Merge branch 'GWIN'

1 files changed, 118 insertions, 0 deletions

diff --git a/src/gwin/label.c b/src/gwin/label.c
new file mode 100644
index 00000000..71ed18eb
--- /dev/null
+++ b/src/gwin/label.c
@@ -0,0 +1,118 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ *              http://chibios-gfx.com/license.html
+ */
+
+/**
+ * @file	include/gwin/label.h
+ * @brief	GWIN label widget header file.
+ *
+ * @defgroup Label Label
+ * @ingroup GWIN
+ *
+ * @{
+ */
+
+#include "gfx.h"
+
+#if GFX_USE_GWIN && GWIN_NEED_LABEL
+
+#include "gwin/class_gwin.h"
+
+#define GLABEL_FLG_WAUTO		(GWIN_FIRST_CONTROL_FLAG<<0)
+#define GLABEL_FLG_HAUTO		(GWIN_FIRST_CONTROL_FLAG<<1)
+
+// Simple: single line with no wrapping
+static coord_t getwidth(const char *text, font_t font, coord_t maxwidth) {
+	(void) maxwidth;
+	return gdispGetStringWidth(text, font)+2;		// Allow one pixel of padding on each side
+}
+
+// Simple: single line with no wrapping
+static coord_t getheight(const char *text, font_t font, coord_t maxwidth) {
+	(void) text;
+	(void) maxwidth;
+
+	return gdispGetFontMetric(font, fontHeight);
+}
+
+static void gwinLabelDefaultDraw(GWidgetObject *gw, void *param) {
+	coord_t				w, h;
+	(void)				param;
+
+	w = (gw->g.flags & GLABEL_FLG_WAUTO) ? getwidth(gw->text, gw->g.font, gdispGetWidth() - gw->g.x) : gw->g.width;
+	h = (gw->g.flags & GLABEL_FLG_HAUTO) ? getheight(gw->text, gw->g.font, gdispGetWidth() - gw->g.x) : gw->g.height;
+
+	if (gw->g.width != w || gw->g.height != h) {
+		gwinResize(&gw->g, w, h);
+		return;
+	}
+
+	gdispFillStringBox(gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->text, gw->g.font,
+			(gw->g.flags & GWIN_FLG_ENABLED) ? gw->pstyle->enabled.text : gw->pstyle->disabled.text, gw->pstyle->background,
+			justifyLeft);
+}
+
+static const gwidgetVMT labelVMT = {
+	{
+		"Label",				// The class name
+		sizeof(GLabelObject),	// The object size
+		_gwidgetDestroy,		// The destroy routine
+		_gwidgetRedraw, 		// The redraw routine
+		0,						// The after-clear routine
+	},
+	gwinLabelDefaultDraw,		// default drawing routine
+	#if GINPUT_NEED_MOUSE
+		{
+			0,						// Process mose down events (NOT USED)
+			0,						// Process mouse up events (NOT USED)
+			0,						// Process mouse move events (NOT USED)
+		},
+	#endif
+	#if GINPUT_NEED_TOGGLE
+		{
+			0,						// No toggle role
+			0,						// Assign Toggles (NOT USED)
+			0,						// Get Toggles (NOT USED)
+			0,						// Process toggle off event (NOT USED)
+			0,						// Process toggle on event (NOT USED)
+		},
+	#endif
+	#if GINPUT_NEED_DIAL
+		{
+			0,						// No dial roles
+			0,						// Assign Dials (NOT USED)
+			0, 						// Get Dials (NOT USED)
+			0,						// Procees dial move events (NOT USED)
+		},
+	#endif
+};
+
+GHandle gwinLabelCreate(GLabelObject *widget, GWidgetInit *pInit) {
+	uint16_t flags = 0;
+
+	// auto assign width
+	if (pInit->g.width <= 0) {
+		flags |= GLABEL_FLG_WAUTO;
+		pInit->g.width = getwidth(pInit->text, gwinGetDefaultFont(), gdispGetWidth() - pInit->g.x);
+	}
+ 
+	// auto assign height
+	if (pInit->g.height <= 0) {
+		flags |= GLABEL_FLG_HAUTO;
+		pInit->g.height = getheight(pInit->text, gwinGetDefaultFont(), gdispGetWidth() - pInit->g.x);
+	}
+
+	if (!(widget = (GLabelObject *)_gwidgetCreate(&widget->w, pInit, &labelVMT)))
+		return 0;
+
+	widget->w.g.flags |= flags;
+
+	gwinSetVisible(&widget->w.g, pInit->g.show);
+	return (GHandle)widget;
+}
+
+#endif // GFX_USE_GWIN && GFX_NEED_LABEL
+