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/*
Copyright (C) 1999-2006 Id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// a class to provide basic services for 2D view of a world
// window <-> local 2D space transforms
// snap to grid
// TODO: this one can be placed under an interface, and provided to the editor as a service
#include "StdAfx.h"
static void view_ZoomIn (GtkWidget* widget, gpointer data)
{
((C2DView*)data)->ZoomIn ();
}
static void view_ZoomOut (GtkWidget* widget, gpointer data)
{
((C2DView*)data)->ZoomOut ();
}
void C2DView::PreparePaint()
{
g_QglTable.m_pfn_qglClearColor( 0, 0, 0, 0 );
g_QglTable.m_pfn_qglViewport( 0, 0, m_rect.right, m_rect.bottom );
g_QglTable.m_pfn_qglMatrixMode( GL_PROJECTION );
g_QglTable.m_pfn_qglLoadIdentity();
g_QglTable.m_pfn_qglOrtho( m_Mins[0], m_Maxs[0], m_Maxs[1], m_Mins[1], -1, 1 );
}
void C2DView::SpaceForWindow( float c[2], int x, int y)
{
c[0] = ((float)(x))/((float)(m_rect.right-m_rect.left))*(m_Maxs[0]-m_Mins[0])+m_Mins[0];
c[1] = ((float)(y))/((float)(m_rect.bottom-m_rect.top))*(m_Maxs[1]-m_Mins[1])+m_Mins[1];
}
void C2DView::GridForWindow( float c[2], int x, int y)
{
SpaceForWindow( c, x, y );
if ( !m_bDoGrid )
return;
c[0] /= m_GridStep[0];
c[1] /= m_GridStep[1];
c[0] = (float)floor( c[0] + 0.5f );
c[1] = (float)floor( c[1] + 0.5f );
c[0] *= m_GridStep[0];
c[1] *= m_GridStep[1];
}
void C2DView::WindowForSpace( int &x, int &y, const float c[2] )
{
x = m_rect.left + (int)( ((float)(m_rect.right-m_rect.left))*(c[0]-m_Mins[0])/(m_Maxs[0]-m_Mins[0]) );
y = m_rect.top + (int)( ((float)(m_rect.bottom-m_rect.top))*(c[1]-m_Mins[1])/(m_Maxs[1]-m_Mins[1]) );
}
qboolean C2DView::DoesSelect( int x, int y, float c[2] )
{
int xc,yc;
WindowForSpace( xc, yc, c );
if ( abs(xc-x)<=3 && abs(yc-y)<=3 )
return true;
return false;
}
void C2DView::ZoomIn()
{
m_Mins[0] = 0.5f * ( m_Mins[0] - m_Center[0] ) + m_Center[0];
m_Mins[1] = 0.5f * ( m_Mins[1] - m_Center[1] ) + m_Center[1];
m_Maxs[0] = 0.5f * ( m_Maxs[0] - m_Center[0] ) + m_Center[0];
m_Maxs[1] = 0.5f * ( m_Maxs[1] - m_Center[1] ) + m_Center[1];
g_pToolWnd->Redraw ();
}
void C2DView::ZoomOut()
{
m_Mins[0] = 2.0f * ( m_Mins[0] - m_Center[0] ) + m_Center[0];
m_Mins[1] = 2.0f * ( m_Mins[1] - m_Center[1] ) + m_Center[1];
m_Maxs[0] = 2.0f * ( m_Maxs[0] - m_Center[0] ) + m_Center[0];
m_Maxs[1] = 2.0f * ( m_Maxs[1] - m_Center[1] ) + m_Center[1];
g_pToolWnd->Redraw ();
}
bool C2DView::OnRButtonDown (int x, int y)
{
if (ViewState == View_Idle)
{
m_xPosMove = x; // horizontal position of cursor
m_yPosMove = y; // vertical position of cursor
// store
m_MinsMove[0] = m_Mins[0]; m_MinsMove[1] = m_Mins[1];
m_MaxsMove[0] = m_Maxs[0]; m_MaxsMove[1] = m_Maxs[1];
ViewState = View_Move;
// set popup to true
m_bPopup = true;
return true;
}
return false;
}
bool C2DView::OnRButtonUp (int x, int y)
{
if (ViewState == View_Move)
{
// maybe it's time for popup menu
if (m_bPopup)
{
GtkWidget *menu, *item;
menu = gtk_menu_new ();
item = gtk_menu_item_new_with_label ("Validate (RETURN)");
gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (Textool_Validate), NULL);
gtk_widget_show (item);
gtk_menu_append (GTK_MENU (menu), item);
item = gtk_menu_item_new_with_label ("Zoom in (INSERT)");
gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (view_ZoomIn), this);
gtk_widget_show (item);
gtk_menu_append (GTK_MENU (menu), item);
item = gtk_menu_item_new_with_label ("Zoom out (DELETE)");
gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (view_ZoomOut), this);
gtk_widget_show (item);
gtk_menu_append (GTK_MENU (menu), item);
item = gtk_menu_item_new_with_label ("Cancel (ESC)");
gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (Textool_Cancel), NULL);
gtk_widget_show (item);
gtk_menu_append (GTK_MENU (menu), item);
gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 1, GDK_CURRENT_TIME);
}
// back to Idle mode
ViewState = View_Idle;
return true;
}
return false;
}
bool C2DView::OnMouseMove (int xPos, int yPos)
{
if (ViewState == View_Move)
{
float V[2];
// V is the offset
V[0] = ((float)( xPos - m_xPosMove )) * ( m_MaxsMove[0] - m_MinsMove[0] ) / ((float)( m_rect.left - m_rect.right ));
V[1] = ((float)( yPos - m_yPosMove )) * ( m_MaxsMove[1] - m_MinsMove[1] ) / ((float)( m_rect.top - m_rect.bottom ));
// update m_Mins m_Maxs and m_Center
m_Mins[0] = m_MinsMove[0] + V[0];
m_Mins[1] = m_MinsMove[1] + V[1];
m_Maxs[0] = m_MaxsMove[0] + V[0];
m_Maxs[1] = m_MaxsMove[1] + V[1];
m_Center[0] = 0.5f * ( m_Mins[0] + m_Maxs[0] );
m_Center[1] = 0.5f * ( m_Mins[1] + m_Maxs[1] );
// no popup menu if we moved
m_bPopup = false;
// send a repaint message
g_pToolWnd->Redraw ();
return true;
}
return false;
}
bool C2DView::OnKeyDown (char *s)
{
if (ViewState == View_Idle)
{
if (!strcmp(s,"Insert"))
{
ZoomOut();
return true;
}
if (!strcmp(s,"Delete"))
{
ZoomIn();
return true;
}
}
return false;
}
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