| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: bitmap.cpp |
| 3 | // Purpose: wxBitmap |
| 4 | // Author: Julian Smart, originally in bitmap.cpp |
| 5 | // Modified by: |
| 6 | // Created: 25/03/2003 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 13 | #pragma implementation "bmpmotif.h" |
| 14 | #endif |
| 15 | |
| 16 | #ifdef __VMS |
| 17 | #define XtParent XTPARENT |
| 18 | #define XtDisplay XTDISPLAY |
| 19 | #endif |
| 20 | |
| 21 | #include "wx/defs.h" |
| 22 | #include "wx/motif/bmpmotif.h" |
| 23 | |
| 24 | #ifdef __VMS__ |
| 25 | #pragma message disable nosimpint |
| 26 | #endif |
| 27 | #include <Xm/Xm.h> |
| 28 | #ifdef __VMS__ |
| 29 | #pragma message enable nosimpint |
| 30 | #endif |
| 31 | |
| 32 | #include "wx/motif/private.h" |
| 33 | |
| 34 | #if wxHAVE_LIB_XPM |
| 35 | #include <X11/xpm.h> |
| 36 | #endif |
| 37 | #include <math.h> |
| 38 | |
| 39 | Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap ); |
| 40 | |
| 41 | wxBitmapCache::~wxBitmapCache() |
| 42 | { |
| 43 | if( m_display ) |
| 44 | { |
| 45 | Screen* screen = DefaultScreenOfDisplay( (Display*)m_display ); |
| 46 | |
| 47 | if( m_labelPixmap ) |
| 48 | XmDestroyPixmap( screen, (Pixmap)m_labelPixmap ); |
| 49 | |
| 50 | if( m_armPixmap ) |
| 51 | XmDestroyPixmap( screen, (Pixmap)m_armPixmap ); |
| 52 | |
| 53 | if( m_insensPixmap ) |
| 54 | XmDestroyPixmap( screen, (Pixmap)m_insensPixmap ); |
| 55 | |
| 56 | } |
| 57 | |
| 58 | if( m_image ) |
| 59 | { |
| 60 | XmUninstallImage( (XImage*)m_image ); |
| 61 | XtFree( (char*)(XImage*)m_image ); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | void wxBitmapCache::SetBitmap( const wxBitmap& bitmap ) |
| 66 | { |
| 67 | if( m_bitmap != bitmap ) |
| 68 | { |
| 69 | InvalidateCache(); |
| 70 | m_bitmap = bitmap; |
| 71 | |
| 72 | if( m_image ) |
| 73 | { |
| 74 | XmUninstallImage( (XImage*)m_image ); |
| 75 | XtFree( (char*)(XImage*)m_image ); |
| 76 | m_image = (WXImage*)NULL; |
| 77 | } |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | void wxBitmapCache::InvalidateCache() |
| 82 | { |
| 83 | m_recalcPixmaps.label = true; |
| 84 | m_recalcPixmaps.arm = true; |
| 85 | m_recalcPixmaps.insens = true; |
| 86 | } |
| 87 | |
| 88 | void wxBitmapCache::SetColoursChanged() |
| 89 | { |
| 90 | InvalidateCache(); |
| 91 | } |
| 92 | |
| 93 | void wxBitmapCache::CreateImageIfNeeded( WXWidget w ) |
| 94 | { |
| 95 | if( m_image ) |
| 96 | return; |
| 97 | |
| 98 | m_display = w ? |
| 99 | (WXDisplay*)XtDisplay( (Widget)w ) : |
| 100 | (WXDisplay*)wxGetDisplay(); |
| 101 | |
| 102 | XImage *ximage = XGetImage( (Display*)m_display, |
| 103 | (Drawable)m_bitmap.GetDrawable(), |
| 104 | 0, 0, |
| 105 | m_bitmap.GetWidth(), m_bitmap.GetHeight(), |
| 106 | AllPlanes, ZPixmap ); |
| 107 | |
| 108 | m_image = (WXImage*)ximage; |
| 109 | |
| 110 | if( m_image ) |
| 111 | { |
| 112 | char tmp[128]; |
| 113 | sprintf( tmp, "Im%x", (unsigned int)ximage ); |
| 114 | XmInstallImage( ximage, tmp ); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | WXPixmap wxBitmapCache::GetLabelPixmap( WXWidget w ) |
| 119 | { |
| 120 | if( m_labelPixmap && !m_recalcPixmaps.label ) |
