4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "bcdragwindow.h"
29 BC_DragWindow::BC_DragWindow(BC_WindowBase *parent_window,
30 BC_Pixmap *pixmap, int center_x, int center_y)
31 : BC_Popup(parent_window,
32 center_x - pixmap->get_w() / 2, center_y - pixmap->get_h() / 2,
33 pixmap->get_w(), pixmap->get_h(), -1, 0,
34 prepare_pixmap(pixmap, parent_window))
45 BC_DragWindow::BC_DragWindow(BC_WindowBase *parent_window,
46 VFrame *frame, int center_x, int center_y)
47 : BC_Popup(parent_window,
48 center_x - frame->get_w() / 2, center_y - frame->get_h() / 2,
49 frame->get_w(), frame->get_h(), -1, 0,
50 prepare_frame(frame, parent_window))
59 BC_DragWindow::~BC_DragWindow()
64 int BC_DragWindow::cursor_motion_event()
67 get_abs_cursor(cx, cy);
70 reposition_window(cx, cy, get_w(), get_h());
74 int BC_DragWindow::button_release_event()
76 cursor_motion_event();
78 return BC_WindowBase::button_release_event();
81 int BC_DragWindow::drag_failure_event()
83 if(!do_animation) return 0;
85 if(end_x == BC_INFINITY) {
90 for(int i = 0; i < 10; i++) {
91 int new_x = end_x + (init_x - end_x) * i / 10;
92 int new_y = end_y + (init_y - end_y) * i / 10;
94 reposition_window(new_x, new_y, get_w(), get_h());
101 void BC_DragWindow::set_animation(int value)
103 this->do_animation = value;
106 BC_Pixmap *BC_DragWindow::prepare_frame(VFrame *frame, BC_WindowBase *parent_window)
108 VFrame *temp_frame = frame;
109 int tw = frame->get_w(), th = frame->get_h();
111 if( frame->get_color_model() != BC_RGBA8888 ) {
112 temp_frame = new VFrame(tw, th, BC_RGBA8888, 0);
113 temp_frame->transfer_from(frame);
116 int tx = tw/2, ty = th/2, tx1 = tx-1, ty1 = ty-1, tx2 = tx+2, ty2 = ty+2;
117 int bpp = BC_CModels::calculate_pixelsize(temp_frame->get_color_model());
118 unsigned char **rows = temp_frame->get_rows();
119 for( int y=ty1; y<ty2; ++y ) {
120 for( int x=tx1; x<tx2; ++x ) {
121 unsigned char *rp = rows[y] + x*bpp;
122 rp[3] = 0; // alpha of center pixels = 0
125 drag_pixmap = new BC_Pixmap(parent_window, temp_frame, PIXMAP_ALPHA);
127 if( temp_frame != frame )
132 BC_Pixmap *BC_DragWindow::prepare_pixmap(BC_Pixmap *pixmap, BC_WindowBase *parent_window)
134 int pix_w = pixmap->get_w(), pix_h = pixmap->get_h();
135 BC_Bitmap bitmap(parent_window, pix_w, pix_h, BC_RGB888, 0);
136 Pixmap xpixmap = pixmap->get_pixmap();
137 VFrame frame(pix_w, pix_h, BC_RGB888);
138 bitmap.read_drawable(xpixmap, 0,0,&frame);
139 return prepare_frame(&frame, parent_window);