X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fgtkmm2ext%2Fpixfader.cc;h=f4e362bca1b6ec0b3670d3a110354c8fa9cd2bad;hb=93349141379343c91ea0ec2127d694f6cf2e230e;hp=6099671fd297ec327a0f7800a0db616d3c9ff05b;hpb=fb204c3dcf9d5fabb5dae4bd25365302b9909050;p=ardour.git diff --git a/libs/gtkmm2ext/pixfader.cc b/libs/gtkmm2ext/pixfader.cc index 6099671fd2..f4e362bca1 100644 --- a/libs/gtkmm2ext/pixfader.cc +++ b/libs/gtkmm2ext/pixfader.cc @@ -20,6 +20,9 @@ #include + +#include "pbd/stacktrace.h" + #include "gtkmm2ext/pixfader.h" #include "gtkmm2ext/keyboard.h" #include "gtkmm2ext/rgb_macros.h" @@ -32,121 +35,60 @@ using namespace std; #define CORNER_RADIUS 4 #define FADER_RESERVE (2*CORNER_RADIUS) -PixFader::PixFader ( - Glib::RefPtr belt, - Glib::RefPtr belt_desensitised, - Gtk::Adjustment& adj, - int orientation, - int fader_length - ) - : adjustment (adj), - _orien(orientation) +std::list PixFader::_patterns; + +PixFader::PixFader (Gtk::Adjustment& adj, int orientation, int fader_length, int fader_girth) + : adjustment (adj) + , span (fader_length) + , girth (fader_girth) + , _orien (orientation) + , pattern (0) + , _hovering (false) + , last_drawn (-1) + , dragging (false) { -#if 0 - pixbuf[NORMAL] = belt; - pixbuf[DESENSITISED] = belt_desensitised; -#endif - - pattern = 0; - shine_pattern = 0; - - _hovering = false; - dragging = false; default_value = adjustment.get_value(); - last_drawn = -1; - - view.x = 0; - view.y = 0; - - if (orientation == VERT) { - view.width = girth = 24; - } else { - view.height = girth = 24; - } - - set_fader_length (fader_length); + update_unity_position (); add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK|Gdk::SCROLL_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK); adjustment.signal_value_changed().connect (mem_fun (*this, &PixFader::adjustment_changed)); adjustment.signal_changed().connect (mem_fun (*this, &PixFader::adjustment_changed)); - -#if 0 - for (int i = 0; i < STATES; ++i) { - Cairo::Format format; - - if (pixbuf[i]->get_has_alpha()) { - format = Cairo::FORMAT_ARGB32; - } else { - format = Cairo::FORMAT_RGB24; - } - - belt_surface[i] = Cairo::ImageSurface::create (format, pixbuf[i]->get_width(), pixbuf[i]->get_height()); - belt_context[i] = Cairo::Context::create (belt_surface[i]); - Gdk::Cairo::set_source_pixbuf (belt_context[i], pixbuf[i], 0.0, 0.0); - belt_context[i]->paint(); - } -#endif - - left_r = 0; - left_g = 0; - left_b = 0; - - right_r = 0; - right_g = 0; - right_b = 0; } PixFader::~PixFader () { } -void -PixFader::set_border_colors (uint32_t left, uint32_t right) +cairo_pattern_t* +PixFader::find_pattern (double afr, double afg, double afb, + double abr, double abg, double abb, + int w, int h) { - int r, g, b; - UINT_TO_RGB(left, &r, &g, &b); - left_r = r/255.0; - left_g = g/255.0; - left_b = b/255.0; - UINT_TO_RGB(right, &r, &g, &b); - right_r = r/255.0; - right_g = g/255.0; - right_b = b/255.0; + for (list::iterator f = _patterns.begin(); f != _patterns.end(); ++f) { + if ((*f)->matches (afr, afg, afb, abr, abg, abb, w, h)) { + return (*f)->pattern; + } + } + return 0; } void PixFader::create_patterns () { Gdk::Color c = get_style()->get_fg (get_state()); - float r, g, b; - r = c.get_red_p (); - g = c.get_green_p (); - b = c.get_blue_p (); + float fr, fg, fb; + float br, bg, bb; - if (_orien == VERT) { - pattern = cairo_pattern_create_linear (0.0, 0.0, get_width(), 0); - cairo_pattern_add_color_stop_rgba (pattern, 0, r*0.8,g*0.8,b*0.8, 1.0); - cairo_pattern_add_color_stop_rgba (pattern, 1, r*0.6,g*0.6,b*0.6, 1.0); - - shine_pattern = cairo_pattern_create_linear (0.0, 0.0, 15, 0); - cairo_pattern_add_color_stop_rgba (shine_pattern, 0, 1,1,1,0.0); - cairo_pattern_add_color_stop_rgba (shine_pattern, 0.2, 1,1,1,0.3); - cairo_pattern_add_color_stop_rgba (shine_pattern, 0.5, 1,1,1,0.0); - cairo_pattern_add_color_stop_rgba (shine_pattern, 1, 1,1,1,0.0); - } else { - float rheight = get_height(); - - pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, rheight); - cairo_pattern_add_color_stop_rgba (pattern, 0, r*0.8,g*0.8,b*0.8, 1.0); - cairo_pattern_add_color_stop_rgba (pattern, 1, r*0.6,g*0.6,b*0.6, 1.0); - - shine_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, rheight); - cairo_pattern_add_color_stop_rgba (shine_pattern, 0, 1,1,1,0.0); - cairo_pattern_add_color_stop_rgba (shine_pattern, 0.2, 1,1,1,0.3); - cairo_pattern_add_color_stop_rgba (shine_pattern, 0.5, 1,1,1,0.0); - cairo_pattern_add_color_stop_rgba (shine_pattern, 1, 1,1,1,0.0); - } + fr = c.get_red_p (); + fg = c.get_green_p (); + fb = c.get_blue_p (); + + c = get_style()->get_bg (get_state()); + + br = c.get_red_p (); + bg = c.get_green_p (); + bb = c.get_blue_p (); if ( !_text.empty()) { _layout->get_pixel_size (_text_width, _text_height); @@ -154,10 +96,92 @@ PixFader::create_patterns () _text_width = 0; _text_height = 0; } + c = get_style()->get_text (get_state()); + text_r = c.get_red_p (); text_g = c.get_green_p (); text_b = c.get_blue_p (); + + cairo_surface_t* surface; + cairo_t* tc = 0; + float radius = CORNER_RADIUS; + + double w = get_width(); + + if (w <= 1 || get_height() <= 1) { + return; + } + + if ((pattern = find_pattern (fr, fg, fb, br, bg, bb, get_width(), get_height())) != 0) { + /* found it - use it */ + return; + } + + if (_orien == VERT) { + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, get_width(), get_height() * 2.0); + tc = cairo_create (surface); + + /* paint background + border */ + + cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, get_width(), 0); + cairo_pattern_add_color_stop_rgba (shade_pattern, 0, br*0.8,bg*0.8,bb*0.8, 1.0); + cairo_pattern_add_color_stop_rgba (shade_pattern, 1, br*0.6,bg*0.6,bb*0.6, 1.0); + cairo_set_source (tc, shade_pattern); + cairo_rectangle (tc, 0, 0, get_width(), get_height() * 2.0); + cairo_fill (tc); + + cairo_pattern_destroy (shade_pattern); + + /* paint lower shade */ + + w -= 2.0; + + shade_pattern = cairo_pattern_create_linear (0.0, 0.0, w, 0); + cairo_pattern_add_color_stop_rgba (shade_pattern, 0, fr*0.8,fg*0.8,fb*0.8, 1.0); + cairo_pattern_add_color_stop_rgba (shade_pattern, 1, fr*0.6,fg*0.6,fb*0.6, 1.0); + cairo_set_source (tc, shade_pattern); + Gtkmm2ext::rounded_top_half_rectangle (tc, 1.0, get_height(), w, get_height(), radius-1.5); + cairo_fill (tc); + + cairo_pattern_destroy (shade_pattern); + + pattern = cairo_pattern_create_for_surface (surface); + + } else { + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, get_width() * 2.0, get_height()); + tc = cairo_create (surface); + + /* paint right shade (background section)*/ + + cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()); + cairo_pattern_add_color_stop_rgba (shade_pattern, 0, br*0.8,bg*0.8,bb*0.8, 1.0); + cairo_pattern_add_color_stop_rgba (shade_pattern, 1, br*0.6,bg*0.6,bb*0.6, 1.0); + cairo_set_source (tc, shade_pattern); + cairo_rectangle (tc, 0, 0, get_width() * 2.0, get_height()); + cairo_fill (tc); + + /* paint left shade (active section/foreground) */ + + shade_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()); + cairo_pattern_add_color_stop_rgba (shade_pattern, 0, fr*0.8,fg*0.8,fb*0.8, 1.0); + cairo_pattern_add_color_stop_rgba (shade_pattern, 1, fr*0.6,fg*0.6,fb*0.6, 1.0); + cairo_set_source (tc, shade_pattern); + Gtkmm2ext::rounded_right_half_rectangle (tc, 0, 1, get_width(), get_height() - 2.0, radius-1.5); + cairo_fill (tc); + cairo_pattern_destroy (shade_pattern); + + pattern = cairo_pattern_create_for_surface (surface); + } + + /* cache it for others to use */ + + _patterns.push_back (new FaderImage (pattern, fr, fg, fb, br, bg, bb, get_width(), get_height())); + + cairo_destroy (tc); + cairo_surface_destroy (surface); } bool @@ -169,71 +193,101 @@ PixFader::on_expose_event (GdkEventExpose* ev) if (!pattern) { create_patterns(); } - -// int