src/geomview.c

   1
   2
   3
   4 #include <WINGs/WINGsP.h>
   5
   6
   7
   8 typedef struct W_GeometryView {
   9     W_Class widgetClass;
  10     WMView *view;
  11
  12     GC gc;
  13     WMFont *font;
  14
  15     WMSize textSize;
  16
  17     union {
  18         struct {
  19             int x, y;
  20         } pos;
  21         struct {
  22             unsigned width, height;
  23         } size;
  24     } data;
  25
  26     unsigned showPosition:1;
  27 } WGeometryView;
  28
  29
  30
  31 static void handleEvents(XEvent *event, void *clientData);
  32 static void paint(WGeometryView *gview);
  33
  34
  35 WGeometryView*
  36 WCreateGeometryView(WMScreen *scr)
  37 {
  38     WGeometryView *gview;
  39     char buffer[64];
  40     static W_Class widgetClass = 0;
  41
  42     if (!widgetClass) {
  43         widgetClass = W_RegisterUserWidget();
  44     }
  45
  46     gview = malloc(sizeof(WGeometryView));
  47     if (!gview) {
  48         return NULL;
  49     }
  50     memset(gview, 0, sizeof(WGeometryView));
  51
  52     gview->widgetClass = widgetClass;
  53
  54     gview->view = W_CreateTopView(scr);
  55     if (!gview->view) {
  56         wfree(gview);
  57
  58         return NULL;
  59     }
  60     gview->view->self = gview;
  61
  62     gview->font = WMSystemFontOfSize(scr, 12);
  63     if (!gview->font) {
  64         W_DestroyView(gview->view);
  65         wfree(gview);
  66
  67         return NULL;
  68     }
  69
  70     {
  71         WMColor *black = WMBlackColor(scr);
  72         WMColor *gray = WMGrayColor(scr);
  73         XGCValues gcv;
  74
  75         gcv.foreground = WMColorPixel(black);
  76         gcv.background = WMColorPixel(gray);
  77
  78         gview->gc = XCreateGC(WMScreenDisplay(scr), W_DRAWABLE(scr),
  79                               GCForeground|GCBackground, &gcv);
  80
  81         WMReleaseColor(black);
  82         WMReleaseColor(gray);
  83     }
  84
  85     WMCreateEventHandler(gview->view, ExposureMask, handleEvents, gview);
  86
  87     snprintf(buffer, sizeof(buffer), "%+05i,  %+05i", 0, 0);
  88
  89     gview->textSize.width = WMWidthOfString(gview->font, buffer,
  90                                             strlen(buffer));
  91     gview->textSize.height = WMFontHeight(gview->font);
  92
  93     W_ResizeView(gview->view, gview->textSize.width+8,
  94                  gview->textSize.height+6);
  95
  96     return gview;
  97 }
  98
  99
 100 void
 101 WSetGeometryViewShownPosition(WGeometryView *gview, int x, int y)
 102 {
 103     gview->showPosition = 1;
 104     gview->data.pos.x = x;
 105     gview->data.pos.y = y;
 106
 107     paint(gview);
 108 }
 109
 110
 111 void
 112 WSetGeometryViewShownSize(WGeometryView *gview,
 113                           unsigned width, unsigned height)
 114 {
 115     gview->showPosition = 0;
 116     gview->data.size.width = width;
 117     gview->data.size.height = height;
 118
 119     paint(gview);
 120 }
 121
 122
 123
 124 static void
 125 paint(WGeometryView *gview)
 126 {
 127     char buffer[64];
 128
 129     if (gview->showPosition) {
 130         snprintf(buffer, sizeof(buffer), "%+5i , %+5i    ",
 131                  gview->data.pos.x, gview->data.pos.y);
 132     } else {
 133         snprintf(buffer, sizeof(buffer), "%+5i x %+5i    ",
 134                  gview->data.size.width, gview->data.size.height);
 135     }
 136
 137     WMDrawImageString(W_VIEW_SCREEN(gview->view),
 138                       W_VIEW_DRAWABLE(gview->view),
 139                       gview->gc, gview->font,
 140                       (W_VIEW_WIDTH(gview->view)-gview->textSize.width)/2,
 141                       (W_VIEW_HEIGHT(gview->view)-gview->textSize.height)/2,
 142                       buffer, strlen(buffer));
 143
 144     W_DrawRelief(W_VIEW_SCREEN(gview->view), W_VIEW_DRAWABLE(gview->view),
 145                  0, 0, W_VIEW_WIDTH(gview->view), W_VIEW_HEIGHT(gview->view),
 146                  WRRaised);
 147 }
 148
 149
 150
 151 static void
 152 handleEvents(XEvent *event, void *clientData)
 153 {
 154     WGeometryView *gview = (WGeometryView*)clientData;
 155
 156     switch (event->type) {
 157      case Expose:
 158         paint(gview);
 159         break;
 160
 161     }
 162 }
 163