6 #include <math.h> /* for : double rint (double) */
9 char *WMBrowserDidScrollNotification
= "WMBrowserDidScrollNotification";
12 typedef struct W_Browser
{
20 short usedColumnCount
; /* columns actually being used */
23 short maxVisibleColumns
;
24 short firstVisibleColumn
;
35 void *doubleClientData
;
36 WMAction
*doubleAction
;
38 WMBrowserFillColumnProc
*fillColumn
;
45 unsigned int isTitled
:1;
46 unsigned int allowMultipleSelection
:1;
47 unsigned int hasScroller
:1;
50 unsigned int loaded
:1;
51 unsigned int loadingColumn
:1;
56 #define COLUMN_SPACING 4
57 #define TITLE_SPACING 2
59 #define DEFAULT_WIDTH 305
60 #define DEFAULT_HEIGHT 200
61 #define DEFAULT_HAS_SCROLLER True
62 #define DEFAULT_TITLE_HEIGHT 20
63 #define DEFAULT_IS_TITLED True
64 #define DEFAULT_MAX_VISIBLE_COLUMNS 2
65 #define DEFAULT_SEPARATOR "/"
67 #define MIN_VISIBLE_COLUMNS 1
68 #define MAX_VISIBLE_COLUMNS 32
71 #define COLUMN_IS_VISIBLE(b, c) ((c) >= (b)->firstVisibleColumn \
72 && (c) < (b)->firstVisibleColumn + (b)->maxVisibleColumns)
75 static void handleEvents(XEvent
*event
, void *data
);
76 static void destroyBrowser(WMBrowser
*bPtr
);
78 static void setupScroller(WMBrowser
*bPtr
);
80 static void scrollToColumn(WMBrowser
*bPtr
, int column
, Bool updateScroller
);
82 static void paintItem(WMList
*lPtr
, int index
, Drawable d
, char *text
,
83 int state
, WMRect
*rect
);
85 static void loadColumn(WMBrowser
*bPtr
, int column
);
87 static void removeColumn(WMBrowser
*bPtr
, int column
);
90 createTruncatedString(WMFont
*font
, char *text
, int *textLen
, int width
);
92 static void resizeBrowser(WMWidget
*, unsigned int, unsigned int);
94 W_ViewProcedureTable _BrowserViewProcedures
= {
103 WMCreateBrowser(WMWidget
*parent
)
108 wassertrv(parent
, NULL
);
110 bPtr
= wmalloc(sizeof(WMBrowser
));
111 memset(bPtr
, 0, sizeof(WMBrowser
));
113 bPtr
->widgetClass
= WC_Browser
;
115 bPtr
->view
= W_CreateView(W_VIEW(parent
));
120 bPtr
->view
->self
= bPtr
;
122 WMCreateEventHandler(bPtr
->view
, ExposureMask
|StructureNotifyMask
123 |ClientMessageMask
, handleEvents
, bPtr
);
125 /* default configuration */
126 bPtr
->flags
.hasScroller
= DEFAULT_HAS_SCROLLER
;
128 bPtr
->titleHeight
= DEFAULT_TITLE_HEIGHT
;
129 bPtr
->flags
.isTitled
= DEFAULT_IS_TITLED
;
130 bPtr
->maxVisibleColumns
= DEFAULT_MAX_VISIBLE_COLUMNS
;
132 resizeBrowser(bPtr
, DEFAULT_WIDTH
, DEFAULT_HEIGHT
);
134 bPtr
->pathSeparator
= wstrdup(DEFAULT_SEPARATOR
);
136 if (bPtr
->flags
.hasScroller
)
139 for (i
=0; i
<bPtr
->maxVisibleColumns
; i
++) {
140 WMAddBrowserColumn(bPtr
);
142 bPtr
->usedColumnCount
= 0;
144 bPtr
->selectedColumn
= -1;
151 WMSetBrowserMaxVisibleColumns(WMBrowser
*bPtr
, int columns
)
153 int curMaxVisibleColumns
;
154 int newFirstVisibleColumn
= 0;
158 columns
= (columns
< MIN_VISIBLE_COLUMNS
) ? MIN_VISIBLE_COLUMNS
: columns
;
159 columns
= (columns
> MAX_VISIBLE_COLUMNS
) ? MAX_VISIBLE_COLUMNS
