2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 //-----------------------------------------------------------------------------
25 // a class to provide basic services for 2D view of a world
26 // window <-> local 2D space transforms
28 // TODO: this one can be placed under an interface, and provided to the editor as a service
32 static void view_ZoomIn (GtkWidget* widget, gpointer data)
34 ((C2DView*)data)->ZoomIn ();
37 static void view_ZoomOut (GtkWidget* widget, gpointer data)
39 ((C2DView*)data)->ZoomOut ();
42 void C2DView::PreparePaint()
44 g_QglTable.m_pfn_qglClearColor( 0, 0, 0, 0 );
45 g_QglTable.m_pfn_qglViewport( 0, 0, m_rect.right, m_rect.bottom );
46 g_QglTable.m_pfn_qglMatrixMode( GL_PROJECTION );
47 g_QglTable.m_pfn_qglLoadIdentity();
48 g_QglTable.m_pfn_qglOrtho( m_Mins[0], m_Maxs[0], m_Maxs[1], m_Mins[1], -1, 1 );
51 void C2DView::SpaceForWindow( float c[2], int x, int y)
53 c[0] = ((float)(x))/((float)(m_rect.right-m_rect.left))*(m_Maxs[0]-m_Mins[0])+m_Mins[0];
54 c[1] = ((float)(y))/((float)(m_rect.bottom-m_rect.top))*(m_Maxs[1]-m_Mins[1])+m_Mins[1];
57 void C2DView::GridForWindow( float c[2], int x, int y)
59 SpaceForWindow( c, x, y );
62 c[0] /= m_GridStep[0];
63 c[1] /= m_GridStep[1];
64 c[0] = (float)floor( c[0] + 0.5f );
65 c[1] = (float)floor( c[1] + 0.5f );
66 c[0] *= m_GridStep[0];
67 c[1] *= m_GridStep[1];
70 void C2DView::WindowForSpace( int &x, int &y, const float c[2] )
72 x = m_rect.left + (int)( ((float)(m_rect.right-m_rect.left))*(c[0]-m_Mins[0])/(m_Maxs[0]-m_Mins[0]) );
73 y = m_rect.top + (int)( ((float)(m_rect.bottom-m_rect.top))*(c[1]-m_Mins[1])/(m_Maxs[1]-m_Mins[1]) );
76 qboolean C2DView::DoesSelect( int x, int y, float c[2] )
79 WindowForSpace( xc, yc, c );
80 if ( abs(xc-x)<=3 && abs(yc-y)<=3 )
85 void C2DView::ZoomIn()
87 m_Mins[0] = 0.5f * ( m_Mins[0] - m_Center[0] ) + m_Center[0];
88 m_Mins[1] = 0.5f * ( m_Mins[1] - m_Center[1] ) + m_Center[1];
89 m_Maxs[0] = 0.5f * ( m_Maxs[0] - m_Center[0] ) + m_Center[0];
90 m_Maxs[1] = 0.5f * ( m_Maxs[1] - m_Center[1] ) + m_Center[1];
91 g_pToolWnd->Redraw ();
94 void C2DView::ZoomOut()
96 m_Mins[0] = 2.0f * ( m_Mins[0] - m_Center[0] ) + m_Center[0];
97 m_Mins[1] = 2.0f * ( m_Mins[1] - m_Center[1] ) + m_Center[1];
98 m_Maxs[0] = 2.0f * ( m_Maxs[0] - m_Center[0] ) + m_Center[0];
99 m_Maxs[1] = 2.0f * ( m_Maxs[1] - m_Center[1] ) + m_Center[1];
100 g_pToolWnd->Redraw ();
103 bool C2DView::OnRButtonDown (int x, int y)
105 if (ViewState == View_Idle)
107 m_xPosMove = x; // horizontal position of cursor
108 m_yPosMove = y; // vertical position of cursor
110 m_MinsMove[0] = m_Mins[0]; m_MinsMove[1] = m_Mins[1];
111 m_MaxsMove[0] = m_Maxs[0]; m_MaxsMove[1] = m_Maxs[1];
112 ViewState = View_Move;
120 bool C2DView::OnRButtonUp (int x, int y)
122 if (ViewState == View_Move)
124 // maybe it's time for popup menu
127 GtkWidget *menu, *item;
129 menu = gtk_menu_new ();
131 item = gtk_menu_item_new_with_label ("Validate (RETURN)");
132 gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (Textool_Validate), NULL);
133 gtk_widget_show (item);
134 gtk_menu_append (GTK_MENU (menu), item);
136 item = gtk_menu_item_new_with_label ("Zoom in (INSERT)");
137 gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (view_ZoomIn), this);
138 gtk_widget_show (item);
139 gtk_menu_append (GTK_MENU (menu), item);
141 item = gtk_menu_item_new_with_label ("Zoom out (DELETE)");
142 gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (view_ZoomOut), this);
143 gtk_widget_show (item);
144 gtk_menu_append (GTK_MENU (menu), item);
146 item = gtk_menu_item_new_with_label ("Cancel (ESC)");
147 gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (Textool_Cancel), NULL);
148 gtk_widget_show (item);
149 gtk_menu_append (GTK_MENU (menu), item);
151 gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 1, GDK_CURRENT_TIME);
155 ViewState = View_Idle;
161 bool C2DView::OnMouseMove (int xPos, int yPos)
163 if (ViewState == View_Move)
167 V[0] = ((float)( xPos - m_xPosMove )) * ( m_MaxsMove[0] - m_MinsMove[0] ) / ((float)( m_rect.left - m_rect.right ));
168 V[1] = ((float)( yPos - m_yPosMove )) * ( m_MaxsMove[1] - m_MinsMove[1] ) / ((float)( m_rect.top - m_rect.bottom ));
169 // update m_Mins m_Maxs and m_Center
170 m_Mins[0] = m_MinsMove[0] + V[0];
171 m_Mins[1] = m_MinsMove[1] + V[1];
172 m_Maxs[0] = m_MaxsMove[0] + V[0];
173 m_Maxs[1] = m_MaxsMove[1] + V[1];
174 m_Center[0] = 0.5f * ( m_Mins[0] + m_Maxs[0] );
175 m_Center[1] = 0.5f * ( m_Mins[1] + m_Maxs[1] );
176 // no popup menu if we moved
178 // send a repaint message
179 g_pToolWnd->Redraw ();
185 bool C2DView::OnKeyDown (char *s)
187 if (ViewState == View_Idle)
189 if (!strcmp(s,"Insert"))
194 if (!strcmp(s,"Delete"))