ardour/ardour
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Standardize drawing of PixFader and BarController; implement flat_buttons and prelight.

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Prepare for using Controllable interfaces, instead of passing in Adjustments.
ToDo:  reimplement image caching in a standardized way across widgets
This commit is contained in:
Ben Loftis 2014-08-27 11:58:09 -05:00
parent fad9068981
commit d439e93b1e
6 changed files with 263 additions and 442 deletions
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1
gtk2_ardour/level_meter.cc
View File

@ -22,7 +22,6 @@
#include "ardour/meter.h"
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/barcontroller.h>
#include "pbd/fastlog.h"
#include "ardour_ui.h"

1
gtk2_ardour/panner_ui.cc
View File

@ -19,7 +19,6 @@
#include <limits.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/barcontroller.h>
#include "pbd/fastlog.h"

314
libs/gtkmm2ext/barcontroller.cc
View File

@ -31,6 +31,7 @@
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/keyboard.h"
#include "gtkmm2ext/barcontroller.h"
#include "gtkmm2ext/cairo_widget.h"
#include "i18n.h"
@ -41,10 +42,10 @@ using namespace Gtkmm2ext;
BarController::BarController (Gtk::Adjustment& adj,
boost::shared_ptr<PBD::Controllable> mc)
: adjustment (adj),
binding_proxy (mc),
spinner (adjustment)
: adjustment (adj)
, binding_proxy (mc)
, _hovering (false)
, spinner (adjustment)
{
_style = LeftToRight;
grabbed = false;
@ -74,6 +75,8 @@ BarController::BarController (Gtk::Adjustment& adj,
darea.signal_button_press_event().connect (mem_fun (*this, &BarController::button_press), false);
darea.signal_button_release_event().connect (mem_fun (*this, &BarController::button_release), false);
darea.signal_scroll_event().connect (mem_fun (*this, &BarController::scroll));
darea.signal_enter_notify_event().connect (mem_fun (*this, &BarController::on_enter_notify_event));
darea.signal_leave_notify_event().connect (mem_fun (*this, &BarController::on_leave_notify_event));
spinner.signal_activate().connect (mem_fun (*this, &BarController::entry_activated));
spinner.signal_focus_out_event().connect (mem_fun (*this, &BarController::entry_focus_out));
@ -89,8 +92,24 @@ BarController::BarController (Gtk::Adjustment& adj,
BarController::~BarController ()
{
// delete pattern;
// delete shine_pattern;
}
bool
BarController::on_enter_notify_event (GdkEventCrossing*)
{
_hovering = true;
Keyboard::magic_widget_grab_focus ();
queue_draw ();
return false;
}
bool
BarController::on_leave_notify_event (GdkEventCrossing*)
{
_hovering = false;
Keyboard::magic_widget_drop_focus();
queue_draw ();
return false;
}
void
@ -270,36 +289,34 @@ BarController::mouse_control (double x, GdkWindow* window, double scaling)
return TRUE;
}
void
BarController::create_patterns ()
Gdk::Color
BarController::get_parent_bg ()
{
Glib::RefPtr<Gdk::Window> win (darea.get_window());
Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
Widget* parent;
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 ();
parent = get_parent ();
float rheight = darea.get_height()-2;
while (parent) {
static const char* has_cairo_widget_background_info = "has_cairo_widget_background_info";
void* p = g_object_get_data (G_OBJECT(parent->gobj()), has_cairo_widget_background_info);
cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, rheight);
cairo_pattern_add_color_stop_rgba (pat, 0, r*0.8,g*0.8,b*0.8, 1.0);
cairo_pattern_add_color_stop_rgba (pat, 1, r*0.6,g*0.6,b*0.6, 1.0);
Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (pat, false));
pattern = p;
cairo_pattern_destroy(pat);
if (p) {
Glib::RefPtr<Gtk::Style> style = parent->get_style();
return style->get_bg (get_state());
}
if (!parent->get_has_window()) {
parent = parent->get_parent();
} else {
break;
}
}
pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, rheight);
