A few cleanups. Map scroll wheel to movement of the viewport.

git-svn-id: svn://localhost/ardour2/branches/3.0@5197 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2009-06-15 22:45:05 +00:00
parent 22a107592e
commit 2bc94116e8
4 changed files with 130 additions and 47 deletions

View File

@ -4715,7 +4715,7 @@ Editor::post_zoom ()
void
Editor::queue_visual_change (nframes64_t where)
{
pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::TimeOrigin);
pending_visual_change.add (VisualChange::TimeOrigin);
/* if we're moving beyond the end, make sure the upper limit of the horizontal adjustment
can reach.
@ -4727,32 +4727,34 @@ Editor::queue_visual_change (nframes64_t where)
pending_visual_change.time_origin = where;
if (pending_visual_change.idle_handler_id < 0) {
pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
}
ensure_visual_change_idle_handler ();
}
void
Editor::queue_visual_change (double fpu)
{
pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::ZoomLevel);
pending_visual_change.add (VisualChange::ZoomLevel);
pending_visual_change.frames_per_unit = fpu;
if (pending_visual_change.idle_handler_id < 0) {
pending_visual_change.idle_handler_id = g_idle_add ( _idle_visual_changer, this);
}
ensure_visual_change_idle_handler ();
}
void
Editor::queue_visual_change_y (double y)
{
pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::YOrigin);
pending_visual_change.add (VisualChange::YOrigin);
pending_visual_change.y_origin = y;
ensure_visual_change_idle_handler ();
}
void
Editor::ensure_visual_change_idle_handler ()
{
if (pending_visual_change.idle_handler_id < 0) {
pending_visual_change.idle_handler_id = g_idle_add ( _idle_visual_changer, this);
}
pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
}
}
int

View File

@ -900,20 +900,23 @@ class Editor : public PublicEditor
void scroll_canvas_vertically ();
struct VisualChange {
enum Type {
TimeOrigin = 0x1,
ZoomLevel = 0x2,
YOrigin = 0x4
};
Type pending;
nframes64_t time_origin;
double frames_per_unit;
double y_origin;
int idle_handler_id;
VisualChange() : pending ((VisualChange::Type) 0), time_origin (0), frames_per_unit (0), idle_handler_id (-1) {}
enum Type {
TimeOrigin = 0x1,
ZoomLevel = 0x2,
YOrigin = 0x4
};
Type pending;
nframes64_t time_origin;
double frames_per_unit;
double y_origin;
int idle_handler_id;
VisualChange() : pending ((VisualChange::Type) 0), time_origin (0), frames_per_unit (0), idle_handler_id (-1) {}
void add (Type t) {
pending = Type (pending | t);
}
};
@ -925,6 +928,7 @@ class Editor : public PublicEditor
void queue_visual_change (nframes64_t);
void queue_visual_change (double);
void queue_visual_change_y (double);
void ensure_visual_change_idle_handler ();
void end_location_changed (ARDOUR::Location*);