: columns
;
160 if (columns
== bPtr
->maxVisibleColumns
) {
163 curMaxVisibleColumns
= bPtr
->maxVisibleColumns
;
164 bPtr
->maxVisibleColumns
= columns
;
165 /* browser not loaded */
166 if (!bPtr
->flags
.loaded
) {
167 if ((columns
> curMaxVisibleColumns
) && (columns
> bPtr
->columnCount
)) {
168 int i
= columns
- bPtr
->columnCount
;
169 bPtr
->usedColumnCount
= bPtr
->columnCount
;
171 WMAddBrowserColumn(bPtr
);
173 bPtr
->usedColumnCount
= 0;
175 /* browser loaded and columns > curMaxVisibleColumns */
176 } else if (columns
> curMaxVisibleColumns
) {
177 if (bPtr
->usedColumnCount
> columns
) {
178 newFirstVisibleColumn
= bPtr
->usedColumnCount
- columns
;
180 if (newFirstVisibleColumn
> bPtr
->firstVisibleColumn
) {
181 newFirstVisibleColumn
= bPtr
->firstVisibleColumn
;
183 if (columns
> bPtr
->columnCount
) {
184 int i
= columns
- bPtr
->columnCount
;
185 int curUsedColumnCount
= bPtr
->usedColumnCount
;
186 bPtr
->usedColumnCount
= bPtr
->columnCount
;
188 WMAddBrowserColumn(bPtr
);
190 bPtr
->usedColumnCount
= curUsedColumnCount
;
192 /* browser loaded and columns < curMaxVisibleColumns */
194 newFirstVisibleColumn
= bPtr
->firstVisibleColumn
;
195 if (newFirstVisibleColumn
+ columns
>= bPtr
->usedColumnCount
) {
196 removeColumn(bPtr
, newFirstVisibleColumn
+ columns
);
199 resizeBrowser(bPtr
, bPtr
->view
->size
.width
, bPtr
->view
->size
.height
);
200 if (bPtr
->flags
.loaded
) {
201 XClearArea(bPtr
->view
->screen
->display
, bPtr
->view
->window
, 0, 0,
202 bPtr
->view
->size
.width
, bPtr
->titleHeight
, False
);
203 scrollToColumn (bPtr
, newFirstVisibleColumn
, True
);
209 WMGetBrowserNumberOfColumns(WMBrowser
*bPtr
)
211 return bPtr
->usedColumnCount
;
215 WMSetBrowserPathSeparator(WMBrowser
*bPtr
, char *separator
)
217 if (bPtr
->pathSeparator
)
218 free(bPtr
->pathSeparator
);
219 bPtr
->pathSeparator
= wstrdup(separator
);
225 drawTitleOfColumn(WMBrowser
*bPtr
, int column
)
227 WMScreen
*scr
= bPtr
->view
->screen
;
230 x
=(column
-bPtr
->firstVisibleColumn
)*(bPtr
->columnSize
.width
+COLUMN_SPACING
);
232 XFillRectangle(scr
->display
, bPtr
->view
->window
, W_GC(scr
->darkGray
), x
, 0,
233 bPtr
->columnSize
.width
, bPtr
->titleHeight
);
234 W_DrawRelief(scr
, bPtr
->view
->window
, x
, 0,
235 bPtr
->columnSize
.width
, bPtr
->titleHeight
, WRSunken
);
237 if (column
< bPtr
->usedColumnCount
&& bPtr
->titles
[column
]) {
238 int titleLen
= strlen(bPtr
->titles
[column
]);
239 int widthC
= bPtr
->columnSize
.width
-8;
241 if (WMWidthOfString(scr
->boldFont
, bPtr
->titles
[column
], titleLen
)
243 char *titleBuf
= createTruncatedString(scr
->boldFont
,
244 bPtr
->titles
[column
],
246 W_PaintText(bPtr
->view
, bPtr
->view
->window
, scr
->boldFont
, x
,
247 (bPtr
->titleHeight
-WMFontHeight(scr
->boldFont
))/2,
248 bPtr
->columnSize
.width
, WACenter
, W_GC(scr
->white
),
249 False
, titleBuf
, titleLen
);
252 W_PaintText(bPtr
