1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
///////////////////////////////////////////////////////////////////////////////
// $Id: BasicWidget.cxx,v 1.3 2000/01/10 23:31:38 bwmott Exp $
///////////////////////////////////////////////////////////////////////////////
//
// BasicWidget.cxx - Abstract base class for all widgets
//
//
// Bradford W. Mott
// Copyright (C) 1994
// December 11,1994
//
///////////////////////////////////////////////////////////////////////////////
// $Log: BasicWidget.cxx,v $
// Revision 1.3 2000/01/10 23:31:38 bwmott
// Modified pixmap operations to take the display depth into account
//
// Revision 1.2 1996/01/06 05:09:12 bwmott
// Changed all NULLs to 0
//
// Revision 1.1 1995/01/12 02:09:06 bmott
// Initial revision
//
///////////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <assert.h>
#include "BasicWidget.hxx"
#include "UIApplication.hxx"
#include "ContainerWidget.hxx"
///////////////////////////////////////////////////////////////////////////////
// Protected constructor to prevent instantiation
///////////////////////////////////////////////////////////////////////////////
BasicWidget::BasicWidget(ContainerWidget *const parent, const char *const name,
int x, int y, int width, int height)
: myName(name),
myParent(parent),
myX(x),
myY(y),
myWidth(width),
myHeight(height)
{
assert(name != 0);
// If I have a parent then tell him about myself
if(myParent != 0)
{
myParent->addChild(this);
}
// Invalidate my window
myWindow = 0;
// I start off unmanaged
myManageState = Unmanaged;
// Setup my default foreground and background colors
myForeground = application->blackPixel();
myBackground = application->whitePixel();
}
///////////////////////////////////////////////////////////////////////////////
// Destructor
///////////////////////////////////////////////////////////////////////////////
BasicWidget::~BasicWidget()
{
// If I have a parent then tell him I'm going away
if(myParent != 0)
{
myParent->removeChild(this);
}
// Close myWindow
if(myWindow)
XDestroyWindow(application->display(), myWindow);
}
///////////////////////////////////////////////////////////////////////////////
// Manage the entire widget subtree that I represented
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::manage()
{
assert(myWindow != 0);
// Manage myself
XMapWindow(application->display(), myWindow);
myManageState = Managed;
}
///////////////////////////////////////////////////////////////////////////////
// Unmanage the entire widget subtree that I represented
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::unmanage()
{
assert(myWindow != 0);
// Unmanage myself
XUnmapWindow(application->display(), myWindow);
myManageState = Unmanaged;
}
///////////////////////////////////////////////////////////////////////////////
// Set my background to the named color
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::background(const char* name)
{
XColor desiredColor, color;
int r,g,b;
const int delta = 7680;
XAllocNamedColor(application->display(), application->colormap(),
name, &color, &desiredColor);
myBackground = color.pixel;
XSetWindowBackground(application->display(), myWindow, color.pixel);
if ((r = desiredColor.red - delta) < 0)
r = 0;
if ((g = desiredColor.green - delta) < 0)
g = 0;
if ((b = desiredColor.blue - delta) < 0)
b = 0;
color.red = r;
color.green = g;
color.blue = b;
XAllocColor(application->display(), application->colormap(), &color);
myBackgroundLow = color.pixel;
if ((r = desiredColor.red + delta) > 65535)
r = 65535;
if ((g = desiredColor.green + delta) > 65535)
g = 65535;
if ((b = desiredColor.blue + delta) > 65535)
b = 65535;
color.red = r;
color.green = g;
color.blue = b;
XAllocColor(application->display(), application->colormap(), &color);
myBackgroundHigh = color.pixel;
// Make sure the window refreshes
XClearWindow(application->display(), myWindow);
}
///////////////////////////////////////////////////////////////////////////////
// Set my background to the given sprite
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::background(const Sprite *const sprite)
{
// Create pixmap
Pixmap pixmap = XCreatePixmap(application->display(), myWindow,
sprite->width(), sprite->height(), application->depth());
// Copy image into pixmap
XPutImage(application->display(), pixmap, application->gc(),
sprite->image(), 0, 0, 0, 0, sprite->width(), sprite->height());
// Install the pixmap on myself
XSetWindowBackgroundPixmap(application->display(), myWindow, pixmap);
// Free the pixmap
XFreePixmap(application->display(), pixmap);
// Make sure the window refreshes
XClearWindow(application->display(), myWindow);
}
///////////////////////////////////////////////////////////////////////////////
// Set my foreground to the named color
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::foreground(const char* name)
{
XColor color;
XAllocNamedColor(application->display(), application->colormap(),
name, &color, &color);
myForeground = color.pixel;
}
///////////////////////////////////////////////////////////////////////////////
// Called whenever an event arrives for me
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::handleEvent(XEvent* event)
{
// The default action is to do nothing
}
///////////////////////////////////////////////////////////////////////////////
// If I manage the given window then answer myself
///////////////////////////////////////////////////////////////////////////////
BasicWidget* BasicWidget::findWidget(Window window)
{
if (myWindow == window)
return(this);
else
return((BasicWidget*)0);
}
///////////////////////////////////////////////////////////////////////////////
// Resize myself to the given width and height
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::resize(int width, int height)
{
myWidth = width;
myHeight = height;
// Tell X to resize the widget
XResizeWindow(application->display(), myWindow, width, height);
}
///////////////////////////////////////////////////////////////////////////////
// Move myself to the given x and y location
///////////////////////////////////////////////////////////////////////////////
void BasicWidget::move(int x, int y)
{
myX = x;
myY = y;
// Tell X to resize the widget
XMoveWindow(application->display(), myWindow, x, y);
}
|
