6 #include <math.h> /* for : double rint (double) */
10 typedef struct W_Browser
{
18 short usedColumnCount
; /* columns actually being used */
21 short maxVisibleColumns
;
22 short firstVisibleColumn
;
33 void *doubleClientData
;
34 WMAction
*doubleAction
;
36 WMBrowserDelegate
*delegate
;
43 unsigned int isTitled
:1;
44 unsigned int allowMultipleSelection
:1;
45 unsigned int allowEmptySelection
:1;
46 unsigned int hasScroller
:1;
49 unsigned int loaded
:1;
50 unsigned int loadingColumn
:1;
55 #define COLUMN_SPACING 4
56 #define TITLE_SPACING 2
58 #define DEFAULT_WIDTH 305
59 #define DEFAULT_HEIGHT 200
60 #define DEFAULT_HAS_SCROLLER True
61 #define DEFAULT_TITLE_HEIGHT 20
62 #define DEFAULT_IS_TITLED True
63 #define DEFAULT_MAX_VISIBLE_COLUMNS 2
64 #define DEFAULT_SEPARATOR "/"
66 #define MIN_VISIBLE_COLUMNS 1
67 #define MAX_VISIBLE_COLUMNS 32
70 #define COLUMN_IS_VISIBLE(b, c) ((c) >= (b)->firstVisibleColumn \
71 && (c) < (b)->firstVisibleColumn + (b)->maxVisibleColumns)
74 static void handleEvents(XEvent
*event
, void *data
);
75 static void destroyBrowser(WMBrowser
*bPtr
);
77 static void setupScroller(WMBrowser
*bPtr
);
79 static void scrollToColumn(WMBrowser
*bPtr
, int column
, Bool updateScroller
);
81 static void paintItem(WMList
*lPtr
, int index
, Drawable d
, char *text
,
82 int state
, WMRect
*rect
);
84 static void loadColumn(WMBrowser
*bPtr
, int column
);
86 static void removeColumn(WMBrowser
*bPtr
, int column
);
88 static char* createTruncatedString(WMFont
*font
, char *text
, int *textLen
,
91 static void willResizeBrowser(W_ViewDelegate
*, WMView
*,
92 unsigned int*, unsigned int*);
94 W_ViewDelegate _BrowserViewDelegate
= {
105 WMCreateBrowser(WMWidget
*parent
)
110 wassertrv(parent
, NULL
);
112 bPtr
= wmalloc(sizeof(WMBrowser
));
113 memset(bPtr
, 0, sizeof(WMBrowser
));
115 bPtr
->widgetClass
= WC_Browser
;
117 bPtr
->view
= W_CreateView(W_VIEW(parent
));
122 bPtr
->view
->self
= bPtr
;
124 bPtr
->view
->delegate
= &_BrowserViewDelegate
;
126 WMCreateEventHandler(bPtr
->view
, ExposureMask
|StructureNotifyMask
127 |ClientMessageMask
, handleEvents
, bPtr
);
129 /* default configuration */
130 bPtr
->flags
.hasScroller
= DEFAULT_HAS_SCROLLER
;
132 bPtr
->titleHeight
= DEFAULT_TITLE_HEIGHT
;
133 bPtr
->flags
.isTitled
= DEFAULT_IS_TITLED
;
134 bPtr
->maxVisibleColumns
= DEFAULT_MAX_VISIBLE_COLUMNS
;
136 WMResizeWidget(bPtr
, DEFAULT_WIDTH
, DEFAULT_HEIGHT
);
138 bPtr
->pathSeparator
= wstrdup(DEFAULT_SEPARATOR
);
140 if (bPtr
->flags
.hasScroller
)
143 for (i
=0; i
<bPtr
->maxVisibleColumns
; i
++) {
144 WMAddBrowserColumn(bPtr
);
146 bPtr
->usedColumnCount
= 0;
148 bPtr
->selectedColumn
= -1;
155 WMSetBrowserAllowMultipleSelection(WMBrowser
*bPtr
, Bool flag
)
159 bPtr
->flags
.allowMultipleSelection
= ((flag
==0) ? 0 : 1);
160 for (i
=0; i
<bPtr
->columnCount
; i
++) {
161 WMSetListAllowMultipleSelection(bPtr
->columns
[i
], flag
);
167 WMSetBrowserAllowEmptySelection(WMBrowser
*bPtr
, Bool flag
)
171 bPtr
->flags
.allowEmptySelection
= ((flag
==0) ? 0 : 1);
172 for (i
=0; i
<bPtr
->columnCount
; i
++) {
173 WMSetListAllowEmptySelection(bPtr
->columns
[i
], flag
);
179 WMGetBrowserMaxVisibleColumns(WMBrowser
*bPtr
)
181 return bPtr
->maxVisibleColumns
;
186 WMSetBrowserMaxVisibleColumns(WMBrowser
*bPtr
, int columns
)
188 int curMaxVisibleColumns
;