->view
, bPtr
->view
->window
, scr
->boldFont
, x
,
253 (bPtr
->titleHeight
-WMFontHeight(scr
->boldFont
))/2,
254 bPtr
->columnSize
.width
, WACenter
, W_GC(scr
->white
),
255 False
, bPtr
->titles
[column
], titleLen
);
262 WMSetBrowserColumnTitle(WMBrowser
*bPtr
, int column
, char *title
)
265 assert(column
< bPtr
->usedColumnCount
);
267 if (bPtr
->titles
[column
])
268 free(bPtr
->titles
[column
]);
270 bPtr
->titles
[column
] = (title
!=NULL
) ? wstrdup(title
) : wstrdup("");
272 if (COLUMN_IS_VISIBLE(bPtr
, column
) && bPtr
->flags
.isTitled
) {
273 drawTitleOfColumn(bPtr
, column
);
279 WMGetBrowserListInColumn(WMBrowser
*bPtr
, int column
)
281 if (column
< 0 || column
>= bPtr
->usedColumnCount
)
284 return bPtr
->columns
[column
];
289 WMSetBrowserFillColumnProc(WMBrowser
*bPtr
, WMBrowserFillColumnProc
*proc
)
291 bPtr
->fillColumn
= proc
;
296 WMGetBrowserFirstVisibleColumn(WMBrowser
*bPtr
)
298 return bPtr
->firstVisibleColumn
;
303 removeColumn(WMBrowser
*bPtr
, int column
)
305 int i
, clearEnd
, destroyEnd
;
311 column
= (column
< 0) ? 0 : column
;
312 if (column
>= bPtr
->columnCount
) {
315 if (column
< bPtr
->maxVisibleColumns
) {
316 clearEnd
= bPtr
->maxVisibleColumns
;
317 destroyEnd
= bPtr
->columnCount
;
318 bPtr
->columnCount
= bPtr
->maxVisibleColumns
;
321 destroyEnd
= bPtr
->columnCount
;
322 bPtr
->columnCount
= column
;
324 if (column
< bPtr
->usedColumnCount
) {
325 bPtr
->usedColumnCount
= column
;
327 for (i
=column
; i
< clearEnd
; i
++) {
328 if (bPtr
->titles
[i
]) {
329 free(bPtr
->titles
[i
]);
330 bPtr
->titles
[i
] = NULL
;
332 WMClearList(bPtr
->columns
[i
]);
334 for (;i
< destroyEnd
; i
++) {
335 if (bPtr
->titles
[i
]) {
336 free(bPtr
->titles
[i
]);
337 bPtr
->titles
[i
] = NULL
;
339 WMRemoveNotificationObserverWithName(bPtr
,
340 WMListSelectionDidChangeNotification
,
342 WMDestroyWidget(bPtr
->columns
[i
]);
343 bPtr
->columns
[i
] = NULL
;
345 clist
= wmalloc(sizeof(WMList
*) * (bPtr
->columnCount
));
346 tlist
= wmalloc(sizeof(char*) * (bPtr
->columnCount
));
347 memcpy(clist
, bPtr
->columns
, sizeof(WMList
*) * (bPtr
->columnCount
));
348 memcpy(tlist
, bPtr
->titles
, sizeof(char*) * (bPtr
->columnCount
));
351 bPtr
->titles
= tlist
;
352 bPtr
->columns
= clist
;
357 WMGetBrowserSelectedItemInColumn(WMBrowser
*bPtr
, int column
)
359 if ((column
< 0) || (column
>= bPtr
->usedColumnCount
))
362 return WMGetListSelectedItem(bPtr
->columns
[column
]);
368 WMGetBrowserSelectedColumn(WMBrowser
*bPtr
)
370 return bPtr
->selectedColumn
;
375 WMGetBrowserSelectedRowInColumn(WMBrowser
*bPtr
, int column
)
377 if (column
>= 0 && column
< bPtr
->columnCount
) {
378 return WMGetListSelectedItemRow(bPtr
->columns
[column
]);
386 WMSetBrowserTitled(WMBrowser
*bPtr
, Bool flag
)
389 int columnX
, columnY
;
391 if (bPtr
->flags
.isTitled
== flag
)
396 if (!bPtr
->flags
.isTitled
) {
397 columnY
= TITLE_SPACING
+ bPtr
->titleHeight