cairo_pattern_add_color_stop_rgba (pat, 0, 1,1,1,0.0);
cairo_pattern_add_color_stop_rgba (pat, 0.2, 1,1,1,0.3);
cairo_pattern_add_color_stop_rgba (pat, 0.5, 1,1,1,0.0);
cairo_pattern_add_color_stop_rgba (pat, 1, 1,1,1,0.0);
Cairo::RefPtr<Cairo::Pattern> p2 (new Cairo::Pattern (pat, false));
shine_pattern = p2;
cairo_pattern_destroy(pat);
if (parent && parent->get_has_window()) {
return parent->get_style ()->get_bg (parent->get_state());
}
return get_style ()->get_bg (get_state());
}
bool
@ -307,157 +324,37 @@ BarController::expose (GdkEventExpose* /*event*/)
{
Glib::RefPtr<Gdk::Window> win (darea.get_window());
Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
cairo_t* cr = context->cobj();
if( !pattern )
create_patterns();
Gdk::Color fg_col = get_style()->get_fg (get_state());
Gdk::Color c;
Widget* parent;
gint x1=0, x2=0, y2=0;
gint w, h;
double fract, radius;
float r, g, b;
fract = ((adjustment.get_value() - adjustment.get_lower()) /
double fract = ((adjustment.get_value() - adjustment.get_lower()) /
(adjustment.get_upper() - adjustment.get_lower()));
gint w = darea.get_width() ;
gint h = darea.get_height();
gint bar_start, bar_width;
double radius = 4;
switch (_style) {
case Line:
w = darea.get_width() - 1;
h = darea.get_height();
x1 = (gint) floor (w * fract);
x2 = x1;
y2 = h - 1;
if (use_parent) {
parent = get_parent();
if (parent) {
c = parent->get_style()->get_fg (parent->get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->rectangle (0, 0, darea.get_width(), darea.get_height());
context->fill ();
}
} else {
c = get_style()->get_bg (get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->rectangle (0, 0, darea.get_width() - ((darea.get_width()+1) % 2), darea.get_height());
context->fill ();
}
c = get_style()->get_fg (get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->move_to (x1, 0);
context->line_to (x1, h);
context->stroke ();
bar_start = (gint) floor ((w-1) * fract);
bar_width = 1;
break;
case Blob:
w = darea.get_width() - 1;
h = darea.get_height();
x1 = (gint) floor (w * fract);
x2 = min (w-2,h-2);
if (use_parent) {
parent = get_parent();
if (parent) {
c = parent->get_style()->get_fg (parent->get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->rectangle (0, 0, darea.get_width(), darea.get_height());
context->fill ();
}
} else {
c = get_style()->get_bg (get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->rectangle (0, 0, darea.get_width() - ((darea.get_width()+1) % 2), darea.get_height());
context->fill ();
}
c = get_style()->get_fg (get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->arc (x1, ((h-2)/2)-1, x2, 0, 2*M_PI);
case Blob:
// ????
break;
case CenterOut:
w = darea.get_width();
h = darea.get_height()-2;
if (use_parent) {
parent = get_parent();
if (parent) {
c = parent->get_style()->get_fg (parent->get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->rectangle (0, 0, darea.get_width(), darea.get_height());
context->fill ();
}
} else {
c = get_style()->get_bg (get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
context->set_source_rgb (r, g, b);
context->rectangle (0, 0, darea.get_width(), darea.get_height());
context->fill ();
}
c = get_style()->get_fg (get_state());
r = c.get_red_p ();
g = c.get_green_p ();
b = c.get_blue_p ();
x1 = (w/2) - ((w*fract)/2); // center, back up half the bar width
context->set_source_rgb (r, g, b);
context->rectangle (x1, 1, w*fract, h);
context->fill ();
break;
bar_width = (w*fract);
bar_start = (w/2) - bar_width/2; // center, back up half the bar width
break;
case LeftToRight:
bar_start = 1;
bar_width = floor((w-2)*fract);
w = darea.get_width() - 2;
h = darea.get_height() - 2;
x2 = (gint) floor (w * fract);
y2 = h;
radius = 4;
if (x2 < 8) x2 = 8;
/* border */
context->set_source_rgb (0,0,0);
cairo_rectangle (context->cobj(), 0, 0, darea.get_width(), darea.get_height());