189 int newFirstVisibleColumn
= 0;
193 columns
= (columns
< MIN_VISIBLE_COLUMNS
) ? MIN_VISIBLE_COLUMNS
: columns
;
194 columns
= (columns
> MAX_VISIBLE_COLUMNS
) ? MAX_VISIBLE_COLUMNS
: columns
;
195 if (columns
== bPtr
->maxVisibleColumns
) {
198 curMaxVisibleColumns
= bPtr
->maxVisibleColumns
;
199 bPtr
->maxVisibleColumns
= columns
;
200 /* browser not loaded */
201 if (!bPtr
->flags
.loaded
) {
202 if ((columns
> curMaxVisibleColumns
) && (columns
> bPtr
->columnCount
)) {
203 int i
= columns
- bPtr
->columnCount
;
204 bPtr
->usedColumnCount
= bPtr
->columnCount
;
206 WMAddBrowserColumn(bPtr
);
208 bPtr
->usedColumnCount
= 0;
210 /* browser loaded and columns > curMaxVisibleColumns */
211 } else if (columns
> curMaxVisibleColumns
) {
212 if (bPtr
->usedColumnCount
> columns
) {
213 newFirstVisibleColumn
= bPtr
->usedColumnCount
- columns
;
215 if (newFirstVisibleColumn
> bPtr
->firstVisibleColumn
) {
216 newFirstVisibleColumn
= bPtr
->firstVisibleColumn
;
218 if (columns
> bPtr
->columnCount
) {
219 int i
= columns
- bPtr
->columnCount
;
220 int curUsedColumnCount
= bPtr
->usedColumnCount
;
221 bPtr
->usedColumnCount
= bPtr
->columnCount
;
223 WMAddBrowserColumn(bPtr
);
225 bPtr
->usedColumnCount
= curUsedColumnCount
;
227 /* browser loaded and columns < curMaxVisibleColumns */
229 newFirstVisibleColumn
= bPtr
->firstVisibleColumn
;
230 if (newFirstVisibleColumn
+ columns
>= bPtr
->usedColumnCount
) {
231 removeColumn(bPtr
, newFirstVisibleColumn
+ columns
);
234 WMResizeWidget(bPtr
, bPtr
->view
->size
.width
, bPtr
->view
->size
.height
);
235 if (bPtr
->flags
.loaded
) {
236 XClearArea(bPtr
->view
->screen
->display
, bPtr
->view
->window
, 0, 0,
237 bPtr
->view
->size
.width
, bPtr
->titleHeight
, False
);
238 scrollToColumn (bPtr
, newFirstVisibleColumn
, True
);
244 WMGetBrowserNumberOfColumns(WMBrowser
*bPtr
)
246 return bPtr
->usedColumnCount
;
250 WMSetBrowserPathSeparator(WMBrowser
*bPtr
, char *separator
)
252 if (bPtr
->pathSeparator
)
253 wfree(bPtr
->pathSeparator
);
254 bPtr
->pathSeparator
= wstrdup(separator
);
260 drawTitleOfColumn(WMBrowser
*bPtr
, int column
)
262 WMScreen
*scr
= bPtr
->view
->screen
;
265 x
=(column
-bPtr
->firstVisibleColumn
)*(bPtr
->columnSize
.width
+COLUMN_SPACING
);
267 XFillRectangle(scr
->display
, bPtr
->view
->window
, WMColorGC(scr
->darkGray
), x
, 0,
268 bPtr
->columnSize
.width
, bPtr
->titleHeight
);
269 W_DrawRelief(scr
, bPtr
->view
->window
, x
, 0,
270 bPtr
->columnSize
.width
, bPtr
->titleHeight
, WRSunken
);
272 if (column
< bPtr
->usedColumnCount
&& bPtr
->titles
[column
]) {
273 int titleLen
= strlen(bPtr
->titles
[column
]);
274 int widthC
= bPtr
->columnSize
.width
-8;
276 if (WMWidthOfString(scr
->boldFont
, bPtr
->titles
[column
], titleLen
)
278 char *titleBuf
= createTruncatedString(scr
->boldFont
,
279 bPtr
->titles
[column
],
281 W_PaintText(bPtr
->view
, bPtr
->view
->window
, scr
->boldFont
, x
,
282 (bPtr
->titleHeight
-WMFontHeight(scr
->boldFont
))/2,
283 bPtr
->columnSize
.width
, WACenter
, WMColorGC(scr
->white
),
284 False
, titleBuf
, titleLen
);
287 W_PaintText(bPtr
->view
, bPtr
->view
->window
, scr
->boldFont
, x
,
288 (bPtr
->titleHeight
-WMFontHeight(scr
->boldFont
))/2,
289 bPtr
->columnSize
.width
, WACenter
, WMColorGC(scr
->white
),
290 False
, bPtr
->titles
[column
], titleLen
);
