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Diffstat (limited to 'libs/gtkmm2ext/motionfeedback.cc')
| -rw-r--r-- | libs/gtkmm2ext/motionfeedback.cc | 693 |
1 files changed, 0 insertions, 693 deletions
diff --git a/libs/gtkmm2ext/motionfeedback.cc b/libs/gtkmm2ext/motionfeedback.cc deleted file mode 100644 index 0dccdabc2f..0000000000 --- a/libs/gtkmm2ext/motionfeedback.cc +++ /dev/null @@ -1,693 +0,0 @@ -/* - Copyright (C) 2010-2011 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. - - $Id: motionfeedback.cc,v 1.5 2004/03/01 03:44:19 pauld Exp $ -*/ - -#include <iostream> -#include <cmath> -#include <cstdlib> -#include <algorithm> -#include <unistd.h> -#include <stdio.h> /* for snprintf, grrr */ - -#include "pbd/gstdio_compat.h" - -#include <gdk/gdkkeysyms.h> -#include <gtkmm.h> - -#include "pbd/controllable.h" -#include "pbd/compose.h" -#include "pbd/error.h" - -#include "gtkmm2ext/motionfeedback.h" -#include "gtkmm2ext/keyboard.h" -#include "gtkmm2ext/prolooks-helpers.h" -#include "gtkmm2ext/gui_thread.h" - -#include "i18n.h" - -using namespace Gtk; -using namespace Gtkmm2ext; -using namespace sigc; - -using PBD::error; -using PBD::Controllable; - -Gdk::Color* MotionFeedback::base_color; - -MotionFeedback::MotionFeedback (Glib::RefPtr<Gdk::Pixbuf> pix, - Type t, - boost::shared_ptr<PBD::Controllable> c, - double default_val, - double step_increment, - double page_increment, - const char *widget_name, - bool with_numeric_display, - int subw, - int subh) - : _controllable (c) - , value (0) - , default_value (default_val) - , step_inc (step_increment) - , page_inc (page_increment) - , type (t) - , value_packer (0) - , pixbuf (pix) - , subwidth (subw) - , subheight (subh) -{ - if (!base_color) { - base_color = new Gdk::Color ("#1a5274"); - } - - char value_name[1024]; - - print_func = default_printer; - print_arg = 0; - - - HBox* hpacker = manage (new HBox); - hpacker->pack_start (pixwin, true, true); - hpacker->show (); - pack_start (*hpacker, false, false); - pixwin.show (); - - if (with_numeric_display) { - - value_packer = new EventBox; - value_packer->set_name ("MotionControllerValue"); - value_packer->show (); - value_packer->set_border_width (6); - - value = new Label; - value->set_justify (Gtk::JUSTIFY_RIGHT); - value->show (); - - value_packer->add (*value); - - hpacker = manage (new HBox); - hpacker->pack_start (*value_packer, true, false); - hpacker->show (); - hpacker->set_border_width (6); - - pack_start (*hpacker, false, false); - - if (widget_name) { - snprintf (value_name, sizeof(value_name), "%sValue", widget_name); - value->set_name (value_name); - } - - if (_controllable) { - char buf[32]; - print_func (buf, _controllable, print_arg); - value->set_text (buf); - } - } - - pixwin.set_events (Gdk::BUTTON_PRESS_MASK| - Gdk::BUTTON_RELEASE_MASK| - Gdk::POINTER_MOTION_MASK| - Gdk::ENTER_NOTIFY_MASK| - Gdk::LEAVE_NOTIFY_MASK| - Gdk::SCROLL_MASK| - Gdk::KEY_PRESS_MASK| - Gdk::KEY_RELEASE_MASK); - - pixwin.set_flags (CAN_FOCUS); - - /* Proxy all important events on the pixwin to ourselves */ - - pixwin.signal_button_press_event().connect(mem_fun (*this,&MotionFeedback::pixwin_button_press_event)); - pixwin.signal_button_release_event().connect(mem_fun (*this,&MotionFeedback::pixwin_button_release_event)); - pixwin.signal_motion_notify_event().connect(mem_fun (*this,&MotionFeedback::pixwin_motion_notify_event)); - pixwin.signal_enter_notify_event().connect(mem_fun (*this,&MotionFeedback::pixwin_enter_notify_event)); - pixwin.signal_leave_notify_event().connect(mem_fun (*this,&MotionFeedback::pixwin_leave_notify_event)); - pixwin.signal_key_press_event().connect(mem_fun (*this,&MotionFeedback::pixwin_key_press_event)); - pixwin.signal_scroll_event().connect(mem_fun (*this,&MotionFeedback::pixwin_scroll_event)); - pixwin.signal_expose_event().connect(mem_fun (*this,&MotionFeedback::pixwin_expose_event), true); - pixwin.signal_size_request().connect(mem_fun (*this,&MotionFeedback::pixwin_size_request)); -} - -MotionFeedback::~MotionFeedback() -{ - delete value; - delete value_packer; -} - -bool -MotionFeedback::pixwin_button_press_event (GdkEventButton *ev) -{ - if (binding_proxy.button_press_handler (ev)) { - return true; - } - - switch (ev->button) { - case 1: - grab_is_fine = false; - break; - case 2: - grab_is_fine = true; - break; - case 3: - return false; - } - - gtk_grab_add(GTK_WIDGET(pixwin.gobj())); - - grabbed_y = ev->y_root; - grabbed_x = ev->x_root; - - return false; -} - -bool -MotionFeedback::pixwin_button_release_event (GdkEventButton *ev) -{ - if (!_controllable) { - return false; - } - - switch (ev->button) { - case 1: - if (pixwin.has_grab()) { - if (!grab_is_fine) { - gtk_grab_remove - (GTK_WIDGET(pixwin.gobj())); - } - } - if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) { - /* shift click back to the default */ - _controllable->set_value (default_value, Controllable::NoGroup); - return true; - } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) { - /* ctrl click back to the minimum value */ - _controllable->set_value (_controllable->lower (), Controllable::NoGroup); - } - break; - - case 3: - if (pixwin.has_grab()) { - if (grab_is_fine) { - gtk_grab_remove - (GTK_WIDGET(pixwin.gobj())); - } - } - break; - } - - return VBox::on_button_release_event (ev); -} - -bool -MotionFeedback::pixwin_motion_notify_event (GdkEventMotion *ev) -{ - if (!_controllable) { - return false; - } - - gfloat multiplier; - gfloat x_delta; - gfloat y_delta; - - if (!pixwin.has_grab()) { - return VBox::on_motion_notify_event (ev); - } - - multiplier = ((ev->state & Keyboard::TertiaryModifier) ? 100 : 1) * - ((ev->state & Keyboard::PrimaryModifier) ? 10 : 1) * - ((ev->state & Keyboard::SecondaryModifier) ? 0.1 : 1); - - if (ev->state & Gdk::BUTTON1_MASK) { - - /* vertical control */ - - y_delta = grabbed_y - ev->y_root; - grabbed_y = ev->y_root; - - x_delta = ev->x_root - grabbed_x; - - if (y_delta == 0) return TRUE; - - y_delta *= 1 + (x_delta/100); - y_delta *= multiplier; - y_delta /= 10; - - _controllable->set_value (adjust ((grab_is_fine ? step_inc : page_inc) * y_delta), Controllable::NoGroup); - - } else if (ev->state & Gdk::BUTTON2_MASK) { - - /* rotary control */ - - double x = ev->x - subwidth/2; - double y = - ev->y + subwidth/2; - double angle = std::atan2 (y, x) / M_PI; - - if (angle < -0.5) { - angle += 2.0; - } - - angle = -(2.0/3.0) * (angle - 1.25); - angle *= multiplier; - - _controllable->set_value (to_control_value (angle), Controllable::NoGroup); - } - - - return true; -} - -bool -MotionFeedback::pixwin_enter_notify_event (GdkEventCrossing*) -{ - pixwin.grab_focus(); - return false; -} - -bool -MotionFeedback::pixwin_leave_notify_event (GdkEventCrossing*) -{ - pixwin.unset_flags (HAS_FOCUS); - return false; -} - -bool -MotionFeedback::pixwin_key_press_event (GdkEventKey *ev) -{ - if (!_controllable) { - return false; - } - - bool retval = false; - double multiplier; - - multiplier = ((ev->state & Keyboard::TertiaryModifier) ? 100.0 : 1.0) * - ((ev->state & Keyboard::SecondaryModifier) ? 10.0 : 1.0) * - ((ev->state & Keyboard::PrimaryModifier) ? 