context->fill ();
/* draw active box */
context->set_source (pattern);
rounded_rectangle (context, 1, 1, x2, y2, radius-1.5);
context->fill ();
// context->set_source (shine_pattern);
// rounded_rectangle (context, 2, 3, x2-2, y2-8, radius-2);
// context->fill ();
break;
case RightToLeft:
@ -468,10 +365,85 @@ BarController::expose (GdkEventExpose* /*event*/)
break;
}
//fill in the bg rect ...
Gdk::Color c = get_parent_bg(); //get_style()->get_bg (Gtk::STATE_PRELIGHT); //why prelight? Shouldn't we be using the parent's color? maybe get_parent_bg ?
CairoWidget::set_source_rgb_a (cr, c);
cairo_rectangle (cr, 0, 0, w, h);
cairo_fill(cr);
//"slot"
cairo_set_source_rgba (cr, 0.17, 0.17, 0.17, 1.0);
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, radius-0.5);
cairo_fill(cr);
//mask off the corners
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, radius-0.5);
cairo_clip(cr);
//background gradient
if ( !CairoWidget::flat_buttons() ) {
cairo_pattern_t *bg_gradient = cairo_pattern_create_linear (0.0, 0.0, 0, h);
cairo_pattern_add_color_stop_rgba (bg_gradient, 0, 0, 0, 0, 0.4);
cairo_pattern_add_color_stop_rgba (bg_gradient, 0.2, 0, 0, 0, 0.2);
cairo_pattern_add_color_stop_rgba (bg_gradient, 1, 0, 0, 0, 0.0);
cairo_set_source (cr, bg_gradient);
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, radius-1.5);
cairo_fill (cr);
cairo_pattern_destroy(bg_gradient);
}
//fg color
CairoWidget::set_source_rgb_a (cr, fg_col, 1.0);
Gtkmm2ext::rounded_rectangle (cr, bar_start, 1, bar_width, h-2, radius - 1.5);
cairo_fill(cr);
//fg gradient
if (!CairoWidget::flat_buttons() ) {
cairo_pattern_t * fg_gradient = cairo_pattern_create_linear (0.0, 0.0, 0, h);
cairo_pattern_add_color_stop_rgba (fg_gradient, 0, 0, 0, 0, 0.0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 0.1, 0, 0, 0, 0.0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 1, 0, 0, 0, 0.3);
cairo_set_source (cr, fg_gradient);
Gtkmm2ext::rounded_rectangle (cr, bar_start, 1, bar_width, h-2, radius - 1.5);
cairo_fill (cr);
cairo_pattern_destroy(fg_gradient);
}
cairo_reset_clip(cr);
//black border
cairo_set_line_width (cr, 1.0);
cairo_set_source_rgba (cr, 0, 0, 0, 1.0);
Gtkmm2ext::rounded_rectangle (cr, 0.5, 0.5, w-1, h-1, radius);
cairo_stroke(cr);
/* draw the unity-position line if it's not at either end*/
/* if (unity_loc > 0) {
context->set_line_width (1);
cairo_set_source_rgba (cr, 1,1,1, 1.0);
if ( _orien == VERT) {
if (unity_loc < h ) {
context->move_to (2.5, unity_loc + radius + .5);
context->line_to (girth-2.5, unity_loc + radius + .5);
context->stroke ();
}
} else {
if ( unity_loc < w ){
context->move_to (unity_loc - radius + .5, 3.5);
context->line_to (unity_loc - radius + .5, girth-3.5);
context->stroke ();
}
}
}*/
if (!darea.get_sensitive()) {
rounded_rectangle (context, 0, 0, darea.get_width(), darea.get_height(), 3);
context->set_source_rgba (0.505, 0.517, 0.525, 0.6);
context->fill ();
} else if (_hovering) {
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, radius);
cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.1);
cairo_fill (cr);
}
/* draw label */
@ -479,7 +451,7 @@ BarController::expose (GdkEventExpose* /*event*/)
double xpos = -1;
std::string const label = get_label (xpos);
if (!label.empty()) {
/* if (!label.empty()) {
layout->set_text (label);
@ -490,8 +462,8 @@ BarController::expose (GdkEventExpose* /*event*/)
x = max (3, 1 + (x2 - (width/2)));
x = min (darea.get_width() - width - 3, (int) lrint (xpos));
} else {
x = lrint (darea.get_width() * xpos);
}
x = lrint (darea.get_width() * xpos);
}
c = get_style()->get_text (get_state());
r = c.get_red_p ();
@ -500,7 +472,7 @@ BarController::expose (GdkEventExpose* /*event*/)
context->set_source_rgb (r, g, b);
context->move_to (x, (darea.get_height()/2) - (height/2));
layout->show_in_cairo_context (context);
}
}*/
return true;
}