;
399 bPtr
->columnSize
.height
-= columnY
;
401 for (i
=0; i
<bPtr
->columnCount
; i
++) {
402 WMResizeWidget(bPtr
->columns
[i
], bPtr
->columnSize
.width
,
403 bPtr
->columnSize
.height
);
405 columnX
= WMWidgetView(bPtr
->columns
[i
])->pos
.x
;
407 WMMoveWidget(bPtr
->columns
[i
], columnX
, columnY
);
410 bPtr
->columnSize
.height
+= TITLE_SPACING
+ bPtr
->titleHeight
;
412 for (i
=0; i
<bPtr
->columnCount
; i
++) {
413 WMResizeWidget(bPtr
->columns
[i
], bPtr
->columnSize
.width
,
414 bPtr
->columnSize
.height
);
416 columnX
= WMWidgetView(bPtr
->columns
[i
])->pos
.x
;
418 WMMoveWidget(bPtr
->columns
[i
], columnX
, 0);
422 bPtr
->flags
.isTitled
= flag
;
427 WMAddSortedBrowserItem(WMBrowser
*bPtr
, int column
, char *text
, Bool isBranch
)
431 if (column
< 0 || column
>= bPtr
->columnCount
)
434 item
= WMAddSortedListItem(bPtr
->columns
[column
], text
);
435 item
->isBranch
= isBranch
;
443 WMInsertBrowserItem(WMBrowser
*bPtr
, int column
, int row
, char *text
,
448 if (column
< 0 || column
>= bPtr
->columnCount
)
451 item
= WMInsertListItem(bPtr
->columns
[column
], row
, text
);
452 item
->isBranch
= isBranch
;
461 resizeBrowser(WMWidget
*w
, unsigned int width
, unsigned int height
)
463 WMBrowser
*bPtr
= (WMBrowser
*)w
;
464 int cols
= bPtr
->maxVisibleColumns
;
471 bPtr
->columnSize
.width
= (width
-(cols
-1)*COLUMN_SPACING
) / cols
;
472 bPtr
->columnSize
.height
= height
;
474 if (bPtr
->flags
.isTitled
) {
475 colY
= TITLE_SPACING
+ bPtr
->titleHeight
;
476 bPtr
->columnSize
.height
-= colY
;
481 if (bPtr
->flags
.hasScroller
) {
482 bPtr
->columnSize
.height
-= SCROLLER_WIDTH
+ 4;
484 if (bPtr
->scroller
) {
485 WMResizeWidget(bPtr
->scroller
, width
-2, 1);
486 WMMoveWidget(bPtr
->scroller
, 1, height
-SCROLLER_WIDTH
-1);
491 for (i
= 0; i
< bPtr
->columnCount
; i
++) {
492 WMResizeWidget(bPtr
->columns
[i
], bPtr
->columnSize
.width
,
493 bPtr
->columnSize
.height
);
495 WMMoveWidget(bPtr
->columns
[i
], colX
, colY
);
497 if (COLUMN_IS_VISIBLE(bPtr
, i
)) {
498 colX
+= bPtr
->columnSize
.width
+COLUMN_SPACING
;
502 W_ResizeView(bPtr
->view
, width
, height
);
507 paintItem(WMList
*lPtr
, int index
, Drawable d
, char *text
, int state
,
510 WMView
*view
= W_VIEW(lPtr
);
511 W_Screen
*scr
= view
->screen
;
512 int width
, height
, x
, y
;
514 width
= rect
->size
.width
;
515 height
= rect
->size
.height
;
519 if (state
& WLDSSelected
)
520 XFillRectangle(scr
->display
, d
, W_GC(scr
->white
), x
, y
,
523 XClearArea(scr
->display
, d
, x
, y
, width
, height
, False
);
526 /* Avoid overlaping... */
527 int textLen
= strlen(text
);
528 int widthC
= (state
& WLDSIsBranch
) ? width
-20 : width
-8;
529 if (WMWidthOfString(scr
->normalFont
, text
, textLen
) > widthC
) {
530 char *textBuf
= createTruncatedString(scr
->normalFont
,
531 text
, &textLen
, widthC
);
532 W_PaintText(view
, d
, scr
->normalFont
, x
+4, y
, widthC
,
533 WALeft