297 WMGetBrowserListInColumn(WMBrowser
*bPtr
, int column
)
299 if (column
< 0 || column
>= bPtr
->usedColumnCount
)
302 return bPtr
->columns
[column
];
307 WMSetBrowserDelegate(WMBrowser
*bPtr
, WMBrowserDelegate
*delegate
)
309 bPtr
->delegate
= delegate
;
314 WMGetBrowserFirstVisibleColumn(WMBrowser
*bPtr
)
316 return bPtr
->firstVisibleColumn
;
321 removeColumn(WMBrowser
*bPtr
, int column
)
323 int i
, clearEnd
, destroyEnd
;
329 column
= (column
< 0) ? 0 : column
;
330 if (column
>= bPtr
->columnCount
) {
333 if (column
< bPtr
->maxVisibleColumns
) {
334 clearEnd
= bPtr
->maxVisibleColumns
;
335 destroyEnd
= bPtr
->columnCount
;
336 bPtr
->columnCount
= bPtr
->maxVisibleColumns
;
339 destroyEnd
= bPtr
->columnCount
;
340 bPtr
->columnCount
= column
;
342 if (column
< bPtr
->usedColumnCount
) {
343 bPtr
->usedColumnCount
= column
;
345 for (i
=column
; i
< clearEnd
; i
++) {
346 if (bPtr
->titles
[i
]) {
347 wfree(bPtr
->titles
[i
]);
348 bPtr
->titles
[i
] = NULL
;
350 WMClearList(bPtr
->columns
[i
]);
352 for (;i
< destroyEnd
; i
++) {
353 if (bPtr
->titles
[i
]) {
354 wfree(bPtr
->titles
[i
]);
355 bPtr
->titles
[i
] = NULL
;
357 WMRemoveNotificationObserverWithName(bPtr
,
358 WMListSelectionDidChangeNotification
,
360 WMDestroyWidget(bPtr
->columns
[i
]);
361 bPtr
->columns
[i
] = NULL
;
363 clist
= wmalloc(sizeof(WMList
*) * (bPtr
->columnCount
));
364 tlist
= wmalloc(sizeof(char*) * (bPtr
->columnCount
));
365 memcpy(clist
, bPtr
->columns
, sizeof(WMList
*) * (bPtr
->columnCount
));
366 memcpy(tlist
, bPtr
->titles
, sizeof(char*) * (bPtr
->columnCount
));
368 wfree(bPtr
->columns
);
369 bPtr
->titles
= tlist
;
370 bPtr
->columns
= clist
;
375 WMGetBrowserSelectedItemInColumn(WMBrowser
*bPtr
, int column
)
377 if ((column
< 0) || (column
>= bPtr
->usedColumnCount
))
380 return WMGetListSelectedItem(bPtr
->columns
[column
]);
386 WMGetBrowserSelectedColumn(WMBrowser
*bPtr
)
388 return bPtr
->selectedColumn
;
393 WMGetBrowserSelectedRowInColumn(WMBrowser
*bPtr
, int column
)
395 if (column
>= 0 && column
< bPtr
->columnCount
) {
396 return WMGetListSelectedItemRow(bPtr
->columns
[column
]);
404 WMSetBrowserColumnTitle(WMBrowser
*bPtr
, int column
, char *title
)
407 assert(column
< bPtr
->usedColumnCount
);
409 if (bPtr
->titles
[column
])
410 wfree(bPtr
->titles
[column
]);
412 bPtr
->titles
[column
] = wstrdup(title
);
414 if (COLUMN_IS_VISIBLE(bPtr
, column
) && bPtr
->flags
.isTitled
) {
415 drawTitleOfColumn(bPtr
, column
);
421 WMSetBrowserTitled(WMBrowser
*bPtr
, Bool flag
)
424 int columnX
, columnY
;
426 flag
= ((flag
==0) ? 0 : 1);
428 if (bPtr
->flags
.isTitled
== flag
)
433 if (!bPtr
->flags
.isTitled
) {
434 columnY
= TITLE_SPACING
+ bPtr
->titleHeight
;
436 bPtr
->columnSize
.height
-= columnY
;
438 for (i
=0; i
<bPtr
->columnCount
; i
++) {
439 WMResizeWidget(bPtr
->columns
[i
], bPtr
->columnSize
.width
,
440 bPtr
->columnSize
.height
);
442 columnX
= WMWidgetView(bPtr
->columns
[i
])->pos
.x
;
444 WMMoveWidget(bPtr
->columns
[i
], columnX
, columnY
);
447 bPtr
->columnSize
.height
+= TITLE_SPACING
+ bPtr
->titleHeight
;
449 for (i
=0; i
<bPtr
->columnCount
; i
++) {
450 WMResizeWidget(bPtr
->columns
[i
], bPtr
->columnSize
.width
,
451 bPtr
->columnSize
.height
);
453 columnX
= WMWidgetView(bPtr
->columns
[i
])->pos
.x
;
455 WMMoveWidget(bPtr
