span_layout_view.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 */
28 
29 #pragma once
30 
31 #include "../View/view.h"
32 #include "../../Display/Font/font.h"
33 #include "../../Display/2D/color.h"
34 #include "label_view.h"
35 
36 namespace clan
37 {
38  class SpanLayoutViewImpl;
39 
40  class SpanLayoutView : public View
41  {
42  public:
44 
45  const std::shared_ptr<Style> &text_style(const std::string &text_class = std::string()) const;
46 
47  void set_text_alignment(TextAlignment alignment);
48 
49  void clear();
50  void add_text(const std::string &text, const std::string &text_class = std::string());
51  void add_child(const std::shared_ptr<View> &view, float baseline_offset = 0.0f);
52 
53  void layout_children(Canvas &canvas) override;
54 
55  protected:
56  void render_content(Canvas &canvas) override;
57  float calculate_preferred_width(Canvas &canvas) override;
58  float calculate_preferred_height(Canvas &canvas, float width) override;
59  float calculate_first_baseline_offset(Canvas &canvas, float width) override;
60  float calculate_last_baseline_offset(Canvas &canvas, float width) override;
61  void child_added(const std::shared_ptr<View> &view) override;
62  void child_removed(const std::shared_ptr<View> &view) override;
63 
64  private:
65  std::shared_ptr<SpanLayoutViewImpl> impl;
66  };
67 }
Definition: clanapp.h:35
View for an area of the user interface.
Definition: view.h:65
float calculate_first_baseline_offset(Canvas &canvas, float width) override
Calculates the offset to the first baseline.
2D Graphics Canvas
Definition: canvas.h:71
const std::shared_ptr< Style > & text_style(const std::string &text_class=std::string()) const
float calculate_last_baseline_offset(Canvas &canvas, float width) override
Calculates the offset to the last baseline.
float calculate_preferred_width(Canvas &canvas) override
Calculates the preferred width of this view.
void set_text_alignment(TextAlignment alignment)
float calculate_preferred_height(Canvas &canvas, float width) override
Calculates the preferred height of this view.
void child_removed(const std::shared_ptr< View > &view) override
Child view was removed from this view.
std::shared_ptr< View > add_child()
Definition: view.h:106
TextAlignment
Definition: label_view.h:38
void child_added(const std::shared_ptr< View > &view) override
Child view was added to this view.
Canvas canvas() const
void layout_children(Canvas &canvas) override
Sets the view geometry for all children of this view.
void add_text(const std::string &text, const std::string &text_class=std::string())
void render_content(Canvas &canvas) override
Renders the content of a view.
Definition: span_layout_view.h:40