/*
- Copyright (C) 2006 Paul Davis
+ Copyright (C) 2006 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
#include <iostream>
-#include "gtkmm2ext/pixfader.h"
+#include <assert.h>
+
+#include "pbd/stacktrace.h"
+
+#include "gtkmm2ext/cairo_widget.h"
#include "gtkmm2ext/keyboard.h"
-#include "gtkmm2ext/rgb_macros.h"
+#include "gtkmm2ext/pixfader.h"
#include "gtkmm2ext/utils.h"
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace std;
-#define CORNER_RADIUS 4
-#define FADER_RESERVE (2*CORNER_RADIUS)
-
-PixFader::PixFader (
- Glib::RefPtr<Gdk::Pixbuf> belt,
- Glib::RefPtr<Gdk::Pixbuf> belt_desensitised,
- Gtk::Adjustment& adj,
- int orientation,
- int fader_length
- )
- : adjustment (adj),
- _orien(orientation)
+#define CORNER_RADIUS 2.5
+#define CORNER_SIZE 2
+#define CORNER_OFFSET 1
+#define FADER_RESERVE 6
+
+std::list<PixFader::FaderImage*> PixFader::_patterns;
+
+PixFader::PixFader (Gtk::Adjustment& adj, int orientation, int fader_length, int fader_girth)
+ : _layout (0)
+ , _tweaks (Tweaks(0))
+ , _adjustment (adj)
+ , _text_width (0)
+ , _text_height (0)
+ , _span (fader_length)
+ , _girth (fader_girth)
+ , _min_span (fader_length)
+ , _min_girth (fader_girth)
+ , _orien (orientation)
+ , _pattern (0)
+ , _hovering (false)
+ , _dragging (false)
+ , _centered_text (true)
+ , _current_parent (0)
{
-#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);
-
- 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;
- }
+ _default_value = _adjustment.get_value();
+ update_unity_position ();
- 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();
+ 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));
+ signal_grab_broken_event ().connect (mem_fun (*this, &PixFader::on_grab_broken_event));
+ if (_orien == VERT) {
+ CairoWidget::set_size_request(_girth, _span);
+ } else {
+ CairoWidget::set_size_request(_span, _girth);
}
-#endif
-
- left_r = 0;
- left_g = 0;
- left_b = 0;
-
- right_r = 0;
- right_g = 0;
- right_b = 0;
}
PixFader::~PixFader ()
{
+ if (_parent_style_change) _parent_style_change.disconnect();
+ if (_layout) _layout.clear (); // drop reference to existing layout
}
void
-PixFader::set_border_colors (uint32_t left, uint32_t right)
+PixFader::flush_pattern_cache () {
+ for (list<FaderImage*>::iterator f = _patterns.begin(); f != _patterns.end(); ++f) {
+ cairo_pattern_destroy ((*f)->pattern);
+ }
+ _patterns.clear();
+}
+
+
+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<FaderImage*>::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 ();
-
- 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);
+ float fr, fg, fb;
+ float br, bg, bb;
+
+ fr = c.get_red_p ();
+ fg = c.get_green_p ();
+ fb = c.get_blue_p ();
+
+ c = get_style()->get_bg (get_state());
- 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);
+ br = c.get_red_p ();
+ bg = c.get_green_p ();
+ bb = c.get_blue_p ();
+
+ cairo_surface_t* surface;
+ cairo_t* tc = 0;
+
+ if (get_width() <= 1 || get_height() <= 1) {
+ return;
}
- if ( !_text.empty()) {
- _layout->get_pixel_size (_text_width, _text_height);
+ 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*0.4,bg*0.4,bb*0.4, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0.25, br*0.6,bg*0.6,bb*0.6, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, br*0.8,bg*0.8,bb*0.8, 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 */
+
+ shade_pattern = cairo_pattern_create_linear (0.0, 0.0, get_width() - 2 - CORNER_OFFSET , 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, CORNER_OFFSET, get_height() + CORNER_OFFSET,
+ get_width() - CORNER_SIZE, get_height(), CORNER_RADIUS);
+ cairo_fill (tc);
+
+ cairo_pattern_destroy (shade_pattern);
+
+ _pattern = cairo_pattern_create_for_surface (surface);
+
} else {
- _text_width = 0;
- _text_height = 0;
+
+ 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*0.4,bg*0.4,bb*0.4, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0.25, br*0.6,bg*0.6,bb*0.6, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, br*0.8,bg*0.8,bb*0.8, 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, CORNER_OFFSET, CORNER_OFFSET,
+ get_width() - CORNER_OFFSET, get_height() - CORNER_SIZE, CORNER_RADIUS);
+ cairo_fill (tc);
+ cairo_pattern_destroy (shade_pattern);
+
+ _pattern = cairo_pattern_create_for_surface (surface);
}
- 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 ();
+
+ /* 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
-PixFader::on_expose_event (GdkEventExpose* ev)
+void
+PixFader::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t* area)
{
- Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
- cairo_t* cr = context->cobj();
+ cairo_t* cr = ctx->cobj();
- if (!pattern) {
+ 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) {
+ /* 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.
