mirror of
https://github.com/reactos/reactos.git
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211 lines
7.1 KiB
C
211 lines
7.1 KiB
C
/*
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* ReactOS calc
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*
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* button.c
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*
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* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
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#include <windows.h>
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#include <tchar.h>
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#include "button.h"
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COLORREF text_colour;
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COLORREF background_colour;
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COLORREF disabled_background_colour;
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COLORREF light;
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COLORREF highlight;
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COLORREF shadow;
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COLORREF dark_shadow;
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const COLORREF CLR_BTN_WHITE = RGB(255, 255, 255);
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const COLORREF CLR_BTN_BLACK = RGB(0, 0, 0);
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const COLORREF CLR_BTN_DGREY = RGB(128, 128, 128);
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const COLORREF CLR_BTN_GREY = RGB(192, 192, 192);
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const COLORREF CLR_BTN_LLGREY = RGB(223, 223, 223);
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const int BUTTON_IN = 0x01;
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const int BUTTON_OUT = 0x02;
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const int BUTTON_BLACK_BORDER = 0x04;
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void InitColours(void)
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{
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// text_colour = GetSysColor(COLOR_BTNTEXT);
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text_colour = RGB(255,0,0);
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background_colour = GetSysColor(COLOR_BTNFACE);
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disabled_background_colour = background_colour;
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light = GetSysColor(COLOR_3DLIGHT);
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highlight = GetSysColor(COLOR_BTNHIGHLIGHT);
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shadow = GetSysColor(COLOR_BTNSHADOW);
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dark_shadow = GetSysColor(COLOR_3DDKSHADOW);
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}
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static void FillSolidRect(HDC hDC, int x, int y, int cx, int cy, COLORREF clr)
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{
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RECT rect;
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SetBkColor(hDC, clr);
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rect.left = x;
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rect.top = y;
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rect.right = x + cx;
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rect.bottom = y + cy;
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ExtTextOut(hDC, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
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}
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void Draw3dRect(HDC hDC, int x, int y, int cx, int cy, COLORREF clrTopLeft, COLORREF clrBottomRight)
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{
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FillSolidRect(hDC, x, y, cx - 1, 1, clrTopLeft);
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FillSolidRect(hDC, x, y, 1, cy - 1, clrTopLeft);
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FillSolidRect(hDC, x + cx, y, -1, cy, clrBottomRight);
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FillSolidRect(hDC, x, y + cy, cx, -1, clrBottomRight);
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}
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void DrawFilledRect(HDC hdc, LPRECT r, COLORREF colour)
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{
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HBRUSH hBrush;
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hBrush = CreateSolidBrush(colour);
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FillRect(hdc, r, hBrush);
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}
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void DrawLine(HDC hdc, long sx, long sy, long ex, long ey, COLORREF colour)
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{
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HPEN new_pen;
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HPEN old_pen;
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new_pen = CreatePen(PS_SOLID, 1, colour);
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old_pen = SelectObject(hdc, &new_pen);
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MoveToEx(hdc, sx, sy, NULL);
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LineTo(hdc, ex, ey);
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SelectObject(hdc, old_pen);
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DeleteObject(new_pen);
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}
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void DrawFrame(HDC hdc, RECT r, int state)
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{
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COLORREF colour;
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if (state & BUTTON_BLACK_BORDER) {
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colour = CLR_BTN_BLACK;
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DrawLine(hdc, r.left, r.top, r.right, r.top, colour); // Across top
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DrawLine(hdc, r.left, r.top, r.left, r.bottom, colour); // Down left
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DrawLine(hdc, r.left, r.bottom - 1, r.right, r.bottom - 1, colour); // Across bottom
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DrawLine(hdc, r.right - 1, r.top, r.right - 1, r.bottom, colour); // Down right
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InflateRect(&r, -1, -1);
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}
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if (state & BUTTON_OUT) {
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colour = highlight;
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DrawLine(hdc, r.left, r.top, r.right, r.top, colour); // Across top
