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Port the code from Cairo to Cairo--. 

See the TODO files for bugs and things that require attention.
The nasty bug that prevents visualization has been around for a while now, since Gtk+ reached 2.12, I think. Must be fixed.


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@1349 3ecf2c5c-341e-0410-92b4-d18e462d057c
This commit is contained in:
tchernobog 2009-12-30 23:36:01 +00:00
parent 1220e1be16
commit bce427d022
12 changed files with 419 additions and 421 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Makefile.am
View File

@ -352,7 +352,7 @@ sgpemv2_CPPFLAGS = \
-DLOCALEDIR="\"$(localedir)\"" \
-DSHAREDIR="\"$(sharedir)\"" \
-DUIDIR="\"$(uidir)\"" \
$(CAIRO_CFLAGS) \
$(CAIROMM_CFLAGS) \
$(GTKMM_CFLAGS) \
$(LIBGLADEMM_CFLAGS) \
$(GTHREAD_CFLAGS)
@ -362,7 +362,7 @@ sgpemv2_LDFLAGS = \
-Wl,-rpath -Wl,"$(pkglibdir)"
sgpemv2_LDADD = \
src/backend/libbackend.la \
$(CAIRO_LIBS) \
$(CAIROMM_LIBS) \
$(GTKMM_LIBS) \
$(GTHREAD_LIBS)
@ -530,11 +530,11 @@ src_testsuite_test_key_file_SOURCES = \
src_testsuite_test_cairo_widget_CPPFLAGS = \
-I@top_srcdir@/src \
-I@top_srcdir@/src/backend \
$(CAIRO_CFLAGS) \
$(CAIROMM_CFLAGS) \
$(GTKMM_CFLAGS) \
$(GLIBMM_CFLAGS)
src_testsuite_test_cairo_widget_LDFLAGS = \
$(CAIRO_LIBS) \
$(CAIROMM_LIBS) \
$(GTKMM_LIBS) \
$(GLIBMM_LIBS)
src_testsuite_test_cairo_widget_SOURCES = \
@ -545,14 +545,14 @@ src_testsuite_test_cairo_widget_SOURCES = \
src_testsuite_test_simulation_widget_CPPFLAGS = \
-I@top_srcdir@/src \
-I@top_srcdir@/src/backend \
$(CAIRO_CFLAGS) \
$(CAIROMM_CFLAGS) \
$(GTKMM_CFLAGS) \
$(GLIBMM_CFLAGS) \
$(GTHREAD_CFLAGS)
src_testsuite_test_simulation_widget_LDFLAGS = \
src/backend/libbackend.la \
-Wl,-rpath -Wl,"$(pkglibdir)" \
$(CAIRO_LIBS) \
$(CAIROMM_LIBS) \
$(GTKMM_LIBS) \
$(GLIBMM_LIBS) \
$(GTHREAD_LIBS)
@ -565,14 +565,14 @@ src_testsuite_test_simulation_widget_SOURCES = \
src_testsuite_test_holt_widget_CPPFLAGS = \
-I@top_srcdir@/src \
-I@top_srcdir@/src/backend \
$(CAIRO_CFLAGS) \
$(CAIROMM_CFLAGS) \
$(GTKMM_CFLAGS) \
$(GLIBMM_CFLAGS) \
$(GTHREAD_CFLAGS)
src_testsuite_test_holt_widget_LDFLAGS = \
src/backend/libbackend.la \
-Wl,-rpath -Wl,"$(pkglibdir)" \
$(CAIRO_LIBS) \
$(CAIROMM_LIBS) \
$(GTKMM_LIBS) \
$(GLIBMM_LIBS) \
$(GTHREAD_LIBS)

4
TODO Normal file
View File

@ -0,0 +1,4 @@
- fix nasty bug that prevents all cairowidgets from showing up
- Check for simulationwidget deprecat. meth.
- check headers for #includes with <> instead of ""
- Report bug for presence of PKG, VERSION, etc. macros inside cairomm-config.h

15
configure.ac
View File

@ -57,9 +57,10 @@ AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.17])
dnl various requisites
SIGCPP_VERSION=2.0.10
GTKMM_VERSION=2.12.1
CAIRO_VERSION=1.0.0
SIGCPP_VERSION=2.0.18
GLIBMM_VERSION=2.22.0
GTKMM_VERSION=2.18.0
CAIROMM_VERSION=1.8.0
dnl c++ compiler and flags
AC_PROG_CXX
@ -109,9 +110,9 @@ if test -z "$PKG_CONFIG"; then
AC_MSG_ERROR([You may need to update your pkg-config installation])
fi
PKG_CHECK_MODULES([CAIRO],
[cairo >= $CAIRO_VERSION],
:, AC_MSG_ERROR([$CAIRO_PKG_ERRORS]))
PKG_CHECK_MODULES([CAIROMM],
[cairomm-1.0 >= $CAIROMM_VERSION],
:, AC_MSG_ERROR([$CAIROMM_PKG_ERRORS]))
PKG_CHECK_MODULES([GTHREAD],
[gthread-2.0 >= $GTKMM_VERSION],
:, AC_MSG_ERROR([$GTHREAD_PKG_ERRORS]))
@ -119,7 +120,7 @@ PKG_CHECK_MODULES([SIGCPP],
[sigc++-2.0 >= $SIGCPP_VERSION],
:, AC_MSG_ERROR([$SIGCPP_PKG_ERRORS]))
PKG_CHECK_MODULES([GLIBMM],
[glibmm-2.4 >= $GTKMM_VERSION],
[glibmm-2.4 >= $GLIBMM_VERSION],
:, AC_MSG_ERROR([$GLIBMM_PKG_ERRORS]))
PKG_CHECK_MODULES([GTKMM],
[gtkmm-2.4 >= $GTKMM_VERSION],