+ */
+
+ CairoWidget::set_source_rgb_a (cr, get_style()->get_bg (get_state()), 1);
+ cairo_rectangle (cr, area->x, area->y, area->width, area->height);
+ cairo_fill (cr);
+ return;
+ }
- /* black border */
+ OnExpose();
+ int ds = display_span ();
+ const float w = get_width();
+ const float h = get_height();
- cairo_set_source_rgb (cr, 0,0,0);
+ CairoWidget::set_source_rgb_a (cr, get_parent_bg(), 1);
cairo_rectangle (cr, 0, 0, w, h);
- cairo_fill (cr);
+ cairo_fill(cr);
+
+ cairo_set_line_width (cr, 2);
+ cairo_set_source_rgba (cr, 0, 0, 0, 1.0);
- /* draw active box */
+ cairo_matrix_t matrix;
+ Gtkmm2ext::rounded_rectangle (cr, CORNER_OFFSET, CORNER_OFFSET, w-CORNER_SIZE, h-CORNER_SIZE, CORNER_RADIUS);
+ // we use a 'trick' here: The stoke is off by .5px but filling the interior area
+ // after a stroke of 2px width results in an outline of 1px
+ cairo_stroke_preserve(cr);
if (_orien == VERT) {
- 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);
+ if (ds > h - FADER_RESERVE - CORNER_OFFSET) {
+ ds = h - FADER_RESERVE - CORNER_OFFSET;
+ }
+
+ if (!CairoWidget::flat_buttons() ) {
+ cairo_set_source (cr, _pattern);
+ cairo_matrix_init_translate (&matrix, 0, (h - ds));
+ cairo_pattern_set_matrix (_pattern, &matrix);
+ } else {
+ CairoWidget::set_source_rgb_a (cr, get_style()->get_bg (get_state()), 1);
+ cairo_fill (cr);
+ CairoWidget::set_source_rgb_a (cr, get_style()->get_fg (get_state()), 1);
+ Gtkmm2ext::rounded_rectangle (cr, CORNER_OFFSET, ds + CORNER_OFFSET,
+ w - CORNER_SIZE, h - ds - CORNER_SIZE, CORNER_RADIUS);
+ }
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)
- ds = FADER_RESERVE;
- cairo_set_source (cr, pattern);
- Gtkmm2ext::rounded_rectangle (cr, 1, 1, ds-1, h-2, radius-1.5);
+ if (ds < FADER_RESERVE) {
+ ds = FADER_RESERVE;
+ }
+ assert(ds <= w);
+
+ /*
+ * 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)
+ */
+
+ if (!CairoWidget::flat_buttons() ) {
+ cairo_set_source (cr, _pattern);
+ cairo_matrix_init_translate (&matrix, w - ds, 0);
+ cairo_pattern_set_matrix (_pattern, &matrix);
+ } else {
+ CairoWidget::set_source_rgb_a (cr, get_style()->get_bg (get_state()), 1);
+ cairo_fill (cr);
+ CairoWidget::set_source_rgb_a (cr, get_style()->get_fg (get_state()), 1);
+ Gtkmm2ext::rounded_rectangle (cr, CORNER_OFFSET, CORNER_OFFSET,
+ ds - CORNER_SIZE, h - CORNER_SIZE, CORNER_RADIUS);
+ }
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 ) {
- 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->stroke ();
+ if (!(_tweaks & NoShowUnityLine) && _unity_loc > CORNER_RADIUS) {
+ cairo_set_line_width(cr, 1);
+ cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
+ Gdk::Color c = get_style()->get_fg (Gtk::STATE_ACTIVE);
+ cairo_set_source_rgba (cr, c.get_red_p() * 1.5, c.get_green_p() * 1.5, c.get_blue_p() * 1.5, 0.85);
+ if (_orien == VERT) {
+ if (_unity_loc < h - CORNER_RADIUS) {
+ cairo_move_to (cr, 1.5, _unity_loc + CORNER_OFFSET + .5);
+ cairo_line_to (cr, _girth - 1.5, _unity_loc + CORNER_OFFSET + .5);
+ cairo_stroke (cr);
+ }
+ } else {
+ if (_unity_loc < w - CORNER_RADIUS) {
+ cairo_move_to (cr, _unity_loc - CORNER_OFFSET + .5, 1.5);
+ cairo_line_to (cr, _unity_loc - CORNER_OFFSET + .5, _girth - 1.5);
+ cairo_stroke (cr);
+ }
}
}
-