->columns
[i
], columnX
, 0);
459 bPtr
->flags
.isTitled
= flag
;
464 WMSortBrowserColumn(WMBrowser
*bPtr
, int column
)
466 WMSortListItems(bPtr
->columns
[column
]);
471 WMSortBrowserColumnWithComparer(WMBrowser
*bPtr
, int column
,
472 WMCompareDataProc
*func
)
474 WMSortListItemsWithComparer(bPtr
->columns
[column
], func
);
480 WMInsertBrowserItem(WMBrowser
*bPtr
, int column
, int row
, char *text
,
485 if (column
< 0 || column
>= bPtr
->columnCount
)
488 item
= WMInsertListItem(bPtr
->columns
[column
], row
, text
);
489 item
->isBranch
= isBranch
;
498 willResizeBrowser(W_ViewDelegate
*self
, WMView
*view
,
499 unsigned int *width
, unsigned int *height
)
501 WMBrowser
*bPtr
= (WMBrowser
*)view
->self
;
502 int cols
= bPtr
->maxVisibleColumns
;
509 bPtr
->columnSize
.width
= (*width
-(cols
-1)*COLUMN_SPACING
) / cols
;
510 bPtr
->columnSize
.height
= *height
;
512 if (bPtr
->flags
.isTitled
) {
513 colY
= TITLE_SPACING
+ bPtr
->titleHeight
;
514 bPtr
->columnSize
.height
-= colY
;
519 if (bPtr
->flags
.hasScroller
) {
520 bPtr
->columnSize
.height
-= SCROLLER_WIDTH
+ 4;
522 if (bPtr
->scroller
) {
523 WMResizeWidget(bPtr
->scroller
, *width
-2, 1);
524 WMMoveWidget(bPtr
->scroller
, 1, *height
-SCROLLER_WIDTH
-1);
529 for (i
= 0; i
< bPtr
->columnCount
; i
++) {
530 WMResizeWidget(bPtr
->columns
[i
], bPtr
->columnSize
.width
,
531 bPtr
->columnSize
.height
);
533 WMMoveWidget(bPtr
->columns
[i
], colX
, colY
);
535 if (COLUMN_IS_VISIBLE(bPtr
, i
)) {
536 colX
+= bPtr
->columnSize
.width
+COLUMN_SPACING
;
543 paintItem(WMList
*lPtr
, int index
, Drawable d
, char *text
, int state
,
546 WMView
*view
= W_VIEW(lPtr
);
547 W_Screen
*scr
= view
->screen
;
548 int width
, height
, x
, y
;
550 width
= rect
->size
.width
;
551 height
= rect
->size
.height
;
555 if (state
& WLDSSelected
)
556 XFillRectangle(scr
->display
, d
, WMColorGC(scr
->white
), x
, y
,
559 XClearArea(scr
->display
, d
, x
, y
, width
, height
, False
);
562 /* Avoid overlaping... */
563 WMFont
*font
= (state
& WLDSIsBranch
) ? scr
->boldFont
: scr
->normalFont
;
564 int textLen
= strlen(text
);
565 int widthC
= (state
& WLDSIsBranch
) ? width
-20 : width
-8;
566 if (WMWidthOfString(font
, text
, textLen
) > widthC
) {
567 char *textBuf
= createTruncatedString(font
, text
, &textLen
, widthC
);
568 W_PaintText(view
, d
, font
, x
+4, y
, widthC
,
569 WALeft
, WMColorGC(scr
->black
), False
, textBuf
, textLen
);
572 W_PaintText(view
, d
, font
, x
+4, y
, widthC
,
573 WALeft
, WMColorGC(scr
->black
), False
, text
, textLen
);
577 if (state
& WLDSIsBranch
) {
578 XDrawLine(scr
->display
, d
, WMColorGC(scr
->darkGray
), x
+width
-11, y
+3,
579 x
+width
-6, y
+height
/2);
580 if (state
& WLDSSelected
)
581 XDrawLine(scr
->display
, d
,WMColorGC(scr
->gray
), x
+width
-11, y
+height
-5,
582 x
+width
-6, y
+height
/2);
584 XDrawLine(scr
->display
, d
,WMColorGC(scr
->white
), x
+width
-11, y
+height
-5,
585 x
+width
-6, y
+height
/2);
586 XDrawLine(scr
->display
, d
, WMColorGC(scr
->black
), x
+width
-12, y
+3,
587 x
+width
-12, y
+height
-5);
593 scrollCallback(WMWidget
*scroller
, void *self
)
595 WMBrowser
*bPtr
= (WMBrowser
*)self
;
596 WMScroller
*sPtr
= (WMScroller
*)scroller
;
598 #define LAST_VISIBLE_COLUMN bPtr->firstVisibleColumn+bPtr->maxVisibleColumns
600 switch (WMGetScrollerHitPart(sPtr
)) {