11
libs/gtkmm2ext/gtkmm2ext/barcontroller.h
View File

@ -91,19 +91,19 @@ class LIBGTKMM2EXT_API BarController : public Gtk::Frame
return "";
}
void create_patterns();
Cairo::RefPtr<Cairo::Pattern> pattern;
Cairo::RefPtr<Cairo::Pattern> shine_pattern;
virtual bool button_press (GdkEventButton *);
virtual bool button_release (GdkEventButton *);
virtual bool motion (GdkEventMotion *);
virtual bool expose (GdkEventExpose *);
virtual bool scroll (GdkEventScroll *);
virtual bool entry_focus_out (GdkEventFocus*);
bool on_enter_notify_event (GdkEventCrossing* ev);
bool on_leave_notify_event (GdkEventCrossing* ev);
gint mouse_control (double x, GdkWindow* w, double scaling);
Gdk::Color get_parent_bg ();
gint switch_to_bar ();
gint switch_to_spinner ();
@ -112,6 +112,9 @@ class LIBGTKMM2EXT_API BarController : public Gtk::Frame
int entry_input (double* new_value);
bool entry_output ();
bool _hovering;
};

60
libs/gtkmm2ext/gtkmm2ext/pixfader.h
View File

@ -45,9 +45,6 @@ class LIBGTKMM2EXT_API PixFader : public Gtk::DrawingArea
std::string _text;
int _text_width;
int _text_height;
double text_r;
double text_g;
double text_b;
Gtk::Adjustment& adjustment;
@ -61,8 +58,9 @@ class LIBGTKMM2EXT_API PixFader : public Gtk::DrawingArea
bool on_scroll_event (GdkEventScroll* ev);
bool on_enter_notify_event (GdkEventCrossing* ev);
bool on_leave_notify_event (GdkEventCrossing* ev);
void on_state_changed (Gtk::StateType);
void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
void on_state_changed (Gtk::StateType);
void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
enum Orientation {
VERT,
@ -72,52 +70,9 @@ class LIBGTKMM2EXT_API PixFader : public Gtk::DrawingArea
private:
int span, girth;
int _orien;
cairo_pattern_t* pattern;
struct FaderImage {
cairo_pattern_t* pattern;
double fr;
double fg;
double fb;
double br;
double bg;
double bb;
int width;
int height;
FaderImage (cairo_pattern_t* p,
double afr, double afg, double afb,
double abr, double abg, double abb,
int w, int h)
: pattern (p)
, fr (afr)
, fg (afg)
, fb (afb)
, br (abr)
, bg (abg)
, bb (abb)
, width (w)
, height (h)
{}
bool matches (double afr, double afg, double afb,
double abr, double abg, double abb,
int w, int h) {
return width == w &&
height == h &&
afr == fr &&
afg == fg &&
afb == fb &&
abr == br &&
abg == bg &&
abb == bb;
}
};
static std::list<FaderImage*> _patterns;
static cairo_pattern_t* find_pattern (double afr, double afg, double afb,
double abr, double abg, double abb,
int w, int h);
cairo_pattern_t* fg_gradient;
cairo_pattern_t* bg_gradient;
bool _hovering;
@ -130,10 +85,9 @@ class LIBGTKMM2EXT_API PixFader : public Gtk::DrawingArea
int unity_loc;
void adjustment_changed ();
int display_span ();
float display_span ();
void set_adjustment_from_event (GdkEventButton *);
void update_unity_position ();
void create_patterns();
};