211
src/cairo_elements.cc
View File

@ -29,7 +29,7 @@
using namespace sgpem;
CairoElements::CairoElements(cairo_t* const ctx)
CairoElements::CairoElements(const Cairo::RefPtr<Cairo::Context>& ctx)
: _ctx(ctx)
{
}
@ -38,7 +38,8 @@ CairoElements::CairoElements(cairo_t* const ctx)
void
CairoElements::draw_3dsphere(const Point& center, float radius, const Color& cl)
{
cairo_t*& cr = _ctx;
using namespace Cairo;
const float& x = center.x;
const float& y = center.y;
const float& r = cl.r;
@ -46,52 +47,52 @@ CairoElements::draw_3dsphere(const Point& center, float radius, const Color& cl)
const float& b = cl.b;
// Draw initial sphere perimeter
cairo_save(cr);
cairo_new_path(cr);
cairo_arc(cr, x, y, radius, 0, 2*M_PI);
cairo_pattern_t* grad = cairo_pattern_create_radial(x, y, radius, x, y, radius - .15);
cairo_pattern_add_color_stop_rgba(grad, 0, r - .2, g - .2, b - .2, 1);
cairo_pattern_add_color_stop_rgba(grad, 1, r, g, b, 1);
cairo_set_source(cr, grad);
cairo_fill_preserve(cr);
cairo_pattern_destroy(grad);
cairo_set_source_rgba(cr, 0, 0, 0, 1);
cairo_set_line_width(cr, radius * .01);
cairo_stroke(cr);
cairo_restore(cr);
_ctx->save();
_ctx->begin_new_path();
_ctx->arc(x, y, radius, 0, 2*M_PI);
RefPtr<Gradient> grad = RadialGradient::create(x, y, radius, x, y, radius - .15);
grad->add_color_stop_rgba(0, r - .2, g - .2, b - .2, 1);
grad->add_color_stop_rgba(1, r, g, b, 1);
_ctx->set_source(grad);
_ctx->fill_preserve();
_ctx->set_source_rgba(0, 0, 0, 1);
_ctx->set_line_width(radius * .01);
_ctx->stroke();
_ctx->restore();
// Internal gradient
cairo_save(cr);
grad = cairo_pattern_create_linear(x, y, x, y + radius);
cairo_pattern_add_color_stop_rgba(grad, 1, r - .4, g - .4, b - .4, 1);
cairo_pattern_add_color_stop_rgba(grad, 0, r, g, b, .7);
cairo_set_source(cr, grad);
cairo_translate(cr, x*.2, (y + radius*8 / 9) * 1 / 3);
cairo_scale(cr, .8, 2. / 3);
cairo_arc(cr, x, y, radius, 0, 2*M_PI);
cairo_fill(cr);
cairo_pattern_destroy(grad);
cairo_restore(cr);
_ctx->save();
grad = LinearGradient::create(x, y, x, y + radius);
grad->add_color_stop_rgba(1, r - .4, g - .4, b - .4, 1);
grad->add_color_stop_rgba(0, r, g, b, .7);
_ctx->set_source(grad);
_ctx->translate(x*.2, (y + radius*8 / 9) * 1 / 3);
_ctx->scale(.8, 2. / 3);
_ctx->arc(x, y, radius, 0, 2*M_PI);
_ctx->fill();
_ctx->restore();
// Internal glow
cairo_save(cr);
grad = cairo_pattern_create_linear(x, y - radius, x, y);
cairo_pattern_add_color_stop_rgba(grad, 0, 1, 1, 1, .9);
cairo_pattern_add_color_stop_rgba(grad, 1, 1, 1, 1, .2);
cairo_set_source(cr, grad);
cairo_translate(cr, x * .2, (y - radius*8 / 9) * 1 / 3);
cairo_scale(cr, .8, 2. / 3);
cairo_arc(cr, x, y, radius, 0, 2*M_PI);
cairo_fill(cr);
cairo_pattern_destroy(grad);
cairo_restore(cr);
_ctx->save();
grad = LinearGradient::create(x, y - radius, x, y);
grad->add_color_stop_rgba(0, 1, 1, 1, .9);
grad->add_color_stop_rgba(1, 1, 1, 1, .2);
_ctx->set_source(grad);
_ctx->translate(x * .2, (y - radius*8 / 9) * 1 / 3);
_ctx->scale(.8, 2. / 3);
_ctx->arc(x, y, radius, 0, 2*M_PI);
_ctx->fill();
_ctx->restore();
}
void
CairoElements::draw_3dcube(const Rectangle& area, const Color& cl,
const float x_percent, const float y_percent)
{
cairo_t*& cr = _ctx;
using namespace Cairo;
const float& x0 = area.x0;
const float& y0 = area.y0;
const float& w = area.w;
@ -100,54 +101,53 @@ CairoElements::draw_3dcube(const Rectangle& area, const Color& cl,
const float& g = cl.b;
const float& b = cl.b;
cairo_save(cr);
cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
_ctx->save();
_ctx->set_line_join(LINE_JOIN_ROUND);
// Front side of the cube:
cairo_rectangle(cr,
x0, y0 + (1 - y_percent) * h,
_ctx->rectangle(x0, y0 + (1 - y_percent) * h,
w * x_percent, h * y_percent);
cairo_set_source_rgb(cr, r, g, b);
cairo_fill_preserve(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke(cr);
_ctx->set_source_rgb(r, g, b);
_ctx->fill_preserve();
_ctx->set_source_rgb(0, 0, 0);
_ctx->stroke();
// ``Upper'' visible cube side:
cairo_new_path(cr);
cairo_move_to(cr, x0, y0 + (1 - y_percent) * h);
cairo_line_to(cr, x0 + (1 - x_percent) * w, y0);
cairo_line_to(cr, x0 + w, y0);
cairo_line_to(cr, x0 + w * x_percent, y0 + (1 - y_percent) * h);
cairo_close_path(cr);
cairo_set_source_rgb(cr, r - 0.2, g - 0.2, b - 0.2);
cairo_fill_preserve(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke(cr);
_ctx->begin_new_path();
_ctx->move_to(x0, y0 + (1 - y_percent) * h);
_ctx->line_to(x0 + (1 - x_percent) * w, y0);
_ctx->line_to(x0 + w, y0);
_ctx->line_to(x0 + w * x_percent, y0 + (1 - y_percent) * h);
_ctx->close_path();
_ctx->set_source_rgb(r - 0.2, g - 0.2, b - 0.2);
_ctx->fill_preserve();
_ctx->set_source_rgb(0, 0, 0);
_ctx->stroke();
// ``Right'' visible cube side:
cairo_new_path(cr);
cairo_move_to(cr, x0 + w * x_percent, y0 + (1 - y_percent) * h);
cairo_line_to(cr, x0 + w, y0);
cairo_line_to(cr, x0 + w, y0 + y_percent * h);
cairo_line_to(cr, x0 + w * x_percent, y0 + h);
cairo_close_path(cr);
_ctx->begin_new_path();
_ctx->move_to(x0 + w * x_percent, y0 + (1 - y_percent) * h);
_ctx->line_to(x0 + w, y0);
_ctx->line_to(x0 + w, y0 + y_percent * h);
_ctx->line_to(x0 + w * x_percent, y0 + h);
_ctx->close_path();
cairo_set_source_rgb(cr, r - 0.4, g - 0.4, b - 0.4);
cairo_fill_preserve(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke(cr);
_ctx->set_source_rgb(r - 0.4, g - 0.4, b - 0.4);
_ctx->fill_preserve();
_ctx->set_source_rgb(0, 0, 0);
_ctx->stroke();
cairo_restore(cr);
_ctx->restore();
}
void
CairoElements::draw_container(const Rectangle& area)
{
cairo_t*& cr = _ctx;
using namespace Cairo;
const float& x0 = area.x0;
const float& y0 = area.y0;
const float& w = area.w;
@ -155,67 +155,68 @@ CairoElements::draw_container(const Rectangle& area)
const double corner_radius = 0.05;
cairo_save(cr);
cairo_new_path(cr);
cairo_move_to(cr, x0 + corner_radius, y0);
_ctx->save();
_ctx->begin_new_path();
_ctx->move_to(x0 + corner_radius, y0);
// NW -> NE
cairo_line_to(cr, x0 + w - corner_radius, y0);
cairo_curve_to(cr, x0 + w, y0, x0 + w, y0, x0 + w, y0 + corner_radius);
_ctx->line_to(x0 + w - corner_radius, y0);
_ctx->curve_to(x0 + w, y0, x0 + w, y0, x0 + w, y0 + corner_radius);
// NE -> SE
cairo_line_to(cr, x0 + w, y0 + h - corner_radius);
cairo_curve_to(cr, x0 + w, y0 + h, x0 + w, y0 + h, x0 + w - corner_radius, y0 + h);
_ctx->line_to(x0 + w, y0 + h - corner_radius);
_ctx->curve_to(x0 + w, y0 + h, x0 + w, y0 + h, x0 + w - corner_radius, y0 + h);
// SE -> SW
cairo_line_to(cr, x0 + corner_radius, y0 + h);
cairo_curve_to(cr, x0, y0 + h, x0, y0 + h, x0, y0 + h - corner_radius);
_ctx->line_to(x0 + corner_radius, y0 + h);
_ctx->curve_to(x0, y0 + h, x0, y0 + h, x0, y0 + h - corner_radius);
// SW -> NW
cairo_line_to(cr, x0, y0 + corner_radius);
cairo_curve_to(cr, x0, y0, x0, y0, x0 + corner_radius, y0);
cairo_close_path(cr);
_ctx->line_to(x0, y0 + corner_radius);
_ctx->curve_to(x0, y0, x0, y0, x0 + corner_radius, y0);
_ctx->close_path();
cairo_set_source_rgb(cr, 1, 1, 0.9);
cairo_fill_preserve(cr);
_ctx->set_source_rgb(1, 1, 0.9);
_ctx->fill_preserve();
cairo_set_line_width(cr, .005);
cairo_set_source_rgb(cr, 0, 0, 0);
_ctx->set_line_width(.005);
_ctx->set_source_rgb(0, 0, 0);
cairo_stroke(cr);
cairo_restore(cr);
_ctx->stroke();
_ctx->restore();
}
void
CairoElements::draw_expandable(const Rectangle& area, bool expanded)
{
cairo_t*& cr = _ctx;
using namespace Cairo;
const float& x0 = area.x0;
const float& y0 = area.y0;
const float& w = area.w;
const float& h = area.h;
cairo_save(cr);
_ctx->save();
cairo_set_line_width(cr, .005);
cairo_set_source_rgb(cr, 1, 1, 1);
_ctx->set_line_width(.005);
_ctx->set_source_rgb(1, 1, 1);
cairo_new_path(cr);
cairo_rectangle(cr, x0, y0, w, h);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_fill_preserve(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke(cr);
_ctx->begin_new_path();
_ctx->rectangle(x0, y0, w, h);
_ctx->set_source_rgb(1, 1, 1);
_ctx->fill_preserve();
_ctx->set_source_rgb(0, 0, 0);
_ctx->stroke();
cairo_move_to(cr, x0 + w / 10, y0 + h / 2);
cairo_line_to(cr, x0 + w*9 / 10, y0 + h / 2);
cairo_stroke(cr);
_ctx->move_to(x0 + w / 10, y0 + h / 2);
_ctx->line_to(x0 + w*9 / 10, y0 + h / 2);
_ctx->stroke();
if (!expanded)
if (!expanded) // The "-" becomes a "+"
{
cairo_move_to(cr, x0 + w / 2, y0 + h / 10);
cairo_line_to(cr, x0 + w / 2, y0 + h*9 / 10);
cairo_stroke(cr);
_ctx->move_to(x0 + w / 2, y0 + h / 10);
_ctx->line_to(x0 + w / 2, y0 + h*9 / 10);
_ctx->stroke();
}
cairo_restore(cr);
_ctx->restore();
}

