annotate foosdk/sdk/foobar2000/foo_sample/ui_element.cpp @ 1:20d02a178406 default tip

*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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1 #include "stdafx.h"
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2
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3 #include <libPPUI/win32_op.h>
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4 #include <helpers/BumpableElem.h>
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5
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6
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7 namespace {
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8 // Anonymous namespace : standard practice in fb2k components
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9 // Nothing outside should have any reason to see these symbols, and we don't want funny results if another cpp has similarly named classes.
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10 // service_factory at the bottom takes care of publishing our class.
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11
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12 // This is our GUID. Substitute with your own when reusing code.
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13 static const GUID guid_myelem = { 0xb46dc166, 0x88f3, 0x4b45, { 0x9f, 0x77, 0xab, 0x33, 0xf4, 0xc3, 0xf2, 0xe4 } };
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14
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15 class CMyElemWindow : public ui_element_instance, public CWindowImpl<CMyElemWindow> {
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16 public:
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17 // ATL window class declaration. Replace class name with your own when reusing code.
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18 DECLARE_WND_CLASS_EX(TEXT("{DC2917D5-1288-4434-A28C-F16CFCE13C4B}"),CS_VREDRAW | CS_HREDRAW,(-1));
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19
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20 void initialize_window(HWND parent) {WIN32_OP(Create(parent) != NULL);}
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21
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22 BEGIN_MSG_MAP_EX(CMyElemWindow)
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23 MESSAGE_HANDLER(WM_LBUTTONDOWN,OnLButtonDown);
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24 MSG_WM_ERASEBKGND(OnEraseBkgnd)
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25 MSG_WM_PAINT(OnPaint)
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26 END_MSG_MAP()
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27
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28 CMyElemWindow(ui_element_config::ptr,ui_element_instance_callback_ptr p_callback);
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29 HWND get_wnd() {return *this;}
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30 void set_configuration(ui_element_config::ptr config) {m_config = config;}
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31 ui_element_config::ptr get_configuration() {return m_config;}
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32 static GUID g_get_guid() {
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33 return guid_myelem;
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34 }
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35 static GUID g_get_subclass() {return ui_element_subclass_utility;}
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36 static void g_get_name(pfc::string_base & out) {out = "Sample UI Element";}
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37 static ui_element_config::ptr g_get_default_configuration() {return ui_element_config::g_create_empty(g_get_guid());}
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38 static const char * g_get_description() {return "This is a sample UI Element.";}
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39
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40 void notify(const GUID & p_what, t_size p_param1, const void * p_param2, t_size p_param2size);
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41 private:
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42 LRESULT OnLButtonDown(UINT,WPARAM,LPARAM,BOOL&) {m_callback->request_replace(this);return 0;}
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43 void OnPaint(CDCHandle);
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44 BOOL OnEraseBkgnd(CDCHandle);
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45 ui_element_config::ptr m_config;
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46 protected:
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47 // this must be declared as protected for ui_element_impl_withpopup<> to work.
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48 const ui_element_instance_callback_ptr m_callback;
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49 };
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50 void CMyElemWindow::notify(const GUID & p_what, t_size p_param1, const void * p_param2, t_size p_param2size) {
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51 if (p_what == ui_element_notify_colors_changed || p_what == ui_element_notify_font_changed) {
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52 // we use global colors and fonts - trigger a repaint whenever these change.
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53 Invalidate();
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54 }
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55 }
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56 CMyElemWindow::CMyElemWindow(ui_element_config::ptr config,ui_element_instance_callback_ptr p_callback) : m_callback(p_callback), m_config(config) {
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57 }
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58
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59 BOOL CMyElemWindow::OnEraseBkgnd(CDCHandle dc) {
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60 CRect rc; WIN32_OP_D( GetClientRect(&rc) );
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61 CBrush brush;
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62 WIN32_OP_D( brush.CreateSolidBrush( m_callback->query_std_color(ui_color_background) ) != NULL );
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63 WIN32_OP_D( dc.FillRect(&rc, brush) );
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64 return TRUE;
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65 }
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66 void CMyElemWindow::OnPaint(CDCHandle) {
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67 CPaintDC dc(*this);
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68 dc.SetTextColor( m_callback->query_std_color(ui_color_text) );
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69 dc.SetBkMode(TRANSPARENT);
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70 SelectObjectScope fontScope(dc, (HGDIOBJ) m_callback->query_font_ex(ui_font_default) );
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71 const UINT format = DT_NOPREFIX | DT_CENTER | DT_VCENTER | DT_SINGLELINE;
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72 CRect rc;
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73 WIN32_OP_D( GetClientRect(&rc) );
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74 WIN32_OP_D( dc.DrawText(_T("This is a sample element."), -1, &rc, format) > 0 );
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75 }
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76
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77 // ui_element_impl_withpopup autogenerates standalone version of our component and proper menu commands. Use ui_element_impl instead if you don't want that.
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78 class ui_element_myimpl : public ui_element_impl_withpopup<CMyElemWindow> {};
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79
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80 static service_factory_single_t<ui_element_myimpl> g_ui_element_myimpl_factory;
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81
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82 } // namespace