318
libs/gtkmm2ext/pixfader.cc
View File

@ -27,6 +27,7 @@
#include "gtkmm2ext/keyboard.h"
#include "gtkmm2ext/rgb_macros.h"
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/cairo_widget.h"
using namespace Gtkmm2ext;
using namespace Gtk;
@ -37,18 +38,18 @@ using namespace std;
#define CORNER_OFFSET 1
#define FADER_RESERVE 5
std::list<PixFader::FaderImage*> 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)
{
bg_gradient = 0;
fg_gradient = 0;
default_value = adjustment.get_value();
update_unity_position ();
@ -68,239 +69,149 @@ PixFader::~PixFader ()
{
}
cairo_pattern_t*
PixFader::find_pattern (double afr, double afg, double afb,
double abr, double abg, double abb,
int w, int h)
{
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 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());
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);
} else {
_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;
if (get_width() <= 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 */
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 {
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, 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);
}
/* 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)
{
Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
cairo_t* cr = context->cobj();
if (!pattern) {
create_patterns();
}
Gdk::Color fg_col = get_style()->get_fg (get_state());
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.
*/
Gdk::Color c = get_style()->get_bg (get_state());
float br, bg, bb;
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 ds = display_span ();
float w = get_width();
float h = get_height();
Gdk::Color c = get_style()->get_bg (Gtk::STATE_PRELIGHT);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
//fill in the bg rect ...
Gdk::Color c = get_style()->get_bg (Gtk::STATE_PRELIGHT); //why prelight? Shouldn't we be using the parent's color?
CairoWidget::set_source_rgb_a (cr, c);
cairo_rectangle (cr, 0, 0, w, h);
cairo_fill(cr);
cairo_set_line_width (cr, 1);
cairo_set_source_rgba (cr, 0, 0, 0, 1.0);
cairo_matrix_t matrix;
Gtkmm2ext::rounded_rectangle (cr, CORNER_OFFSET, CORNER_OFFSET, w-CORNER_SIZE, h-CORNER_SIZE, CORNER_RADIUS);
cairo_stroke_preserve(cr);
//"slot"
cairo_set_source_rgba (cr, 0.17, 0.17, 0.17, 1.0);
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, CORNER_RADIUS-0.5);
cairo_fill(cr);
//mask off the corners
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, CORNER_RADIUS-0.5);
cairo_clip(cr);
if (_orien == VERT) {
if (ds > h - FADER_RESERVE - CORNER_OFFSET) {
ds = h - FADER_RESERVE - CORNER_OFFSET;
int travel = h - 1;
int progress = travel * (1.0-ds);
int top = 1 + progress;
int bottom = h;
//background gradient
if ( !CairoWidget::flat_buttons() ) {
cairo_pattern_t *bg_gradient = cairo_pattern_create_linear (0.0, 0.0, w, 0);
cairo_pattern_add_color_stop_rgba (bg_gradient, 0, 0, 0, 0, 0.4);
cairo_pattern_add_color_stop_rgba (bg_gradient, 0.2, 0, 0, 0, 0.2);
cairo_pattern_add_color_stop_rgba (bg_gradient, 1, 0, 0, 0, 0.0);
cairo_set_source (cr, bg_gradient);
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, CORNER_RADIUS-1.5);
cairo_fill (cr);
cairo_pattern_destroy(bg_gradient);
}
//fg color
CairoWidget::set_source_rgb_a (cr, fg_col, 1.0);
Gtkmm2ext::rounded_top_rectangle (cr, 1, top, w-2, bottom, CORNER_RADIUS - 1.5);
cairo_fill(cr);
cairo_set_source (cr, pattern);
cairo_matrix_init_translate (&matrix, 0, (h - ds));
cairo_pattern_set_matrix (pattern, &matrix);
cairo_fill (cr);
//fg gradient
if (!CairoWidget::flat_buttons() ) {
cairo_pattern_t *fg_gradient = cairo_pattern_create_linear (0.0, 0.0, w, 0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 0, 0, 0, 0, 0.0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 0.1, 0, 0, 0, 0.0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 1, 0, 0, 0, 0.3);
cairo_set_source (cr, fg_gradient);
