/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Windows Float Bar
*
* Copyright 2013 Zhang Zhaolong <zhangzl2013@126.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <winpr/crt.h>
#include <winpr/windows.h>
#include "resource.h"
#include "wf_client.h"
#include "wf_floatbar.h"
#include "wf_gdi.h"
typedef struct _Button Button;
/* TIMERs */
#define TIMER_HIDE 1
#define TIMER_ANIMAT_SHOW 2
#define TIMER_ANIMAT_HIDE 3
/* Button Type */
#define BUTTON_LOCKPIN 0
#define BUTTON_MINIMIZE 1
#define BUTTON_RESTORE 2
#define BUTTON_CLOSE 3
#define BTN_MAX 4
/* bmp size */
#define BACKGROUND_W 581
#define BACKGROUND_H 29
#define LOCK_X 13
#define MINIMIZE_X (BACKGROUND_W - 91)
#define CLOSE_X (BACKGROUND_W - 37)
#define RESTORE_X (BACKGROUND_W - 64)
#define BUTTON_Y 2
#define BUTTON_WIDTH 24
#define BUTTON_HEIGHT 24
struct _Button
{
FloatBar* floatbar;
int type;
int x, y, h, w;
int active;
HBITMAP bmp;
HBITMAP bmp_act;
/* Lock Specified */
HBITMAP locked_bmp;
HBITMAP locked_bmp_act;
HBITMAP unlocked_bmp;
HBITMAP unlocked_bmp_act;
};
struct _FloatBar
{
HWND parent;
HWND hwnd;
RECT rect;
LONG width;
LONG height;
wfContext* wfc;
Button* buttons[BTN_MAX];
BOOL shown;
BOOL locked;
HDC hdcmem;
HBITMAP background;
};
static int button_hit(Button* button)
{
FloatBar* floatbar = button->floatbar;
switch (button->type)
{
case BUTTON_LOCKPIN:
if (!floatbar->locked)
{
button->bmp = button->locked_bmp;
button->bmp_act = button->locked_bmp_act;
}
else
{
button->bmp = button->unlocked_bmp;
button->bmp_act = button->unlocked_bmp_act;
}
floatbar->locked = ~floatbar->locked;
InvalidateRect(button->floatbar->hwnd, NULL, FALSE);
UpdateWindow(button->floatbar->hwnd);
break;
case BUTTON_MINIMIZE:
ShowWindow(floatbar->parent, SW_MINIMIZE);
break;
case BUTTON_RESTORE:
wf_toggle_fullscreen(floatbar->wfc);
break;
case BUTTON_CLOSE:
SendMessage(floatbar->parent, WM_DESTROY, 0 , 0);
break;
default:
return 0;
}
return 0;
}
static int button_paint(Button* button, HDC hdc)
{
FloatBar* floatbar = button->floatbar;
SelectObject(floatbar->hdcmem, button->active ? button->bmp_act : button->bmp);
StretchBlt(hdc, button->x, button->y, button->w, button->h, floatbar->hdcmem, 0,
0, button->w, button->h, SRCCOPY);
return 0;
}
static Button* floatbar_create_button(FloatBar* floatbar, int type, int resid,
int resid_act, int x, int y, int h, int w)
{
Button* button;
button = (Button*)malloc(sizeof(Button));
if (!button)
return NULL;
button->floatbar = floatbar;
button->type = type;
button->x = x;
button->y = y;
button->w = w;
button->h = h;
button->active = FALSE;
button->bmp = (HBITMAP)LoadImage(floatbar->wfc->hInstance,
MAKEINTRESOURCE(resid), IMAGE_BITMAP, w, h, LR_DEFAULTCOLOR);
button->bmp_act = (HBITMAP)LoadImage(floatbar->wfc->hInstance,
MAKEINTRESOURCE(resid_act), IMAGE_BITMAP, w, h, LR_DEFAULTCOLOR);
return button;
}
static Button* floatbar_create_lock_button(FloatBar* floatbar,
int unlock_resid, int unlock_resid_act,
int lock_resid, int lock_resid_act,
int x, int y, int h, int w)
{
Button* button;
button = floatbar_create_button(floatbar, BUTTON_LOCKPIN, unlock_resid,
unlock_resid_act, x, y, h, w);
if (!button)
return NULL;
button->unlocked_bmp = button->bmp;
button->unlocked_bmp_act = button->bmp_act;
button->locked_bmp = (HBITMAP)LoadImage(floatbar->wfc->hInstance,
MAKEINTRESOURCE(lock_resid), IMAGE_BITMAP, w, h, LR_DEFAULTCOLOR);
