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livetrax/libs/canvas/constraint_test3.cc

96 lines
2.6 KiB
C++

#include <iostream>
#include <gtkmm/adjustment.h>
#include <gtkmm/main.h>
#include <gtkmm/window.h>
#include "gtkmm2ext/colors.h"
#include "canvas/box.h"
#include "canvas/canvas.h"
#include "canvas/circle.h"
#include "canvas/constrained_item.h"
#include "canvas/constraint_packer.h"
#include "canvas/rectangle.h"
#include "canvas/text.h"
using namespace ArdourCanvas;
using namespace Gtk;
using std::cerr;
using std::endl;
int
main (int argc, char* argv[])
{
Gtk::Main app (&argc, &argv);
Gtk::Window win;
Gtk::Adjustment hadj (0, 0, 1000, 1, 10);
Gtk::Adjustment vadj (0, 0, 1000, 1, 10);
GtkCanvasViewport cview (hadj, vadj);
Canvas* c = cview.canvas ();
c->set_background_color (0xffffffff);
srandom (time ((time_t) 0));
cview.set_size_request (100, 100);
win.add (cview);
Rectangle* r1 = new Rectangle (c);
Rectangle* r2 = new Rectangle (c);
Rectangle* r3 = new Rectangle (c);
r1->set_fill_color (Gtkmm2ext::random_color());
r2->set_fill_color (Gtkmm2ext::random_color());
r3->set_fill_color (Gtkmm2ext::random_color());
r1->name = "r1";
r2->name = "r2";
r3->name = "r3";
r1->set_size_request (20, 20);
r2->set_size_request (30, 30);
r3->set_size_request (40, 40);
ConstraintPacker* packer = new ConstraintPacker (c->root());
ConstrainedItem* left = packer->add_constrained (r1);
ConstrainedItem* right = packer->add_constrained (r2);
ConstrainedItem* center = packer->add_constrained (r3);
/* x-axis */
packer->constrain (left->left() == 0);
packer->constrain (center->left() == left->right());
packer->constrain (right->left() == center->right());
packer->constrain (left->width() == packer->width * 0.4);
packer->constrain (center->width() == packer->width * 0.1);
packer->constrain (left->width() + right->width() + center->width() == packer->width);
packer->constrain (left->right() == left->left() + left->width());
packer->constrain (right->right() == right->left() + right->width());
packer->constrain (center->right() == center->left() + center->width());
/* y-axis */
packer->constrain (left->top() == 0);
packer->constrain (right->top() == left->top());
packer->constrain (center->top() == left->top());
packer->constrain (left->height() == packer->height);
packer->constrain (right->height() == left->height());
packer->constrain (center->height() == left->height());
packer->constrain (left->bottom() == left->top() + left->height());
packer->constrain (center->bottom() == center->top() + center->height());
packer->constrain (right->bottom() == right->top() + right->height());
win.show_all ();
app.run ();
return 0;
}