X-Git-Url: https://git.cinelerra-gg.org/git/?p=goodguy%2Fcinelerra.git;a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fbcdragbox.C;fp=cinelerra-5.1%2Fguicast%2Fbcdragbox.C;h=10a39d968474b966febfcffde6b34d8a8a19232d;hp=0000000000000000000000000000000000000000;hb=b4017f68039ef7e31eedee4a27580a28bee36fc5;hpb=c4c898707e3fdbf2979b7bc43ac0e1b0fa779663

diff --git a/cinelerra-5.1/guicast/bcdragbox.C b/cinelerra-5.1/guicast/bcdragbox.C
new file mode 100644
index 00000000..10a39d96
--- /dev/null
+++ b/cinelerra-5.1/guicast/bcdragbox.C
@@ -0,0 +1,148 @@
+#include "bcdragbox.h"
+#include "bcmenuitem.h"
+#include "bctimer.h"
+#include "bcwindowbase.h"
+#include "colors.h"
+
+BC_DragBox::BC_DragBox(BC_WindowBase *parent)
+ : Thread(1, 0, 0)
+{
+	this->parent = parent;
+	popup = 0;
+	done = -1;
+}
+BC_DragBox::~BC_DragBox()
+{
+	if( running() ) {
+		done = 1;
+		cancel();
+	}
+	join();
+	delete popup;
+}
+
+void BC_DragBox::start_drag()
+{
+	popup = new BC_DragBoxPopup(this);
+	popup->lock_window("BC_DragBox::start");
+	for( int i=0; i<4; ++i )
+		edge[i] = new BC_Popup(parent, 0,0, 1,1, ORANGE, 1);
+	parent->grab_buttons();
+	parent->grab_cursor();
+	popup->grab(parent);
+	popup->create_objects();
+	popup->show_window();
+	popup->unlock_window();
+	done = 0;
+	Thread::start();
+}
+
+void BC_DragBox::run()
+{
+	popup->lock_window("BC_DragBox::run 0");
+	while( !done ) {
+		popup->update();
+		popup->unlock_window();
+		enable_cancel();
+		Timer::delay(200);
+		disable_cancel();
+		popup->lock_window("BC_DragBox::run 1");
+	}
+	int x0 = popup->lx0, y0 = popup->ly0;
+	int x1 = popup->lx1, y1 = popup->ly1;
+	parent->ungrab_cursor();
+	parent->ungrab_buttons();
+	popup->ungrab(parent);
+	for( int i=0; i<4; ++i ) delete edge[i];
+	popup->unlock_window();
+	delete popup;  popup = 0;
+	handle_done_event(x0, y0, x1, y1);
+}
+
+BC_DragBoxPopup::BC_DragBoxPopup(BC_DragBox *grab_thread)
+ : BC_Popup(grab_thread->parent, 0,0, 16,16, -1,1)
+{
+	this->grab_thread = grab_thread;
+	dragging = -1;
+	grab_color = ORANGE;
+	x0 = y0 = x1 = y1 = -1;
+	lx0 = ly0 = lx1 = ly1 = -1;
+}
+
+BC_DragBoxPopup::~BC_DragBoxPopup()
+{
+}
+
+int BC_DragBoxPopup::grab_event(XEvent *event)
+{
+	int cur_drag = dragging;
+	switch( event->type ) {
+	case ButtonPress: {
+		if( cur_drag > 0 ) return 1;
+		int x0 = event->xbutton.x_root;
+		int y0 = event->xbutton.y_root;
+		if( !cur_drag ) {
+			draw_selection(-1);
+			if( event->xbutton.button == RIGHT_BUTTON ) break;
+			if( x0>=get_x() && x0<get_x()+get_w() &&
+			    y0>=get_y() && y0<get_y()+get_h() ) break;
+		}
+		this->x0 = this->x1 = x0;
+		this->y0 = this->y1 = y0;
+		draw_selection(1);
+		dragging = 1;
+		return 1; }
+	case ButtonRelease:
+		dragging = 0;
+	case MotionNotify:
+		if( cur_drag > 0 ) {
+			this->x1 = event->xbutton.x_root;
+			this->y1 = event->xbutton.y_root;
+			draw_selection(0);
+		}
+		return 1;
+	default:
+		return 0;
+	}
+
+	hide_window();
+	sync_display();
+	grab_thread->done = 1;
+	return 1;
+}
+
+void BC_DragBoxPopup::update()
+{
+	set_color(grab_color ^= GREEN);
+	draw_box(0,0, get_w(),get_h());
+	flash(1);
+}
+
+void BC_DragBoxPopup::draw_selection(int show)
+{
+	if( show < 0 ) {
+		for( int i=0; i<4; ++i ) hide_window(0);
+		flush();
+		return;
+	}
+
+	int nx0 = x0 < x1 ? x0 : x1;
+	int nx1 = x0 < x1 ? x1 : x0;
+	int ny0 = y0 < y1 ? y0 : y1;
+	int ny1 = y0 < y1 ? y1 : y0;
+	lx0 = nx0;  lx1 = nx1;
+	ly0 = ny0;  ly1 = ny1;
+
+	--nx0;  --ny0;
+	BC_Popup **edge = grab_thread->edge;
+	edge[0]->reposition_window(nx0,ny0, nx1-nx0, 1);
+	edge[1]->reposition_window(nx1,ny0, 1, ny1-ny0);
+	edge[2]->reposition_window(nx0,ny1, nx1-nx0, 1);
+	edge[3]->reposition_window(nx0,ny0, 1, ny1-ny0);
+
+	if( show > 0 ) {
+		for( int i=0; i<4; ++i ) edge[i]->show_window(0);
+	}
+	flush();
+}
+