- if ( !_text.empty() ) {
-
- cairo_new_path (cr);
- /* center text */
- 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());
- }
-
-// 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_fill (cr);
+ if (_layout && !_text.empty() && _orien == HORIZ) {
+ cairo_save (cr);
+ if (_centered_text) {
+ /* center text */
+ cairo_move_to (cr, (w - _text_width)/2.0, h/2.0 - _text_height/2.0);
+ } else if (ds > .5 * w) {
+ cairo_move_to (cr, CORNER_OFFSET + 3, h/2.0 - _text_height/2.0);
+ cairo_set_operator(cr, CAIRO_OPERATOR_XOR);
+ } else {
+ cairo_move_to (cr, w - _text_width - CORNER_OFFSET - 3, h/2.0 - _text_height/2.0);
}
-// }
-
- last_drawn = ds;
+ CairoWidget::set_source_rgb_a (cr, get_style()->get_text (get_state()), 1);
+ pango_cairo_show_layout (cr, _layout->gobj());
+ cairo_restore (cr);
+ }
- return true;
+ if (!get_sensitive()) {
+ Gtkmm2ext::rounded_rectangle (cr, CORNER_OFFSET, CORNER_OFFSET, w-CORNER_SIZE, h-CORNER_SIZE, CORNER_RADIUS);
+ cairo_set_source_rgba (cr, 0.505, 0.517, 0.525, 0.4);
+ cairo_fill (cr);
+ } else if (_hovering && CairoWidget::widget_prelight()) {
+ Gtkmm2ext::rounded_rectangle (cr, CORNER_OFFSET, CORNER_OFFSET, w-CORNER_SIZE, h-CORNER_SIZE, CORNER_RADIUS);
+ cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.1);
+ cairo_fill (cr);
+ }
}
void
PixFader::on_size_request (GtkRequisition* req)
{
- req->width = view.width;
- req->height = view.height;
+ if (_orien == VERT) {
+ req->width = (_min_girth ? _min_girth : -1);
+ req->height = (_min_span ? _min_span : -1);
+ } else {
+ req->height = (_min_girth ? _min_girth : -1);
+ req->width = (_min_span ? _min_span : -1);
+ }
}
void
PixFader::on_size_allocate (Gtk::Allocation& alloc)
{
- DrawingArea::on_size_allocate(alloc);
+ int old_girth = _girth;
+ int old_span = _span;
+
+ CairoWidget::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() && ((old_girth != _girth) || (old_span != _span))) {
+ /* recreate patterns in case we've changed size */
+ create_patterns ();
}
update_unity_position ();
- create_patterns();
-
- queue_draw ();
+}
+
+bool
+PixFader::on_grab_broken_event (GdkEventGrabBroken* ev)
+{
+ if (_dragging) {
+ remove_modal_grab();
+ _dragging = false;
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ StopGesture ();
+ }
+ return (_tweaks & NoButtonForward) ? true : false;
}
bool
PixFader::on_button_press_event (GdkEventButton* ev)
{
if (ev->type != GDK_BUTTON_PRESS) {
- return true;
+ if (_dragging) {
+ remove_modal_grab();
+ _dragging = false;
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ StopGesture ();
+ }
+ return (_tweaks & NoButtonForward) ? true : false;
}
if (ev->button != 1 && ev->button != 2) {
}
add_modal_grab ();
- grab_loc = (_orien == VERT) ? ev->y : ev->x;
- grab_start = (_orien == VERT) ? ev->y : ev->x;
- grab_window = ev->window;
- dragging = true;
+ StartGesture ();
+ _grab_loc = (_orien == VERT) ? ev->y : ev->x;
+ _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);
}
-
- return true;
+
+ return (_tweaks & NoButtonForward) ? true : false;
}
bool
PixFader::on_button_release_event (GdkEventButton* ev)
{
- double const ev_pos = (_orien == VERT) ? ev->y : ev->x;
-
+ double ev_pos = (_orien == VERT) ? ev->y : ev->x;
+
switch (ev->button) {
case 1:
- if (dragging) {
+ if (_dragging) {
remove_modal_grab();
- dragging = false;
+ _dragging = false;
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ StopGesture ();
if (!_hovering) {
- Keyboard::magic_widget_drop_focus();
+ if (!(_tweaks & NoVerticalScroll)) {
+ Keyboard::magic_widget_drop_focus();
+ }
queue_draw ();
}
- if (ev_pos == grab_start) {
-
+ if (ev_pos == _grab_start) {
/* no motion - just a click */
+ ev_pos = rint(ev_pos);
if (ev->state & Keyboard::TertiaryModifier) {
- adjustment.set_value (default_value);
+ _adjustment.set_value (_default_value);
} else if (ev->state & Keyboard::GainFineScaleModifier) {
- adjustment.set_value (adjustment.get_lower());
- } else if ((_orien == VERT && ev_pos < display_span()) || (_orien == HORIZ && ev_pos > display_span())) {
+ _adjustment.set_value (_adjustment.get_lower());
+#if 0 // ignore clicks
+ } else if (ev_pos == slider_pos) {
+ ; // click on current position, no move.
+ } else if ((_orien == VERT && ev_pos < slider_pos) || (_orien == HORIZ && ev_pos > slider_pos)) {
/* above the current display height, remember X Window coords */
- adjustment.set_value (adjustment.get_value() + adjustment.get_step_increment());
+ _adjustment.set_value (_adjustment.get_value() + _adjustment.get_step_increment());
} else {
- adjustment.set_value (adjustment.get_value() - adjustment.get_step_increment());
+ _adjustment.set_value (_adjustment.get_value() - _adjustment.get_step_increment());
+#endif
}
}
-
- }
+ return true;
+ }
break;
-
+
case 2:
- if (dragging) {
+ if (_dragging) {
remove_modal_grab();
- dragging = false;
+ _dragging = false;
+ StopGesture ();
set_adjustment_from_event (ev);
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ return true;
}
break;
default:
break;
}
-
return false;
}
if (ev->state & Keyboard::GainFineScaleModifier) {
if (ev->state & Keyboard::GainExtraFineScaleModifier) {
- scale = 0.01;
+ scale = 0.005;
} else {
- scale = 0.05;
+ scale = 0.1;
}
} else {
- scale = 0.25;
+ scale = 1.0;
}
if (_orien == VERT) {
-
- /* should left/right scroll affect vertical faders ? */
-
switch (ev->direction) {
-
- case GDK_SCROLL_UP:
- adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
- ret = true;
- break;
- case GDK_SCROLL_DOWN:
- adjustment.set_value (adjustment.get_value() - (adjustment.get_page_increment() * scale));
- ret = true;
- break;
- default:
- break;
+ case GDK_SCROLL_UP:
+ _adjustment.set_value (_adjustment.get_value() + (_adjustment.get_page_increment() * scale));
+ ret = true;
+ break;
+ case GDK_SCROLL_DOWN:
+ _adjustment.set_value (_adjustment.get_value() - (_adjustment.get_page_increment() * scale));
+ ret = true;
+ break;
+ default:
+ break;
}
} else {
+ int dir = ev->direction;
- /* up/down scrolls should definitely affect horizontal faders
- because they are so much easier to use
- */
-
- switch (ev->direction) {
+ if (ev->state & Keyboard::ScrollHorizontalModifier || !(_tweaks & NoVerticalScroll)) {
+ if (ev->direction == GDK_SCROLL_UP) dir = GDK_SCROLL_RIGHT;
+ if (ev->direction == GDK_SCROLL_DOWN) dir = GDK_SCROLL_LEFT;
+ }
- case GDK_SCROLL_RIGHT:
- case GDK_SCROLL_UP:
- adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
- ret = true;
- break;
- case GDK_SCROLL_LEFT:
- case GDK_SCROLL_DOWN:
- adjustment.set_value (adjustment.get_value() - (adjustment.get_page_increment() * scale));
- ret = true;
- break;
- default:
- break;
+ switch (dir) {
+ case GDK_SCROLL_RIGHT:
+ _adjustment.set_value (_adjustment.get_value() + (_adjustment.get_page_increment() * scale));
+ ret = true;
+ break;
+ case GDK_SCROLL_LEFT:
+ _adjustment.set_value (_adjustment.get_value() - (_adjustment.get_page_increment() * scale));
+ ret = true;
+ break;
+ default:
+ break;
}
}
return ret;
bool
PixFader::on_motion_notify_event (GdkEventMotion* ev)
{
- if (dragging) {
+ if (_dragging) {
double scale = 1.0;
double const ev_pos = (_orien == VERT) ? ev->y : ev->x;
-
- if (ev->window != grab_window) {
- grab_loc = ev_pos;
- grab_window = ev->window;
+
+ if (ev->window != _grab_window) {
+ _grab_loc = ev_pos;
+ _grab_window = ev->window;
return true;
}
-
+
if (ev->state & Keyboard::GainFineScaleModifier) {
if (ev->state & Keyboard::GainExtraFineScaleModifier) {
- scale = 0.05;
+ scale = 0.005;
} else {
scale = 0.1;
}
}
- double const delta = ev_pos - grab_loc;
- grab_loc = ev_pos;
+ double const delta = ev_pos - _grab_loc;
+ _grab_loc = ev_pos;
+ const double off = FADER_RESERVE + ((_orien == VERT) ? CORNER_OFFSET : 0);
+ const double span = _span - off;
double fract = (delta / span);
fract = min (1.0, fract);
fract = max (-1.0, fract);
// X Window is top->bottom for 0..Y
-
+
if (_orien == VERT) {
fract = -fract;
}
- adjustment.set_value (adjustment.get_value() + scale * fract * (adjustment.get_upper() - adjustment.get_lower()));
+ _adjustment.set_value (_adjustment.get_value() + scale * fract * (_adjustment.get_upper() - _adjustment.get_lower()));
}
return true;
void
PixFader::adjustment_changed ()
{
- if (display_span() != last_drawn) {
- queue_draw ();
- }
+ queue_draw ();
}
/** @return pixel offset of the current value from the right or bottom of the fader */
int
PixFader::display_span ()
{
- float fract = (adjustment.get_value () - adjustment.get_lower()) / ((adjustment.get_upper() - adjustment.get_lower()));
+ float fract = (_adjustment.get_value () - _adjustment.get_lower()) / ((_adjustment.get_upper() - _adjustment.get_lower()));
int ds;
if (_orien == VERT) {
- ds = (int)floor ( span * (1.0 - fract));
- } else {
- ds = (int)floor (span * fract);
- }
-
- return ds;
-}
-
-void
-PixFader::set_fader_length (int l)
-{
- if (_orien == VERT) {
- view.height = span = l;
+ const double off = FADER_RESERVE + CORNER_OFFSET;
+ const double span = _span - off;
+ ds = (int)rint (span * (1.0 - fract));
} else {
- view.width = span = l;
+ const double off = FADER_RESERVE;
+ const double span = _span - off;
+ ds = (int)rint (span * fract + off);
}
- update_unity_position ();
-
- queue_draw ();
+ return ds;
}
void
PixFader::update_unity_position ()
{
if (_orien == VERT) {
- unity_loc = (int) rint (view.height * (1 - (default_value / (adjustment.get_upper() - adjustment.get_lower())))) - 1;
+ const double span = _span - FADER_RESERVE - CORNER_OFFSET;
+ _unity_loc = (int) rint (span * (1 - ((_default_value - _adjustment.get_lower()) / (_adjustment.get_upper() - _adjustment.get_lower())))) - 1;
} else {
- unity_loc = (int) rint (default_value * view.width);
+ const double span = _span - FADER_RESERVE;
