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Settled the placement of functions formerly in sizing_windows.c and updated the winapi_windows.h header file to suit.

This commit is contained in:
Pietro Gagliardi 2014-08-09 10:26:42 -04:00
parent 5198f7202f
commit b4a97e871a
5 changed files with 119 additions and 121 deletions
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58
redo/basicctrls_windows.c
View File

@ -3,64 +3,6 @@
#include "winapi_windows.h"
#include "_cgo_export.h"
HWND newControl(LPWSTR class, DWORD style, DWORD extstyle)
{
HWND hwnd;
hwnd = CreateWindowExW(
extstyle,
class, L"",
style | WS_CHILD | WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
/*
the following has the consequence of making the control message-only at first
this shouldn't cause any problems... hopefully not
but see the msgwndproc() for caveat info
also don't use low control IDs as they will conflict with dialog boxes (IDCANCEL, etc.)
*/
msgwin, (HMENU) 100, hInstance, NULL);
if (hwnd == NULL)
xpanic("error creating control", GetLastError());
return hwnd;
}
void controlSetParent(HWND control, HWND parent)
{
if (SetParent(control, parent) == NULL)
xpanic("error changing control parent", GetLastError());
}
void controlSetControlFont(HWND which)
{
SendMessageW(which, WM_SETFONT, (WPARAM) controlFont, TRUE);
}
/*
all controls that have events receive the events themselves through subclasses
to do this, all windows (including the message-only window; see http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q104069) forward WM_COMMAND to each control with this function
*/
LRESULT forwardCommand(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HWND control = (HWND) lParam;
/* don't generate an event if the control (if there is one) is unparented (a child of the message-only window) */
if (control != NULL && IsChild(msgwin, control) == 0)
return SendMessageW(control, msgCOMMAND, wParam, lParam);
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
LRESULT forwardNotify(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
NMHDR *nmhdr = (NMHDR *) lParam;
HWND control = nmhdr->hwndFrom;
/* don't generate an event if the control (if there is one) is unparented (a child of the message-only window) */
if (control != NULL && IsChild(msgwin, control) == 0)
return SendMessageW(control, msgNOTIFY, wParam, lParam);
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
static LRESULT CALLBACK buttonSubProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR id, DWORD_PTR data)
{
switch (uMsg) {

23
redo/container_windows.c
View File

@ -82,3 +82,26 @@ HWND newContainer(void *data)
xpanic("container creation failed", GetLastError());
return hwnd;
}
void calculateBaseUnits(HWND hwnd, int *baseX, int *baseY, LONG *internalLeading)
{
HDC dc;
HFONT prevFont;
TEXTMETRICW tm;
dc = GetDC(hwnd);
if (dc == NULL)
xpanic("error getting DC for preferred size calculations", GetLastError());
prevFont = (HFONT) SelectObject(dc, controlFont);
if (prevFont == NULL)
xpanic("error loading control font into device context for preferred size calculation", GetLastError());
if (GetTextMetricsW(dc, &tm) == 0)
xpanic("error getting text metrics for preferred size calculations", GetLastError());
*baseX = (int) tm.tmAveCharWidth; /* TODO not optimal; third reference below has better way */
*baseY = (int) tm.tmHeight;
*internalLeading = tm.tmInternalLeading;
if (SelectObject(dc, prevFont) != controlFont)
xpanic("error restoring previous font into device context after preferred size calculations", GetLastError());
if (ReleaseDC(hwnd, dc) == 0)
xpanic("error releasing DC for preferred size calculations", GetLastError());
}

89
redo/control_windows.c Normal file
View File

@ -0,0 +1,89 @@
/* 17 july 2014 */
#include "winapi_windows.h"
#include "_cgo_export.h"
HWND newControl(LPWSTR class, DWORD style, DWORD extstyle)
{
HWND hwnd;
hwnd = CreateWindowExW(
extstyle,
class, L"",
style | WS_CHILD | WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
/*
the following has the consequence of making the control message-only at first
this shouldn't cause any problems... hopefully not
but see the msgwndproc() for caveat info
also don't use low control IDs as they will conflict with dialog boxes (IDCANCEL, etc.)
*/
msgwin, (HMENU) 100, hInstance, NULL);
if (hwnd == NULL)
xpanic("error creating control", GetLastError());
return hwnd;
}
void controlSetParent(HWND control, HWND parent)
{
if (SetParent(control, parent) == NULL)
xpanic("error changing control parent", GetLastError());
}
void controlSetControlFont(HWND which)
{
SendMessageW(which, WM_SETFONT, (WPARAM) controlFont, TRUE);
}
/*
all controls that have events receive the events themselves through subclasses
to do this, all windows (including the message-only window; see http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q104069) forward WM_COMMAND to each control with this function
*/
LRESULT forwardCommand(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HWND control = (HWND) lParam;
/* don't generate an event if the control (if there is one) is unparented (a child of the message-only window) */
if (control != NULL && IsChild(msgwin, control) == 0)
return SendMessageW(control, msgCOMMAND, wParam, lParam);
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
LRESULT forwardNotify(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
NMHDR *nmhdr = (NMHDR *) lParam;
HWND control = nmhdr->hwndFrom;
/* don't generate an event if the control (if there is one) is unparented (a child of the message-only window) */
if (control != NULL && IsChild(msgwin, control) == 0)
return SendMessageW(control, msgNOTIFY, wParam, lParam);
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
void moveWindow(HWND hwnd, int x, int y, int width, int height)
{
if (MoveWindow(hwnd, x, y, width, height, TRUE) == 0)
xpanic("error setting window/control rect", GetLastError());
}
LONG controlTextLength(HWND hwnd, LPWSTR text)
{
HDC dc;
HFONT prev;
SIZE size;
dc = GetDC(hwnd);
if (dc == NULL)
xpanic("error getting DC of control for text length", GetLastError());
prev = SelectObject(dc, controlFont);
if (prev == NULL)
xpanic("error setting control font to DC for text length", GetLastError());
if (GetTextExtentPoint32W(dc, text, wcslen(text), &size) == 0)
xpanic("error actually getting text length", GetLastError());
if (SelectObject(dc, prev) != controlFont)
xpanic("error restoring previous control font to DC for text length", GetLastError());
if (ReleaseDC(hwnd, dc) == 0)
xpanic("error releasing DC of control for text length", GetLastError());
return size.cx;
}

