code_twain/sane/DlgPage.h

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#pragma once
#include <Windows.h>
#include <CommCtrl.h>
#include <string>
#include <vector>
#include <sane/sane_ex.h>
#include <sane/sane_option_definitions.h>
// CDlgIndicator 对话框
#define WM_REFRESH_OPTION WM_USER + 111 // WPARAM: source option SN, LPARAM: unused now
extern HMODULE g_my_inst;
class dlg_base
{
protected:
HWND hwnd_;
HWND parent_;
UINT idd_;
static std::wstring prop_name;
static BOOL CALLBACK dlg_proc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp);
virtual BOOL handle_message(UINT msg, WPARAM wp, LPARAM lp);
virtual void on_font_changed(void);
void create(void);
public:
dlg_base(HWND parent, UINT idd);
virtual ~dlg_base();
static bool get_max_size(SIZE& dst, const SIZE& src); // return whether changed dst
static bool get_max_size(SIZE& dst, int cx, int cy); // return whether changed dst
public:
HWND hwnd(void);
void screen_2_client(LPRECT r);
void client_2_screen(LPRECT r);
HWND get_item(UINT id);
BOOL set_font(HFONT font);
HFONT get_font(void);
};
class dlg_page : public dlg_base
{
std::wstring name_;
SIZE size_;
SIZE font_size_;
UINT ctrl_id_;
POINT pos_;
static UINT dyn_id_base;
static int gap_x;
static int gap_y;
BOOL handle_message(UINT msg, WPARAM wp, LPARAM lp) override;
void on_font_changed(void) override;
void refresh_font(void);
bool create_control_bool(int sn, const SANE_Option_Descriptor* desc, void* cur_val);
bool create_control_int(int sn, const SANE_Option_Descriptor* desc, void* cur_val);
bool create_control_float(int sn, const SANE_Option_Descriptor* desc, void* cur_val);
bool create_control_string(int sn, const SANE_Option_Descriptor* desc, void* cur_val);
bool create_control_button(int sn, const SANE_Option_Descriptor* desc, void* cur_val);
public:
dlg_page(HWND parent, const wchar_t* name);
~dlg_page();
public:
bool add_control(int sn, const SANE_Option_Descriptor* desc, void* cur_val);
SIZE desired_size(void);
void show(void);
void hide(void);
const wchar_t* name(void);
};