button->locked_bmp_act = (HBITMAP)LoadImage(floatbar->wfc->hInstance,
MAKEINTRESOURCE(lock_resid_act), IMAGE_BITMAP, w, h, LR_DEFAULTCOLOR);
return button;
}
static Button* floatbar_get_button(FloatBar* floatbar, int x, int y)
{
int i;
if (y > BUTTON_Y && y < BUTTON_Y + BUTTON_HEIGHT)
for (i = 0; i < BTN_MAX; i++)
if (x > floatbar->buttons[i]->x
&& x < floatbar->buttons[i]->x + floatbar->buttons[i]->w)
return floatbar->buttons[i];
return NULL;
}
static int floatbar_paint(FloatBar* floatbar, HDC hdc)
{
int i;
/* paint background */
SelectObject(floatbar->hdcmem, floatbar->background);
StretchBlt(hdc, 0, 0, BACKGROUND_W, BACKGROUND_H, floatbar->hdcmem, 0, 0,
BACKGROUND_W, BACKGROUND_H, SRCCOPY);
/* paint buttons */
for (i = 0; i < BTN_MAX; i++)
button_paint(floatbar->buttons[i], hdc);
return 0;
}
static int floatbar_animation(FloatBar* floatbar, BOOL show)
{
SetTimer(floatbar->hwnd, show ? TIMER_ANIMAT_SHOW : TIMER_ANIMAT_HIDE, 10,
NULL);
floatbar->shown = show;
return 0;
}
LRESULT CALLBACK floatbar_proc(HWND hWnd, UINT Msg, WPARAM wParam,
LPARAM lParam)
{
static int dragging = FALSE;
static int lbtn_dwn = FALSE;
static int btn_dwn_x = 0;
static FloatBar* floatbar;
static TRACKMOUSEEVENT tme;
PAINTSTRUCT ps;
Button* button;
HDC hdc;
int pos_x;
int pos_y;
int xScreen = GetSystemMetrics(SM_CXSCREEN);
switch (Msg)
{
case WM_CREATE:
floatbar = (FloatBar*)((CREATESTRUCT*)lParam)->lpCreateParams;
floatbar->hwnd = hWnd;
floatbar->parent = GetParent(hWnd);
GetWindowRect(floatbar->hwnd, &floatbar->rect);
floatbar->width = floatbar->rect.right - floatbar->rect.left;
floatbar->height = floatbar->rect.bottom - floatbar->rect.top;
hdc = GetDC(hWnd);
floatbar->hdcmem = CreateCompatibleDC(hdc);
ReleaseDC(hWnd, hdc);
tme.cbSize = sizeof(TRACKMOUSEEVENT);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = hWnd;
tme.dwHoverTime = HOVER_DEFAULT;
SetTimer(hWnd, TIMER_HIDE, 3000, NULL);
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
floatbar_paint(floatbar, hdc);
EndPaint(hWnd, &ps);
break;
case WM_LBUTTONDOWN:
pos_x = lParam & 0xffff;
pos_y = (lParam >> 16) & 0xffff;
button = floatbar_get_button(floatbar, pos_x, pos_y);
if (!button)
{
SetCapture(hWnd);
dragging = TRUE;
btn_dwn_x = lParam & 0xffff;
}
else
lbtn_dwn = TRUE;
break;
case WM_LBUTTONUP:
pos_x = lParam & 0xffff;
pos_y = (lParam >> 16) & 0xffff;
ReleaseCapture();
dragging = FALSE;
if (lbtn_dwn)
{
button = floatbar_get_button(floatbar, pos_x, pos_y);
if (button)
button_hit(button);
lbtn_dwn = FALSE;
}
break;
case WM_MOUSEMOVE:
KillTimer(hWnd, TIMER_HIDE);
pos_x = lParam & 0xffff;
pos_y = (lParam >> 16) & 0xffff;
if (!floatbar->shown)
floatbar_animation(floatbar, TRUE);
if (dragging)
{
floatbar->rect.left = floatbar->rect.left + (lParam & 0xffff) - btn_dwn_x;
if (floatbar->rect.left < 0)
floatbar->rect.left = 0;
else if (floatbar->rect.left > xScreen - floatbar->width)
floatbar->rect.left = xScreen - floatbar->width;
MoveWindow(hWnd, floatbar->rect.left, floatbar->rect.top, floatbar->width,
floatbar->height, TRUE);
}
else
{
int i;
for (i = 0; i < BTN_MAX; i++)
floatbar->buttons[i]->active = FALSE;
button = floatbar_get_button(floatbar, pos_x, pos_y);
if (button)
button->active = TRUE;
InvalidateRect(hWnd, NULL, FALSE);
UpdateWindow(hWnd);
}
TrackMouseEvent(&tme);
break;
case WM_CAPTURECHANGED:
dragging = FALSE;