10
src/cairo_elements.hh
View File

@ -21,11 +21,7 @@
#ifndef CAIRO_ELEMENTS_HH
#define CAIRO_ELEMENTS_HH 1
#include <sgpemv2/thread.hh>
#include <sgpemv2/process.hh>
#include <cairo.h>
#include <cairomm/context.h>
namespace sgpem
{
@ -61,7 +57,7 @@ namespace sgpem
class CairoElements
{
public:
CairoElements(cairo_t* const ctx);
CairoElements(const Cairo::RefPtr<Cairo::Context>& ctx);
void draw_3dsphere(const Point& center, float radius, const Color& cl);
void draw_3dcube(const Rectangle& area, const Color& cl, const float x_percent, const float y_percent);
@ -69,7 +65,7 @@ namespace sgpem
void draw_expandable(const Rectangle& area, bool expanded = false);
private:
cairo_t* _ctx;
Cairo::RefPtr<Cairo::Context> _ctx;
};
} //~ namespace sgpem

56
src/cairo_widget.cc
View File

@ -75,11 +75,11 @@ CairoWidget::get_scaling_mode() const
void
CairoWidget::on_realize()
{
if (is_realized()) return;
Gtk::Widget::on_realize();
ensure_style();
if (!_ref_gdk_window) return;
GdkWindowAttr attributes;
memset(&attributes, 0, sizeof(attributes));
@ -90,30 +90,29 @@ CairoWidget::on_realize()
attributes.width = alloc.get_width();
attributes.height = alloc.get_height();
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.event_mask = get_events() | GDK_EXPOSURE_MASK | GDK_ALL_EVENTS_MASK;
attributes.event_mask = get_events() | GDK_EXPOSURE_MASK;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = get_visual()->gobj();
attributes.colormap = get_colormap()->gobj();
_client_w = alloc.get_width();
_client_h = alloc.get_height();
static const gint attributes_mask = Gdk::WA_X | Gdk::WA_Y | Gdk::WA_WMCLASS
| Gdk::WA_VISUAL | Gdk::WA_COLORMAP;
static const gint attributes_mask = Gdk::WA_X | Gdk::WA_Y;
Glib::RefPtr<Gdk::Window> window = Gdk::Window::create(get_parent_window(),
_ref_gdk_window = Gdk::Window::create(get_window(),
&attributes,
attributes_mask);
unset_flags(Gtk::NO_WINDOW);
set_window(window);
window->set_user_data(gobj());
set_window(_ref_gdk_window);
_ref_gdk_window->set_user_data(gobj());
}
Glib::RefPtr<Gtk::Style> style = get_style ();
style = style->attach (window);
style->set_background(window, Gtk::STATE_ACTIVE);
void
CairoWidget::on_unrealize()
{
_ref_gdk_window.clear();
Gtk::Widget::on_unrealize();
}
/*
@ -124,8 +123,8 @@ CairoWidget::on_size_allocate(const Gtk::Allocation& allocation)
{
set_allocation(allocation);
if (is_realized())
{
if (!_ref_gdk_window) return;
get_window()->move_resize(allocation.get_x(), allocation.get_y(),
allocation.get_width(), allocation.get_height());
@ -137,8 +136,6 @@ CairoWidget::on_size_allocate(const Gtk::Allocation& allocation)
_need_redraw = true;
}
}
/*
This method is called by Gtk to get the widget desired size.
*/
@ -163,6 +160,8 @@ CairoWidget::on_size_request(Gtk::Requisition* requisition)
bool
CairoWidget::on_expose_event(GdkEventExpose* event)
{
if (!_ref_gdk_window) return true;
if (event == NULL || event->count > 0)
return false;
@ -180,7 +179,7 @@ CairoWidget::on_expose_event(GdkEventExpose* event)
_client_w = actual_w;
_client_h = actual_h;
// The pixmap must be crated or no?
// The pixmap must be crated or not?
// If the pixmap buffer size isn't enough
// it must be allocated or reallocated.
// Here is used a lazy technique:
@ -195,7 +194,7 @@ CairoWidget::on_expose_event(GdkEventExpose* event)
_pixmap_h = (size_t) (_client_h*1.2);
// allocate the pixmap
_buf = Gdk::Pixmap::create(get_window(), _pixmap_w, _pixmap_h);
_buf = Gdk::Pixmap::create(_ref_gdk_window, _pixmap_w, _pixmap_h);
}
@ -208,8 +207,8 @@ CairoWidget::on_expose_event(GdkEventExpose* event)
NULL, (GtkWidget*)this->gobj(), "through",
0, 0, _client_w, _client_h);
// here the cairo context is creted
cairo_t* ctx = gdk_cairo_create(_buf->gobj());
// here the cairo context is created
Cairo::RefPtr<Cairo::Context> ctx = _buf->create_cairo_context();
// Determine the final drawing dimensions
// before to start drawing
@ -218,13 +217,11 @@ CairoWidget::on_expose_event(GdkEventExpose* event)
// calculate and apply scale factors
calc_scale_factors();
cairo_scale(ctx, _scale_x, _scale_y);
ctx->scale(_scale_x, _scale_y);
// do the drawing...
draw_widget(ctx);
// bye bye context
cairo_destroy(ctx);
} // ~ if(_need_redraw || actual_w!=_client_w || actual_h!=_client_h)
// Now the in-memory picture is placed on screen
@ -233,7 +230,7 @@ CairoWidget::on_expose_event(GdkEventExpose* event)
// Use double buffering or we're CPU-dead
// Copy from the buffer to the screen
if (_buf)
get_window()->draw_drawable(get_style()->get_black_gc(), _buf,
_ref_gdk_window->draw_drawable(get_style()->get_black_gc(), _buf,
event->area.x, event->area.y,
event->area.x, event->area.y,
event->area.width, event->area.height);
@ -265,6 +262,7 @@ CairoWidget::calc_scale_factors()
// doesn't scale
_scale_x = _scale_y = 1.0;
break;
case scaling_to_w:
// scale to fit in width
// x and y take the same x value
@ -335,14 +333,14 @@ CairoWidget::resize_redraw()
if(_buf)
{
cairo_t* ctx = gdk_cairo_create(_buf->gobj());
Cairo::RefPtr<Cairo::Context> ctx = _buf->create_cairo_context();
if(ctx)
{
// Determine the final drawing dimensions before to start drawing
_draw_w = _draw_h = 0; // default no scaling
calc_drawing_size(ctx, _draw_w, _draw_h);
cairo_destroy(ctx);
ctx.clear();
calc_scale_factors();
@ -367,7 +365,7 @@ CairoWidget::resize_redraw()
Derived classes can reimplement it or not as desired.
*/
void
CairoWidget::calc_drawing_size(cairo_t* /* ctx */, size_t& /* width */, size_t& /*height*/)
CairoWidget::calc_drawing_size(Cairo::RefPtr<Cairo::Context>& /* ctx */, size_t& /* width */, size_t& /*height*/)
{
}