, W_GC(scr
->black
), False
, textBuf
, textLen
);
536 W_PaintText(view
, d
, scr
->normalFont
, x
+4, y
, widthC
,
537 WALeft
, W_GC(scr
->black
), False
, text
, textLen
);
541 if (state
& WLDSIsBranch
) {
542 XDrawLine(scr
->display
, d
, W_GC(scr
->darkGray
), x
+width
-11, y
+3,
543 x
+width
-6, y
+height
/2);
544 if (state
& WLDSSelected
)
545 XDrawLine(scr
->display
, d
,W_GC(scr
->gray
), x
+width
-11, y
+height
-5,
546 x
+width
-6, y
+height
/2);
548 XDrawLine(scr
->display
, d
,W_GC(scr
->white
), x
+width
-11, y
+height
-5,
549 x
+width
-6, y
+height
/2);
550 XDrawLine(scr
->display
, d
, W_GC(scr
->black
), x
+width
-12, y
+3,
551 x
+width
-12, y
+height
-5);
557 scrollCallback(WMWidget
*scroller
, void *self
)
559 WMBrowser
*bPtr
= (WMBrowser
*)self
;
560 WMScroller
*sPtr
= (WMScroller
*)scroller
;
562 #define LAST_VISIBLE_COLUMN bPtr->firstVisibleColumn+bPtr->maxVisibleColumns
564 switch (WMGetScrollerHitPart(sPtr
)) {
565 case WSDecrementLine
:
566 if (bPtr
->firstVisibleColumn
> 0) {
567 scrollToColumn(bPtr
, bPtr
->firstVisibleColumn
-1, True
);
571 case WSDecrementPage
:
572 if (bPtr
->firstVisibleColumn
> 0) {
573 newFirst
= bPtr
->firstVisibleColumn
- bPtr
->maxVisibleColumns
;
575 scrollToColumn(bPtr
, newFirst
, True
);
580 case WSIncrementLine
:
581 if (LAST_VISIBLE_COLUMN
< bPtr
->usedColumnCount
) {
582 scrollToColumn(bPtr
, bPtr
->firstVisibleColumn
+1, True
);
586 case WSIncrementPage
:
587 if (LAST_VISIBLE_COLUMN
< bPtr
->usedColumnCount
) {
588 newFirst
= bPtr
->firstVisibleColumn
+ bPtr
->maxVisibleColumns
;
590 if (newFirst
+bPtr
->maxVisibleColumns
>= bPtr
->columnCount
)
591 newFirst
= bPtr
->columnCount
- bPtr
->maxVisibleColumns
;
593 scrollToColumn(bPtr
, newFirst
, True
);
600 double value
= bPtr
->columnCount
- bPtr
->maxVisibleColumns
;
602 floatValue
= WMGetScrollerValue(bPtr
->scroller
);
604 floatValue
= (floatValue
*value
)/value
;
606 newFirst
= rint(floatValue
*(float)(bPtr
->columnCount
- bPtr
->maxVisibleColumns
));
608 if (bPtr
->firstVisibleColumn
!= newFirst
)
609 scrollToColumn(bPtr
, newFirst
, False
);
611 WMSetScrollerParameters(bPtr->scroller, floatValue,
612 bPtr->maxVisibleColumns/(float)bPtr->columnCount);
623 #undef LAST_VISIBLE_COLUMN
628 setupScroller(WMBrowser
*bPtr
)
633 y
= bPtr
->view
->size
.height
- SCROLLER_WIDTH
- 1;
635 sPtr
= WMCreateScroller(bPtr
);
636 WMSetScrollerAction(sPtr
, scrollCallback
, bPtr
);
637 WMMoveWidget(sPtr
, 1, y
);
638 WMResizeWidget(sPtr
, bPtr
->view
->size
.width
-2, SCROLLER_WIDTH
);
640 bPtr
->scroller
= sPtr
;
647 WMSetBrowserAction(WMBrowser
*bPtr
, WMAction
*action
, void *clientData
)
649 bPtr
->action
= action
;
650 bPtr
->clientData
= clientData
;
655 WMSetBrowserDoubleAction(WMBrowser
*bPtr
, WMAction
*action
, void *clientData
)
657 bPtr
->doubleAction
= action
;
658 bPtr
->doubleClientData
= clientData
;
663 WMSetBrowserHasScroller(WMBrowser
*bPtr
, int hasScroller
