Robin Gareus
10253a6ae4
Since fc90c92a49 Gtkmm2ext::random_color () uses g_random_int()
which is implicitly seeded when first used.
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
#include <iostream>
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#include <gtkmm/adjustment.h>
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#include <gtkmm/main.h>
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#include <gtkmm/window.h>
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#include "gtkmm2ext/colors.h"
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#include "canvas/box.h"
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#include "canvas/canvas.h"
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#include "canvas/circle.h"
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#include "canvas/constrained_item.h"
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#include "canvas/constraint_packer.h"
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#include "canvas/rectangle.h"
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#include "canvas/text.h"
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using namespace ArdourCanvas;
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using namespace Gtk;
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using std::cerr;
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using std::endl;
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int
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main (int argc, char* argv[])
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{
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Gtk::Main app (&argc, &argv);
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Gtk::Window win;
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Gtk::Adjustment hadj (0, 0, 1000, 1, 10);
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Gtk::Adjustment vadj (0, 0, 1000, 1, 10);
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GtkCanvasViewport cview (hadj, vadj);
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Canvas* c = cview.canvas ();
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c->set_background_color (0xffffffff);
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cview.set_size_request (100, 100);
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win.add (cview);
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Rectangle* r1 = new Rectangle (c);
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Rectangle* r2 = new Rectangle (c);
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Rectangle* r3 = new Rectangle (c);
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r1->set_fill_color (Gtkmm2ext::random_color());
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r2->set_fill_color (Gtkmm2ext::random_color());
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r3->set_fill_color (Gtkmm2ext::random_color());
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r1->name = "r1";
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r2->name = "r2";
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r3->name = "r3";
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r1->set_size_request (20, 20);
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r2->set_size_request (30, 30);
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r3->set_size_request (40, 40);
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ConstraintPacker* packer = new ConstraintPacker (c->root());
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ConstrainedItem* left = packer->add_constrained (r1);
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ConstrainedItem* right = packer->add_constrained (r2);
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ConstrainedItem* center = packer->add_constrained (r3);
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/* x-axis */
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packer->constrain (left->left() == 0);
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packer->constrain (center->left() == left->right());
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packer->constrain (right->left() == center->right());
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packer->constrain (left->width() == packer->width * 0.4);
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packer->constrain (center->width() == packer->width * 0.1);
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packer->constrain (left->width() + right->width() + center->width() == packer->width);
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packer->constrain (left->right() == left->left() + left->width());
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packer->constrain (right->right() == right->left() + right->width());
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packer->constrain (center->right() == center->left() + center->width());
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/* y-axis */
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packer->constrain (left->top() == 0);
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packer->constrain (right->top() == left->top());
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packer->constrain (center->top() == left->top());
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packer->constrain (left->height() == packer->height);
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packer->constrain (right->height() == left->height());
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packer->constrain (center->height() == left->height());
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packer->constrain (left->bottom() == left->top() + left->height());
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packer->constrain (center->bottom() == center->top() + center->height());
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packer->constrain (right->bottom() == right->top() + right->height());
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win.show_all ();
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app.run ();
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return 0;
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}
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