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/*
* ion/ioncore/presize.c
*
* Copyright (c) Tuomo Valkonen 1999-2007.
*
* See the included file LICENSE for details.
*/
#include "presize.h"
#include "resize.h"
#include "window.h"
#include "pointer.h"
#include "grab.h"
/*{{{ Resize */
static int p_dx1mul=0, p_dx2mul=0, p_dy1mul=0, p_dy2mul=0;
#define MINCORNER 16
void window_p_resize_prepare(WWindow *wwin, XButtonEvent *ev)
{
int ww=REGION_GEOM(wwin).w/2;
int hh=REGION_GEOM(wwin).h/2;
int xdiv, ydiv;
int tmpx, tmpy, atmpx, atmpy;
p_dx1mul=0;
p_dx2mul=0;
p_dy1mul=0;
p_dy2mul=0;
tmpx=ev->x-ww;
tmpy=hh-ev->y;
xdiv=ww/2;
ydiv=hh/2;
atmpx=abs(tmpx);
atmpy=abs(tmpy);
if(xdiv<MINCORNER && xdiv>1){
xdiv=ww-MINCORNER;
if(xdiv<1)
xdiv=1;
}
if(ydiv<MINCORNER && ydiv>1){
ydiv=hh-MINCORNER;
if(ydiv<1)
ydiv=1;
}
if(xdiv==0){
p_dx2mul=1;
}else if(hh*atmpx/xdiv>=tmpy && -hh*atmpx/xdiv<=tmpy){
p_dx1mul=(tmpx<0);
p_dx2mul=(tmpx>=0);
}
if(ydiv==0){
p_dy2mul=1;
}else if(ww*atmpy/ydiv>=tmpx && -ww*atmpy/ydiv<=tmpx){
p_dy1mul=(tmpy>0);
p_dy2mul=(tmpy<=0);
}
}
static void p_moveres_end(WWindow *wwin, XButtonEvent *UNUSED(ev))
{
WMoveresMode *mode=moveres_mode((WRegion*)wwin);
if(mode!=NULL)
moveresmode_do_end(mode, TRUE);
}
static void p_moveres_cancel(WWindow *wwin)
{
WMoveresMode *mode=moveres_mode((WRegion*)wwin);
if(mode!=NULL)
moveresmode_do_end(mode, FALSE);
}
static void confine_to_parent(WWindow *wwin)
{
WRegion *par=REGION_PARENT_REG(wwin);
if(par!=NULL)
ioncore_grab_confine_to(region_xwindow(par));
}
static void p_resize_motion(WWindow *wwin, XMotionEvent *UNUSED(ev), int dx, int dy)
{
WMoveresMode *mode=moveres_mode((WRegion*)wwin);
if(mode!=NULL){
moveresmode_delta_resize(mode, p_dx1mul*dx, p_dx2mul*dx,
p_dy1mul*dy, p_dy2mul*dy, NULL);
}
}
static void p_resize_begin(WWindow *wwin, XMotionEvent *ev, int dx, int dy)
{
region_begin_resize((WRegion*)wwin, NULL, TRUE);
p_resize_motion(wwin, ev, dx, dy);
}
/*EXTL_DOC
* Start resizing \var{wwin} with the mouse or other pointing device.
* This function should only be used by binding it to \emph{mpress} or
* \emph{mdrag} action.
*/
EXTL_EXPORT_MEMBER
void window_p_resize(WWindow *wwin)
{
if(!ioncore_set_drag_handlers((WRegion*)wwin,
(WMotionHandler*)p_resize_begin,
(WMotionHandler*)p_resize_motion,
(WButtonHandler*)p_moveres_end,
NULL,
(GrabKilledHandler*)p_moveres_cancel))
return;
confine_to_parent(wwin);
}
/*}}}*/
/*{{{ Move */
static void p_move_motion(WWindow *wwin, XMotionEvent *UNUSED(ev), int dx, int dy)
{
WMoveresMode *mode=moveres_mode((WRegion*)wwin);
if(mode!=NULL)
moveresmode_delta_move(mode, dx, dy, NULL);
}
static void p_move_begin(WWindow *wwin, XMotionEvent *ev, int dx, int dy)
{
region_begin_move((WRegion*)wwin, NULL, TRUE);
p_move_motion(wwin, ev, dx, dy);
}
/*EXTL_DOC
* Start moving \var{wwin} with the mouse or other pointing device.
* This function should only be used by binding it to \emph{mpress} or
* \emph{mdrag} action.
*/
EXTL_EXPORT_MEMBER
void window_p_move(WWindow *wwin)
{
if(!ioncore_set_drag_handlers((WRegion*)wwin,
(WMotionHandler*)p_move_begin,
(WMotionHandler*)p_move_motion,
(WButtonHandler*)p_moveres_end,
NULL,
(GrabKilledHandler*)p_moveres_cancel))
return;
confine_to_parent(wwin);
}
/*}}}*/
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