Initial revision

2026-02-14 04:45:57 +01:00 · 1998-09-29 22:36:29 +00:00
commit 9d2e6ef9f1
527 changed files with 138651 additions and 0 deletions
--- a/WINGs/wlabel.c
+++ b/WINGs/wlabel.c
@@ -0,0 +1,243 @@
+
+
+
+
+#include "WINGsP.h"
+
+
+
+typedef struct W_Label {
+    W_Class widgetClass;
+    W_View *view;
+	
+    char *caption;
+
+    WMColor *textColor;
+    WMFont *font;		       /* if NULL, use default */
+    
+    W_Pixmap *image;
+
+    struct {
+	WMReliefType relief:3;
+	WMImagePosition imagePosition:4;
+	WMAlignment alignment:2;
+	
+	unsigned int noWrap:1;
+
+	unsigned int redrawPending:1;
+    } flags;
+} Label;
+
+
+
+W_ViewProcedureTable _LabelViewProcedures = {
+    NULL,
+	NULL,
+	NULL
+};
+
+
+#define DEFAULT_WIDTH		60
+#define DEFAULT_HEIGHT		14
+#define DEFAULT_ALIGNMENT	WALeft
+#define DEFAULT_RELIEF		WRFlat
+#define DEFAULT_IMAGE_POSITION	WIPNoImage
+
+
+static void destroyLabel(Label *lPtr);
+static void paintLabel(Label *lPtr);
+
+
+static void handleEvents(XEvent *event, void *data);
+
+
+WMLabel*
+WMCreateLabel(WMWidget *parent)
+{
+    Label *lPtr;
+    
+    lPtr = wmalloc(sizeof(Label));
+    memset(lPtr, 0, sizeof(Label));
+
+    lPtr->widgetClass = WC_Label;
+    
+    lPtr->view = W_CreateView(W_VIEW(parent));
+    if (!lPtr->view) {
+	free(lPtr);
+	return NULL;
+    }
+    lPtr->view->self = lPtr;
+    
+    lPtr->textColor = WMRetainColor(lPtr->view->screen->black);
+    
+    WMCreateEventHandler(lPtr->view, ExposureMask|StructureNotifyMask,
+			 handleEvents, lPtr);
+
+    W_ResizeView(lPtr->view, DEFAULT_WIDTH, DEFAULT_HEIGHT);
+    lPtr->flags.alignment = DEFAULT_ALIGNMENT;
+    lPtr->flags.relief = DEFAULT_RELIEF;
+    lPtr->flags.imagePosition = DEFAULT_IMAGE_POSITION;
+
+    return lPtr;
+}
+
+
+void
+WMSetLabelImage(WMLabel *lPtr, WMPixmap *image)
+{
+    if (lPtr->image!=NULL) 
+	WMReleasePixmap(lPtr->image);
+    
+    if (image)
+	lPtr->image = WMRetainPixmap(image);
+    else
+	lPtr->image = NULL;
+
+    if (lPtr->view->flags.realized) {
+	paintLabel(lPtr);
+    }
+}
+
+
+void
+WMSetLabelImagePosition(WMLabel *lPtr, WMImagePosition position)
+{
+    lPtr->flags.imagePosition = position;
+    if (lPtr->view->flags.realized) {
+	paintLabel(lPtr);
+    }
+}
+
+	
+void
+WMSetLabelTextAlignment(WMLabel *lPtr, WMAlignment alignment)
+{
+    lPtr->flags.alignment = alignment;
+    if (lPtr->view->flags.realized) {
+	paintLabel(lPtr);
+    }
+}
+
+
+void
+WMSetLabelRelief(WMLabel *lPtr, WMReliefType relief)
+{
+    lPtr->flags.relief = relief;
+    if (lPtr->view->flags.realized) {
+	paintLabel(lPtr);
+    }
+}
+
+
+void
+WMSetLabelText(WMLabel *lPtr, char *text)
+{
+    if (lPtr->caption)
+	free(lPtr->caption);
+    
+    if (text!=NULL) {
+	lPtr->caption = wstrdup(text);
+    } else {
+	lPtr->caption = NULL;
+    }
+    if (lPtr->view->flags.realized) {
+	paintLabel(lPtr);
+    }
+}
+
+
+void
+WMSetLabelFont(WMLabel *lPtr, WMFont *font)
+{	
+    if (lPtr->font!=NULL)
+	WMReleaseFont(lPtr->font);
+    if (font)
+	lPtr->font = WMRetainFont(font);
+    else
+	lPtr->font = NULL;
+
+    if (lPtr->view->flags.realized) {
+	paintLabel(lPtr);
+    }
+}
+
+
+void
+WMSetLabelTextColor(WMLabel *lPtr, WMColor *color)
+{
+    if (lPtr->textColor)
+	WMReleaseColor(lPtr->textColor);
+    lPtr->textColor = WMRetainColor(color);
+}
+
+
+void
+WMSetLabelWraps(WMLabel *lPtr, Bool flag)
+{
+    if (lPtr->flags.noWrap != !flag) {
+	lPtr->flags.noWrap = !flag;
+	if (lPtr->view->flags.realized)
+	    paintLabel(lPtr);
+    }
+}
+
+
+static void
+paintLabel(Label *lPtr)
+{
+    W_Screen *scrPtr = lPtr->view->screen;
+    GC gc;
+    
+    if (lPtr->textColor)
+	gc = W_GC(lPtr->textColor);
+    else
+	gc = W_GC(scrPtr->black);
+
+    W_PaintTextAndImage(lPtr->view, !lPtr->flags.noWrap, gc,
+			(lPtr->font!=NULL ? lPtr->font : scrPtr->normalFont),
+			lPtr->flags.relief, lPtr->caption,
+			lPtr->flags.alignment, lPtr->image, 
+			lPtr->flags.imagePosition, NULL, 0);
+}
+
+
+
+static void
+handleEvents(XEvent *event, void *data)
+{
+    Label *lPtr = (Label*)data;
+
+    CHECK_CLASS(data, WC_Label);
+
+
+    switch (event->type) {
+     case Expose:
+	if (event->xexpose.count!=0)
+	    break;
+	paintLabel(lPtr);
+	break;
+	
+     case DestroyNotify:
+	destroyLabel(lPtr);
+	break;
+    }
+}
+
+
+static void
+destroyLabel(Label *lPtr)
+{
+    if (lPtr->textColor)
+	WMReleaseColor(lPtr->textColor);
+    
+    if (lPtr->caption)
+	free(lPtr->caption);
+
+    if (lPtr->font)
+	WMReleaseFont(lPtr->font);
+
+    if (lPtr->image)
+	WMReleasePixmap(lPtr->image);
+
+    free(lPtr);
+}