bcdragwindow.C

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#include "bcdragwindow.h"
#include "bcpixmap.h"

#include "vframe.h"
#include <unistd.h>

BC_DragWindow::BC_DragWindow(BC_WindowBase *parent_window, 
        BC_Pixmap *pixmap, 
        int icon_x, 
        int icon_y)
 : BC_Popup(parent_window, 
        icon_x, 
        icon_y,
        pixmap->get_w(),
        pixmap->get_h(),
        -1,
        0,
        pixmap)
{
        init_x = icon_x;
        init_y = icon_y;
        end_x = BC_INFINITY;
        end_y = BC_INFINITY;
        icon_offset_x = init_x - parent_window->get_abs_cursor_x(0);
        icon_offset_y = init_y - parent_window->get_abs_cursor_y(0);
//printf("BC_DragWindow::BC_DragWindow 1 %d %d\n", icon_offset_x, icon_offset_y);
        do_animation = 1;
}


BC_DragWindow::BC_DragWindow(BC_WindowBase *parent_window, 
        VFrame *frame, 
        int icon_x, 
        int icon_y)
 : BC_Popup(parent_window, 
        icon_x, 
        icon_y,
        frame->get_w(),
        frame->get_h(),
        -1,
        0,
        prepare_frame(frame, parent_window))
{
        delete temp_frame;  // created in prepare_frame inside constructor
        init_x = icon_x;
        init_y = icon_y;
        end_x = BC_INFINITY;
        end_y = BC_INFINITY;
        icon_offset_x = init_x - parent_window->get_abs_cursor_x(0);
        icon_offset_y = init_y - parent_window->get_abs_cursor_y(0);
//printf("BC_DragWindow::BC_DragWindow 1 %d %d\n", icon_offset_x, icon_offset_y);
        do_animation = 1;
}

BC_DragWindow::~BC_DragWindow()
{
}

int BC_DragWindow::get_init_x(BC_WindowBase *parent_window, int icon_x)
{
        int output_x, temp = 0;
        Window tempwin;
        XTranslateCoordinates(parent_window->top_level->display, 
                parent_window->win, 
                parent_window->top_level->rootwin, 
                icon_x, 
                temp, 
                &output_x, 
                &temp, 
                &tempwin);
        return output_x;
}

int BC_DragWindow::get_init_y(BC_WindowBase *parent_window, int icon_y)
{
        int output_y, temp = 0;
        Window tempwin;
        XTranslateCoordinates(parent_window->top_level->display, 
                parent_window->win, 
                parent_window->top_level->rootwin, 
                temp, 
                icon_y, 
                &temp, 
                &output_y, 
                &tempwin);
        return output_y;
}

int BC_DragWindow::cursor_motion_event()
{
        reposition_window(get_abs_cursor_x(0) + icon_offset_x, 
                get_abs_cursor_y(0) + icon_offset_y, 
                get_w(), 
                get_h());
        flush();
        return 1;
}

int BC_DragWindow::get_offset_x()
{
        return icon_offset_x;
}

int BC_DragWindow::get_offset_y()
{
        return icon_offset_y;
}

int BC_DragWindow::drag_failure_event()
{
        if(!do_animation) return 0;

        if(end_x == BC_INFINITY)
        {
                end_x = get_x();
                end_y = get_y();
        }

        for(int i = 0; i < 10; i++)
        {
                int new_x = end_x + (init_x - end_x) * i / 10;
                int new_y = end_y + (init_y - end_y) * i / 10;

                reposition_window(new_x, 
                        new_y, 
                        get_w(), 
                        get_h());
                flush();
                usleep(1000);
        }
        return 0;
}

void BC_DragWindow::set_animation(int value)
{
        this->do_animation = value;
}

BC_Pixmap *BC_DragWindow::prepare_frame(VFrame *frame, BC_WindowBase *parent_window)
{
        temp_frame = 0;
        
        if(frame->get_color_model() == BC_RGBA8888)
        {
                temp_frame = new VFrame(*frame);
        }
        else
        {
                temp_frame = new VFrame(0, 
                                        frame->get_w(), 
                                        frame->get_h(), 
                                        BC_RGBA8888); 

                cmodel_transfer(temp_frame->get_rows(), 
                        frame->get_rows(),
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0, 
                        0, 
                        frame->get_w(), 
                        frame->get_h(),
                        0, 
                        0, 
                        temp_frame->get_w(), 
                        temp_frame->get_h(),
                        frame->get_color_model(), 
                        temp_frame->get_color_model(),
                        0,
                        frame->get_w(),
                        temp_frame->get_w());
        }
        temp_frame->get_rows()[(temp_frame->get_h() / 2)][(temp_frame->get_w() / 2) * 4 + 3] = 0;
        my_pixmap = new BC_Pixmap(parent_window,
                        temp_frame,
                        PIXMAP_ALPHA);

        return (my_pixmap);
}

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