601 case WSDecrementLine
:
602 if (bPtr
->firstVisibleColumn
> 0) {
603 scrollToColumn(bPtr
, bPtr
->firstVisibleColumn
-1, True
);
607 case WSDecrementPage
:
608 case WSDecrementWheel
:
609 if (bPtr
->firstVisibleColumn
> 0) {
610 newFirst
= bPtr
->firstVisibleColumn
- bPtr
->maxVisibleColumns
;
612 scrollToColumn(bPtr
, newFirst
, True
);
617 case WSIncrementLine
:
618 if (LAST_VISIBLE_COLUMN
< bPtr
->usedColumnCount
) {
619 scrollToColumn(bPtr
, bPtr
->firstVisibleColumn
+1, True
);
623 case WSIncrementPage
:
624 case WSIncrementWheel
:
625 if (LAST_VISIBLE_COLUMN
< bPtr
->usedColumnCount
) {
626 newFirst
= bPtr
->firstVisibleColumn
+ bPtr
->maxVisibleColumns
;
628 if (newFirst
+bPtr
->maxVisibleColumns
>= bPtr
->columnCount
)
629 newFirst
= bPtr
->columnCount
- bPtr
->maxVisibleColumns
;
631 scrollToColumn(bPtr
, newFirst
, True
);
638 double value
= bPtr
->columnCount
- bPtr
->maxVisibleColumns
;
640 floatValue
= WMGetScrollerValue(bPtr
->scroller
);
642 floatValue
= (floatValue
*value
)/value
;
644 newFirst
= rint(floatValue
*(float)(bPtr
->columnCount
- bPtr
->maxVisibleColumns
));
646 if (bPtr
->firstVisibleColumn
!= newFirst
)
647 scrollToColumn(bPtr
, newFirst
, False
);
649 WMSetScrollerParameters(bPtr->scroller, floatValue,
650 bPtr->maxVisibleColumns/(float)bPtr->columnCount);
661 #undef LAST_VISIBLE_COLUMN
666 setupScroller(WMBrowser
*bPtr
)
671 y
= bPtr
->view
->size
.height
- SCROLLER_WIDTH
- 1;
673 sPtr
= WMCreateScroller(bPtr
);
674 WMSetScrollerAction(sPtr
, scrollCallback
, bPtr
);
675 WMMoveWidget(sPtr
, 1, y
);
676 WMResizeWidget(sPtr
, bPtr
->view
->size
.width
-2, SCROLLER_WIDTH
);
678 bPtr
->scroller
= sPtr
;
685 WMSetBrowserAction(WMBrowser
*bPtr
, WMAction
*action
, void *clientData
)
687 bPtr
->action
= action
;
688 bPtr
->clientData
= clientData
;
693 WMSetBrowserDoubleAction(WMBrowser
*bPtr
, WMAction
*action
, void *clientData
)
695 bPtr
->doubleAction
= action
;
696 bPtr
->doubleClientData
= clientData
;
701 WMSetBrowserHasScroller(WMBrowser
*bPtr
, int hasScroller
)
703 bPtr
->flags
.hasScroller
= hasScroller
;
708 WMSetBrowserPath(WMBrowser
*bPtr
, char *path
)
712 char *tmp
, *retPtr
= NULL
;
714 WMListItem
*listItem
;
716 /* WMLoadBrowserColumnZero must be call first */
717 if (!bPtr
->flags
.loaded
) {
721 removeColumn(bPtr
, 1);
723 WMSelectListItem(bPtr
->columns
[0], -1);
724 WMSetListPosition(bPtr
->columns
[0], 0);
728 tmp
= strtok(str
, bPtr
->pathSeparator
);
730 /* select it in the column */
731 item
= WMFindRowOfListItemWithTitle(bPtr
->columns
[i
], tmp
);
733 retPtr
= &path
[(int)(tmp
- str
)];
736 WMSelectListItem(bPtr
->columns
[i
], item
);
737 WMSetListPosition(bPtr
->columns
[i
], item
);
739 listItem
= WMGetListItem(bPtr
->columns
[i
], item
);
740 if (!listItem
|| !listItem
->isBranch
) {
744 /* load next column */
745 WMAddBrowserColumn(bPtr
);
747 loadColumn(bPtr
, i
+1);
749 tmp
= strtok(NULL
, bPtr
->pathSeparator
);
756 for (i
= bPtr
->usedColumnCount
- 1;
757 (i
> -1) && !WMGetListSelectedItem(bPtr
->columns
[i
]);
760 bPtr
->selectedColumn
= i
;
762 if (bPtr
->columnCount
< bPtr
->maxVisibleColumns
) {
763 int i
= bPtr
->maxVisibleColumns
- bPtr
->columnCount
;
764 int curUsedColumnCount
= bPtr
->usedColumnCount
;
765 bPtr
->usedColumnCount
= bPtr
->columnCount
;
767 WMAddBrowserColumn(bPtr
);
769 bPtr
->usedColumnCount