)
665 bPtr
->flags
.hasScroller
= hasScroller
;
671 WMSetBrowserPath(WMBrowser
*bPtr
, char *path
)
674 char *str
= wstrdup(path
);
675 char *tmp
, *retPtr
= NULL
;
677 WMListItem
*listItem
;
679 /* WMLoadBrowserColumnZero must be call first */
680 if (!bPtr
->flags
.loaded
) {
684 removeColumn(bPtr
, 1);
687 tmp
= strtok(str
, bPtr
->pathSeparator
);
689 /* select it in the column */
690 item
= WMFindRowOfListItemWithTitle(bPtr
->columns
[i
], tmp
);
692 retPtr
= &path
[(int)(tmp
- str
)];
695 WMSelectListItem(bPtr
->columns
[i
], item
);
696 WMSetListPosition(bPtr
->columns
[i
], item
);
698 listItem
= WMGetListItem(bPtr
->columns
[i
], item
);
699 if (!listItem
|| !listItem
->isBranch
) {
703 /* load next column */
704 WMAddBrowserColumn(bPtr
);
706 loadColumn(bPtr
, i
+1);
708 tmp
= strtok(NULL
, bPtr
->pathSeparator
);
714 for (i
= bPtr
->usedColumnCount
- 1;
715 (i
> -1) && !WMGetListSelectedItem(bPtr
->columns
[i
]);
718 bPtr
->selectedColumn
= i
;
720 if (bPtr
->columnCount
< bPtr
->maxVisibleColumns
) {
721 int i
= bPtr
->maxVisibleColumns
- bPtr
->columnCount
;
722 int curUsedColumnCount
= bPtr
->usedColumnCount
;
723 bPtr
->usedColumnCount
= bPtr
->columnCount
;
725 WMAddBrowserColumn(bPtr
);
727 bPtr
->usedColumnCount
= curUsedColumnCount
;
730 scrollToColumn(bPtr
, bPtr
->columnCount
- bPtr
->maxVisibleColumns
, True
);
737 WMGetBrowserPath(WMBrowser
*bPtr
)
739 return WMGetBrowserPathToColumn(bPtr
, bPtr
->columnCount
);
744 WMGetBrowserPathToColumn(WMBrowser
*bPtr
, int column
)
750 if (column
>= bPtr
->usedColumnCount
)
751 column
= bPtr
->usedColumnCount
-1;
754 return wstrdup(bPtr
->pathSeparator
);
757 /* calculate size of buffer */
759 for (i
= 0; i
<= column
; i
++) {
760 item
= WMGetListSelectedItem(bPtr
->columns
[i
]);
763 size
+= strlen(item
->text
);
767 path
= wmalloc(size
+(column
+1)*strlen(bPtr
->pathSeparator
)+1);
770 for (i
= 0; i
<= column
; i
++) {
771 strcat(path
, bPtr
->pathSeparator
);
772 item
= WMGetListSelectedItem(bPtr
->columns
[i
]);
775 strcat(path
, item
->text
);
783 loadColumn(WMBrowser
*bPtr
, int column
)
785 assert(bPtr
->fillColumn
);
787 bPtr
->flags
.loadingColumn
= 1;
788 (*bPtr
->fillColumn
)(bPtr
, column
);
789 bPtr
->flags
.loadingColumn
= 0;
794 paintBrowser(WMBrowser
*bPtr
)
798 if (!bPtr
->view
->flags
.mapped
)
801 W_DrawRelief(bPtr
->view
->screen
, bPtr
->view
->window
, 0,
802 bPtr
->view
->size
.height
-SCROLLER_WIDTH
-2,
803 bPtr
->view
->size
.width
, 22, WRSunken
);
805 if (bPtr
->flags
.isTitled
) {
806 for (i
=0; i
<bPtr
->maxVisibleColumns
; i
++) {
807 drawTitleOfColumn(bPtr
, i
+bPtr
->firstVisibleColumn
);
814 handleEvents(XEvent
*event
, void *data
)
816 WMBrowser
*bPtr
= (WMBrowser
*)data
;
818 CHECK_CLASS(data
, WC_Browser
);
821 switch (event
->type
) {
827 destroyBrowser(bPtr
);
836 scrollToColumn(WMBrowser
*bPtr
, int column
, Bool updateScroller
)
843 if (column
!= bPtr
