> (_width) / (_session->current_end_frame() - start);
+ _y_scale = static_cast<double> (_height) / h;
+
+ /* tallest a region should ever be in the summary, in pixels */
+ int const tallest_region_pixels = 4;
+
+ if (max_height * _y_scale > tallest_region_pixels) {
+ _y_scale = static_cast<double> (tallest_region_pixels) / max_height;
+
+ }
/* render regions */
StreamView* s = (*i)->view ();
if (s) {
- double const h = (*i)->effective_height () * _vertical_scale;
+ double const h = (*i)->effective_height () * _y_scale;
cairo_set_line_width (cr, h);
s->foreach_regionview (bind (
{
uint32_t const c = r->get_fill_color ();
cairo_set_source_rgb (cr, UINT_RGBA_R (c) / 255.0, UINT_RGBA_G (c) / 255.0, UINT_RGBA_B (c) / 255.0);
-
- cairo_move_to (cr, (r->region()->position() - start) * _pixels_per_frame, y);
- cairo_line_to (cr, ((r->region()->position() - start + r->region()->length())) * _pixels_per_frame, y);
- cairo_stroke (cr);
-}
-
-/** Set the summary so that the whole thing will be re-rendered next time it is required */
-void
-EditorSummary::set_dirty ()
-{
- ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_dirty));
- _regions_dirty = true;
- queue_draw ();
+ cairo_move_to (cr, (r->region()->position() - start) * _x_scale, y);
+ cairo_line_to (cr, ((r->region()->position() - start + r->region()->length())) * _x_scale, y);
+ cairo_stroke (cr);
}
-/** Set the summary so that just the view boundary markers will be re-rendered */
+/** Set the summary so that just the overlays (viewbox, playhead etc.) will be re-rendered */
void
-EditorSummary::set_bounds_dirty ()
+EditorSummary::set_overlays_dirty ()
{
- ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_bounds_dirty));
+ ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_overlays_dirty));
queue_draw ();
}
{
/* Use a dummy, small width and the actual height that we want */
req->width = 64;
- req->height = 64;
+ req->height = 32;
}
-/** Handle a size allocation.
- * @param alloc GTK allocation.
- */
-void
-EditorSummary::on_size_allocate (Gtk::Allocation& alloc)
-{
- Gtk::EventBox::on_size_allocate (alloc);
-
- _width = alloc.get_width ();
- _height = alloc.get_height ();
-
- set_dirty ();
-}
void
EditorSummary::centre_on_click (GdkEventButton* ev)
{
- nframes_t x = (ev->x / _pixels_per_frame) + _session->current_start_frame();
- nframes_t const xh = _editor->current_page_frames () / 2;
- if (x > xh) {
- x -= xh;
- } else {
- x = 0;
+ pair<double, double> xr;
+ pair<double, double> yr;
+ get_editor (&xr, &yr);
+
+ double const w = xr.second - xr.first;
+ double const h = yr.second - yr.first;
+
+ xr.first = ev->x - w / 2;
+ xr.second = ev->x + w / 2;
+ yr.first = ev->y - h / 2;
+ yr.second = ev->y + h / 2;
+
+ if (xr.first < 0) {
+ xr.first = 0;
+ xr.second = w;
+ } else if (xr.second > _width) {
+ xr.second = _width;
+ xr.first = _width - w;
}
-
- _editor->reset_x_origin (x);
-
- double y = ev->y / _vertical_scale;
- double const yh = _editor->canvas_height () / 2;
- if (y > yh) {
- y -= yh;
- } else {
- y = 0;
+
+ if (yr.first < 0) {
+ yr.first = 0;
+ yr.second = h;
+ } else if (yr.second > _height) {
+ yr.second = _height;
+ yr.first = _height - h;
}
-
- _editor->reset_y_origin (y);
+
+ set_editor (xr, yr);
}
/** Handle a button press.
pair<double, double> xr;
pair<double, double> yr;
- editor_view (&xr, &yr);
+ get_editor (&xr, &yr);
- if (xr.first <= ev->x && ev->x <= xr.second && yr.first <= ev->y && ev->y <= yr.second) {
+ _start_editor_x = xr;
+ _start_editor_y = yr;
+ _start_mouse_x = ev->x;
+ _start_mouse_y = ev->y;
- /* click inside the view rectangle: drag it */
- _dragging = true;
- _moved = false;
- _x_offset = ev->x - xr.first;
- _y_offset = ev->y - yr.first;
+ if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
+
+ /* primary-modifier-click: start a zoom drag */
+
+ double const hx = (xr.first + xr.second) * 0.5;
+ _zoom_left = ev->x < hx;
+ _zoom_dragging = true;
_editor->_dragging_playhead = true;
-
- } else {
-
- /* click outside the view rectangle: centre the view around the mouse click */
+
+
+ /* In theory, we could support vertical dragging, which logically
+ might scale track heights in order to make the editor reflect
+ the dragged viewbox. However, having tried this:
+ a) it's hard to do
+ b) it's quite slow
+ c) it doesn't seem particularly useful, especially with the
+ limited height of the summary
+
+ So at the moment we don't support that...