= curUsedColumnCount
;
772 scrollToColumn(bPtr
, bPtr
->columnCount
- bPtr
->maxVisibleColumns
, True
);
779 WMGetBrowserPath(WMBrowser
*bPtr
)
781 return WMGetBrowserPathToColumn(bPtr
, bPtr
->columnCount
);
786 WMGetBrowserPathToColumn(WMBrowser
*bPtr
, int column
)
792 if (column
>= bPtr
->usedColumnCount
)
793 column
= bPtr
->usedColumnCount
-1;
796 return wstrdup(bPtr
->pathSeparator
);
799 /* calculate size of buffer */
801 for (i
= 0; i
<= column
; i
++) {
802 item
= WMGetListSelectedItem(bPtr
->columns
[i
]);
805 size
+= strlen(item
->text
);
809 path
= wmalloc(size
+(column
+1)*strlen(bPtr
->pathSeparator
)+1);
812 for (i
= 0; i
<= column
; i
++) {
813 strcat(path
, bPtr
->pathSeparator
);
814 item
= WMGetListSelectedItem(bPtr
->columns
[i
]);
817 strcat(path
, item
->text
);
825 WMGetBrowserPaths(WMBrowser
*bPtr
)
827 int column
, i
, k
, size
, selNo
;
829 WMListItem
*item
, *lastItem
;
830 WMArray
*paths
, *items
;
832 column
= bPtr
->usedColumnCount
-1;
835 paths
= WMCreateArrayWithDestructor(1, wfree
);
836 WMAddToArray(paths
, wstrdup(bPtr
->pathSeparator
));
840 items
= WMGetListSelectedItems(bPtr
->columns
[column
]);
841 selNo
= WMGetArrayItemCount(items
);
842 paths
= WMCreateArrayWithDestructor(selNo
, wfree
);
845 WMAddToArray(paths
, WMGetBrowserPath(bPtr
));
849 /* calculate size of buffer */
851 for (i
=0; i
<column
; i
++) {
852 item
= WMGetListSelectedItem(bPtr
->columns
[i
]);
855 size
+= strlen(item
->text
);
858 size
+= (column
+1)*strlen(bPtr
->pathSeparator
)+1;
860 for (k
=0; k
<selNo
; k
++) {
862 lastItem
= WMGetFromArray(items
, k
);
863 path
= wmalloc(size
+ (lastItem
!=NULL
? strlen(lastItem
->text
) : 0));
866 for (i
=0; i
<=column
; i
++) {
867 strcat(path
, bPtr
->pathSeparator
);
871 item
= WMGetListSelectedItem(bPtr
->columns
[i
]);
875 strcat(path
, item
->text
);
877 WMAddToArray(paths
, path
);
885 WMBrowserAllowsMultipleSelection(WMBrowser
*bPtr
)
887 return bPtr
->flags
.allowMultipleSelection
;
892 WMBrowserAllowsEmptySelection(WMBrowser
*bPtr
)
894 return bPtr
->flags
.allowEmptySelection
;
899 loadColumn(WMBrowser
*bPtr
, int column
)
901 assert(bPtr
->delegate
);
902 assert(bPtr
->delegate
->createRowsForColumn
);
904 bPtr
->flags
.loadingColumn
= 1;
905 (*bPtr
->delegate
->createRowsForColumn
)(bPtr
->delegate
, bPtr
, column
,
906 bPtr
->columns
[column
]);
907 bPtr
->flags
.loadingColumn
= 0;
909 if (bPtr
->delegate
->titleOfColumn
) {
912 title
= (*bPtr
->delegate
->titleOfColumn
)(bPtr
->delegate
, bPtr
, column
);
914 if (bPtr
->titles
[column
])
915 wfree(bPtr
->titles
[column
]);
917 bPtr
->titles
[column
] = wstrdup(title
);
919 if (COLUMN_IS_VISIBLE(bPtr
, column
) && bPtr
->flags
.isTitled
) {
920 drawTitleOfColumn(bPtr
, column
);
927 paintBrowser(WMBrowser
*bPtr
)
931 if (!bPtr
->view
->flags
.mapped
)
934 W_DrawRelief(bPtr
->view
->screen
, bPtr
->view
->window
, 0,
935 bPtr
->view
->size
.height
-SCROLLER_WIDTH
-2,
936 bPtr
->view
->size
.width
, 22, WRSunken
);
938 if (bPtr
->flags
.isTitled
) {
939 for (i
=0; i
<bPtr
->maxVisibleColumns
; i
++) {
940 drawTitleOfColumn(bPtr
, i
+bPtr
->firstVisibleColumn
);
947 handleEvents(XEvent
*event
, void *data
)
949 WMBrowser
*bPtr
= (WMBrowser
*)data
;
951 CHECK_CLASS(data
, WC_Browser
);
954 switch (event
->type
) {
960 destroyBrowser(bPtr
);
969 scrollToColumn(WMBrowser