->firstVisibleColumn
)
850 bPtr
->firstVisibleColumn
= column
;
851 for (i
= 0; i
< bPtr
->columnCount
; i
++) {
852 if (COLUMN_IS_VISIBLE(bPtr
, i
)) {
853 WMMoveWidget(bPtr
->columns
[i
], x
,
854 WMWidgetView(bPtr
->columns
[i
])->pos
.y
);
855 if (!WMWidgetView(bPtr
->columns
[i
])->flags
.realized
)
856 WMRealizeWidget(bPtr
->columns
[i
]);
857 WMMapWidget(bPtr
->columns
[i
]);
858 x
+= bPtr
->columnSize
.width
+COLUMN_SPACING
;
860 WMUnmapWidget(bPtr
->columns
[i
]);
864 /* update the scroller */
865 if (updateScroller
) {
866 if (bPtr
->columnCount
> bPtr
->maxVisibleColumns
) {
867 float value
, proportion
;
869 value
= bPtr
->firstVisibleColumn
870 /(float)(bPtr
->columnCount
-bPtr
->maxVisibleColumns
);
871 proportion
= bPtr
->maxVisibleColumns
/(float)bPtr
->columnCount
;
872 WMSetScrollerParameters(bPtr
->scroller
, value
, proportion
);
874 WMSetScrollerParameters(bPtr
->scroller
, 0, 1);
878 if (bPtr
->view
->flags
.mapped
)
882 WMPostNotificationName(WMBrowserDidScrollNotification
, bPtr
, NULL
);
887 listCallback(void *self
, void *clientData
)
889 WMBrowser
*bPtr
= (WMBrowser
*)clientData
;
890 WMList
*lPtr
= (WMList
*)self
;
892 static WMListItem
*oldItem
= NULL
;
895 item
= WMGetListSelectedItem(lPtr
);
901 if (oldItem
!= item
) {
902 for (i
=0; i
<bPtr
->columnCount
; i
++) {
903 if (lPtr
== bPtr
->columns
[i
])
906 assert(i
<bPtr
->columnCount
);
908 /* columns at right must be cleared */
909 removeColumn(bPtr
, i
+1);
911 if (item
->isBranch
) {
912 WMAddBrowserColumn(bPtr
);
913 loadColumn(bPtr
, bPtr
->usedColumnCount
-1);
915 if (bPtr
->usedColumnCount
< bPtr
->maxVisibleColumns
)
918 i
= bPtr
->usedColumnCount
-bPtr
->maxVisibleColumns
;
919 scrollToColumn(bPtr
, i
, True
);
922 /* call callback for click */
924 (*bPtr
->action
)(bPtr
, bPtr
->clientData
);
931 listDoubleCallback(void *self
, void *clientData
)
933 WMBrowser
*bPtr
= (WMBrowser
*)clientData
;
934 WMList
*lPtr
= (WMList
*)self
;
937 item
= WMGetListSelectedItem(lPtr
);
941 /* call callback for double click */
942 if (bPtr
->doubleAction
)
943 (*bPtr
->doubleAction
)(bPtr
, bPtr
->doubleClientData
);
948 WMLoadBrowserColumnZero(WMBrowser
*bPtr
)
950 if (!bPtr
->flags
.loaded
) {
951 /* create column 0 */
952 WMAddBrowserColumn(bPtr
);
956 /* make column 0 visible */
957 scrollToColumn(bPtr
, 0, True
);
959 bPtr
->flags
.loaded
= 1;
965 WMRemoveBrowserItem(WMBrowser
*bPtr
, int column
, int row
)
969 if (column
< 0 || column
>= bPtr
->usedColumnCount
)
972 list
= WMGetBrowserListInColumn(bPtr
, column
);
974 if (row
< 0 || row
>= WMGetListNumberOfRows(list
))
977 removeColumn(bPtr
, column
+1);
978 if (bPtr
->usedColumnCount
< bPtr
->maxVisibleColumns
)
979 scrollToColumn(bPtr
, 0, True
);
981 scrollToColumn(bPtr
, bPtr
->usedColumnCount
-bPtr
->maxVisibleColumns
,
984 WMRemoveListItem(list
, row
);
989 listSelectionObserver(void *observerData
, WMNotification
*notification
)