const pi = get_sensitive() ? NORMAL : DESENSITISED; - - int ds = display_span (); - float w = get_width(); - float h = get_height(); - float radius = CORNER_RADIUS; + if (!pattern) { - /* black border */ + /* this isn't supposed to be happen, but some wackiness whereby + the pixfader ends up with a 1xN or Nx1 size allocation + leads to it. the basic wackiness needs fixing but we + shouldn't crash. just fill in the expose area with + our bg color. + */ - cairo_set_source_rgb (cr, 0,0,0); - cairo_rectangle (cr, 0, 0, w, h); - cairo_fill (cr); + Gdk::Color c = get_style()->get_bg (get_state()); + float br, bg, bb; - /* draw active box */ + br = c.get_red_p (); + bg = c.get_green_p (); + bb = c.get_blue_p (); + cairo_set_source_rgb (cr, br, bg, bb); + cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height); + cairo_fill (cr); + + return true; + } + + cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height); + cairo_clip (cr); + + int ds = display_span (); + float w = get_width(); + float h = get_height(); + + cairo_matrix_t matrix; if (_orien == VERT) { - if (ds > h - FADER_RESERVE) + + if (ds > h - FADER_RESERVE) { ds = h - FADER_RESERVE; + } cairo_set_source (cr, pattern); - Gtkmm2ext::rounded_rectangle (cr, 1, 1+ds, w-2, h-(1+ds)-1, radius-1.5); + cairo_matrix_init_translate (&matrix, 0, (h - ds)); + cairo_pattern_set_matrix (pattern, &matrix); + Gtkmm2ext::rounded_rectangle (cr, 0, 0, w, h, CORNER_RADIUS-1.5); cairo_fill (cr); -// cairo_set_source (cr, shine_pattern); -// Gtkmm2ext::rounded_rectangle (cr, 2, ds, w-4, h-(1+ds)-1, radius-1.5); -// cairo_fill (cr); } else { - if (ds < FADER_RESERVE) + + if (ds < FADER_RESERVE) { ds = FADER_RESERVE; + } + + /* + if ds == w, the pattern does not need to be translated + if ds == 0 (or FADER_RESERVE), the pattern needs to be moved + w to the left, which is -w in pattern space, and w in + user space + if ds == 10, then the pattern needs to be moved w - 10 + to the left, which is -(w-10) in pattern space, which + is (w - 10) in user space + + thus: translation = (w - ds) + */ cairo_set_source (cr, pattern); - Gtkmm2ext::rounded_rectangle (cr, 1, 1, ds-1, h-2, radius-1.5); + cairo_matrix_init_translate (&matrix, w - ds, 0); + cairo_pattern_set_matrix (pattern, &matrix); + Gtkmm2ext::rounded_rectangle (cr, 0, 0, w, h, CORNER_RADIUS-1.5); cairo_fill (cr); - -// cairo_set_source (cr, shine_pattern); -// Gtkmm2ext::rounded_rectangle (cr, 2, 3, ds-1, 15, radius-1.5); -// cairo_fill (cr); } - + /* draw the unity-position line if it's not at either end*/ if (unity_loc > 0) { - if ( _orien == VERT && unity_loc < h ) { + if ( _orien == VERT) { + if (unity_loc < h ) { context->set_line_width (1); context->set_source_rgb (0.0, 1.0, 0.0); context->move_to (1, unity_loc); - context->line_to (girth, unity_loc); - context->stroke (); - } else if ( unity_loc < w ){ - context->set_line_width (1); - context->set_source_rgb (0.0, 1.0, 0.0); - context->move_to (unity_loc, 1); - context->line_to (unity_loc, girth); + context->line_to (girth - 2.0, unity_loc); context->stroke (); + } + } else { + if ( unity_loc < w ){ + context->set_line_width (1); + context->set_source_rgb (0.0, 1.0, 0.0); + context->move_to (unity_loc, 1); + context->line_to (unity_loc, girth - 2.0); + context->stroke (); + } } } - - if ( !_text.empty() ) { - cairo_new_path (cr); + if ( !