*bPtr
, int column
, Bool updateScroller
)
976 if (column
!= bPtr
->firstVisibleColumn
) {
983 if (notify
&& bPtr
->delegate
&& bPtr
->delegate
->willScroll
) {
984 (*bPtr
->delegate
->willScroll
)(bPtr
->delegate
, bPtr
);
988 bPtr
->firstVisibleColumn
= column
;
989 for (i
= 0; i
< bPtr
->columnCount
; i
++) {
990 if (COLUMN_IS_VISIBLE(bPtr
, i
)) {
991 WMMoveWidget(bPtr
->columns
[i
], x
,
992 WMWidgetView(bPtr
->columns
[i
])->pos
.y
);
993 if (!WMWidgetView(bPtr
->columns
[i
])->flags
.realized
)
994 WMRealizeWidget(bPtr
->columns
[i
]);
995 WMMapWidget(bPtr
->columns
[i
]);
996 x
+= bPtr
->columnSize
.width
+ COLUMN_SPACING
;
998 WMUnmapWidget(bPtr
->columns
[i
]);
1002 /* update the scroller */
1003 if (updateScroller
) {
1004 if (bPtr
->columnCount
> bPtr
->maxVisibleColumns
) {
1005 float value
, proportion
;
1007 value
= bPtr
->firstVisibleColumn
1008 /(float)(bPtr
->columnCount
-bPtr
->maxVisibleColumns
);
1009 proportion
= bPtr
->maxVisibleColumns
/(float)bPtr
->columnCount
;
1010 WMSetScrollerParameters(bPtr
->scroller
, value
, proportion
);
1012 WMSetScrollerParameters(bPtr
->scroller
, 0, 1);
1016 if (bPtr
->view
->flags
.mapped
)
1019 if (notify
&& bPtr
->delegate
&& bPtr
->delegate
->didScroll
) {
1020 (*bPtr
->delegate
->didScroll
)(bPtr
->delegate
, bPtr
);
1026 listCallback(void *self
, void *clientData
)
1028 WMBrowser
*bPtr
= (WMBrowser
*)clientData
;
1029 WMList
*lPtr
= (WMList
*)self
;
1032 static WMListItem
*oldItem
= NULL
;
1033 static int oldSelNo
= 0;
1035 item
= WMGetListSelectedItem(lPtr
);
1036 selNo
= WMGetArrayItemCount(WMGetListSelectedItems(lPtr
));
1038 if (oldItem
==NULL
|| oldItem
!=item
|| oldSelNo
!=selNo
) {
1039 for (i
=0; i
<bPtr
->columnCount
; i
++) {
1040 if (lPtr
== bPtr
->columns
[i
])
1043 assert(i
<bPtr
->columnCount
);
1045 bPtr
->selectedColumn
= i
;
1047 /* columns at right must be cleared */
1048 removeColumn(bPtr
, i
+1);
1049 /* open directory */
1050 if (item
&& item
->isBranch
&& selNo
==1) {
1051 WMAddBrowserColumn(bPtr
);
1053 if (bPtr
->usedColumnCount
< bPtr
->maxVisibleColumns
)
1056 i
= bPtr
->usedColumnCount
-bPtr
->maxVisibleColumns
;
1057 scrollToColumn(bPtr
, i
, True
);
1058 if (item
&& item
->isBranch
&& selNo
==1) {
1059 loadColumn(bPtr
, bPtr
->usedColumnCount
-1);
1063 /* call callback for click */
1065 (*bPtr
->action
)(bPtr
, bPtr
->clientData
);
1073 listDoubleCallback(void *self
, void *clientData
)
1075 WMBrowser
*bPtr
= (WMBrowser
*)clientData
;
1076 WMList
*lPtr
= (WMList
*)self
;
1079 item
= WMGetListSelectedItem(lPtr
);
1083 /* call callback for double click */
1084 if (bPtr
->doubleAction
)
1085 (*bPtr
->doubleAction
)(bPtr
, bPtr
->doubleClientData
);
1090 WMLoadBrowserColumnZero(WMBrowser
*bPtr
)
1092 if (!bPtr
->flags
.loaded
) {
1093 /* create column 0 */
1094 WMAddBrowserColumn(bPtr
);
1096 loadColumn(bPtr
, 0);
1098 /* make column 0 visible */
1099 scrollToColumn(bPtr
, 0, True
);
1101 bPtr
->flags
.loaded
= 1;
1107 WMRemoveBrowserItem(WMBrowser
*bPtr
, int column
, int row
)
1111 if (column
< 0 || column
>= bPtr
->usedColumnCount
)
1114 list
= WMGetBrowserListInColumn(bPtr
, column
);
1116 if (row
< 0 || row
>= WMGetListNumberOfRows(list
))
1119 removeColumn(bPtr
, column
+1);
1120 if (bPtr
->usedColumnCount
< bPtr
->maxVisibleColumns
)
1121 scrollToColumn(bPtr
, 0, True
);