break;
case WM_MOUSELEAVE:
{
int i;
for (i = 0; i < BTN_MAX; i++)
floatbar->buttons[i]->active = FALSE;
InvalidateRect(hWnd, NULL, FALSE);
UpdateWindow(hWnd);
SetTimer(hWnd, TIMER_HIDE, 3000, NULL);
break;
}
case WM_TIMER:
switch (wParam)
{
case TIMER_HIDE:
{
KillTimer(hWnd, TIMER_HIDE);
if (!floatbar->locked)
floatbar_animation(floatbar, FALSE);
break;
}
case TIMER_ANIMAT_SHOW:
{
static int y = 0;
MoveWindow(floatbar->hwnd, floatbar->rect.left, (y++ - floatbar->height),
floatbar->width, floatbar->height, TRUE);
if (y == floatbar->height)
{
y = 0;
KillTimer(hWnd, wParam);
}
break;
}
case TIMER_ANIMAT_HIDE:
{
static int y = 0;
MoveWindow(floatbar->hwnd, floatbar->rect.left, -y++, floatbar->width,
floatbar->height, TRUE);
if (y == floatbar->height)
{
y = 0;
KillTimer(hWnd, wParam);
}
break;
}
default:
break;
}
break;
case WM_DESTROY:
DeleteDC(floatbar->hdcmem);
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
static FloatBar* floatbar_create(wfContext* wfc)
{
FloatBar* floatbar;
floatbar = (FloatBar*)malloc(sizeof(FloatBar));
if (!floatbar)
return NULL;
floatbar->locked = FALSE;
floatbar->shown = TRUE;
floatbar->hwnd = NULL;
floatbar->parent = wfc->hwnd;
floatbar->wfc = wfc;
floatbar->hdcmem = NULL;
floatbar->background = (HBITMAP)LoadImage(wfc->hInstance,
MAKEINTRESOURCE(IDB_BACKGROUND), IMAGE_BITMAP, BACKGROUND_W, BACKGROUND_H,
LR_DEFAULTCOLOR);
floatbar->buttons[0] = floatbar_create_button(floatbar, BUTTON_MINIMIZE,
IDB_MINIMIZE, IDB_MINIMIZE_ACT, MINIMIZE_X, BUTTON_Y, BUTTON_HEIGHT,
BUTTON_WIDTH);
floatbar->buttons[1] = floatbar_create_button(floatbar, BUTTON_RESTORE,
IDB_RESTORE, IDB_RESTORE_ACT, RESTORE_X, BUTTON_Y, BUTTON_HEIGHT, BUTTON_WIDTH);
floatbar->buttons[2] = floatbar_create_button(floatbar, BUTTON_CLOSE, IDB_CLOSE,
IDB_CLOSE_ACT, CLOSE_X, BUTTON_Y, BUTTON_HEIGHT, BUTTON_WIDTH);
floatbar->buttons[3] = floatbar_create_lock_button(floatbar, IDB_UNLOCK,
IDB_UNLOCK_ACT, IDB_LOCK, IDB_LOCK_ACT, LOCK_X, BUTTON_Y, BUTTON_HEIGHT,
BUTTON_WIDTH);
return floatbar;
}
int floatbar_hide(FloatBar* floatbar)
{
KillTimer(floatbar->hwnd, TIMER_HIDE);
MoveWindow(floatbar->hwnd, floatbar->rect.left, -floatbar->height,
floatbar->width, floatbar->height, TRUE);
return 0;
}
int floatbar_show(FloatBar* floatbar)
{
SetTimer(floatbar->hwnd, TIMER_HIDE, 3000, NULL);
MoveWindow(floatbar->hwnd, floatbar->rect.left, floatbar->rect.top,
floatbar->width, floatbar->height, TRUE);
return 0;
}
void floatbar_window_create(wfContext* wfc)
{
WNDCLASSEX wnd_cls;
HWND barWnd;
int x = (GetSystemMetrics(SM_CXSCREEN) - BACKGROUND_W) / 2;
wnd_cls.cbSize = sizeof(WNDCLASSEX);
wnd_cls.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wnd_cls.lpfnWndProc = floatbar_proc;
wnd_cls.cbClsExtra = 0;
wnd_cls.cbWndExtra = 0;
wnd_cls.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wnd_cls.hCursor = LoadCursor(wfc->hInstance, IDC_ARROW);
wnd_cls.hbrBackground = NULL;
wnd_cls.lpszMenuName = NULL;
wnd_cls.lpszClassName = L"floatbar";
wnd_cls.hInstance = wfc->hInstance;
wnd_cls.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
RegisterClassEx(&wnd_cls);
wfc->floatbar = floatbar_create(wfc);
barWnd = CreateWindowEx(WS_EX_TOPMOST, L"floatbar", L"floatbar", WS_CHILD, x, 0,
BACKGROUND_W, BACKGROUND_H, wfc->hwnd, NULL, wfc->hInstance, wfc->floatbar);
if (barWnd == NULL)
return;
ShowWindow(barWnd, SW_SHOWNORMAL);
}