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