1123 scrollToColumn(bPtr
, bPtr
->usedColumnCount
-bPtr
->maxVisibleColumns
,
1126 WMRemoveListItem(list
, row
);
1131 listSelectionObserver(void *observerData
, WMNotification
*notification
)
1133 WMBrowser
*bPtr
= (WMBrowser
*)observerData
;
1135 WMList
*lPtr
= (WMList
*)WMGetNotificationObject(notification
);
1137 for (column
= 0; column
< bPtr
->usedColumnCount
; column
++)
1138 if (bPtr
->columns
[column
] == lPtr
)
1141 /* this can happen when a list is being cleared with WMClearList
1142 * after the column was removed */
1143 if (column
>= bPtr
->usedColumnCount
) {
1147 if (WMGetArrayItemCount(WMGetListSelectedItems(lPtr
)) == 0)
1150 bPtr
->selectedColumn
= column
;
1155 WMAddBrowserColumn(WMBrowser
*bPtr
)
1164 if (bPtr
->usedColumnCount
< bPtr
->columnCount
) {
1165 return bPtr
->usedColumnCount
++;
1168 bPtr
->usedColumnCount
++;
1170 if (bPtr
->flags
.isTitled
) {
1171 colY
= TITLE_SPACING
+ bPtr
->titleHeight
;
1176 index
= bPtr
->columnCount
;
1177 bPtr
->columnCount
++;
1178 clist
= wmalloc(sizeof(WMList
*)*bPtr
->columnCount
);
1179 tlist
= wmalloc(sizeof(char*)*bPtr
->columnCount
);
1180 memcpy(clist
, bPtr
->columns
, sizeof(WMList
*)*(bPtr
->columnCount
-1));
1181 memcpy(tlist
, bPtr
->titles
, sizeof(char*)*(bPtr
->columnCount
-1));
1183 wfree(bPtr
->columns
);
1185 wfree(bPtr
->titles
);
1186 bPtr
->columns
= clist
;
1187 bPtr
->titles
= tlist
;
1189 bPtr
->titles
[index
] = NULL
;
1191 list
= WMCreateList(bPtr
);
1192 WMSetListAllowMultipleSelection(list
, bPtr
->flags
.allowMultipleSelection
);
1193 WMSetListAllowEmptySelection(list
, bPtr
->flags
.allowEmptySelection
);
1194 WMSetListAction(list
, listCallback
, bPtr
);
1195 WMSetListDoubleAction(list
, listDoubleCallback
, bPtr
);
1196 WMSetListUserDrawProc(list
, paintItem
);
1197 WMAddNotificationObserver(listSelectionObserver
, bPtr
,
1198 WMListSelectionDidChangeNotification
, list
);
1200 bPtr
->columns
[index
] = list
;
1202 WMResizeWidget(list
, bPtr
->columnSize
.width
, bPtr
->columnSize
.height
);
1203 WMMoveWidget(list
, (bPtr
->columnSize
.width
+COLUMN_SPACING
)*index
, colY
);
1204 if (COLUMN_IS_VISIBLE(bPtr
, index
))
1207 /* update the scroller */
1208 if (bPtr
->columnCount
> bPtr
->maxVisibleColumns
) {
1209 float value
, proportion
;
1211 value
= bPtr
->firstVisibleColumn
1212 /(float)(bPtr
->columnCount
-bPtr
->maxVisibleColumns
);
1213 proportion
= bPtr
->maxVisibleColumns
/(float)bPtr
->columnCount
;
1214 WMSetScrollerParameters(bPtr
->scroller
, value
, proportion
);
1223 destroyBrowser(WMBrowser
*bPtr
)
1227 for (i
= 0; i
< bPtr
->columnCount
; i
++) {
1228 if (bPtr
->titles
[i
])
1229 wfree(bPtr
->titles
[i
]);
1231 wfree(bPtr
->titles
);
1233 wfree(bPtr
->pathSeparator
);
1235 WMRemoveNotificationObserver(bPtr
);
1242 createTruncatedString(WMFont
*font
, char *text
, int *textLen
, int width
)
1244 int dLen
= WMWidthOfString(font
, ".", 1);
1245 char *textBuf
= (char*)wmalloc((*textLen
)+4);
1247 if (width
>= 3*dLen
) {
1248 int dddLen
= 3*dLen
;
1249 int tmpTextLen
= *textLen
;
1251 strcpy(textBuf
, text
);
1253 && (WMWidthOfString(font
, textBuf
, tmpTextLen
)+dddLen
> width
))
1255 strcpy(textBuf
+tmpTextLen
, "...");
1256 *textLen
= tmpTextLen
+3;
1257 } else if (width
>= 2*dLen
) {
1258 strcpy(textBuf
, "..");
1260 } else if (width
>= dLen
) {
1261 strcpy(textBuf
, ".");