| 121 | return m_labelPixmap; |
| 122 | |
| 123 | CreateImageIfNeeded( w ); |
| 124 | |
| 125 | Screen* screen = DefaultScreenOfDisplay( (Display*)m_display ); |
| 126 | |
| 127 | if( m_labelPixmap ) |
| 128 | XmDestroyPixmap( screen, (Pixmap)m_labelPixmap ); |
| 129 | |
| 130 | if( !m_image ) |
| 131 | return (WXPixmap)NULL; |
| 132 | |
| 133 | char tmp[128]; |
| 134 | sprintf( tmp, "Im%x", (unsigned int)m_image ); |
| 135 | |
| 136 | Pixel fg, bg; |
| 137 | Widget widget = (Widget)w; |
| 138 | |
| 139 | while( XmIsGadget( widget ) ) |
| 140 | widget = XtParent( widget ); |
| 141 | XtVaGetValues( widget, |
| 142 | XmNbackground, &bg, |
| 143 | XmNforeground, &fg, |
| 144 | NULL ); |
| 145 | |
| 146 | m_labelPixmap = (WXPixmap)XmGetPixmap( screen, tmp, fg, bg ); |
| 147 | |
| 148 | m_recalcPixmaps.label = !m_labelPixmap; |
| 149 | return m_labelPixmap; |
| 150 | } |
| 151 | |
| 152 | WXPixmap wxBitmapCache::GetArmPixmap( WXWidget w ) |
| 153 | { |
| 154 | if( m_armPixmap && !m_recalcPixmaps.arm ) |
| 155 | return m_armPixmap; |
| 156 | |
| 157 | CreateImageIfNeeded( w ); |
| 158 | |
| 159 | Screen* screen = DefaultScreenOfDisplay( (Display*)m_display ); |
| 160 | |
| 161 | if( m_armPixmap ) |
| 162 | XmDestroyPixmap( screen, (Pixmap)m_armPixmap ); |
| 163 | |
| 164 | if( !m_image ) |
| 165 | return (WXPixmap)NULL; |
| 166 | |
| 167 | char tmp[128]; |
| 168 | sprintf( tmp, "Im%x", (unsigned int)m_image ); |
| 169 | |
| 170 | Pixel fg, bg; |
| 171 | Widget widget = (Widget) w; |
| 172 | |
| 173 | XtVaGetValues( widget, XmNarmColor, &bg, NULL ); |
| 174 | while( XmIsGadget( widget ) ) |
| 175 | widget = XtParent( widget ); |
| 176 | XtVaGetValues( widget, XmNforeground, &fg, NULL ); |
| 177 | |
| 178 | m_armPixmap = (WXPixmap)XmGetPixmap( screen, tmp, fg, bg ); |
| 179 | |
| 180 | m_recalcPixmaps.arm = !m_armPixmap; |
| 181 | return m_armPixmap; |
| 182 | } |
| 183 | |
| 184 | WXPixmap wxBitmapCache::GetInsensPixmap( WXWidget w ) |
| 185 | { |
| 186 | if( m_insensPixmap && !m_recalcPixmaps.insens ) |
| 187 | return m_insensPixmap; |
| 188 | |
| 189 | CreateImageIfNeeded( w ); |
| 190 | |
| 191 | Screen* screen = DefaultScreenOfDisplay( (Display*)m_display ); |
| 192 | |
| 193 | if( m_insensPixmap ) |
| 194 | XmDestroyPixmap( screen, (Pixmap)m_insensPixmap ); |
| 195 | |
| 196 | if( !m_image ) |
| 197 | return (WXPixmap)NULL; |
| 198 | |
| 199 | m_insensPixmap = |
| 200 | (WXPixmap)XCreateInsensitivePixmap( (Display*)m_display, |
| 201 | (Pixmap)m_bitmap.GetDrawable() ); |
| 202 | |
| 203 | m_recalcPixmaps.insens = !m_insensPixmap; |
| 204 | return m_insensPixmap; |
| 205 | } |
| 206 | |
| 207 | ////////////////////////////////////////////////////////////////////////////// |
| 208 | // Utility function |
| 209 | ////////////////////////////////////////////////////////////////////////////// |
| 210 | |
| 211 | /**************************************************************************** |
| 212 | |
| 213 | NAME |
| 214 | XCreateInsensitivePixmap - create a grayed-out copy of a pixmap |
| 215 | |
| 216 | SYNOPSIS |
| 217 | Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap ) |
| 218 | |
| 219 | DESCRIPTION |