33
src/cairo_widget.hh
View File

@ -21,8 +21,7 @@
#ifndef CAIRO_WIDGET_HH
#define CAIRO_WIDGET_HH 1
#include <cairo.h>
#include <gtkmm/drawingarea.h>
#include <cairomm/context.h>
#include <gtkmm/widget.h>
#include <gdkmm/pixmap.h>
@ -141,7 +140,7 @@ namespace sgpem
/**
* \brief Widgets size type.
*/
typedef unsigned int size_t;
typedef guint size_t;
// implementation of fundamental widget's method
/**
@ -152,6 +151,7 @@ namespace sgpem
* See gtkmm documentation for more informations.
*/
virtual void on_realize();
virtual void on_unrealize(); // doesn't need to be documented.
/**
* \brief Implements standard widget's on_size_allocate() mehtod.
@ -193,7 +193,7 @@ namespace sgpem
* draw in the widgets client area.
* See cairo documentation for more informations.
*/
virtual void draw_widget(cairo_t* ctx) = 0;
virtual void draw_widget(Cairo::RefPtr<Cairo::Context>& ctx) = 0;
/**
* \brief Method to calculate widget dimensions.
@ -201,7 +201,7 @@ namespace sgpem
* The user should implement this method to allow scaling factors calculation.
* Is necessary if scaling is needed/used.
*/
virtual void calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height);
virtual void calc_drawing_size(Cairo::RefPtr<Cairo::Context>& ctx, size_t& width, size_t& height);
// with this method CairoWidget tells the needed widget dimensions
/**
@ -232,48 +232,48 @@ namespace sgpem
/**
* \brief Calculated width of drawing.
*/
mutable size_t _draw_w;
size_t _draw_w;
/**
* \brief Calculated height of drawing.
*/
mutable size_t _draw_h;
size_t _draw_h;
private:
/**
* \brief Client area width of widget.
*/
mutable size_t _client_w;
size_t _client_w;
/**
* \brief Client area height of widget.
*/
mutable size_t _client_h;
size_t _client_h;
/**
* \brief Client area width of pixmap.
*/
mutable size_t _pixmap_w;
size_t _pixmap_w;
/**
* \brief Client area width of pixmap.
*/
mutable size_t _pixmap_h;
size_t _pixmap_h;
/**
* \brief Cairo x scale factor.
*/
mutable double _scale_x;
double _scale_x;
/**
* \brief Cairo y scale factor.
*/
mutable double _scale_y;
double _scale_y;
/**
* \brief Flag to signal require redrawing.
*/
mutable bool _need_redraw;
bool _need_redraw;
/**
* \brief Actual scaling mode.
@ -284,6 +284,11 @@ namespace sgpem
* \brief Offscreen pixmap used for double-buffering.
*/
Glib::RefPtr<Gdk::Pixmap> _buf;
/**
*
*/
Glib::RefPtr<Gdk::Window> _ref_gdk_window;
};
} //~ namespace sgpem