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DrawLine(hdc, r.left, r.top, r.left, r.bottom, colour); // Down left
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colour = dark_shadow;
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DrawLine(hdc, r.left, r.bottom - 1, r.right, r.bottom - 1, colour); // Across bottom
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DrawLine(hdc, r.right - 1, r.top, r.right - 1, r.bottom, colour); // Down right
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InflateRect(&r, -1, -1);
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colour = light;
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DrawLine(hdc, r.left, r.top, r.right, r.top, colour); // Across top
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DrawLine(hdc, r.left, r.top, r.left, r.bottom, colour); // Down left
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colour = shadow;
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DrawLine(hdc, r.left, r.bottom - 1, r.right, r.bottom - 1, colour); // Across bottom
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DrawLine(hdc, r.right - 1, r.top, r.right - 1, r.bottom, colour); // Down right
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}
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if (state & BUTTON_IN) {
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colour = dark_shadow;
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DrawLine(hdc, r.left, r.top, r.right, r.top, colour); // Across top
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DrawLine(hdc, r.left, r.top, r.left, r.bottom, colour); // Down left
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DrawLine(hdc, r.left, r.bottom - 1, r.right, r.bottom - 1, colour); // Across bottom
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DrawLine(hdc, r.right - 1, r.top, r.right - 1, r.bottom, colour); // Down right
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InflateRect(&r, -1, -1);
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colour = shadow;
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DrawLine(hdc, r.left, r.top, r.right, r.top, colour); // Across top
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DrawLine(hdc, r.left, r.top, r.left, r.bottom, colour); // Down left
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DrawLine(hdc, r.left, r.bottom - 1, r.right, r.bottom - 1, colour); // Across bottom
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DrawLine(hdc, r.right - 1, r.top, r.right - 1, r.bottom, colour); // Down right
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}
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}
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void DrawButtonText(HDC hdc, LPRECT r, LPCTSTR Buf, COLORREF text_colour)
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{
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COLORREF previous_colour;
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previous_colour = SetTextColor(hdc, text_colour);
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SetBkMode(hdc, TRANSPARENT);
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DrawText(hdc, Buf, _tcslen(Buf), r, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
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SetTextColor(hdc, previous_colour);
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}
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#define bufSize 512
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void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
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{
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HDC hdc;
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RECT focus_rect, button_rect, offset_button_rect;
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UINT state;
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TCHAR buffer[bufSize];
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hdc = lpDrawItemStruct->hDC;
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state = lpDrawItemStruct->itemState;
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CopyRect(&focus_rect, &lpDrawItemStruct->rcItem);
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CopyRect(&button_rect, &lpDrawItemStruct->rcItem);
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// Set the focus rectangle to just past the border decoration
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focus_rect.left += 4;
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focus_rect.right -= 4;
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focus_rect.top += 4;
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focus_rect.bottom -= 4;
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// Retrieve the button's caption
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GetWindowText(lpDrawItemStruct->hwndItem, buffer, bufSize);
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if (state & ODS_DISABLED) {
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DrawFilledRect(hdc, &button_rect, disabled_background_colour);
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} else {
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DrawFilledRect(hdc, &button_rect, background_colour);
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}
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if (state & ODS_SELECTED) {
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DrawFrame(hdc, button_rect, BUTTON_IN);
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} else {
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if ((state & ODS_DEFAULT) || (state & ODS_FOCUS)) {
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DrawFrame(hdc, button_rect, BUTTON_OUT | BUTTON_BLACK_BORDER);
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} else {
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DrawFrame(hdc, button_rect, BUTTON_OUT);
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}
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}
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if (state & ODS_DISABLED) {
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offset_button_rect = button_rect;
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OffsetRect(&offset_button_rect, 1, 1);
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DrawButtonText(hdc, &offset_button_rect, buffer, CLR_BTN_WHITE);
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DrawButtonText(hdc, &button_rect, buffer, CLR_BTN_DGREY);
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} else {
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DrawButtonText(hdc, &button_rect, buffer, text_colour);
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}
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if (state & ODS_FOCUS) {
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DrawFocusRect(lpDrawItemStruct->hDC, (LPRECT)&focus_rect);
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}
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}
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