| 220 | This function creates a grayed-out copy of the argument pixmap, suitable |
| 221 | for use as a XmLabel's XmNlabelInsensitivePixmap resource. |
| 222 | |
| 223 | RETURN VALUES |
| 224 | The return value is the new Pixmap id or zero on error. Errors include |
| 225 | a NULL display argument or an invalid Pixmap argument. |
| 226 | |
| 227 | ERRORS |
| 228 | If one of the XLib functions fail, it will produce a X error. The |
| 229 | default X error handler prints a diagnostic and calls exit(). |
| 230 | |
| 231 | SEE ALSO |
| 232 | XCopyArea(3), XCreateBitmapFromData(3), XCreateGC(3), XCreatePixmap(3), |
| 233 | XFillRectangle(3), exit(2) |
| 234 | |
| 235 | AUTHOR |
| 236 | John R Veregge - john@puente.jpl.nasa.gov |
| 237 | Advanced Engineering and Prototyping Group (AEG) |
| 238 | Information Systems Technology Section (395) |
| 239 | Jet Propulsion Lab - Calif Institute of Technology |
| 240 | |
| 241 | *****************************************************************************/ |
| 242 | |
| 243 | Pixmap |
| 244 | XCreateInsensitivePixmap( Display *display, Pixmap pixmap ) |
| 245 | |
| 246 | { |
| 247 | static char stipple_data[] = |
| 248 | { |
| 249 | 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA, |
| 250 | 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA, |
| 251 | 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA, |
| 252 | 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA |
| 253 | }; |
| 254 | GC gc; |
| 255 | Pixmap ipixmap, stipple; |
| 256 | unsigned width, height, depth; |
| 257 | |
| 258 | Window window; /* These return values */ |
| 259 | unsigned border; /* from XGetGeometry() */ |
| 260 | int x, y; /* are not needed. */ |
| 261 | |
| 262 | ipixmap = 0; |
| 263 | |
| 264 | if ( NULL == display || 0 == pixmap ) |
| 265 | return ipixmap; |
| 266 | |
| 267 | if ( 0 == XGetGeometry( display, pixmap, &window, &x, &y, |
| 268 | &width, &height, &border, &depth ) |
| 269 | ) |
| 270 | return ipixmap; /* BadDrawable: probably an invalid pixmap */ |
| 271 | |
| 272 | /* Get the stipple pixmap to be used to 'gray-out' the argument pixmap. |
| 273 | */ |
| 274 | stipple = XCreateBitmapFromData( display, pixmap, stipple_data, 16, 16 ); |
| 275 | if ( 0 != stipple ) |
| 276 | { |
| 277 | gc = XCreateGC( display, pixmap, (XtGCMask)0, (XGCValues*)NULL ); |
| 278 | if ( NULL != gc ) |
| 279 | { |
| 280 | /* Create an identical copy of the argument pixmap. |
| 281 | */ |
| 282 | ipixmap = XCreatePixmap( display, pixmap, width, height, depth ); |
| 283 | if ( 0 != ipixmap ) |
| 284 | { |
| 285 | /* Copy the argument pixmap into the new pixmap. |
| 286 | */ |
| 287 | XCopyArea( display, pixmap, ipixmap, |
| 288 | gc, 0, 0, width, height, 0, 0 ); |
| 289 | |
| 290 | /* Refill the new pixmap using the stipple algorithm/pixmap. |
| 291 | */ |
| 292 | XSetStipple( display, gc, stipple ); |
| 293 | XSetFillStyle( display, gc, FillStippled ); |
| 294 | XFillRectangle( display, ipixmap, gc, 0, 0, width, height ); |
| 295 | } |
| 296 | XFreeGC( display, gc ); |
| 297 | } |
| 298 | XFreePixmap( display, stipple ); |
| 299 | } |
| 300 | return ipixmap; |
| 301 | } |