View File

@ -1,3 +1,22 @@
/*
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"
@ -22,8 +41,8 @@ EditorSummary::EditorSummary (Editor* e)
_regions_dirty (true),
_width (512),
_height (64),
_pixels_per_frame (1),
_vertical_scale (1),
_x_scale (1),
_y_scale (1),
_move_dragging (false),
_moved (false),
_zoom_dragging (false)
@ -165,14 +184,14 @@ EditorSummary::render (cairo_t* cr)
}
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 = 12;
if (max_height * _vertical_scale > tallest_region_pixels) {
_vertical_scale = static_cast<double> (tallest_region_pixels) / max_height;
if (max_height * _y_scale > tallest_region_pixels) {
_y_scale = static_cast<double> (tallest_region_pixels) / max_height;
}
/* render regions */
@ -182,7 +201,7 @@ EditorSummary::render (cairo_t* cr)
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 (
@ -209,8 +228,8 @@ EditorSummary::render_region (RegionView* r, cairo_t* cr, nframes_t start, doubl
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_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);
}
@ -260,7 +279,7 @@ EditorSummary::on_size_allocate (Gtk::Allocation& alloc)
void
EditorSummary::centre_on_click (GdkEventButton* ev)
{
nframes_t x = (ev->x / _pixels_per_frame) + _session->current_start_frame();
nframes_t x = (ev->x / _x_scale) + _session->current_start_frame();
nframes_t const xh = _editor->current_page_frames () / 2;
if (x > xh) {
x -= xh;
@ -270,7 +289,7 @@ EditorSummary::centre_on_click (GdkEventButton* ev)
_editor->reset_x_origin (x);
double y = ev->y / _vertical_scale;
double y = ev->y / _y_scale;
double const yh = _editor->canvas_height () / 2;
if (y > yh) {
y -= yh;
@ -288,11 +307,11 @@ bool
EditorSummary::on_button_press_event (GdkEventButton* ev)
{
if (ev->button == 1) {
pair<double, double> xr;
pair<double, double> yr;
editor_view (&xr, &yr);
if (xr.first <= ev->x && ev->x <= xr.second && yr.first <= ev->y && ev->y <= yr.second) {
if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
@ -344,11 +363,11 @@ EditorSummary::on_button_press_event (GdkEventButton* ev)
void
EditorSummary::editor_view (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->get_trackview_group_vertical_offset () * _y_scale;
y->second = y->first + _editor->canvas_height () * _y_scale;
}
bool
@ -357,8 +376,8 @@ EditorSummary::on_motion_notify_event (GdkEventMotion* ev)
if (_move_dragging) {
_moved = true;
_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);
_editor->reset_x_origin (((ev->x - _x_offset) / _x_scale) + _session->current_start_frame ());
_editor->reset_y_origin ((ev->y - _y_offset) / _y_scale);
return true;
} else if (_zoom_dragging) {
@ -371,7 +390,7 @@ EditorSummary::on_motion_notify_event (GdkEventMotion* ev)
switch (_zoom_position) {
case LEFT:
f = 1 - (dx / _width_start);
rx += (dx / _pixels_per_frame);
rx += (dx / _x_scale);
break;
case RIGHT:
f = 1 + (dx / _width_start);
@ -413,3 +432,41 @@ EditorSummary::on_button_release_event (GdkEventButton* ev)
_editor->_dragging_playhead = false;
return true;
}
bool
EditorSummary::on_scroll_event (GdkEventScroll* ev)
{
/* mouse wheel */
pair<double, double> xr;
pair<double, double> yr;
editor_view (&xr, &yr);
if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
double x = xr.first;
if (ev->direction == GDK_SCROLL_UP) {
x += 16;
} else {
x -= 16;
}
_editor->reset_x_origin (x / _x_scale);
} else {
double y = yr.first;
if (ev->direction == GDK_SCROLL_DOWN) {
y += 16;
} else {
y -= 16;
}
_editor->reset_y_origin (y / _y_scale);
}
return true;
}

View File

@ -1,3 +1,22 @@
/*
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.
*/
#ifndef __gtk_ardour_editor_summary_h__
#define __gtk_ardour_editor_summary_h__
@ -30,6 +49,7 @@ private:
bool on_button_press_event (GdkEventButton *);
bool on_button_release_event (GdkEventButton *);
bool on_motion_notify_event (GdkEventMotion *);
bool on_scroll_event (GdkEventScroll *);
void render (cairo_t *);
GdkPixmap* get_pixmap (GdkDrawable *);
@ -42,8 +62,8 @@ private:
bool _regions_dirty; ///< true if _pixmap requires re-rendering, otherwise false
int _width; ///< pixmap width
int _height; ///< pixmap height
double _pixels_per_frame; ///< pixels per frame for the x axis of the pixmap
double _vertical_scale;
double _x_scale; ///< pixels per frame for the x axis of the pixmap
double _y_scale;
bool _move_dragging;
double _x_offset;