136
src/holt_widget.cc
View File

@ -21,20 +21,22 @@
#include "cairo_elements.hh"
#include <sgpemv2/history.hh>
#include <sgpemv2/schedulable.hh>
#include <sgpemv2/resource.hh>
#include <sgpemv2/simulation.hh>
#include <sgpemv2/string_utils.hh>
#include <sgpemv2/thread.hh>
#include "sgpemv2/history.hh"
#include "sgpemv2/schedulable.hh"
#include "sgpemv2/process.hh"
#include "sgpemv2/resource.hh"
#include "sgpemv2/simulation.hh"
#include "sgpemv2/string_utils.hh"
#include "sgpemv2/thread.hh"
#include "holt_widget.hh"
#include <sgpemv2/templates/deletor.tcc>
#include <sgpemv2/templates/sequences.tcc>
#include "sgpemv2/templates/deletor.tcc"
#include "sgpemv2/templates/sequences.tcc"
#include <math.h>
#include <cairomm/cairomm.h>
#include <cmath>
#include <cassert>
#ifndef NDEBUG
@ -104,7 +106,7 @@ HoltResource::~HoltResource()
{
}
void HoltResource::draw(cairo_t *cr)
void HoltResource::draw(Cairo::RefPtr<Cairo::Context>& cr)
{
static const Color white(1, 1, 1);
@ -114,43 +116,31 @@ void HoltResource::draw(cairo_t *cr)
CairoElements ce(cr);
// outline
cairo_set_source_rgb (cr, 0, 0, 0);
cr->set_source_rgb (0, 0, 0);
// draw rectangle
Rectangle area(_pos.real() - _radius, _pos.imag() - _radius, 2*_radius, 2*_radius);
ce.draw_3dcube(area, white, x_percent, y_percent);
cr->save();
cairo_save(cr);
// clip text outside region
/*
cairo_rectangle(cr,
_pos.real() - _radius,
_pos.imag() - _radius, // _pos.imag() + _radius (1 - 2.0 * y_percent)
2 * _radius * x_percent,
2 * _radius * y_percent);
*/
cairo_rectangle(cr,
_pos.real() - _radius,
cr->rectangle(_pos.real() - _radius,
_pos.imag() + _radius * (1 - 2.0 * y_percent),
2 * _radius * x_percent,
2 * _radius * y_percent);
cr->clip();
cairo_clip(cr);
// draw text
cairo_text_extents_t extents;
cairo_text_extents(cr, _resource->get_name().c_str(), &extents);
Cairo::TextExtents extents;
cr->get_text_extents(_resource->get_name(), extents);
double xpos = _pos.real() + _radius * (x_percent-1) - extents.width/2.0;
double ypos = _pos.imag() + _radius * (1 - y_percent); // + extents.height/2;
// _pos.imag() + extents.height * ((1 - y_percent) / 2 + 0.5)
// left aligned if too large
if(xpos<_pos.real() - _radius)
xpos = _pos.real() - _radius;
cairo_move_to(cr,
xpos,
ypos );
cairo_show_text(cr, _resource->get_name().c_str());
cr->move_to(xpos, ypos );
cr->show_text(_resource->get_name());
// show used/total places
Glib::ustring used;
@ -159,18 +149,16 @@ void HoltResource::draw(cairo_t *cr)
to_string<int>((int)_resource->get_places(), total);
Glib::ustring msg = used + "/" + total;
cairo_text_extents(cr, msg.c_str(), &extents);
cr->get_text_extents(msg, extents);
xpos = _pos.real() + _radius * (x_percent-1) - extents.width/2.0;
ypos = _pos.imag() + _radius * (1 - y_percent) + extents.height*2;
cairo_move_to(cr,
xpos,
ypos );
cairo_show_text(cr, msg.c_str());
cr->move_to(xpos, ypos);
cr->show_text(msg);
// stroke all
cairo_stroke (cr);
cr->stroke();
cairo_restore(cr);
cr->restore();
}
Vec2 HoltResource::get_intersection_to(Vec2 pt)
@ -224,14 +212,13 @@ HoltSchedulable::~HoltSchedulable()
{
}
void HoltSchedulable::draw(cairo_t *cr)
void HoltSchedulable::draw(Cairo::RefPtr<Cairo::Context>& cr)
{
static const Color red(1, 0, 0);
static const Color yellow(1, 0.8, 0);
static const Color green(0, 1, 0);
cairo_save(cr); // save context state
cr->save(); // save context state
const Point center(_pos.real(), _pos.imag());
const Color* color = &red;
@ -259,22 +246,21 @@ void HoltSchedulable::draw(cairo_t *cr)
cel.draw_3dsphere(center, _radius, *color);
// clip text outside region
cairo_arc(cr, _pos.real(), _pos.imag(), _radius, 0, 2*M_PI);
cairo_clip(cr);
cr->arc(_pos.real(), _pos.imag(), _radius, 0, 2*M_PI);
cr->clip();
// draw text
cairo_text_extents_t extents;
cairo_text_extents(cr, _schedulable->get_name().c_str(), &extents);
Cairo::TextExtents extents;
cr->get_text_extents(_schedulable->get_name(), extents);
double text_width = extents.width;
if(text_width>_radius*2.0)
text_width=_radius*2.0;
cairo_move_to(cr, _pos.real() - text_width/2, _pos.imag() + extents.height/2);
cairo_show_text(cr, _schedulable->get_name().c_str());
if(text_width>_radius*2.0) text_width=_radius*2.0;
cr->move_to(_pos.real() - text_width/2, _pos.imag() + extents.height/2);
cr->show_text(_schedulable->get_name());
// stroke all
cairo_stroke (cr);
cr->stroke();
cairo_restore(cr); // restore context state
cr->restore(); // restore context state
}
Vec2 HoltSchedulable::get_intersection_to(Vec2 pt)
@ -310,24 +296,24 @@ HoltRequest::~HoltRequest()
{
}
void HoltRequest::draw(cairo_t *cr)
void HoltRequest::draw(Cairo::RefPtr<Cairo::Context>& cr)
{
Vec2 resource = _hp->get_intersection_to(_hr->get_position());
Vec2 schedulable = _hr->get_intersection_to(_hp->get_position());
cairo_save(cr);
cr->save();
switch(_state)
{
case Request::state_unallocable:
// red
cairo_set_source_rgb(cr, 1, 0, 0);
cr->set_source_rgb(1, 0, 0);
arrow(cr, schedulable, resource);
break;
case Request::state_allocated:
// green
cairo_set_source_rgb(cr, 0, 1, 0);
cr->set_source_rgb(0, 1, 0);
arrow(cr, resource, schedulable);
break;
@ -339,23 +325,23 @@ void HoltRequest::draw(cairo_t *cr)
case Request::state_allocable:
// yellow
cairo_set_source_rgb(cr, 1, 0.7, 0);
cr->set_source_rgb(1, 0.7, 0);
arrow(cr, schedulable, resource);
break;
}
// stroke all and restore status
cairo_stroke (cr);
cairo_restore(cr);
cr->stroke();
cr->restore();
}
void HoltRequest::arrow(cairo_t *cr, Vec2 first, Vec2 second)
void HoltRequest::arrow(Cairo::RefPtr<Cairo::Context>& cr, Vec2 first, Vec2 second)
{
// option to draw the line a little translated
// this allow to draw two counterflow arrows
// without overlap
bool traslate = true;
double line_width = cairo_get_line_width(cr);
double line_width = cr->get_line_width();
if(traslate)
{
// if needed calc parallel versor of arrow
@ -373,8 +359,8 @@ void HoltRequest::arrow(cairo_t *cr, Vec2 first, Vec2 second)
}
// draw main line
cairo_move_to(cr, second.real(), second.imag());
cairo_line_to(cr, first.real(), first.imag());
cr->move_to(second.real(), second.imag());
cr->line_to(first.real(), first.imag());
// some calculation to draw arrowpoint...
// take a short line parallel to main line
@ -386,11 +372,11 @@ void HoltRequest::arrow(cairo_t *cr, Vec2 first, Vec2 second)
Vec2 side1 = arrowside * deviation;
Vec2 side2 = arrowside * conj(deviation);
// draw one side
cairo_move_to(cr, first.real(), first.imag());
cairo_line_to(cr, first.real()+side1.real(), first.imag()+side1.imag());
cr->move_to(first.real(), first.imag());
cr->line_to(first.real()+side1.real(), first.imag()+side1.imag());
// draw the other side
cairo_move_to(cr, first.real(), first.imag());
cairo_line_to(cr, first.real()+side2.real(), first.imag()+side2.imag());
cr->move_to(first.real(), first.imag());
cr->line_to(first.real()+side2.real(), first.imag()+side2.imag());
}
@ -806,7 +792,7 @@ HoltWidget::acquire()
void
HoltWidget::draw_widget(cairo_t* ctx)
HoltWidget::draw_widget(Cairo::RefPtr<Cairo::Context>& ctx)
{
#ifndef NDEBUG
std::cout << "HoltWidget::draw_widget" << endl;
@ -820,17 +806,15 @@ HoltWidget::draw_widget(cairo_t* ctx)
{
const History& hist = _simulation->get_history();
const unsigned int hist_front = hist.get_front() == 0 ? 0 : hist.get_front() - 1;
cairo_text_extents_t extents;
Cairo::TextExtents extents;
stringstream ss;
ss << "T = " << hist_front;
cairo_text_extents(ctx, ss.str().c_str(), &extents);
cairo_move_to(ctx, _draw_w/2 - extents.width/2.0, extents.height*2.0);
cairo_show_text(ctx, ss.str().c_str());
cairo_stroke(ctx);
ctx->get_text_extents(ss.str(), extents);
ctx->move_to(_draw_w/2 - extents.width/2.0, extents.height*2.0);
ctx->show_text(ss.str());
ctx->stroke();
}
// draw all resources
typedef HoltResources::const_iterator holt_res_iterator;
holt_res_iterator riter = _holt_resources.begin();
@ -865,7 +849,7 @@ HoltWidget::draw_widget(cairo_t* ctx)
void
HoltWidget::calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height)
HoltWidget::calc_drawing_size(Cairo::RefPtr<Cairo::Context>& ctx, size_t& width, size_t& height)
{
#ifndef NDEBUG
cout << "Holt widget BEFORE calc_drawing_size width=" << width << " height=" << height << endl;
@ -881,10 +865,10 @@ HoltWidget::calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height)
int max = _n_proc;
if(_n_res>_n_proc)
max = _n_res;
cairo_text_extents_t extents;
Cairo::TextExtents extents;
static const Glib::ustring val("Process 999 Resource 999");
cairo_text_extents(ctx, val.c_str(), &extents);
ctx->get_text_extents(val, extents);
_radius = extents.width/4.0;
switch(_arrange_mode)

