1 /*
2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
4
5 This file is part of GtkRadiant.
6
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.
11
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.
16
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
20 */
21
22 //-----------------------------------------------------------------------------
23 //
24 // DESCRIPTION:
25 // a class to provide basic services for 2D view of a world
26 // window <-> local 2D space transforms
27 // snap to grid
28 // TODO: this one can be placed under an interface, and provided to the editor as a service
29
30 #include "StdAfx.h"
31
view_ZoomIn(GtkWidget * widget,gpointer data)32 static void view_ZoomIn( GtkWidget* widget, gpointer data ){
33 ( (C2DView*)data )->ZoomIn();
34 }
35
view_ZoomOut(GtkWidget * widget,gpointer data)36 static void view_ZoomOut( GtkWidget* widget, gpointer data ){
37 ( (C2DView*)data )->ZoomOut();
38 }
39
PreparePaint()40 void C2DView::PreparePaint(){
41 g_QglTable.m_pfn_qglClearColor( 0, 0, 0, 0 );
42 g_QglTable.m_pfn_qglViewport( 0, 0, m_rect.right, m_rect.bottom );
43 g_QglTable.m_pfn_qglMatrixMode( GL_PROJECTION );
44 g_QglTable.m_pfn_qglLoadIdentity();
45 g_QglTable.m_pfn_qglOrtho( m_Mins[0], m_Maxs[0], m_Maxs[1], m_Mins[1], -1, 1 );
46 }
47
SpaceForWindow(float c[2],int x,int y)48 void C2DView::SpaceForWindow( float c[2], int x, int y ){
49 c[0] = ( (float)( x ) ) / ( (float)( m_rect.right - m_rect.left ) ) * ( m_Maxs[0] - m_Mins[0] ) + m_Mins[0];
50 c[1] = ( (float)( y ) ) / ( (float)( m_rect.bottom - m_rect.top ) ) * ( m_Maxs[1] - m_Mins[1] ) + m_Mins[1];
51 }
52
GridForWindow(float c[2],int x,int y)53 void C2DView::GridForWindow( float c[2], int x, int y ){
54 SpaceForWindow( c, x, y );
55 if ( !m_bDoGrid ) {
56 return;
57 }
58 c[0] /= m_GridStep[0];
59 c[1] /= m_GridStep[1];
60 c[0] = (float)floor( c[0] + 0.5f );
61 c[1] = (float)floor( c[1] + 0.5f );
62 c[0] *= m_GridStep[0];
63 c[1] *= m_GridStep[1];
64 }
65
WindowForSpace(int & x,int & y,const float c[2])66 void C2DView::WindowForSpace( int &x, int &y, const float c[2] ){
67 x = m_rect.left + (int)( ( (float)( m_rect.right - m_rect.left ) ) * ( c[0] - m_Mins[0] ) / ( m_Maxs[0] - m_Mins[0] ) );
68 y = m_rect.top + (int)( ( (float)( m_rect.bottom - m_rect.top ) ) * ( c[1] - m_Mins[1] ) / ( m_Maxs[1] - m_Mins[1] ) );
69 }
70
DoesSelect(int x,int y,float c[2])71 qboolean C2DView::DoesSelect( int x, int y, float c[2] ){
72 int xc,yc;
73 WindowForSpace( xc, yc, c );
74 if ( abs( xc - x ) <= 3 && abs( yc - y ) <= 3 ) {
75 return true;
76 }
77 return false;
78 }
79
ZoomIn()80 void C2DView::ZoomIn(){
81 m_Mins[0] = 0.5f * ( m_Mins[0] - m_Center[0] ) + m_Center[0];
82 m_Mins[1] = 0.5f * ( m_Mins[1] - m_Center[1] ) + m_Center[1];
83 m_Maxs[0] = 0.5f * ( m_Maxs[0] - m_Center[0] ) + m_Center[0];
84 m_Maxs[1] = 0.5f * ( m_Maxs[1] - m_Center[1] ) + m_Center[1];
85 g_pToolWnd->Redraw();
86 }
87
ZoomOut()88 void C2DView::ZoomOut(){
89 m_Mins[0] = 2.0f * ( m_Mins[0] - m_Center[0] ) + m_Center[0];
90 m_Mins[1] = 2.0f * ( m_Mins[1] - m_Center[1] ) + m_Center[1];
91 m_Maxs[0] = 2.0f * ( m_Maxs[0] - m_Center[0] ) + m_Center[0];