991 WMBrowser
*bPtr
= (WMBrowser
*)observerData
;
992 int column
, item
= (int)WMGetNotificationClientData(notification
);
993 WMList
*lPtr
= (WMList
*)WMGetNotificationObject(notification
);
995 for (column
=0; column
<bPtr
->usedColumnCount
; column
++)
996 if (bPtr
->columns
[column
] == lPtr
)
999 /* this can happen when a list is being cleared with WMClearList
1000 * after the column was removed */
1001 if (column
>= bPtr
->usedColumnCount
) {
1008 bPtr
->selectedColumn
= column
;
1013 WMAddBrowserColumn(WMBrowser
*bPtr
)
1022 if (bPtr
->usedColumnCount
< bPtr
->columnCount
) {
1023 return bPtr
->usedColumnCount
++;
1026 bPtr
->usedColumnCount
++;
1028 if (bPtr
->flags
.isTitled
) {
1029 colY
= TITLE_SPACING
+ bPtr
->titleHeight
;
1034 index
= bPtr
->columnCount
;
1035 bPtr
->columnCount
++;
1036 clist
= wmalloc(sizeof(WMList
*)*bPtr
->columnCount
);
1037 tlist
= wmalloc(sizeof(char*)*bPtr
->columnCount
);
1038 memcpy(clist
, bPtr
->columns
, sizeof(WMList
*)*(bPtr
->columnCount
-1));
1039 memcpy(tlist
, bPtr
->titles
, sizeof(char*)*(bPtr
->columnCount
-1));
1041 free(bPtr
->columns
);
1044 bPtr
->columns
= clist
;
1045 bPtr
->titles
= tlist
;
1047 bPtr
->titles
[index
] = NULL
;
1049 list
= WMCreateList(bPtr
);
1050 WMSetListAction(list
, listCallback
, bPtr
);
1051 WMSetListDoubleAction(list
, listDoubleCallback
, bPtr
);
1052 WMSetListUserDrawProc(list
, paintItem
);
1053 WMAddNotificationObserver(listSelectionObserver
, bPtr
,
1054 WMListSelectionDidChangeNotification
, list
);
1056 bPtr
->columns
[index
] = list
;
1058 WMResizeWidget(list
, bPtr
->columnSize
.width
, bPtr
->columnSize
.height
);
1059 WMMoveWidget(list
, (bPtr
->columnSize
.width
+COLUMN_SPACING
)*index
, colY
);
1060 if (COLUMN_IS_VISIBLE(bPtr
, index
))
1063 /* update the scroller */
1064 if (bPtr
->columnCount
> bPtr
->maxVisibleColumns
) {
1065 float value
, proportion
;
1067 value
= bPtr
->firstVisibleColumn
1068 /(float)(bPtr
->columnCount
-bPtr
->maxVisibleColumns
);
1069 proportion
= bPtr
->maxVisibleColumns
/(float)bPtr
->columnCount
;
1070 WMSetScrollerParameters(bPtr
->scroller
, value
, proportion
);
1079 destroyBrowser(WMBrowser
*bPtr
)
1083 for (i
=0; i
<bPtr
->columnCount
; i
++) {
1084 if (bPtr
->titles
[i
])
1085 free(bPtr
->titles
[i
]);
1089 free(bPtr
->pathSeparator
);
1091 WMRemoveNotificationObserver(bPtr
);
1098 createTruncatedString(WMFont
*font
, char *text
, int *textLen
, int width
)
1100 int dLen
= WMWidthOfString(font
, ".", 1);
1101 char *textBuf
= (char*)wmalloc((*textLen
)+4);
1103 if (width
>= 3*dLen
) {
1104 int dddLen
= 3*dLen
;
1105 int tmpTextLen
= *textLen
;
1107 strcpy(textBuf
, text
);
1109 && (WMWidthOfString(font
, textBuf
, tmpTextLen
)+dddLen
> width
))
1111 strcpy(textBuf
+tmpTextLen
, "...");
1112 *textLen
= tmpTextLen
+3;
1113 } else if (width
>= 2*dLen
) {
1114 strcpy(textBuf
, "..");
1116 } else if (width
>= dLen
) {
1117 strcpy(textBuf
, ".");