void
ColorMapEditor::paintGL ()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (colors_need_update) {
update_colors();
colors_need_update = false;
}
//draw scale
int scale_delta = 8;
//while( scale_delta / 255.0 * height() * zoom < 20 ) scale_delta++;
glColor4f(0,0,0,0.5);
for(size_t i = 0; i < resolution; i += scale_delta) {
glBegin(GL_LINES);
glVertex2f( i/(float)resolution , 0);
glVertex2f( i/(float)resolution , 1);
glEnd();
}
glEnable(GL_LINE_SMOOTH);
//draw function
double res = resolution;
glEnable(GL_TEXTURE_1D);
glBindTexture(GL_TEXTURE_1D,color_tex);
glBegin(GL_QUADS);
glTexCoord1d( 0.5 / (res-1.0) );
glVertex2d ( 0, 0 );
glVertex2d ( 0, 1 );
glTexCoord1d( 0.5 / (res-1.0) + (res-1.0)/res );
glVertex2d ( 1, 1 );
glVertex2d ( 1, 0 );
glEnd();
glDisable(GL_TEXTURE_1D);
glColor3f(0,0,0);
glLineWidth(2);
draw_channel(channel);
}
LRESULT track_bar::on_message(HWND wnd,UINT msg,WPARAM wp,LPARAM lp)
{
switch(msg)
{
case WM_NCCREATE:
break;
case WM_CREATE:
{
if (IsThemeActive() && IsAppThemed())
{
m_theme = OpenThemeData(wnd, L"Trackbar");
}
}
break;
case WM_THEMECHANGED:
{
{
if (m_theme)
{
CloseThemeData(m_theme);
m_theme=0;
}
if (IsThemeActive() && IsAppThemed())
m_theme = OpenThemeData(wnd, L"Trackbar");
}
}
break;
case WM_DESTROY:
{
if (m_hook_registered)
{
message_hook_manager::deregister_hook(message_hook_manager::type_keyboard, this);
m_hook_registered=false;
}
{
if (m_theme) CloseThemeData(m_theme);
m_theme=0;
}
}
break;
case WM_NCDESTROY:
break;
case WM_SIZE:
RedrawWindow(wnd, 0, 0, RDW_INVALIDATE|RDW_ERASE);
break;
case WM_MOUSEMOVE:
{
POINT pt = {GET_X_LPARAM(lp), GET_Y_LPARAM(lp)};
if (m_dragging)
{
if (!m_last_mousemove.m_valid || wp != m_last_mousemove.m_wp || lp != m_last_mousemove.m_lp)
{
if (get_enabled())
{
unsigned pos = calculate_position_from_point(pt);
set_position_internal(pos);
if (m_wnd_tooltip && m_host)
{
POINT pts = pt;
ClientToScreen(wnd, &pts);
track_bar_string temp;
m_host->get_tooltip_text(pos, temp);
update_tooltip(pts, temp.data());
}
if (m_host)
m_host->on_position_change(pos, true);
}
}
m_last_mousemove.m_valid = true;
m_last_mousemove.m_wp = wp;
m_last_mousemove.m_lp = lp;
}
else
{
update_hot_status(pt);
}
}
break;
case WM_ENABLE:
{
RECT rc;
get_thumb_rect(&rc);
InvalidateRect(wnd, &rc, TRUE);
}
break;
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_XBUTTONDOWN:
{
if (get_enabled() && get_auto_focus() && GetFocus() != wnd)
SetFocus(wnd);
if (m_dragging)
{
destroy_tooltip();
if (GetCapture() == wnd)
ReleaseCapture();
message_hook_manager::deregister_hook(message_hook_manager::type_keyboard, this);
m_hook_registered=false;
//SetFocus(IsWindow(m_wnd_prev) ? m_wnd_prev : uFindParentPopup(wnd));
m_dragging = false;
set_position_internal(m_position);
}
}
break;
case WM_LBUTTONDOWN:
{
if (get_enabled())
{
if (get_auto_focus() && GetFocus() != wnd)
SetFocus(wnd);
POINT pt;
pt.x = GET_X_LPARAM(lp);
pt.y = GET_Y_LPARAM(lp);
RECT rc_client;
GetClientRect(wnd, &rc_client);
if (PtInRect(&rc_client, pt))
{
m_dragging = true;
SetCapture(wnd);
//SetFocus(wnd);
message_hook_manager::register_hook(message_hook_manager::type_keyboard, this);
m_hook_registered=true;
unsigned pos = calculate_position_from_point(pt);
set_position_internal(pos);
POINT pts = pt;
ClientToScreen(wnd, &pts);
if (m_show_tooltips && m_host)
{
track_bar_string temp;
m_host->get_tooltip_text(pos, temp);
create_tooltip(temp.data(), pts);
}
}
m_last_mousemove.m_valid = false;
}
}
return 0;
case WM_LBUTTONUP:
{
if (m_dragging)
{
destroy_tooltip();
if (GetCapture() == wnd)
ReleaseCapture();
m_dragging = false;
if (get_enabled())