Gtkmm2ext::rounded_rectangle (cr, 1, top, w-2, bottom, CORNER_RADIUS - 1.5);
cairo_fill (cr);
cairo_pattern_destroy(fg_gradient);
}
} else {
if (ds < FADER_RESERVE) {
ds = FADER_RESERVE;
int travel = w - 1;
int progress = travel * ds;
int left = 1;
int length = progress;
//background gradient
if ( !CairoWidget::flat_buttons() ) {
cairo_pattern_t *bg_gradient = cairo_pattern_create_linear (0.0, 0.0, 0, h);
cairo_pattern_add_color_stop_rgba (bg_gradient, 0, 0, 0, 0, 0.4);
cairo_pattern_add_color_stop_rgba (bg_gradient, 0.2, 0, 0, 0, 0.2);
cairo_pattern_add_color_stop_rgba (bg_gradient, 1, 0, 0, 0, 0.0);
cairo_set_source (cr, bg_gradient);
Gtkmm2ext::rounded_rectangle (cr, 1, 1, w-2, h-2, CORNER_RADIUS-1.5);
cairo_fill (cr);
cairo_pattern_destroy(bg_gradient);
}
//fg color
CairoWidget::set_source_rgb_a (cr, fg_col, 1.0);
Gtkmm2ext::rounded_rectangle (cr, left, 1, length, h-2, CORNER_RADIUS - 1.5);
cairo_fill(cr);
/*
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);
cairo_matrix_init_translate (&matrix, w - ds, 0);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_fill (cr);
//fg gradient
if (!CairoWidget::flat_buttons() ) {
cairo_pattern_t * fg_gradient = cairo_pattern_create_linear (0.0, 0.0, 0, h);
cairo_pattern_add_color_stop_rgba (fg_gradient, 0, 0, 0, 0, 0.0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 0.1, 0, 0, 0, 0.0);
cairo_pattern_add_color_stop_rgba (fg_gradient, 1, 0, 0, 0, 0.3);
cairo_set_source (cr, fg_gradient);
Gtkmm2ext::rounded_rectangle (cr, left, 1, length, h-2, CORNER_RADIUS - 1.5);
cairo_fill (cr);
cairo_pattern_destroy(fg_gradient);
}
}
cairo_reset_clip(cr);
//black border
cairo_set_line_width (cr, 1.0);
cairo_set_source_rgba (cr, 0, 0, 0, 1.0);
Gtkmm2ext::rounded_rectangle (cr, 0.5, 0.5, w-1, h-1, CORNER_RADIUS);
cairo_stroke(cr);
/* draw the unity-position line if it's not at either end*/
if (unity_loc > 0) {
context->set_line_width (1);
context->set_line_cap (Cairo::LINE_CAP_ROUND);
Gdk::Color c = get_style()->get_fg (Gtk::STATE_ACTIVE);
context->set_source_rgba (c.get_red_p()*1.5, c.get_green_p()*1.5, c.get_blue_p()*1.5, 0.85);
CairoWidget::set_source_rgb_a (cr, c, 1.0);
if ( _orien == VERT) {
if (unity_loc < h ) {
context->move_to (1.5, unity_loc + CORNER_OFFSET + .5);
context->line_to (girth - 1.5, unity_loc + CORNER_OFFSET + .5);
context->move_to (2.5, unity_loc + CORNER_OFFSET + .5);
context->line_to (girth-2.5, unity_loc + CORNER_OFFSET + .5);
context->stroke ();
}
} else {
if ( unity_loc < w ){
context->move_to (unity_loc - CORNER_OFFSET + .5, 1.5);
context->line_to (unity_loc - CORNER_OFFSET + .5, girth - 1.5);
context->move_to (unity_loc - CORNER_OFFSET + .5, 3.5);
context->line_to (unity_loc - CORNER_OFFSET + .5, girth-3.5);
context->stroke ();
}
}
}
//draw text
if ( !_text.empty() ) {
//calc text size
if ( !_text.empty()) {
_layout->get_pixel_size (_text_width, _text_height);
} else {
_text_width = 0;
_text_height = 0;
}
/* 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);
Gdk::Color c = get_style()->get_text (get_state());
CairoWidget::set_source_rgb_a (cr, c, 0.9);
pango_cairo_show_layout (cr, _layout->gobj());
}
@ -344,11 +255,6 @@ PixFader::on_size_allocate (Gtk::Allocation& alloc)
span = alloc.get_width ();
}
if (is_realized()) {
/* recreate patterns in case we've changed size */
create_patterns ();
}
update_unity_position ();
}
@ -540,18 +446,12 @@ PixFader::adjustment_changed ()
}
/** @return pixel offset of the current value from the right or bottom of the fader */
int
float
PixFader::display_span ()
{
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;
return fract;
}
void
@ -625,7 +525,6 @@ void
PixFader::on_state_changed (Gtk::StateType old_state)
{
Widget::on_state_changed (old_state);
create_patterns ();
queue_draw ();
}
@ -638,10 +537,5 @@ PixFader::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
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;
queue_draw ();
}