From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 28 Apr 2008 13:51:58 +0000 (+0000)
Subject: Add Table widget
X-Git-Tag: 0.9~9
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgltk.git;a=commitdiff_plain;h=f34c8d617cbe8ae426e7a1e280dfa0aaf5d11a6d

Add Table widget
Bugfixes in List
---

diff --git a/source/list.cpp b/source/list.cpp
index 722e296..8c0d789 100644
--- a/source/list.cpp
+++ b/source/list.cpp
@@ -71,6 +71,8 @@ void List::clear()
 {
 	items.clear();
 	sel_index=-1;
+
+	recalculate_parameters();
 }
 
 void List::set_selected_index(int i)
@@ -261,7 +263,8 @@ void List::recalculate_parameters()
 
 void List::slider_value_changed(double value)
 {
-	first=items.size()-n_visible-static_cast<unsigned>(value);
+	if(items.size()>n_visible)
+		first=items.size()-n_visible-static_cast<unsigned>(value);
 }
 
 
diff --git a/source/panel.cpp b/source/panel.cpp
index f17439a..4d0d5d1 100644
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -15,6 +15,7 @@ Distributed under the LGPL
 #include "list.h"
 #include "panel.h"
 #include "part.h"
+#include "table.h"
 #include "toggle.h"
 #include "vslider.h"
 
@@ -233,6 +234,7 @@ Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
 	add("label",     &Loader::child<Label>);
 	add("list",      &Loader::child<List>);
 	add("panel",     &Loader::panel);
+	add("table",     &Loader::child<Table>);
 	add("toggle",    &Loader::child<Toggle>);
 	add("vslider",   &Loader::child<VSlider>);
 }
diff --git a/source/table.cpp b/source/table.cpp
new file mode 100644
index 0000000..7f334a0
--- /dev/null
+++ b/source/table.cpp
@@ -0,0 +1,145 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2008  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#include <msp/gl/matrix.h>
+#include <msp/gl/transform.h>
+#include "part.h"
+#include "style.h"
+#include "table.h"
+
+using namespace std;
+
+namespace Msp {
+namespace GLtk {
+
+Table::Table(const Resources &r):
+	Widget(r),
+	rows(1),
+	columns(1),
+	data(1),
+	col_w(1)
+{
+	update_style();
+}
+
+void Table::set_rows(unsigned r)
+{
+	rows=r;
+	data.resize(rows*columns);
+}
+
+void Table::set_columns(unsigned c)
+{
+	vector<string> new_data(rows*c);
+	for(unsigned i=0; i<rows; ++i)
+		for(unsigned j=0; j<min(c, columns); ++j)
+			new_data[i*c+j].swap(data[i*columns+j]);
+	data.swap(new_data);
+	columns=c;
+
+	col_w.resize(columns);
+}
+
+void Table::set_column_width(unsigned c, unsigned w)
+{
+	if(c>=columns)
+		throw InvalidParameterValue("Column index out of bounds");
+	col_w[c]=w;
+}
+
+void Table::set_cell_text(unsigned r, unsigned c, const string &t)
+{
+	if(r>=rows || c>=columns)
+		throw InvalidParameterValue("Cell coordinates out of bounds");
+
+	data[r*columns+c]=t;
+}
+
+void Table::render_special(const Part &part) const
+{
+	if(part.get_name()=="cells")
+	{
+		const GL::Font *const font=style->get_font();
+		const float font_size=font->get_default_size();
+
+		unsigned free_width=geom.w;
+		for(unsigned i=0; i<columns; ++i)
+			free_width-=col_w[i];
+
+		Geometry cgeom;
+		cgeom.h=geom.h/rows;
+		cgeom.y=geom.h-cgeom.h;
+
+		for(unsigned i=0; i<rows; ++i)
+		{
+			cgeom.x=0;
+			for(unsigned j=0; j<columns; ++j)
+			{
+				if(col_w[j])
+					cgeom.w=col_w[j];
+				else
+					cgeom.w=free_width/columns;
+
+				const string &text=data[i*columns+j];
+				Geometry rgeom;
+				rgeom.x=cgeom.x;
+				rgeom.y=cgeom.y;
+				rgeom.w=static_cast<unsigned>(font->get_string_width(text)*font_size);
+				rgeom.h=static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
+
+				part.get_alignment().apply(rgeom, cgeom, part.get_margin());
+
+				GL::push_matrix();
+				GL::translate(rgeom.x, rgeom.y, 0);
+				GL::scale_uniform(font_size);
+				font->draw_string(text);
+				GL::pop_matrix();
+
+				cgeom.x+=cgeom.w;
+			}
+
+			cgeom.y-=cgeom.h;
+		}
+	}
+}
+
+void Table::on_style_change()
+{
+}
+
+
+Table::Loader::Loader(Table &t):
+	Widget::Loader(t)
+{
+	add("cell_text",    &Loader::cell_text);
+	add("column_width", &Loader::column_width);
+	add("columns",      &Loader::columns);
+	add("rows",         &Loader::rows);
+}
+
+void Table::Loader::cell_text(unsigned r, unsigned c, const string &t)
+{
+	static_cast<Table &>(wdg).set_cell_text(r, c, t);
+}
+
+void Table::Loader::column_width(unsigned c, unsigned w)
+{
+	static_cast<Table &>(wdg).set_column_width(c, w);
+}
+
+void Table::Loader::columns(unsigned c)
+{
+	static_cast<Table &>(wdg).set_columns(c);
+}
+
+void Table::Loader::rows(unsigned r)
+{
+	static_cast<Table &>(wdg).set_rows(r);
+}
+
+} // namespace GLtk
+} // namespace Msp
diff --git a/source/table.h b/source/table.h
new file mode 100644
index 0000000..190973e
--- /dev/null
+++ b/source/table.h
@@ -0,0 +1,58 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2008  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#ifndef MSP_GLTK_TABLE_H_
+#define MSP_GLTK_TABLE_H_
+
+#include <string>
+#include <vector>
+#include "widget.h"
+
+namespace Msp {
+namespace GLtk {
+
+class Table: public Widget
+{
+public:
+	class Loader: public Widget::Loader
+	{
+	public:
+		Loader(Table &);
+	private:
+		void cell_text(unsigned, unsigned, const std::string &);
+		void column_width(unsigned, unsigned);
+		void columns(unsigned);
+		void rows(unsigned);
+	};
+
+private:
+	unsigned rows;
+	unsigned columns;
+	std::vector<std::string> data;
+	std::vector<unsigned> col_w;
+
+public:
+	Table(const Resources &);
+
+	void set_rows(unsigned);
+	void set_columns(unsigned);
+	unsigned get_rows() const { return rows; }
+	unsigned get_columns() const { return columns; }
+
+	void set_column_width(unsigned, unsigned);
+	void set_cell_text(unsigned, unsigned, const std::string &);
+private:
+	virtual const char *get_class() const { return "table"; }
+
+	virtual void render_special(const Part &) const;
+	virtual void on_style_change();
+};
+
+} // namespace GLtk
+} // namespace Msp
+
+#endif