2.0 : 1.0); - - switch (ev->keyval) { - case GDK_Page_Up: - retval = true; - _controllable->set_value (adjust (multiplier * page_inc), Controllable::NoGroup); - break; - - case GDK_Page_Down: - retval = true; - _controllable->set_value (adjust (-multiplier * page_inc), Controllable::NoGroup); - break; - - case GDK_Up: - retval = true; - _controllable->set_value (adjust (multiplier * step_inc), Controllable::NoGroup); - break; - - case GDK_Down: - retval = true; - _controllable->set_value (adjust (-multiplier * step_inc), Controllable::NoGroup); - break; - - case GDK_Home: - retval = true; - _controllable->set_value (_controllable->lower(), Controllable::NoGroup); - break; - - case GDK_End: - retval = true; - _controllable->set_value (_controllable->upper(), Controllable::NoGroup); - break; - } - - return retval; -} - -bool -MotionFeedback::pixwin_expose_event (GdkEventExpose*) -{ - if (!_controllable) { - return true; - } - - GdkWindow *window = pixwin.get_window()->gobj(); - double display_val = to_display_value (_controllable->get_value()); - int32_t phase = lrint (display_val * 64.0); - - // skip middle phase except for true middle value - - if (type == Rotary && phase == 32) { - double pt = (display_val * 2.0) - 1.0; - if (pt < 0) - phase = 31; - if (pt > 0) - phase = 33; - } - - // endless knob: skip 90deg highlights unless the value is really a multiple of 90deg - - if (type == Endless && !(phase % 16)) { - if (phase == 64) { - phase = 0; - } - - double nom = phase / 64.0; - double diff = display_val - nom; - - if (diff > 0.0001) - phase = (phase + 1) % 64; - if (diff < -0.0001) - phase = (phase + 63) % 64; - } - - phase = std::min (phase, (int32_t) 63); - - GtkWidget* widget = GTK_WIDGET(pixwin.gobj()); - gdk_draw_pixbuf (GDK_DRAWABLE(window), widget->style->fg_gc[0], - pixbuf->gobj(), - phase * subwidth, type * subheight, - /* center image in allocated area */ - (get_width() - subwidth)/2, - 0, - subwidth, subheight, GDK_RGB_DITHER_NORMAL, 0, 0); - - return true; -} - -bool -MotionFeedback::pixwin_scroll_event (GdkEventScroll* ev) -{ - double scale; - - if (!_controllable) { - return false; - } - - if (ev->state & Keyboard::GainFineScaleModifier) { - if (ev->state & Keyboard::GainExtraFineScaleModifier) { - scale = 0.01; - } else { - scale = 0.10; - } - } else { - scale = 0.20; - } - - switch (ev->direction) { - case GDK_SCROLL_UP: - case GDK_SCROLL_RIGHT: - _controllable->set_value (adjust (scale * page_inc), Controllable::NoGroup); - break; - - case GDK_SCROLL_DOWN: - case GDK_SCROLL_LEFT: - _controllable->set_value (adjust (-scale * page_inc), Controllable::NoGroup); - break; - } - - return true; -} - -void -MotionFeedback::pixwin_size_request (GtkRequisition* req) -{ - req->width = subwidth; - req->height = subheight; -} - - -void -MotionFeedback::controllable_value_changed () -{ - if (value) { - char buf[32]; - print_func (buf, _controllable, print_arg); - value->set_text (buf); - } - - pixwin.queue_draw (); -} - -void -MotionFeedback::set_controllable (boost::shared_ptr<PBD::Controllable> c) -{ - _controllable = c; - binding_proxy.set_controllable (c); - controller_connection.disconnect (); - - if (c) { - c->Changed.connect (controller_connection, MISSING_INVALIDATOR, boost::bind (&MotionFeedback::controllable_value_changed, this), gui_context()); - - char buf[32]; - print_func (buf, _controllable, print_arg); - value->set_text (buf); - } - - pixwin.queue_draw (); -} - -boost::shared_ptr<PBD::Controllable> -MotionFeedback::controllable () const -{ - return _controllable; -} - -void -MotionFeedback::default_printer (char buf[32], const boost::shared_ptr<PBD::Controllable>& c, void *) -{ - if (c) { - sprintf (buf, "%.2f", c->get_value()); - } else { - buf[0] = '\0'; - } -} - -Glib::RefPtr<Gdk::Pixbuf> -MotionFeedback::render_pixbuf (int size) -{ - Glib::RefPtr<Gdk::Pixbuf> pixbuf; - char *path; - int fd; - GError *gerror = NULL; - - fd = g_file_open_tmp ("mfimgXXXXXX", &path, &gerror); - - if (gerror) { - error << string_compose (_("motionfeedback: failed to open a temporary file for writing: %1"), gerror->message) << endmsg; - g_error_free (gerror); - return pixbuf; - } else { - ::close (fd); - } - - - GdkColor col2 = {0,0,0,0}; - GdkColor col3 = {0,0,0,0}; - GdkColor dark; - GdkColor bright; - ProlooksHSV* hsv; - - hsv = prolooks_hsv_new_for_gdk_color (base_color->gobj()); - bright = (prolooks_hsv_to_gdk_color (hsv, &col2), col2); - prolooks_hsv_set_saturation (hsv, 0.66); - prolooks_hsv_set_value (hsv, 0.67); - dark = (prolooks_hsv_to_gdk_color (hsv, &col3), col3); - - cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, size * 64, size); - cairo_t* cr = cairo_create (surface); - - for (int i = 0; i < 64; ++i) { - cairo_save (cr); - core_draw (cr, i, size, 20, size*i, 0, &bright, &dark); - cairo_restore (cr); - } - - if (cairo_surface_write_to_png (surface, path) != CAIRO_STATUS_SUCCESS) { - error << string_compose (_("motionfeedback: could not save image set to %1"), path) << endmsg; - return pixbuf; - } - - cairo_destroy (cr); - cairo_surface_destroy (surface); - - try { - pixbuf = Gdk::Pixbuf::create_from_file (path); - } catch (const Gdk::PixbufError &e) { - error << string_compose (_("motionfeedback: caught PixbufError: %1"), e.what()) << endmsg; - } catch (...) { - error << _("motionfeedback: unknown exception") << endmsg; - } - - g_unlink (path); - g_free (path); - - return pixbuf; -} - -void -MotionFeedback::core_draw (cairo_t* cr, int phase, double size, double progress_width, double xorigin, double yorigin, - const GdkColor* bright, const GdkColor* dark) -{ - double xc; - double yc; - double start_angle; - double end_angle; - double value_angle; - double value; - double value_x; - double value_y; - double start_angle_x; - double start_angle_y; - double end_angle_x; - double end_angle_y; - double progress_radius; - double progress_radius_inner; - double progress_radius_outer; - - g_return_if_fail (cr != NULL); - - progress_radius = 40.0; - progress_radius_inner = progress_radius - (progress_width / 2.0); - progress_radius_outer = progress_radius + (progress_width / 2.0); - - const double pad = 2.0; /* line width for boundary of progress ring */ - const double actual_width = ((2.0 * pad) + (2.0 * progress_radius_outer)); - const double scale_factor = size / actual_width; - - /* knob center is at middle of the area bounded by (xorigin,yorigin) and (xorigin+size, yorigin+size) - but the coordinates will be scaled by the scale factor when cairo uses them so first - adjust them by the reciprocal of the scale factor. - */ - - xc = (xorigin + (size / 2.0)) * (1.0/scale_factor); - yc = (yorigin + (size / 2.0)) * (1.0/scale_factor); - - value = (phase * 1.0) / (65 - 1); - - start_angle = ((180 - 65) * G_PI) / 180; - end_angle = ((360 + 65) * G_PI) / 180; - - value_angle = start_angle + (value * (end_angle - start_angle)); - value_x = cos (value_angle); - value_y = sin (value_angle); - start_angle_x = cos (start_angle); - start_angle_y = sin (start_angle); - end_angle_x = cos (end_angle); - end_angle_y = sin (end_angle); - - cairo_scale (cr, scale_factor, scale_factor); - - //dark arc background - cairo_set_source_rgb (cr, 0.3, 0.3, 0.3 ); - cairo_set_line_width (cr, progress_width); - cairo_arc (cr, xc, yc, progress_radius, start_angle, end_angle); - cairo_stroke (cr); - - - float r = (value) * (((float)bright->red)/G_MAXUINT16) + (1.0-value)*(((float)dark->red)/G_MAXUINT16); - float g = (value) * (((float)bright->green)/G_MAXUINT16) + (1.0-value)*(((float)dark->green)/G_MAXUINT16); - float b = (value) * (((float)bright->blue)/G_MAXUINT16) + (1.0-value)*(((float)dark->blue)/G_MAXUINT16); - - //colored arc - cairo_set_source_rgb (cr, r,g,b); - cairo_set_line_width (cr, progress_width); - cairo_arc (cr, xc, yc, progress_radius, start_angle, value_angle); - cairo_stroke (cr); - - //overall shade - cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, progress_radius_outer); - cairo_pattern_add_color_stop_rgba (shade_pattern, 0, 1,1,1, 0.3); - cairo_pattern_add_color_stop_rgba (shade_pattern, 1, 1,1,1, 0.0); - cairo_set_source (cr, shade_pattern); - cairo_arc (cr, xc, yc, progress_radius_outer-1, 0, 2.0*G_PI); - cairo_fill (cr); - cairo_pattern_destroy (shade_pattern); - - //black border - cairo_set_source_rgb (cr, 0, 0, 0 ); - cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); - cairo_set_line_width (cr, 1.0/scale_factor); - cairo_move_to (cr, xc + (progress_radius_outer * start_angle_x), yc + (progress_radius_outer * start_angle_y)); - cairo_line_to (cr, xc + (progress_radius_inner * start_angle_x), yc + (progress_radius_inner * start_angle_y)); - cairo_stroke (cr); - cairo_move_to (cr, xc + (progress_radius_outer * end_angle_x), yc + (progress_radius_outer * end_angle_y)); - cairo_line_to (cr, xc + (progress_radius_inner * end_angle_x), yc + (progress_radius_inner * end_angle_y)); - cairo_stroke (cr); - cairo_arc (cr, xc, yc, progress_radius_outer, start_angle, end_angle); - cairo_stroke (cr); - cairo_arc (cr, xc, yc, progress_radius_inner, start_angle, end_angle); - cairo_stroke (cr); - - //knob shadow - cairo_save(cr); - cairo_translate(cr, 6, 6 ); - cairo_set_source_rgba (cr, 0,0,0,0.1 ); - cairo_arc (cr, xc, yc, progress_radius_inner-1, 0, 2.0*G_PI); - cairo_fill (cr); - cairo_restore(cr); - - //inner circle - cairo_set_source_rgba (cr, 0.3, 0.3, 0.3, 1 ); - cairo_arc (cr, xc, yc, progress_radius_inner-1, 0, 2.0*G_PI); - cairo_fill (cr); - - //knob shade - shade_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, progress_radius_outer); - cairo_pattern_add_color_stop_rgba (shade_pattern, 0, 1,1,1, 0.5); - cairo_pattern_add_color_stop_rgba (shade_pattern, 1, 0,0,0, 0.3); - cairo_set_source (cr, shade_pattern); - cairo_arc (cr, xc, yc, progress_radius_inner-1, 0, 2.0*G_PI); - cairo_fill (cr); - cairo_pattern_destroy (shade_pattern); - - //inner circle - cairo_set_source_rgba (cr, 0.3, 0.3, 0.3, 0.5 ); - cairo_arc (cr, xc, yc, progress_radius_inner-5, 0, 2.0*G_PI); - cairo_fill (cr); - - //line - cairo_save(cr); - cairo_translate(cr, 2, 2 ); - cairo_set_source_rgba (cr, 0,0,0,0.5 ); - cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); - cairo_set_line_width (cr, 4); - cairo_move_to (cr, xc + (progress_radius_inner * value_x), yc + (progress_radius_inner * value_y)); - cairo_line_to (cr, xc + ((progress_radius_inner*0.4) * value_x), yc + ((progress_radius_inner*0.4) * value_y)); - cairo_stroke (cr); - cairo_restore(cr); - cairo_set_source_rgba (cr, 1,1,1,0.7 ); - cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); - cairo_set_line_width (cr, 4.0); - cairo_move_to (cr, xc + (progress_radius_inner * value_x), yc + (progress_radius_inner * value_y)); - cairo_line_to (cr, xc + ((progress_radius_inner*0.4) * value_x), yc + ((progress_radius_inner*0.4) * value_y)); - cairo_stroke (cr); - - - //highlight if focused (damn, this is a cached image which doesn't (yet) have a "focused" state -// if (pixwin.has_focus()) { -// cairo_set_source_rgba (cr, 1,1,1, 0.5 ); -// cairo_arc (cr, xc, yc, progress_radius_inner-1, 0, 2.0*G_PI); -// cairo_fill (cr); -// } -} - -void -MotionFeedback::set_lamp_color (const std::string& str) -{ - if (base_color) { - *base_color = Gdk::Color (str); - } else { - base_color = new Gdk::Color (str); - } -} |