[elistbox] Add method to calculate max list-item width for use in Mes…

…sageBox Author: @DimitarCC
BlackHole · Oct 11, 2023 · f992732 · f992732
1 parent ac84823
commit f992732
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Showing 4 changed files with 46 additions and 3 deletions.
diff --git a/lib/gui/elistbox.h b/lib/gui/elistbox.h
@@ -53,6 +53,7 @@ class iListboxContent: public iObject
 	virtual int getItemHeight()=0;
 	virtual int getItemWidth() { return -1; }
 	virtual int getOrientation() { return 1; }
+	virtual int getMaxItemTextWidth() { return 1; }
 
 	eListbox *m_listbox;
 #endif
@@ -184,6 +185,7 @@ class eListbox: public eWidget
 
 	int getScrollbarWidth() { return m_scrollbar_width; }
 	int getScrollbarHeight() { return m_scrollbar_height; }
+	int getMaxItemTextWidth() { return m_content->getMaxItemTextWidth(); }
 
 #ifndef SWIG
 	struct eListboxStyle *getLocalStyle(void);

diff --git a/lib/gui/elistboxcontent.cpp b/lib/gui/elistboxcontent.cpp
@@ -52,7 +52,7 @@ int iListboxContent::currentCursorSelectable()
 DEFINE_REF(eListboxPythonStringContent);
 
 eListboxPythonStringContent::eListboxPythonStringContent()
-	:m_cursor(0), m_saved_cursor(0), m_itemheight(25), m_itemwidth(25), m_orientation(1)
+	:m_cursor(0), m_saved_cursor(0), m_itemheight(25), m_itemwidth(25), m_max_text_width(0), m_orientation(1)
 {
 }
 
@@ -138,6 +138,43 @@ void eListboxPythonStringContent::setSize(const eSize &size)
 	m_itemsize = size;
 }
 
+int eListboxPythonStringContent::getMaxItemTextWidth()
+{
+	ePtr<gFont> fnt;
+	eListboxStyle *local_style = 0;
+	int m_text_offset = 1;
+	if (m_listbox)
+		local_style = m_listbox->getLocalStyle();
+	if (local_style) {
+		fnt = local_style->m_font;
+		m_text_offset = local_style->m_text_offset.x();
+	}
+	if (!fnt) fnt = new gFont("Regular", 20);
+
+	for (int i = 0; i < size(); i++)
+	{
+		ePyObject item = PyList_GET_ITEM(m_list, i);
+		if (PyTuple_Check(item))
+		{
+			item = PyTuple_GET_ITEM(item, 0);
+		}
+		if (item != Py_None) {
+			const char *string = PyUnicode_Check(item) ? PyUnicode_AsUTF8(item) : "<not-a-string>";
+			eRect textRect = eRect(0,0, 8000, 100);
+
+			ePtr<eTextPara> para = new eTextPara(textRect);
+			para->setFont(fnt);
+			para->renderString(string);
+			int textWidth = para->getBoundBox().width();
+			if (textWidth > m_max_text_width) {
+				m_max_text_width = textWidth;
+			}
+		}
+	}
+
+	return m_max_text_width + (m_text_offset*2);
+}
+
 void eListboxPythonStringContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
 {
 	ePtr<gFont> fnt;
@@ -275,8 +312,7 @@ void eListboxPythonStringContent::paint(gPainter &painter, eWindowStyle &style,
 					flags |= gPainter::RT_HALIGN_BLOCK;
 			}
 
-			painter.renderText(eRect(text_offset, m_itemsize),
-			 string, flags, border_color, border_size);
+			painter.renderText(eRect(text_offset, m_itemsize), string, flags, border_color, border_size);
 		}
 	}
 

diff --git a/lib/gui/elistboxcontent.h b/lib/gui/elistboxcontent.h
@@ -20,6 +20,7 @@ class eListboxPythonStringContent: public virtual iListboxContent
 	void invalidateEntry(int index);
 	void invalidate();
 	eSize getItemSize() { return m_itemsize; }
+	int getMaxItemTextWidth();
 #ifndef SWIG
 protected:
 	void cursorHome();
@@ -53,6 +54,7 @@ class eListboxPythonStringContent: public virtual iListboxContent
 	ePtr<gFont> m_font;
 	int m_itemheight;
 	int m_itemwidth;
+	int m_max_text_width;
 	int m_orientation;
 #endif
 };

diff --git a/lib/python/Screens/MessageBox.py b/lib/python/Screens/MessageBox.py
@@ -291,3 +291,6 @@ def move(self, direction):
 
 	def __repr__(self):
 		return "%s(%s)" % (str(type(self)), self.text)
+
+	def getListWidth(self):
+		return self["list"].instance.getMaxItemTextWidth()