WINGs/Extras/tabledelegates.c

   1
   2
   3 #include <WINGs.h>
   4
   5 #include "wtableview.h"
   6
   7
   8 typedef struct {
   9     WMTextField *widget;
  10     WMTableView *table;
  11     WMFont *font;
  12     GC gc;
  13     GC selGc;
  14     GC selTextGc;
  15 } StringEditorData;
  16
  17
  18 static void stringDraw(WMScreen *scr, Drawable d, GC gc,
  19                        GC sgc, GC stgc, WMFont *font, void *data,
  20                        WMRect rect, Bool selected)
  21 {
  22     int x, y;
  23     XRectangle rects[1];
  24     Display *dpy = WMScreenDisplay(scr);
  25
  26     x = rect.pos.x + 5;
  27     y = rect.pos.y + (rect.size.height - WMFontHeight(font))/2;
  28
  29     rects[0].x = rect.pos.x+1;
  30     rects[0].y = rect.pos.y+1;
  31     rects[0].width = rect.size.width-1;
  32     rects[0].height = rect.size.height-1;
  33     XSetClipRectangles(dpy, gc, 0, 0, rects, 1, YXSorted);
  34
  35     if (!selected) {
  36         XClearArea(dpy, d, rects[0].x, rects[0].y,
  37                    rects[0].width, rects[0].height,
  38                    False);
  39
  40         WMDrawString(scr, d, gc, font, x, y,
  41                      data, strlen(data));
  42     } else {
  43         XFillRectangles(dpy, d, sgc, rects, 1);
  44
  45         WMDrawString(scr, d, stgc, font, x, y,
  46                      data, strlen(data));
  47     }
  48
  49     XSetClipMask(dpy, gc, None);
  50 }
  51
  52
  53
  54
  55 static void cellPainter(WMTableColumnDelegate *self, WMTableColumn *column,
  56                         int row)
  57 {
  58     StringEditorData *strdata = (StringEditorData*)self->data;
  59     WMTableView *table = WMGetTableColumnTableView(column);
  60
  61     stringDraw(WMWidgetScreen(table),
  62                WMViewXID(WMGetTableViewDocumentView(table)),
  63                strdata->gc, strdata->selGc, strdata->selTextGc, strdata->font,
  64                WMTableViewDataForCell(table, column, row),
  65                WMTableViewRectForCell(table, column, row),
  66                False);
  67 }
  68
  69
  70 static void selectedCellPainter(WMTableColumnDelegate *self,
  71                                 WMTableColumn *column, int row)
  72 {
  73     StringEditorData *strdata = (StringEditorData*)self->data;
  74     WMTableView *table = WMGetTableColumnTableView(column);
  75
  76     stringDraw(WMWidgetScreen(table),
  77                WMViewXID(WMGetTableViewDocumentView(table)),
  78                strdata->gc, strdata->selGc, strdata->selTextGc, strdata->font,
  79                WMTableViewDataForCell(table, column, row),
  80                WMTableViewRectForCell(table, column, row),
  81                True);
  82 }
  83
  84
  85 static void beginCellEdit(WMTableColumnDelegate *self,
  86                           WMTableColumn *column, int row)
  87 {
  88     StringEditorData *strdata = (StringEditorData*)self->data;
  89     WMRect rect = WMTableViewRectForCell(strdata->table, column, row);
  90     void *data = WMTableViewDataForCell(strdata->table, column, row);
  91
  92     WMSetTextFieldText(strdata->widget, (char*)data);
  93     WMMoveWidget(strdata->widget, rect.pos.x, rect.pos.y);
  94     WMResizeWidget(strdata->widget, rect.size.width+1, rect.size.height+1);
  95
  96     WMMapWidget(strdata->widget);
  97 }
  98
  99
 100
 101 WMTableColumnDelegate *WTCreateStringDelegate(WMTableView *parent)
 102 {
 103     WMTableColumnDelegate *delegate = wmalloc(sizeof(WMTableColumnDelegate));
 104     WMScreen *scr = WMWidgetScreen(parent);
 105     StringEditorData *data = wmalloc(sizeof(StringEditorData));
 106
 107     data->widget = WMCreateTextField(parent);
 108     W_ReparentView(WMWidgetView(data->widget),
 109                    WMGetTableViewDocumentView(parent),
 110                    0, 0);
 111     data->table = parent;
 112     data->font = WMSystemFontOfSize(scr, 12);
 113     data->selGc = WMColorGC(WMDarkGrayColor(scr));
 114     data->selTextGc = WMColorGC(WMWhiteColor(scr));
 115     data->gc = WMColorGC(WMBlackColor(scr));
 116
 117     delegate->data = data;
 118     delegate->drawCell = cellPainter;
 119     delegate->drawSelectedCell = selectedCellPainter;
 120     delegate->beginCellEdit = beginCellEdit;
 121     delegate->endCellEdit = NULL;
 122
 123     return delegate;
 124 }
 125
 126
 127