14
src/holt_widget.hh
View File

@ -89,7 +89,7 @@ namespace sgpem
*
* \param cr The cairo context to draw to.
*/
virtual void draw(cairo_t *cr) = 0;
virtual void draw(Cairo::RefPtr<Cairo::Context>& cr) = 0;
/**
* \brief Setter and getter method for position parameter.
@ -195,7 +195,7 @@ namespace sgpem
*
* \param cr Cairo context to draw to.
*/
virtual void draw(cairo_t *cr);
virtual void draw(Cairo::RefPtr<Cairo::Context>& cr);
/**
* \brief Computes point of intersection with edge.
@ -278,7 +278,7 @@ namespace sgpem
*
* \param cr Cairo context to draw to.
*/
virtual void draw(cairo_t *cr);
virtual void draw(Cairo::RefPtr<Cairo::Context>& cr);
/**
* \brief Computes point of intersection with edge.
@ -336,7 +336,7 @@ namespace sgpem
*
* \param cr Cairo context to draw to.
*/
virtual void draw(cairo_t *cr);
virtual void draw(Cairo::RefPtr<Cairo::Context>& cr);
private:
/**
@ -346,7 +346,7 @@ namespace sgpem
* \param first Starting point.
* \param first Ending point.
*/
virtual void arrow(cairo_t *cr, Vec2 first, Vec2 second);
virtual void arrow(Cairo::RefPtr<Cairo::Context>& cr, Vec2 first, Vec2 second);
/**
* \brief Pointer to the referring schedulable.
@ -490,7 +490,7 @@ namespace sgpem
* \param ctx the cairo context to draw to
* \see CairoWidget for more.
*/
void draw_widget(cairo_t* ctx);
void draw_widget(Cairo::RefPtr<Cairo::Context>& ctx);
/**
@ -500,7 +500,7 @@ namespace sgpem
* \param width the return parameter for desired width
* \param height the return parameter for desired height
*/
virtual void calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height);
virtual void calc_drawing_size(Cairo::RefPtr<Cairo::Context>& ctx, size_t& width, size_t& height);
// virtual void calc_widget_size(size_t& width, size_t& height);