92 m_Maxs[1] = 2.0f * ( m_Maxs[1] - m_Center[1] ) + m_Center[1];
93 g_pToolWnd->Redraw();
94 }
95
OnRButtonDown(int x,int y)96 bool C2DView::OnRButtonDown( int x, int y ){
97 if ( ViewState == View_Idle ) {
98 m_xPosMove = x; // horizontal position of cursor
99 m_yPosMove = y; // vertical position of cursor
100 // store
101 m_MinsMove[0] = m_Mins[0]; m_MinsMove[1] = m_Mins[1];
102 m_MaxsMove[0] = m_Maxs[0]; m_MaxsMove[1] = m_Maxs[1];
103 ViewState = View_Move;
104 // set popup to true
105 m_bPopup = true;
106 return true;
107 }
108 return false;
109 }
110
OnRButtonUp(int x,int y)111 bool C2DView::OnRButtonUp( int x, int y ){
112 if ( ViewState == View_Move ) {
113 // maybe it's time for popup menu
114 if ( m_bPopup ) {
115 GtkWidget *menu, *item;
116
117 menu = gtk_menu_new();
118
119 item = gtk_menu_item_new_with_label( "Validate (RETURN)" );
120 gtk_signal_connect( GTK_OBJECT( item ), "activate", GTK_SIGNAL_FUNC( Textool_Validate ), NULL );
121 gtk_widget_show( item );
122 gtk_menu_append( GTK_MENU( menu ), item );
123
124 item = gtk_menu_item_new_with_label( "Zoom in (INSERT)" );
125 gtk_signal_connect( GTK_OBJECT( item ), "activate", GTK_SIGNAL_FUNC( view_ZoomIn ), this );
126 gtk_widget_show( item );
127 gtk_menu_append( GTK_MENU( menu ), item );
128
129 item = gtk_menu_item_new_with_label( "Zoom out (DELETE)" );
130 gtk_signal_connect( GTK_OBJECT( item ), "activate", GTK_SIGNAL_FUNC( view_ZoomOut ), this );
131 gtk_widget_show( item );
132 gtk_menu_append( GTK_MENU( menu ), item );
133
134 item = gtk_menu_item_new_with_label( "Cancel (ESC)" );
135 gtk_signal_connect( GTK_OBJECT( item ), "activate", GTK_SIGNAL_FUNC( Textool_Cancel ), NULL );
136 gtk_widget_show( item );
137 gtk_menu_append( GTK_MENU( menu ), item );
138
139 gtk_menu_popup( GTK_MENU( menu ), NULL, NULL, NULL, NULL, 1, GDK_CURRENT_TIME );
140 }
141
142 // back to Idle mode
143 ViewState = View_Idle;
144 return true;
145 }
146 return false;
147 }
148
OnMouseMove(int xPos,int yPos)149 bool C2DView::OnMouseMove( int xPos, int yPos ){
150 if ( ViewState == View_Move ) {
151 float V[2];
152 // V is the offset
153 V[0] = ( (float)( xPos - m_xPosMove ) ) * ( m_MaxsMove[0] - m_MinsMove[0] ) / ( (float)( m_rect.left - m_rect.right ) );
154 V[1] = ( (float)( yPos - m_yPosMove ) ) * ( m_MaxsMove[1] - m_MinsMove[1] ) / ( (float)( m_rect.top - m_rect.bottom ) );
155 // update m_Mins m_Maxs and m_Center
156 m_Mins[0] = m_MinsMove[0] + V[0];
157 m_Mins[1] = m_MinsMove[1] + V[1];
158 m_Maxs[0] = m_MaxsMove[0] + V[0];
159 m_Maxs[1] = m_MaxsMove[1] + V[1];
160 m_Center[0] = 0.5f * ( m_Mins[0] + m_Maxs[0] );
161 m_Center[1] = 0.5f * ( m_Mins[1] + m_Maxs[1] );
162 // no popup menu if we moved
163 m_bPopup = false;
164 // send a repaint message
165 g_pToolWnd->Redraw();
166 return true;
167 }
168 return false;
169 }
170
OnKeyDown(char * s)171 bool C2DView::OnKeyDown( char *s ){
172 if ( ViewState == View_Idle ) {
173 if ( !strcmp( s,"Insert" ) ) {
174 ZoomOut();
175 return true;
176 }
177 if ( !strcmp( s,"Delete" ) ) {
178 ZoomIn();
179 return true;
180 }
181 }
182 return false;
183 }
184