Start drawing...
authorNils Faerber <nils.faerber@kernelconcepts.de>
Tue, 31 Jul 2012 19:28:08 +0000 (21:28 +0200)
committerNils Faerber <nils.faerber@kernelconcepts.de>
Tue, 31 Jul 2012 19:28:08 +0000 (21:28 +0200)
ui/oswald-ui.c

index fbaf37c..2e9312a 100644 (file)
 
 
 typedef struct {
-       GtkWidget *main_win;
+       GtkWidget *mainwin;
+       GtkDrawingArea *darea;
+       GdkPixmap *pixmap;
 } oswald_ui;
 
 
+
+void set_pixel(oswald_ui *ui, gint x, gint y, gboolean state)
+{
+       GdkRectangle update_rect;
+       GdkGC *gc;
+       gint ix, iy;
+
+       ix = x*2;
+       iy = y*2;
+
+       update_rect.x = ix - 5;
+       update_rect.y = iy - 5;
+       update_rect.width = 10;
+       update_rect.height = 10;
+
+       gdk_draw_point(GDK_DRAWABLE(ui->pixmap), state ? ui->mainwin->style->black_gc : ui->mainwin->style->white_gc, ix, iy);
+       gdk_draw_point(GDK_DRAWABLE(ui->pixmap), state ? ui->mainwin->style->black_gc : ui->mainwin->style->white_gc, ix+1, iy);
+       gdk_draw_point(GDK_DRAWABLE(ui->pixmap), state ? ui->mainwin->style->black_gc : ui->mainwin->style->white_gc, ix, iy+1);
+       gdk_draw_point(GDK_DRAWABLE(ui->pixmap), state ? ui->mainwin->style->black_gc : ui->mainwin->style->white_gc, ix+1, iy+1);
+
+       gtk_widget_draw (GTK_WIDGET(ui->darea), &update_rect);
+}
+
+static gint
+configure_event (GtkWidget *widget, GdkEventConfigure *event, gpointer user_data)
+{
+       oswald_ui *ui = (oswald_ui *)user_data;
+
+       if (ui->pixmap)
+               gdk_pixmap_unref(ui->pixmap);
+
+       ui->pixmap = gdk_pixmap_new(widget->window,
+               widget->allocation.width,
+               widget->allocation.height,
+               -1);
+       gdk_draw_rectangle (ui->pixmap,
+               widget->style->white_gc,
+               TRUE,
+               0, 0,
+               widget->allocation.width,
+               widget->allocation.height);
+
+       return TRUE;
+}
+
+static gint
+expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
+{
+       oswald_ui *ui = (oswald_ui *)user_data;
+
+       gdk_draw_pixmap(widget->window,
+               widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
+               ui->pixmap,
+               event->area.x, event->area.y,
+               event->area.x, event->area.y,
+               event->area.width, event->area.height);
+
+       return FALSE;
+}
+
+static void create_mainwin(oswald_ui *ui)
+{
+       GtkWidget *hb, *vb, *btn;
+
+       ui->pixmap = NULL;
+
+       ui->mainwin = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+       // gtk_window_set_default_size (GTK_WINDOW (ui->mainwin), 440, 240);
+       g_signal_connect(G_OBJECT(ui->mainwin), "destroy", gtk_main_quit, NULL);
+
+       hb = gtk_hbox_new(FALSE, 5);
+       gtk_container_add(GTK_CONTAINER(ui->mainwin), hb);
+
+       vb = gtk_vbox_new(FALSE, 5);
+       gtk_box_pack_start (GTK_BOX(hb), vb, FALSE, FALSE, 5);
+
+       btn = gtk_button_new_with_label("D");
+       gtk_box_pack_start (GTK_BOX(vb), btn, FALSE, FALSE, 10);
+
+       btn = gtk_button_new_with_label("E");
+       gtk_box_pack_start (GTK_BOX(vb), btn, FALSE, FALSE, 10);
+
+       btn = gtk_button_new_with_label("F");
+       gtk_box_pack_start (GTK_BOX(vb), btn, FALSE, FALSE, 10);
+
+       ui->darea = (GtkDrawingArea *)gtk_drawing_area_new ();
+       gtk_box_pack_start (GTK_BOX(hb), GTK_WIDGET(ui->darea), FALSE, FALSE, 5);
+       gtk_drawing_area_size (ui->darea, 192, 192);
+
+       gtk_signal_connect (GTK_OBJECT (ui->darea), "expose_event", (GtkSignalFunc) expose_event, ui);
+       gtk_signal_connect (GTK_OBJECT (ui->darea), "configure_event", (GtkSignalFunc) configure_event, ui);
+       // gtk_signal_connect (GTK_OBJECT (drawing_area), "motion_notify_event", (GtkSignalFunc) motion_notify_event, ui);
+       // gtk_signal_connect (GTK_OBJECT (drawing_area), "button_press_event", (GtkSignalFunc) button_press_event, ui);
+
+       gtk_widget_set_events (GTK_WIDGET(ui->darea), GDK_EXPOSURE_MASK
+               | GDK_LEAVE_NOTIFY_MASK
+               | GDK_BUTTON_PRESS_MASK
+               | GDK_POINTER_MOTION_MASK
+               | GDK_POINTER_MOTION_HINT_MASK);
+
+       vb = gtk_vbox_new(FALSE, 5);
+       gtk_box_pack_start (GTK_BOX(hb), vb, FALSE, FALSE, 5);
+
+       btn = gtk_button_new_with_label("A");
+       gtk_box_pack_start (GTK_BOX(vb), btn, FALSE, FALSE, 10);
+
+       btn = gtk_button_new_with_label("B");
+       gtk_box_pack_start (GTK_BOX(vb), btn, FALSE, FALSE, 10);
+
+       btn = gtk_button_new_with_label("C");
+       gtk_box_pack_start (GTK_BOX(vb), btn, FALSE, FALSE, 10);
+
+       gtk_widget_show_all(ui->mainwin);
+}
+
+int main(int argc , char ** argv)
+{
+       oswald_ui ui;
+
+       gtk_init (&argc, &argv);
+
+       create_mainwin(&ui);
+
+       set_pixel(&ui, 48, 48, TRUE);
+
+       gtk_main ();
+       return 0;
+}
+