186
src/simulation_widget.cc
View File

@ -22,15 +22,19 @@
#include "simulation_widget.hh"
#include "cairo_elements.hh"
#include "sgpemv2/history.hh"
#include "sgpemv2/process.hh"
#include "sgpemv2/thread.hh"
#include "sgpemv2/simulation.hh"
#include "sgpemv2/string_utils.hh"
#include <glibmm/refptr.h>
#include <gtkmm/action.h>
#include <gtkmm/actiongroup.h>
#include <gtkmm/menu.h>
#include <gtkmm/uimanager.h>
#include <sgpemv2/history.hh>
#include <sgpemv2/simulation.hh>
#include <sgpemv2/string_utils.hh>
#include <cairomm/matrix.h>
#include <cassert>
@ -42,7 +46,6 @@ using namespace sgpem;
using namespace Gtk;
using namespace Glib;
SimulationWidget::SimulationWidget(Simulation& simulation)
: Glib::ObjectBase("sgpem_SimulationWidget"),
SimulationObserver(),
@ -81,12 +84,6 @@ SimulationWidget::SimulationWidget(Simulation& simulation)
// define thread bar height in y units
_yu_thread_bar_height = 1.0;
//
_ready_process_gradient = 0;
_running_process_gradient = 0;
_blocked_process_gradient = 0;
_partial_redraw = false;
_last_drawn = 0;
}
@ -101,9 +98,20 @@ SimulationWidget::~SimulationWidget()
_simulation->detach(*this);
}
void
SimulationWidget::on_realize()
{
CairoWidget::on_realize();
// Register for receiving click events:
RefPtr<Gdk::Window> gdk_win = get_window();
gdk_win->set_events(gdk_win->get_events() | Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
}
void
SimulationWidget::update(const Simulation& /* changed_simulation */ )
{
// FIXME: DEPRECATED. Does nothing.
}
void
@ -132,12 +140,12 @@ SimulationWidget::set_show_threads(bool show)
void
SimulationWidget::draw_widget(cairo_t* ctx)
SimulationWidget::draw_widget(Cairo::RefPtr<Cairo::Context>& ctx)
{
if(_n_proc<1) // nothing to draw
{
cairo_move_to(ctx, 2.0*_x_unit, 2.0*_y_unit);
cairo_show_text(ctx, _("Nothing to see here... add some processes! Right-click on the Schedulables view in this window."));
ctx->move_to(2.0*_x_unit, 2.0*_y_unit);
ctx->show_text(_("Nothing to see here... add some processes! Right-click on the Schedulables view in this window."));
return;
}
@ -148,7 +156,7 @@ SimulationWidget::draw_widget(cairo_t* ctx)
void
SimulationWidget::draw_names(cairo_t* ctx)
SimulationWidget::draw_names(Cairo::RefPtr<Cairo::Context>& ctx)
{
// show processes (and thread) names...
@ -165,11 +173,11 @@ SimulationWidget::draw_names(cairo_t* ctx)
// set a rectangular clip region to cut long names
// - set the rectangle
cairo_rectangle(ctx, 0, top_margin,
ctx->rectangle(0, top_margin,
left_graph_margin - left_margin,
_n_proc*process_height + _n_thr*thread_height);
// - set the clip region
cairo_clip(ctx);
ctx->clip();
// text start position: margin + half of text height
double ypos = top_margin + _y_unit / 2.0;
@ -184,9 +192,9 @@ SimulationWidget::draw_names(cairo_t* ctx)
// move to bar center adding a white row before
ypos += process_bar_spacing + process_bar_height/2.0;
cairo_move_to(ctx, left_margin, ypos);
ctx->move_to(left_margin, ypos);
// show process name
cairo_show_text(ctx,p->get_name().c_str());
ctx->show_text(p->get_name());
// calc position to next row skipping height of process bar
ypos += process_bar_height/2.0;
@ -202,9 +210,9 @@ SimulationWidget::draw_names(cairo_t* ctx)
thr_iter++;
// move to bar center adding white space as needed
ypos += thread_height/2.0;
cairo_move_to(ctx, left_margin+_x_unit, ypos);
ctx->move_to(left_margin+_x_unit, ypos);
// show thread name
cairo_show_text(ctx,t->get_name().c_str());
ctx->show_text(t->get_name());
// calc position to next thread bar begin
ypos += thread_height/2.0; // height of thread bar
@ -216,11 +224,11 @@ SimulationWidget::draw_names(cairo_t* ctx)
} // ~ while(proc_iter!=processes.end())
// remove clip region
cairo_reset_clip(ctx);
ctx->reset_clip();
}
void
SimulationWidget::draw_grid(cairo_t* ctx)
SimulationWidget::draw_grid(Cairo::RefPtr<Cairo::Context>& ctx)
{
const History& hist = _simulation->get_history();
@ -243,8 +251,8 @@ SimulationWidget::draw_grid(cairo_t* ctx)
Process* p = (*proc_iter);
proc_iter++;
// draw one HOR line per process
cairo_move_to(ctx, left_graph_margin, ypos);
cairo_rel_line_to(ctx, graph_width, 0);
ctx->move_to(left_graph_margin, ypos);
ctx->rel_line_to(graph_width, 0);
// calc next line position
ypos += process_height; // skip a process heigh
@ -257,69 +265,69 @@ SimulationWidget::draw_grid(cairo_t* ctx)
} // ~ while(proc_iter!=processes.end())
// draw last HOR line
cairo_move_to(ctx, left_graph_margin, ypos);
cairo_rel_line_to(ctx, graph_width, 0);
ctx->move_to(left_graph_margin, ypos);
ctx->rel_line_to(graph_width, 0);
// - draw left VER line
cairo_move_to(ctx, left_graph_margin, top_margin);
cairo_rel_line_to(ctx, 0, graph_height);
ctx->move_to(left_graph_margin, top_margin);
ctx->rel_line_to(0, graph_height);
// right close the graph only if simulation stopped
if(_simulation->get_state()==Simulation::state_stopped)
{
// - draw right VER line
cairo_move_to(ctx, left_graph_margin + graph_width, top_margin);
cairo_rel_line_to(ctx, 0, graph_height);
ctx->move_to(left_graph_margin + graph_width, top_margin);
ctx->rel_line_to(0, graph_height);
}
// trace lines on output context
cairo_stroke(ctx);
ctx->stroke();
// Draw a grey vertical line every fifth step
cairo_save(ctx);
cairo_set_line_width(ctx, 0.125 * cairo_get_line_width(ctx));
cairo_set_source_rgb(ctx, 0.3, 0.3, 0.3);
ctx->save();
ctx->set_line_width(0.125 * ctx->get_line_width());
ctx->set_source_rgb(0.3, 0.3, 0.3);
for(double step = _x_unit; step < graph_width - _x_unit; step += 5 * _x_unit)
{
cairo_new_path(ctx);
cairo_move_to(ctx, left_graph_margin + step, top_margin);
cairo_rel_line_to(ctx, 0, graph_height);
cairo_stroke(ctx);
ctx->begin_new_path();
ctx->move_to(left_graph_margin + step, top_margin);
ctx->rel_line_to(0, graph_height);
ctx->stroke();
}
cairo_restore(ctx);
ctx->restore();
// draw and write time line
cairo_save(ctx);
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_set_line_width(ctx, 0.25*cairo_get_line_width(ctx));
ctx->save();
ctx->set_source_rgb(0, 0, 0);
ctx->set_line_width(0.25*ctx->get_line_width());
// "T" label
cairo_move_to(ctx, left_graph_margin,
ctx->move_to(left_graph_margin,
top_margin + graph_height + 2.0 * _y_unit);
cairo_show_text(ctx,"T");
ctx->show_text("T");
// ruler drawing cycle
for(unsigned int t=0; t<=hist_front; t++)
{
// tick
cairo_move_to(ctx, left_graph_margin + (t+1)*_x_unit,
ctx->move_to(left_graph_margin + (t+1)*_x_unit,
top_margin + graph_height);
cairo_rel_line_to(ctx, 0, 0.5 * _y_unit);
ctx->rel_line_to(0, 0.5 * _y_unit);
// value
Glib::ustring val;
to_string<int>(t, val);
cairo_move_to(ctx, left_graph_margin + (t+1)*_x_unit,
ctx->move_to(left_graph_margin + (t+1)*_x_unit,
top_margin + graph_height + 2.0 * _y_unit);
cairo_show_text(ctx,val.c_str());
ctx->show_text(val);
} // ~ for(int t=0; t<=pos; t++)
cairo_stroke(ctx);
cairo_restore(ctx);
ctx->stroke();
ctx->restore();
}
void
SimulationWidget::draw_bars(cairo_t* ctx)
SimulationWidget::draw_bars(Cairo::RefPtr<Cairo::Context>& ctx)
{
// useful constants
const History& hist = _simulation->get_history();
@ -408,53 +416,50 @@ SimulationWidget::draw_bars(cairo_t* ctx)
// draw single rectangle using gradients
void
SimulationWidget::draw_instant_rect(cairo_t* ctx, double x, double y,
SimulationWidget::draw_instant_rect(Cairo::RefPtr<Cairo::Context>& ctx, double x, double y,
double w, double h, Schedulable::state state)
{
cairo_matrix_t matrix;
using namespace Cairo;
switch(state)
{
case Schedulable::state_running:
cairo_save(ctx);
cairo_set_source(ctx, _running_process_gradient);
ctx->save();
ctx->set_source(_running_process_gradient);
// translate the gradient at desired position
cairo_matrix_init_translate(&matrix, 0, -y);
cairo_pattern_set_matrix (_running_process_gradient, &matrix);
_running_process_gradient->set_matrix(translation_matrix(0, -y));
// put the filled rectangle
cairo_rectangle(ctx, x, y, w, h);
cairo_fill(ctx);
cairo_restore(ctx);
ctx->rectangle(x, y, w, h);
ctx->fill();
ctx->restore();
break;
case Schedulable::state_ready:
cairo_save(ctx);
cairo_set_source(ctx, _ready_process_gradient);
ctx->save();
ctx->set_source(_ready_process_gradient);
// translate the gradient at desired position
cairo_matrix_init_translate(&matrix, 0, -y);
cairo_pattern_set_matrix (_ready_process_gradient, &matrix);
_ready_process_gradient->set_matrix(translation_matrix(0, -y));
// put the filled rectangle
cairo_rectangle(ctx, x, y, w, h);
cairo_fill(ctx);
cairo_restore(ctx);
ctx->rectangle(x, y, w, h);
ctx->fill();
ctx->restore();
break;
case Schedulable::state_blocked:
cairo_save(ctx);
cairo_set_source(ctx, _blocked_process_gradient);
ctx->save();
ctx->set_source(_blocked_process_gradient);
// translate the gradient at desired position
cairo_matrix_init_translate(&matrix, 0, -y);
cairo_pattern_set_matrix (_blocked_process_gradient, &matrix);
_blocked_process_gradient->set_matrix(translation_matrix(0, -y));
// put the filled rectangle
cairo_rectangle(ctx, x, y, w, h);
cairo_fill(ctx);
cairo_restore(ctx);
ctx->rectangle(x, y, w, h);
ctx->fill();
ctx->restore();
break;
case Schedulable::state_future:
@ -469,7 +474,7 @@ SimulationWidget::draw_instant_rect(cairo_t* ctx, double x, double y,
void
SimulationWidget::calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height)
SimulationWidget::calc_drawing_size(Cairo::RefPtr<Cairo::Context>& ctx, size_t& width, size_t& height)
{
if(!_simulation)
return;
@ -480,9 +485,9 @@ SimulationWidget::calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height)
int pos = _simulation->get_history().get_front();
// units are defined in terms of text dimensions
cairo_text_extents_t extents;
Cairo::TextExtents extents;
Glib::ustring val("999");
cairo_text_extents(ctx, val.c_str(), &extents);
ctx->get_text_extents(val, extents);
if(_x_unit < extents.width)
_x_unit = extents.width;
if(_y_unit < extents.height)
@ -533,24 +538,25 @@ SimulationWidget::make_gradients()
{
// linear gradients are referred to 0, 0
// must be translated if used elsewhere
using Cairo::LinearGradient;
_ready_process_gradient = cairo_pattern_create_linear(0, 0, 0, _yu_process_bar_height * _y_unit);
_ready_process_gradient = LinearGradient::create(0, 0, 0, _yu_process_bar_height * _y_unit);
// yellow
cairo_pattern_add_color_stop_rgb(_ready_process_gradient, 0.0, 1.00, 0.7, 0.0);
cairo_pattern_add_color_stop_rgb(_ready_process_gradient, 0.3, 1.00, 0.9, 0.0);
cairo_pattern_add_color_stop_rgb(_ready_process_gradient, 1.0, 1.00, 0.7, 0.0);
_ready_process_gradient->add_color_stop_rgb(0.0, 1.00, 0.7, 0.0);
_ready_process_gradient->add_color_stop_rgb(0.3, 1.00, 0.9, 0.0);
_ready_process_gradient->add_color_stop_rgb(1.0, 1.00, 0.7, 0.0);
_running_process_gradient = cairo_pattern_create_linear(0, 0, 0, _yu_process_bar_height * _y_unit);
_running_process_gradient = LinearGradient::create(0, 0, 0, _yu_process_bar_height * _y_unit);
// green
cairo_pattern_add_color_stop_rgb(_running_process_gradient, 0.0, 0.0, 0.8, 0.0);
cairo_pattern_add_color_stop_rgb(_running_process_gradient, 0.3, 0.0, 1.0, 0.0);
cairo_pattern_add_color_stop_rgb(_running_process_gradient, 1.0, 0.0, 0.65, 0.0);
_running_process_gradient->add_color_stop_rgb(0.0, 0.0, 0.8, 0.0);
_running_process_gradient->add_color_stop_rgb(0.3, 0.0, 1.0, 0.0);
_running_process_gradient->add_color_stop_rgb(1.0, 0.0, 0.65, 0.0);
_blocked_process_gradient = cairo_pattern_create_linear(0, 0, 0, _yu_process_bar_height * _y_unit);
_blocked_process_gradient = LinearGradient::create(0, 0, 0, _yu_process_bar_height * _y_unit);
// red
cairo_pattern_add_color_stop_rgb(_blocked_process_gradient, 0.0, 0.85, 0.0, 0.0);
cairo_pattern_add_color_stop_rgb(_blocked_process_gradient, 0.3, 1.0, 0.5, 0.5);
cairo_pattern_add_color_stop_rgb(_blocked_process_gradient, 1.0, 0.65, 0.0, 0.0);
_blocked_process_gradient->add_color_stop_rgb(0.0, 0.85, 0.0, 0.0);
_blocked_process_gradient->add_color_stop_rgb(0.3, 1.0, 0.5, 0.5);
_blocked_process_gradient->add_color_stop_rgb(1.0, 0.65, 0.0, 0.0);
}
@ -656,3 +662,5 @@ SimulationWidget::_on_stretch_scaling()
resize_redraw();
// set_size_request (20, 20); // force container redimensioning
}

