130 lines
3.5 KiB
C++
130 lines
3.5 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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srandom (time ((time_t) 0));
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win.add (cview);
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/* Make some items */
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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 = "L";
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r2->name = "R";
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r3->name = "C";
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r1->set_intrinsic_size (20, 20);
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r2->set_intrinsic_size (30, 30);
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r3->set_intrinsic_size (40, 40);
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Text* txt = new Text (c);
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txt->name = "text";
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Pango::FontDescription font ("Sans");
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txt->set_font_description (font);
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txt->set ("hello world");
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Rectangle* bb = new Rectangle (c);
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bb->set_fill_color (Gtkmm2ext::random_color());
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Circle* circ = new Circle (c);
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circ->name = "circle";
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circ->set_fill_color (Gtkmm2ext::random_color());
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circ->set_outline_color (Gtkmm2ext::random_color());
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/* create a container */
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ConstraintPacker* packer = new ConstraintPacker (c->root());
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/* give it a minimum size */
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packer->set_intrinsic_size (100, 100);
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/* add stuff */
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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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ConstrainedItem* text = packer->add_constrained (txt);
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ConstrainedItem* bens_box = packer->add_constrained (bb);
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ConstrainedItem* circle = packer->add_constrained (circ);
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/* first, constraints that connect an item dimension to the container dimensions or a constant */
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packer->constrain (left->left() == 0);
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packer->constrain (left->height() == packer->height);
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packer->constrain (left->top() == 0);
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packer->constrain (left->width() == 0.5 * packer->width);
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packer->constrain (right->right() == packer->width);
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packer->constrain (center->height() == 0.5 * packer->height);
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/* second, constraints that connect an item dimension to other items */
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center->right_of (*left, 50);
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right->right_of (*center);
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center->same_width_as (*right);
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right->same_width_as (*center);
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right->same_height_as (*left);
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center->top_aligned_with (*left);
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right->top_aligned_with (*center);
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/* XXX this needs to somehow move into ConstraintPacker but I currently
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* see no way to build a constraint from a container of
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* ConstrainedItems
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*/
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packer->constrain (left->width() + right->width() + center->width() +
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left->left_padding() + left->right_padding() +
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center->left_padding() + center->right_padding() +
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right->left_padding() + right->right_padding()
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== packer->width);
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/* Text at a fixed position */
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text->at (Duple (150, 50));
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/* Rectangle of fixed position and size */
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bens_box->box (Rect (40, 40, 80, 80));
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/* a circle sized and centered */
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circle->size (Duple (30, 30));
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circle->centered_on (*center);
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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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