56
redo/sizing_windows.c
View File

@ -1,56 +0,0 @@
/* 17 july 2014 */
#include "winapi_windows.h"
#include "_cgo_export.h"
/* TODO figure out where these should go */
void calculateBaseUnits(HWND hwnd, int *baseX, int *baseY, LONG *internalLeading)
{
HDC dc;
HFONT prevFont;
TEXTMETRICW tm;
dc = GetDC(hwnd);
if (dc == NULL)
xpanic("error getting DC for preferred size calculations", GetLastError());
prevFont = (HFONT) SelectObject(dc, controlFont);
if (prevFont == NULL)
xpanic("error loading control font into device context for preferred size calculation", GetLastError());
if (GetTextMetricsW(dc, &tm) == 0)
xpanic("error getting text metrics for preferred size calculations", GetLastError());
*baseX = (int) tm.tmAveCharWidth; /* TODO not optimal; third reference below has better way */
*baseY = (int) tm.tmHeight;
*internalLeading = tm.tmInternalLeading;
if (SelectObject(dc, prevFont) != controlFont)
xpanic("error restoring previous font into device context after preferred size calculations", GetLastError());
if (ReleaseDC(hwnd, dc) == 0)
xpanic("error releasing DC for preferred size calculations", GetLastError());
}
void moveWindow(HWND hwnd, int x, int y, int width, int height)
{
if (MoveWindow(hwnd, x, y, width, height, TRUE) == 0)
xpanic("error setting window/control rect", GetLastError());
}
LONG controlTextLength(HWND hwnd, LPWSTR text)
{
HDC dc;
HFONT prev;
SIZE size;
dc = GetDC(hwnd);
if (dc == NULL)
xpanic("error getting DC of control for text length", GetLastError());
prev = SelectObject(dc, controlFont);
if (prev == NULL)
xpanic("error setting control font to DC for text length", GetLastError());
if (GetTextExtentPoint32W(dc, text, wcslen(text), &size) == 0)
xpanic("error actually getting text length", GetLastError());
if (SelectObject(dc, prev) != controlFont)
xpanic("error restoring previous control font to DC for text length", GetLastError());
if (ReleaseDC(hwnd, dc) == 0)
xpanic("error releasing DC of control for text length", GetLastError());
return size.cx;
}

14
redo/winapi_windows.h
View File

@ -44,12 +44,16 @@ extern BOOL (*WINAPI fv_SetWindowSubclass)(HWND, SUBCLASSPROC, UINT_PTR, DWORD_P
extern BOOL (*WINAPI fv_RemoveWindowSubclass)(HWND, SUBCLASSPROC, UINT_PTR);
extern LRESULT (*WINAPI fv_DefSubclassProc)(HWND, UINT, WPARAM, LPARAM);
/* [TODO rename] controls_windows.c */
/* control_windows.c */
extern HWND newControl(LPWSTR, DWORD, DWORD);
extern void controlSetParent(HWND, HWND);
extern void controlSetControlFont(HWND);
extern LRESULT forwardCommand(HWND, UINT, WPARAM, LPARAM);
extern LRESULT forwardNotify(HWND, UINT, WPARAM, LPARAM);
extern void moveWindow(HWND, int, int, int, int);
extern LONG controlTextLength(HWND, LPWSTR);
/* basicctrls_windows.c */
extern void setButtonSubclass(HWND, void *);
extern void setCheckboxSubclass(HWND, void *);
extern BOOL checkboxChecked(HWND);
@ -68,11 +72,6 @@ extern HFONT statusbarFont;
extern HBRUSH hollowBrush;
extern DWORD initWindows(char **);
/* sizing_windows.c */
extern void calculateBaseUnits(HWND, int *, int *, LONG *);
extern void moveWindow(HWND, int, int, int, int);
extern LONG controlTextLength(HWND, LPWSTR);
/* window_windows.c */
extern DWORD makeWindowWindowClass(char **);
extern HWND newWindow(LPWSTR, int, int, void *);
@ -85,7 +84,7 @@ extern void setWindowText(HWND, LPWSTR);
extern void updateWindow(HWND);
extern void storelpParam(HWND, LPARAM);
/* containers_windows.go */
/* tab_windows.go */
extern LPWSTR xWC_TABCONTROL;
extern void setTabSubclass(HWND, void *);
extern void tabAppend(HWND, LPWSTR);
@ -102,6 +101,7 @@ extern void tableAddExtendedStyles(HWND, LPARAM);
/* container_windows.c */
extern DWORD makeContainerWindowClass(char **);
extern HWND newContainer(void *);
extern void calculateBaseUnits(HWND, int *, int *, LONG *);
/* area_window.c */
extern void repaintArea(HWND);