37
src/simulation_widget.hh
View File

@ -21,12 +21,13 @@
#ifndef SIMULATION_WIDGET_HH
#define SIMULATION_WIDGET_HH 1
#include "cairo_widget.hh"
#include <sgpemv2/history_observer.hh>
#include <sgpemv2/schedulable.hh>
#include <sgpemv2/simulation_observer.hh>
#include "sgpemv2/history_observer.hh"
#include "sgpemv2/schedulable.hh"
#include "sgpemv2/simulation_observer.hh"
#include <cairomm/pattern.h>
namespace sgpem
{
@ -48,7 +49,7 @@ namespace sgpem
*
* At the bottom of the graph there is a time line ruler.
*
* This class implemets a SimulationObserver and HistoryObserver
* This class implements a SimulationObserver and HistoryObserver
* to have an update signal (and related update) every simulation step.
*
* \deprecated The class should implement only HistoryObserver
@ -77,7 +78,7 @@ namespace sgpem
/**
* \brief SimulationObserver's update method redefinition.
*
* Actually is a dummy method.
* \deprecated Actually is a dummy method.
*
* \param changed_simulation the observed Simulation
*/
@ -127,7 +128,7 @@ namespace sgpem
* \param ctx the cairo context to draw to
* \see CairoWidget for more.
*/
void draw_widget(cairo_t* ctx);
void draw_widget(Cairo::RefPtr<Cairo::Context>& ctx);
/**
* \brief calculated the needed drawing surface dimensions.
@ -136,8 +137,12 @@ namespace sgpem
* \param width the return parameter for desired width
* \param height the return parameter for desired height
*/
virtual void calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height);
virtual void calc_drawing_size(Cairo::RefPtr<Cairo::Context>& ctx, size_t& width, size_t& height);
/**
* \brief Adds the click events to the underlying Gdk::Window
*/
virtual void on_realize();
private:
@ -152,21 +157,21 @@ namespace sgpem
*
* \param ctx the cairo context to draw to
*/
void draw_names(cairo_t* ctx);
void draw_names(Cairo::RefPtr<Cairo::Context>& ctx);
/**
* \brief Used internally by draw_widget to show the bars container grid.
*
* \param ctx the cairo context to draw to
*/
void draw_grid(cairo_t* ctx);
void draw_grid(Cairo::RefPtr<Cairo::Context>& ctx);
/**
* \brief Used internally by draw_widget to show processes/threads bars.
*
* \param ctx the cairo context to draw to
*/
void draw_bars(cairo_t* ctx);
void draw_bars(Cairo::RefPtr<Cairo::Context>& ctx);
/**
* \brief Used internally by draw_widget to build the bars.
@ -178,7 +183,7 @@ namespace sgpem
* \param h height of rectangle
* \param state select the color to apply
*/
void draw_instant_rect(cairo_t* ctx, double x, double y,
void draw_instant_rect(Cairo::RefPtr<Cairo::Context>& ctx, double x, double y,
double w, double h, sgpem::Schedulable::state state);
/**
@ -284,17 +289,17 @@ namespace sgpem
/**
* \brief Gradient used to draw ready processes/threads.
*/
cairo_pattern_t* _ready_process_gradient;
Cairo::RefPtr<Cairo::Gradient> _ready_process_gradient;
/**
* \brief Gradient used to draw running processes/threads.
*/
cairo_pattern_t* _running_process_gradient;
Cairo::RefPtr<Cairo::Gradient> _running_process_gradient;
/**
* \brief Gradient used to draw blocked processes/threads.
*/
cairo_pattern_t* _blocked_process_gradient;
Cairo::RefPtr<Cairo::Gradient> _blocked_process_gradient;
/**
* Used to redraw partially the widget.

28
src/testsuite/test-cairo_widget.cc
View File

@ -56,10 +56,10 @@ namespace sgpem
protected:
virtual bool on_button_press_event(GdkEventButton* event);
void draw_widget(cairo_t* ctx);
void draw_widget(Cairo::RefPtr<Cairo::Context>& ctx);
void change_scaling_mode();
virtual void calc_drawing_size(cairo_t* ctx, size_t& width, size_t& height);
virtual void calc_drawing_size(Cairo::RefPtr<Cairo::Context>& ctx, size_t& width, size_t& height);
private:
int _desired_w;
int _desired_h;
@ -90,13 +90,13 @@ TestWidget::on_button_press_event(GdkEventButton*)
}
void
TestWidget::draw_widget(cairo_t* ctx)
TestWidget::draw_widget(Cairo::RefPtr<Cairo::Context>& ctx)
{
// show line
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_move_to(ctx, 0, 0);
cairo_line_to(ctx, _desired_w, _desired_w);
cairo_stroke(ctx);
ctx->set_source_rgb(0, 0, 0);
ctx->move_to(0, 0);
ctx->line_to(_desired_w, _desired_w);
ctx->stroke();
// NOTE: just to try
CairoElements ce(ctx);
@ -138,20 +138,16 @@ TestWidget::draw_widget(cairo_t* ctx)
msg = "scaling_all = scale to stretch into client area";
break;
}
cairo_move_to(ctx, 10, 10);
cairo_show_text(ctx,msg.c_str());
ctx->move_to(10, 10);
ctx->show_text(msg);
msg = "clic to change mode...";
cairo_move_to(ctx, 10, 30);
cairo_show_text(ctx,msg.c_str());
ctx->move_to(10, 30);
ctx->show_text(msg);
}
void
TestWidget::calc_drawing_size(cairo_t*, size_t& width, size_t& height)
TestWidget::calc_drawing_size(Cairo::RefPtr<Cairo::Context>&, size_t& width, size_t& height)
{
width = _desired_w;
height = _desired_h;