+ */
+
+
+ } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
+
+ /* secondary-modifier-click: locate playhead */
+ if (_session) {
+ _session->request_locate (ev->x / _x_scale + _session->current_start_frame());
+ }
+
+ } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
+
centre_on_click (ev);
+
+ } else {
+
+ /* ordinary click: start a move drag */
+
+ _move_dragging = true;
+ _moved = false;
+ _editor->_dragging_playhead = true;
}
}
}
void
-EditorSummary::editor_view (pair<double, double>* x, pair<double, double>* y) const
+EditorSummary::get_editor (pair<double, double>* x, pair<double, double>* y) const
{
- x->first = (_editor->leftmost_position () - _session->current_start_frame ()) * _pixels_per_frame;
- x->second = x->first + _editor->current_page_frames() * _pixels_per_frame;
+ x->first = (_editor->leftmost_position () - _session->current_start_frame ()) * _x_scale;
+ x->second = x->first + _editor->current_page_frames() * _x_scale;
- y->first = _editor->get_trackview_group_vertical_offset () * _vertical_scale;
- y->second = y->first + _editor->canvas_height () * _vertical_scale;
+ y->first = _editor->vertical_adjustment.get_value() * _y_scale;
+ y->second = y->first + _editor->canvas_height () * _y_scale;
}
bool
EditorSummary::on_motion_notify_event (GdkEventMotion* ev)
{
- if (!_dragging) {
- return false;
- }
+ pair<double, double> xr = _start_editor_x;
+ pair<double, double> yr = _start_editor_y;
+
+ if (_move_dragging) {
+
+ _moved = true;
+
+ xr.first += ev->x - _start_mouse_x;
+ xr.second += ev->x - _start_mouse_x;
+ yr.first += ev->y - _start_mouse_y;
+ yr.second += ev->y - _start_mouse_y;
+
+ set_editor (xr, yr);
+
+ } else if (_zoom_dragging) {
- _moved = true;
+ double const dx = ev->x - _start_mouse_x;
- _editor->reset_x_origin (((ev->x - _x_offset) / _pixels_per_frame) + _session->current_start_frame ());
- _editor->reset_y_origin ((ev->y - _y_offset) / _vertical_scale);
+ if (_zoom_left) {
+ xr.first += dx;
+ } else {
+ xr.second += dx;
+ }
+
+ set_editor (xr, yr);
+ }
return true;
}
bool
-EditorSummary::on_button_release_event (GdkEventButton* ev)
+EditorSummary::on_button_release_event (GdkEventButton*)
{
- if (_dragging && !_moved) {
- centre_on_click (ev);
- }
-
- _dragging = false;
+ _move_dragging = false;
+ _zoom_dragging = false;
_editor->_dragging_playhead = false;
return true;
}
+
+bool
+EditorSummary::on_scroll_event (GdkEventScroll* ev)
+{
+ /* mouse wheel */
+
+ pair<double, double> xr;
+ pair<double, double> yr;
+ get_editor (&xr, &yr);
+
+ double const amount = 8;
+
+ if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
+
+ if (ev->direction == GDK_SCROLL_UP) {
+ xr.first += amount;
+ xr.second += amount;
+ } else {
+ xr.first -= amount;
+ xr.second -= amount;
+ }
+
+ } else {
+
+ if (ev->direction == GDK_SCROLL_DOWN) {
+ yr.first += amount;
+ yr.second += amount;
+ } else {
+ yr.first -= amount;
+ yr.second -= amount;
+ }
+
+ }
+
+ set_editor (xr, yr);
+ return true;
+}
+
+void
+EditorSummary::set_editor (pair<double,double> const & x, pair<double, double> const & y)
+{
+ if (_editor->pending_visual_change.idle_handler_id < 0) {
+
+ /* As a side-effect, the Editor's visual change idle handler processes
+ pending GTK events. Hence this motion notify handler can be called
+ in the middle of a visual change idle handler, and if this happens,
+ the queue_visual_change calls below modify the variables that the
+ idle handler is working with. This causes problems. Hence the
+ check above. It ensures that we won't modify the pending visual change
+ while a visual change idle handler is in progress. It's not perfect,
+ as it also means that we won't change these variables if an idle handler
+ is merely pending but not executing. But c'est la vie.
+ */
+
+ _editor->reset_x_origin (x.first / _x_scale);
+ _editor->reset_y_origin (y.first / _y_scale);
+
+ double const nx = (
+ ((x.second - x.first) / _x_scale) /
+ _editor->frame_to_unit (_editor->current_page_frames())
+ );
+
+ if (nx != _editor->get_current_zoom ()) {
+ _editor->reset_zoom (nx);
+ }
+ }
+}
+
+void
+EditorSummary::playhead_position_changed (nframes64_t p)
+{
+ if (int (p * _x_scale) != int (_last_playhead)) {
+ set_overlays_dirty ();
+ }
+}
+
+
projects / ardour.git / blobdiff