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/**
* @file llresizebar.cpp
* @brief LLResizeBar base class
*
* Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#include "linden_common.h"
#include "llresizebar.h"
//#include "llviewermenu.h"
//#include "llviewerimagelist.h"
#include "llmath.h"
#include "llui.h"
#include "llmenugl.h"
#include "llfocusmgr.h"
#include "llwindow.h"
LLResizeBar::LLResizeBar( const LLString& name, const LLRect& rect, S32 min_width, S32 min_height, Side side )
:
LLView( name, rect, TRUE ),
mDragStartScreenX( 0 ),
mDragStartScreenY( 0 ),
mLastMouseScreenX( 0 ),
mLastMouseScreenY( 0 ),
mMinWidth( min_width ),
mMinHeight( min_height ),
mSide( side )
{
// set up some generically good follow code.
switch( side )
{
case LEFT:
setFollowsLeft();
setFollowsTop();
setFollowsBottom();
break;
case TOP:
setFollowsTop();
setFollowsLeft();
setFollowsRight();
break;
case RIGHT:
setFollowsRight();
setFollowsTop();
setFollowsBottom();
break;
case BOTTOM:
setFollowsBottom();
setFollowsLeft();
setFollowsRight();
break;
default:
break;
}
}
BOOL LLResizeBar::handleMouseDown(S32 x, S32 y, MASK mask)
{
if( mEnabled )
{
// Route future Mouse messages here preemptively. (Release on mouse up.)
// No handler needed for focus lost since this clas has no state that depends on it.
gFocusMgr.setMouseCapture( this, NULL );
//localPointToScreen(x, y, &mDragStartScreenX, &mDragStartScreenX);
localPointToOtherView(x, y, &mDragStartScreenX, &mDragStartScreenY, getParent()->getParent());
mLastMouseScreenX = mDragStartScreenX;
mLastMouseScreenY = mDragStartScreenY;
}
return TRUE;
}
BOOL LLResizeBar::handleMouseUp(S32 x, S32 y, MASK mask)
{
BOOL handled = FALSE;
if( gFocusMgr.getMouseCapture() == this )
{
// Release the mouse
gFocusMgr.setMouseCapture( NULL, NULL );
handled = TRUE;
}
else
{
handled = TRUE;
}
return handled;
}
EWidgetType LLResizeBar::getWidgetType() const
{
return WIDGET_TYPE_RESIZE_BAR;
}
LLString LLResizeBar::getWidgetTag() const
{
return LL_RESIZE_BAR_TAG;
}
BOOL LLResizeBar::handleHover(S32 x, S32 y, MASK mask)
{
BOOL handled = FALSE;
// We only handle the click if the click both started and ended within us
if( gFocusMgr.getMouseCapture() == this )
{
// *NOTE: this, of course, is fragile
LLView* floater_view = getParent()->getParent();
S32 floater_view_x;
S32 floater_view_y;
localPointToOtherView(x, y, &floater_view_x, &floater_view_y, floater_view);
S32 delta_x = floater_view_x - mDragStartScreenX;
S32 delta_y = floater_view_y - mDragStartScreenY;
LLCoordGL mouse_dir;
// use hysteresis on mouse motion to preserve user intent when mouse stops moving
mouse_dir.mX = (floater_view_x == mLastMouseScreenX) ? mLastMouseDir.mX : floater_view_x - mLastMouseScreenX;
mouse_dir.mY = (floater_view_y == mLastMouseScreenY) ? mLastMouseDir.mY : floater_view_y - mLastMouseScreenY;
mLastMouseDir = mouse_dir;
mLastMouseScreenX = floater_view_x;
mLastMouseScreenY = floater_view_y;
// Make sure the mouse in still over the application. We don't want to make the parent
// so big that we can't see the resize handle any more.
LLRect valid_rect = floater_view->getRect();
LLView* parentView = getParent();
if( valid_rect.localPointInRect( floater_view_x, floater_view_y ) && parentView )
{
// Resize the parent
LLRect parent_rect = parentView->getRect();
LLRect scaled_rect = parent_rect;
S32 new_width = parent_rect.getWidth();
S32 new_height = parent_rect.getHeight();
switch( mSide )
{
case LEFT:
new_width = parent_rect.getWidth() - delta_x;
if( new_width < mMinWidth )
{
new_width = mMinWidth;
delta_x = parent_rect.getWidth() - mMinWidth;
}
scaled_rect.translate(delta_x, 0);
break;
case TOP:
new_height = parent_rect.getHeight() + delta_y;
if( new_height < mMinHeight )
{
new_height = mMinHeight;
delta_y = mMinHeight - parent_rect.getHeight();
}
break;
case RIGHT:
new_width = parent_rect.getWidth() + delta_x;
if( new_width < mMinWidth )
{
new_width = mMinWidth;
delta_x = mMinWidth - parent_rect.getWidth();
}
break;
case BOTTOM:
new_height = parent_rect.getHeight() - delta_y;
if( new_height < mMinHeight )
{
new_height = mMinHeight;
delta_y = parent_rect.getHeight() - mMinHeight;
}
scaled_rect.translate(0, delta_y);
break;
}
scaled_rect.mTop = scaled_rect.mBottom + new_height;
scaled_rect.mRight = scaled_rect.mLeft + new_width;
parentView->setRect(scaled_rect);
S32 snap_delta_x = 0;
S32 snap_delta_y = 0;
LLView* snap_view = NULL;
switch( mSide )
{
case LEFT:
snap_view = parentView->findSnapEdge(snap_delta_x, mouse_dir, SNAP_LEFT, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
snap_delta_x -= scaled_rect.mLeft;
scaled_rect.mLeft += snap_delta_x;
break;
case TOP:
snap_view = parentView->findSnapEdge(snap_delta_y, mouse_dir, SNAP_TOP, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
snap_delta_y -= scaled_rect.mTop;
scaled_rect.mTop += snap_delta_y;
break;
case RIGHT:
snap_view = parentView->findSnapEdge(snap_delta_x, mouse_dir, SNAP_RIGHT, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
snap_delta_x -= scaled_rect.mRight;
scaled_rect.mRight += snap_delta_x;
break;
case BOTTOM:
snap_view = parentView->findSnapEdge(snap_delta_y, mouse_dir, SNAP_BOTTOM, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
snap_delta_y -= scaled_rect.mBottom;
scaled_rect.mBottom += snap_delta_y;
break;
}
parentView->snappedTo(snap_view);
parentView->setRect(parent_rect);
parentView->reshape(scaled_rect.getWidth(), scaled_rect.getHeight(), FALSE);
parentView->translate(scaled_rect.mLeft - parentView->getRect().mLeft, scaled_rect.mBottom - parentView->getRect().mBottom);
floater_view_x = mDragStartScreenX + delta_x;
floater_view_y = mDragStartScreenY + delta_y;
mDragStartScreenX = floater_view_x + snap_delta_x;
mDragStartScreenY = floater_view_y + snap_delta_y;
}
lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (active)" << llendl;
handled = TRUE;
}
else
{
lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (inactive)" << llendl;
handled = TRUE;
}
if( handled )
{
switch( mSide )
{
case LEFT:
case RIGHT:
getWindow()->setCursor(UI_CURSOR_SIZEWE);
break;
case TOP:
case BOTTOM:
getWindow()->setCursor(UI_CURSOR_SIZENS);
break;
}
}
return handled;
}
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