{
POINT pt;
pt.x = GET_X_LPARAM(lp);
pt.y = GET_Y_LPARAM(lp);
unsigned pos = calculate_position_from_point(pt);
set_position(pos);
}
//SetFocus(IsWindow(m_wnd_prev) ? m_wnd_prev : uFindParentPopup(wnd));
message_hook_manager::deregister_hook(message_hook_manager::type_keyboard, this);
m_hook_registered = false;
if (m_host)
m_host->on_position_change(m_display_position, false);
m_last_mousemove.m_valid = false;
}
}
return 0;
case WM_KEYDOWN:
case WM_KEYUP:
{
if ((wp == VK_ESCAPE || wp == VK_RETURN) && m_host && m_host->on_key(wp, lp))
return 0;
if ( !(lp & (1<<31)) && (wp == VK_LEFT || wp == VK_DOWN || wp == VK_RIGHT || wp == VK_UP))
{
bool down = (wp == VK_LEFT || wp == VK_UP) == false;//!get_direction();
unsigned newpos = m_position;
if (down && m_step > m_position)
newpos = 0;
else if (!down && m_step + m_position > m_range)
newpos = m_range;
else
newpos += down ? -(int)m_step : m_step;
if (newpos != m_position)
{
set_position(newpos);
if (m_host)
m_host->on_position_change(m_position, false);
}
}
if ( !(lp & (1<<31)) && (wp == VK_HOME || wp == VK_END))
{
bool down = (wp == VK_END) == false;//!get_direction();
unsigned newpos = m_position;
if (down) newpos = m_range;
else newpos = 0;
if (newpos != m_position)
{
set_position(newpos);
if (m_host)
m_host->on_position_change(m_position, false);
}
}
}
break;
case WM_MOUSEWHEEL:
{
UINT ucNumLines=3; // 3 is the default
SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &ucNumLines, 0);
unsigned short fwKeys = GET_KEYSTATE_WPARAM(wp);
short zDelta = GET_WHEEL_DELTA_WPARAM(wp);
int xPos = GET_X_LPARAM(lp);
int yPos = GET_Y_LPARAM(lp);
if (ucNumLines == WHEEL_PAGESCROLL)
ucNumLines = 3;
int delta = MulDiv(m_step*zDelta, ucNumLines, WHEEL_DELTA);
bool down = delta < 0;
//if (get_direction()) down = down == false;
if (!get_orientation()) down = down == false;
if (m_mouse_wheel_reversed)
down = down == false;
unsigned offset = abs(delta);
unsigned newpos = m_position;
if (down && offset > m_position)
newpos = 0;
else if (!down && offset + m_position > m_range)
newpos = m_range;
else
newpos += down ? -(int)offset : offset;
if (newpos != m_position)
{
set_position(newpos);
if (m_host)
m_host->on_position_change(m_position, false);
}
}
return 0;
#if 0
case WM_KEYDOWN:
if (wp == VK_ESCAPE)
{
destroy_tooltip();
if (GetCapture() == wnd)
ReleaseCapture();
SetFocus(IsWindow(m_wnd_prev) ? m_wnd_prev : uFindParentPopup(wnd));
m_dragging = false;
set_position_internal(m_position);
return 0;
}
break;
case WM_SETFOCUS:
m_wnd_prev = (HWND)wp;
break;
#endif
case WM_MOVE:
RedrawWindow(wnd, NULL, NULL, RDW_ERASE|RDW_INVALIDATE);
break;
case WM_ERASEBKGND:
return FALSE;
case WM_PAINT:
{
RECT rc_client;
GetClientRect(wnd, &rc_client);
PAINTSTRUCT ps;
HDC dc = BeginPaint(wnd, &ps);
RECT rc_thumb;
get_thumb_rect(&rc_thumb);
RECT rc_track; //channel
get_channel_rect(&rc_track);
//Offscreen rendering to eliminate flicker
HDC dc_mem = CreateCompatibleDC(dc);
//Create a rect same size of update rect
HBITMAP bm_mem = CreateCompatibleBitmap(dc, rc_client.right, rc_client.bottom);
HBITMAP bm_old = (HBITMAP)SelectObject(dc_mem, bm_mem);
//we should always be erasing first, so shouldn't be needed
BitBlt(dc_mem, 0, 0, rc_client.right, rc_client.bottom, dc, 0, 0, SRCCOPY);
if (ps.fErase)
{
draw_background(dc_mem, &rc_client);
}
draw_channel(dc_mem, &rc_track);
draw_thumb(dc_mem, &rc_thumb);
BitBlt(dc, 0, 0, rc_client.right, rc_client.bottom, dc_mem, 0, 0, SRCCOPY);
SelectObject(dc_mem, bm_old);
DeleteObject(bm_mem);
DeleteDC(dc_mem);
EndPaint(wnd, &ps);
}
return 0;
}
return DefWindowProc(wnd, msg, wp, lp);
}