_text.empty() ) { /* center text */ + cairo_new_path (cr); cairo_move_to (cr, (get_width() - _text_width)/2.0, get_height()/2.0 - _text_height/2.0); - cairo_set_source_rgba (cr, text_r, text_g, text_b, 0.9); pango_cairo_show_layout (cr, _layout->gobj()); } @@ -241,7 +295,7 @@ PixFader::on_expose_event (GdkEventExpose* ev) // if (Config->get_widget_prelight()) { //pixfader does not have access to config if (_hovering) { Gtkmm2ext::rounded_rectangle (cr, 0, 0, get_width(), get_height(), 3); - cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2); + cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.1); cairo_fill (cr); } // } @@ -254,24 +308,34 @@ PixFader::on_expose_event (GdkEventExpose* ev) void PixFader::on_size_request (GtkRequisition* req) { - req->width = view.width; - req->height = view.height; + if (_orien == VERT) { + req->width = (girth ? girth : -1); + req->height = (span ? span : -1); + } else { + req->height = (girth ? girth : -1); + req->width = (span ? span : -1); + } } void PixFader::on_size_allocate (Gtk::Allocation& alloc) { DrawingArea::on_size_allocate(alloc); + if (_orien == VERT) { - view.height = span = alloc.get_height(); + girth = alloc.get_width (); + span = alloc.get_height (); } else { - view.width = span = alloc.get_width(); + girth = alloc.get_height (); + span = alloc.get_width (); + } + + if (is_realized()) { + /* recreate patterns in case we've changed size */ + create_patterns (); } update_unity_position (); - create_patterns(); - - queue_draw (); } bool @@ -290,6 +354,9 @@ PixFader::on_button_press_event (GdkEventButton* ev) grab_start = (_orien == VERT) ? ev->y : ev->x; grab_window = ev->window; dragging = true; + gdk_pointer_grab(ev->window,false, + GdkEventMask( Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK |Gdk::BUTTON_RELEASE_MASK), + NULL,NULL,ev->time); if (ev->button == 2) { set_adjustment_from_event (ev); @@ -308,6 +375,7 @@ PixFader::on_button_release_event (GdkEventButton* ev) if (dragging) { remove_modal_grab(); dragging = false; + gdk_pointer_ungrab (GDK_CURRENT_TIME); if (!_hovering) { Keyboard::magic_widget_drop_focus(); @@ -322,14 +390,14 @@ PixFader::on_button_release_event (GdkEventButton* ev) adjustment.set_value (default_value); } else if (ev->state & Keyboard::GainFineScaleModifier) { adjustment.set_value (adjustment.get_lower()); - } else if ((_orien == VERT && ev_pos < span - display_span()) || (_orien == HORIZ && ev_pos > span - display_span())) { + } else if ((_orien == VERT && ev_pos < display_span()) || (_orien == HORIZ && ev_pos > display_span())) { /* above the current display height, remember X Window coords */ adjustment.set_value (adjustment.get_value() + adjustment.get_step_increment()); } else { adjustment.set_value (adjustment.get_value() - adjustment.get_step_increment()); } } - + return true; } break; @@ -338,6 +406,8 @@ PixFader::on_button_release_event (GdkEventButton* ev) remove_modal_grab(); dragging = false; set_adjustment_from_event (ev); + gdk_pointer_ungrab (GDK_CURRENT_TIME); + return true; } break; @@ -470,27 +540,13 @@ PixFader::display_span () return ds; } -void -PixFader::set_fader_length (int l) -{ - if (_orien == VERT) { - view.height = span = l; - } else { - view.width = span = l; - } - - update_unity_position (); - - queue_draw (); -} - void PixFader::update_unity_position () { if (_orien == VERT) { - unity_loc = (int) rint (view.height * (1 - (default_value / (adjustment.get_upper() - adjustment.get_lower())))) - 1; + unity_loc = (int) rint (span * (1 - (default_value / (adjustment.get_upper() - adjustment.get_lower())))) - 1; } else { - unity_loc = (int) rint (default_value * view.width); + unity_loc = (int) rint (default_value * span / (adjustment.get_upper() - adjustment.get_lower())); } queue_draw (); @@ -545,8 +601,31 @@ PixFader::set_text (const std::string& str) if (_layout) { _layout->set_text (str); + _layout->get_pixel_size (_text_width, _text_height); } queue_resize (); } +void +PixFader::on_state_changed (Gtk::StateType old_state) +{ + Widget::on_state_changed (old_state); + create_patterns (); +} + +void +PixFader::on_style_changed (const Glib::RefPtr&) +{ + if (_layout) { + std::string txt = _layout->get_text(); + _layout.clear (); // drop reference to existing layout + set_text (txt); + } + + /* remember that all patterns are cached and not owned by an individual + pixfader. we will lazily create a new pattern when needed. + */ + + pattern = 0; +}