+ _unity_loc = (int) rint (FADER_RESERVE + (_default_value - _adjustment.get_lower()) * span / (_adjustment.get_upper() - _adjustment.get_lower()));
}
queue_draw ();
PixFader::on_enter_notify_event (GdkEventCrossing*)
{
_hovering = true;
- Keyboard::magic_widget_grab_focus ();
+ if (!(_tweaks & NoVerticalScroll)) {
+ Keyboard::magic_widget_grab_focus ();
+ }
queue_draw ();
return false;
}
bool
PixFader::on_leave_notify_event (GdkEventCrossing*)
{
- if (!dragging) {
+ if (!_dragging) {
_hovering = false;
- Keyboard::magic_widget_drop_focus();
+ if (!(_tweaks & NoVerticalScroll)) {
+ Keyboard::magic_widget_drop_focus();
+ }
queue_draw ();
}
return false;
void
PixFader::set_adjustment_from_event (GdkEventButton* ev)
{
- double fract = (_orien == VERT) ? (1.0 - (ev->y / span)) : (ev->x / span);
+ const double off = FADER_RESERVE + ((_orien == VERT) ? CORNER_OFFSET : 0);
+ const double span = _span - off;
+ double fract = (_orien == VERT) ? (1.0 - ((ev->y - off) / span)) : ((ev->x - off) / span);
fract = min (1.0, fract);
fract = max (0.0, fract);
- adjustment.set_value (fract * (adjustment.get_upper () - adjustment.get_lower ()));
+ _adjustment.set_value (fract * (_adjustment.get_upper () - _adjustment.get_lower ()));
}
void
PixFader::set_default_value (float d)
{
- default_value = d;
+ _default_value = d;
update_unity_position ();
}
void
-PixFader::set_text (const std::string& str)
+PixFader::set_tweaks (Tweaks t)
{
- _text = str;
+ bool need_redraw = false;
+ if ((_tweaks & NoShowUnityLine) ^ (t & NoShowUnityLine)) {
+ need_redraw = true;
+ }
+ _tweaks = t;
+ if (need_redraw) {
+ queue_draw();
+ }
+}
- if (!_layout && !_text.empty()) {
+void
+PixFader::set_text (const std::string& str, bool centered, bool expose)
+{
+ if (_layout && _text == str) {
+ return;
+ }
+ if (!_layout && !str.empty()) {
_layout = Pango::Layout::create (get_pango_context());
- }
+ }
+ _text = str;
+ _centered_text = centered;
if (_layout) {
_layout->set_text (str);
+ _layout->get_pixel_size (_text_width, _text_height);
+ // queue_resize ();
+ if (expose) queue_draw ();
}
+}
- queue_resize ();
+void
+PixFader::on_state_changed (Gtk::StateType old_state)
+{
+ Widget::on_state_changed (old_state);
+ create_patterns ();
+ queue_draw ();
+}
+
+void
+PixFader::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
+{
+ if (_layout) {
+ std::string txt = _layout->get_text();
+ _layout.clear (); // drop reference to existing layout
+ _text = "";
+ set_text (txt, _centered_text, false);
+ }
+ /* patterns are cached and re-created as needed
+ * during 'expose' in the GUI thread */
+ _pattern = 0;
+ queue_draw ();
}
+Gdk::Color
+PixFader::get_parent_bg ()
+{
+ Widget* parent = get_parent ();
+
+ while (parent) {
+ if (parent->get_has_window()) {
+ break;
+ }
+ parent = parent->get_parent();
+ }
+
+ if (parent && parent->get_has_window()) {
+ if (_current_parent != parent) {
+ if (_parent_style_change) _parent_style_change.disconnect();
+ _current_parent = parent;
+ _parent_style_change = parent->signal_style_changed().connect (mem_fun (*this, &PixFader::on_style_changed));
+ }
+ return parent->get_style ()->get_bg (parent->get_state());
+ }
+
+ return get_style ()->get_bg (get_state());
+}
projects / ardour.git / blobdiff