// FbWinFrame.cc for Fluxbox Window Manager // Copyright (c) 2003 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. #include "FbWinFrame.hh" #include "FbTk/ImageControl.hh" #include "FbTk/EventManager.hh" #include "FbTk/App.hh" #include "FbTk/SimpleCommand.hh" #include "FbTk/Compose.hh" #include "FbTk/Transparent.hh" #include "FbTk/CompareEqual.hh" #include "FbTk/StringUtil.hh" #include "FbTk/TextUtils.hh" #include "FbWinFrameTheme.hh" #include "Screen.hh" #include "FocusableTheme.hh" #include "IconButton.hh" #include #include using std::mem_fun; using std::string; FbWinFrame::FbWinFrame(BScreen &screen, FocusableTheme &theme, FbTk::ImageControl &imgctrl, FbTk::XLayer &layer, int x, int y, unsigned int width, unsigned int height): m_screen(screen), m_theme(theme), m_imagectrl(imgctrl), m_window(theme->screenNum(), x, y, width, height, ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | EnterWindowMask | LeaveWindowMask, true), m_layeritem(window(), layer), m_titlebar(m_window, 0, 0, 100, 16, ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask | LeaveWindowMask), m_tab_container(m_titlebar), m_label(m_titlebar, m_theme->font(), ""), m_handle(m_window, 0, 0, 100, 5, ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask | LeaveWindowMask), m_grip_right(m_handle, 0, 0, 10, 4, ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask | LeaveWindowMask), m_grip_left(m_handle, 0, 0, 10, 4, ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask | LeaveWindowMask), m_clientarea(m_window, 0, 0, 100, 100, ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask | LeaveWindowMask), m_bevel(1), m_use_titlebar(true), m_use_tabs(true), m_use_handle(true), m_visible(false), m_button_pm(0), m_tabmode(screen.getDefaultInternalTabs()?INTERNAL:EXTERNAL), m_active_orig_client_bw(0), m_need_render(true), m_button_size(1), m_height_before_shade(1), m_focused_alpha(AlphaAcc(*theme.focusedTheme(), &FbWinFrameTheme::alpha)), m_unfocused_alpha(AlphaAcc(*theme.unfocusedTheme(), &FbWinFrameTheme::alpha)), m_shape(m_window, theme->shapePlace()), m_disable_themeshape(false) { init(); } FbWinFrame::~FbWinFrame() { removeEventHandler(); removeAllButtons(); } bool FbWinFrame::setTabMode(TabMode tabmode) { if (m_tabmode == tabmode) return false; bool ret = true; // setting tabmode to notset forces it through when // something is likely to change if (tabmode == NOTSET) tabmode = m_tabmode; m_tabmode = tabmode; // reparent tab container if (tabmode == EXTERNAL) { m_label.show(); m_tab_container.setBorderWidth(m_window.borderWidth()); m_tab_container.setEventMask( ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask | LeaveWindowMask); alignTabs(); // TODO: tab position if (m_use_tabs && m_visible) m_tab_container.show(); else { ret = false; m_tab_container.hide(); } } else { m_tab_container.setUpdateLock(true); m_tab_container.setAlignment(FbTk::Container::RELATIVE); m_tab_container.setOrientation(FbTk::ROT0); if (m_tab_container.parent()->window() == m_screen.rootWindow().window()) { m_layeritem.removeWindow(m_tab_container); m_tab_container.hide(); m_tab_container.reparent(m_titlebar, m_label.x(), m_label.y()); m_tab_container.invalidateBackground(); m_tab_container.resize(m_label.width(), m_label.height()); m_tab_container.raise(); } m_tab_container.setBorderWidth(0); m_tab_container.setMaxTotalSize(0); m_tab_container.setUpdateLock(false); m_tab_container.setMaxSizePerClient(0); renderTabContainer(); applyTabContainer(); m_tab_container.clear(); m_tab_container.raise(); m_tab_container.show(); if (!m_use_tabs) ret = false; m_label.hide(); // reconfigure(); } return true; } void FbWinFrame::hide() { m_window.hide(); if (m_tabmode == EXTERNAL && m_use_tabs) m_tab_container.hide(); m_visible = false; } void FbWinFrame::show() { m_visible = true; if (m_need_render) { renderAll(); applyAll(); clearAll(); } if (m_tabmode == EXTERNAL && m_use_tabs) m_tab_container.show(); m_window.showSubwindows(); m_window.show(); } /** Toggle shade state, and resize window */ void FbWinFrame::shade() { if (!m_use_titlebar) return; // toggle shade m_state.shaded = !m_state.shaded; if (m_state.shaded) { // i.e. should be shaded now m_height_before_shade = m_window.height(); m_window.resize(m_window.width(), m_titlebar.height()); alignTabs(); // need to update our shape m_shape.update(); } else { // should be unshaded m_window.resize(m_window.width(), m_height_before_shade); reconfigure(); } } void FbWinFrame::move(int x, int y) { moveResize(x, y, 0, 0, true, false); } void FbWinFrame::resize(unsigned int width, unsigned int height) { moveResize(0, 0, width, height, false, true); } // need an atomic moveresize where possible void FbWinFrame::moveResizeForClient(int x, int y, unsigned int width, unsigned int height, int win_gravity, unsigned int client_bw, bool move, bool resize) { // total height for frame if (resize) // these fns check if the elements are "on" height += titlebarHeight() + handleHeight(); gravityTranslate(x, y, win_gravity, client_bw, false); setActiveGravity(win_gravity, client_bw); moveResize(x, y, width, height, move, resize); } void FbWinFrame::resizeForClient(unsigned int width, unsigned int height, int win_gravity, unsigned int client_bw) { moveResizeForClient(0, 0, width, height, win_gravity, client_bw, false, true); } void FbWinFrame::moveResize(int x, int y, unsigned int width, unsigned int height, bool move, bool resize) { if (move && x == window().x() && y == window().y()) move = false; if (resize && (m_state.shaded || (width == FbWinFrame::width() && height == FbWinFrame::height()))) resize = false; if (!move && !resize) return; if (move && resize) { m_window.moveResize(x, y, width, height); notifyMoved(false); // will reconfigure } else if (move) { m_window.move(x, y); // this stuff will be caught by reconfigure if resized notifyMoved(true); } else { m_window.resize(width, height); } if (move || (resize && m_screen.getTabPlacement() != TOPLEFT)) alignTabs(); if (resize) { if (m_tabmode == EXTERNAL) { switch(m_screen.getTabPlacement()) { case LEFTTOP: case RIGHTTOP: case LEFTBOTTOM: case RIGHTBOTTOM: m_tab_container.setMaxTotalSize(height); break; default: m_tab_container.setMaxTotalSize(width); break; } } reconfigure(); } } void FbWinFrame::quietMoveResize(int x, int y, unsigned int width, unsigned int height) { m_window.moveResize(x, y, width, height); if (m_tabmode == EXTERNAL) { switch(m_screen.getTabPlacement()) { case LEFTTOP: case RIGHTTOP: case LEFTBOTTOM: case RIGHTBOTTOM: m_tab_container.setMaxTotalSize(height); break; default: m_tab_container.setMaxTotalSize(width); break; } alignTabs(); } } void FbWinFrame::alignTabs() { if (m_tabmode != EXTERNAL) return; FbTk::Orientation orig_orient = m_tab_container.orientation(); unsigned int orig_tabwidth = m_tab_container.maxWidthPerClient(); if (orig_tabwidth != m_screen.getTabWidth()) m_tab_container.setMaxSizePerClient(m_screen.getTabWidth()); int tabx = 0, taby = 0; switch (m_screen.getTabPlacement()) { case TOPLEFT: if (orig_orient != FbTk::ROT0) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT0); m_tab_container.setAlignment(FbTk::Container::LEFT); m_tab_container.setMaxTotalSize(m_window.width()); tabx = x(); taby = y() - yOffset(); break; case TOPRIGHT: if (orig_orient != FbTk::ROT0) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT0); m_tab_container.setAlignment(FbTk::Container::RIGHT); m_tab_container.setMaxTotalSize(m_window.width()); tabx = x() + width() - m_tab_container.width(); taby = y() - yOffset(); break; case LEFTTOP: if (orig_orient != FbTk::ROT270) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT270); m_tab_container.setAlignment(FbTk::Container::RIGHT); m_tab_container.setMaxTotalSize(m_window.height()); tabx = x() - xOffset(); taby = y(); break; case LEFTBOTTOM: if (orig_orient != FbTk::ROT270) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT270); m_tab_container.setAlignment(FbTk::Container::LEFT); m_tab_container.setMaxTotalSize(m_window.height()); tabx = x() - xOffset(); taby = y() + height() - m_tab_container.height(); break; case RIGHTTOP: if (orig_orient != FbTk::ROT90) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT90); m_tab_container.setAlignment(FbTk::Container::LEFT); m_tab_container.setMaxTotalSize(m_window.height()); tabx = x() + width() + m_window.borderWidth(); taby = y(); break; case RIGHTBOTTOM: if (orig_orient != FbTk::ROT90) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT90); m_tab_container.setAlignment(FbTk::Container::RIGHT); m_tab_container.setMaxTotalSize(m_window.height()); tabx = x() + width() + m_window.borderWidth(); taby = y() + height() - m_tab_container.height(); break; case BOTTOMLEFT: if (orig_orient != FbTk::ROT0) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT0); m_tab_container.setAlignment(FbTk::Container::LEFT); m_tab_container.setMaxTotalSize(m_window.width()); tabx = x(); taby = y() + height() + m_window.borderWidth(); break; case BOTTOMRIGHT: if (orig_orient != FbTk::ROT0) m_tab_container.hide(); m_tab_container.setOrientation(FbTk::ROT0); m_tab_container.setAlignment(FbTk::Container::RIGHT); m_tab_container.setMaxTotalSize(m_window.width()); tabx = x() + width() - m_tab_container.width(); taby = y() + height() + m_window.borderWidth(); break; } unsigned int w = m_window.width(), h = m_window.height(); translateSize(m_tab_container.orientation(), w, h); if (m_tab_container.orientation() != orig_orient || m_tab_container.maxWidthPerClient() != orig_tabwidth) { renderTabContainer(); if (m_visible && m_use_tabs) { applyTabContainer(); m_tab_container.clear(); m_tab_container.show(); } } if (m_tab_container.parent()->window() != m_screen.rootWindow().window()) { m_tab_container.reparent(m_screen.rootWindow(), tabx, taby); m_label.clear(); m_layeritem.addWindow(m_tab_container); } else { m_tab_container.move(tabx, taby); } } void FbWinFrame::notifyMoved(bool clear) { // not important if no alpha... unsigned char alpha = getAlpha(m_state.focused); if (alpha == 255) return; if ((m_tabmode == EXTERNAL && m_use_tabs) || m_use_titlebar) { m_tab_container.parentMoved(); m_tab_container.for_each(mem_fun(&FbTk::Button::parentMoved)); } if (m_use_titlebar) { if (m_tabmode != INTERNAL) m_label.parentMoved(); m_titlebar.parentMoved(); for_each(m_buttons_left.begin(), m_buttons_left.end(), mem_fun(&FbTk::Button::parentMoved)); for_each(m_buttons_right.begin(), m_buttons_right.end(), mem_fun(&FbTk::Button::parentMoved)); } if (m_use_handle) { m_handle.parentMoved(); m_grip_left.parentMoved(); m_grip_right.parentMoved(); } if (clear && (m_use_handle || m_use_titlebar)) { clearAll(); } else if (clear && m_tabmode == EXTERNAL && m_use_tabs) m_tab_container.clear(); } void FbWinFrame::clearAll() { if (m_use_titlebar) { redrawTitlebar(); for_each(m_buttons_left.begin(), m_buttons_left.end(), mem_fun(&FbTk::Button::clear)); for_each(m_buttons_right.begin(), m_buttons_right.end(), mem_fun(&FbTk::Button::clear)); } else if (m_tabmode == EXTERNAL && m_use_tabs) m_tab_container.clear(); if (m_use_handle) { m_handle.clear(); m_grip_left.clear(); m_grip_right.clear(); } } void FbWinFrame::setFocus(bool newvalue) { if (m_state.focused == newvalue) return; m_state.focused = newvalue; if (FbTk::Transparent::haveRender() && getAlpha(true) != getAlpha(false)) { // different alpha for focused and unfocused unsigned char alpha = getAlpha(m_state.focused); if (FbTk::Transparent::haveComposite()) { m_tab_container.setAlpha(255); m_window.setOpaque(alpha); } else { m_tab_container.setAlpha(alpha); m_window.setOpaque(255); } } setBorderWidth(); applyAll(); clearAll(); } void FbWinFrame::setFullscreen(bool newvalue) { if (newvalue == m_state.fullscreen) return; m_state.fullscreen = newvalue; applyDecorations(); } void FbWinFrame::setAlpha(bool focused, unsigned char alpha) { if (focused) m_focused_alpha = alpha; else m_unfocused_alpha = alpha; if (m_state.focused == focused) applyAlpha(); } void FbWinFrame::applyAlpha() { unsigned char alpha = getAlpha(m_state.focused); if (FbTk::Transparent::haveComposite()) m_window.setOpaque(alpha); else { // don't need to setAlpha, since apply updates them anyway applyAll(); clearAll(); } } unsigned char FbWinFrame::getAlpha(bool focused) const { return focused ? m_focused_alpha : m_unfocused_alpha; } void FbWinFrame::setDefaultAlpha() { if (getUseDefaultAlpha()) return; m_focused_alpha.restoreDefault(); m_unfocused_alpha.restoreDefault(); applyAlpha(); } bool FbWinFrame::getUseDefaultAlpha() const { return m_focused_alpha.isDefault() && m_unfocused_alpha.isDefault(); } void FbWinFrame::addLeftButton(FbTk::Button *btn) { if (btn == 0) // valid button? return; applyButton(*btn); // setup theme and other stuff m_buttons_left.push_back(btn); } void FbWinFrame::addRightButton(FbTk::Button *btn) { if (btn == 0) // valid button? return; applyButton(*btn); // setup theme and other stuff m_buttons_right.push_back(btn); } void FbWinFrame::removeAllButtons() { // destroy left side while (!m_buttons_left.empty()) { delete m_buttons_left.back(); m_buttons_left.pop_back(); } // destroy right side while (!m_buttons_right.empty()) { delete m_buttons_right.back(); m_buttons_right.pop_back(); } } void FbWinFrame::createTab(FbTk::Button &button) { button.show(); button.setEventMask(ExposureMask | ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | EnterWindowMask); FbTk::EventManager::instance()->add(button, button.window()); m_tab_container.insertItem(&button); } void FbWinFrame::removeTab(IconButton *btn) { if (m_tab_container.removeItem(btn)) delete btn; } void FbWinFrame::moveLabelButtonLeft(FbTk::TextButton &btn) { m_tab_container.moveItem(&btn, -1); } void FbWinFrame::moveLabelButtonRight(FbTk::TextButton &btn) { m_tab_container.moveItem(&btn, +1); } void FbWinFrame::moveLabelButtonTo(FbTk::TextButton &btn, int x, int y) { m_tab_container.moveItemTo(&btn, x, y); } void FbWinFrame::moveLabelButtonLeftOf(FbTk::TextButton &btn, const FbTk::TextButton &dest) { int dest_pos = m_tab_container.find(&dest); int cur_pos = m_tab_container.find(&btn); if (dest_pos < 0 || cur_pos < 0) return; int movement=dest_pos - cur_pos; if(movement>0) movement-=1; // else // movement-=1; m_tab_container.moveItem(&btn, movement); } void FbWinFrame::moveLabelButtonRightOf(FbTk::TextButton &btn, const FbTk::TextButton &dest) { int dest_pos = m_tab_container.find(&dest); int cur_pos = m_tab_container.find(&btn); if (dest_pos < 0 || cur_pos < 0 ) return; int movement=dest_pos - cur_pos; if(movement<0) movement+=1; m_tab_container.moveItem(&btn, movement); } void FbWinFrame::setLabelButtonFocus(IconButton &btn) { if (btn.parent() != &m_tab_container) return; m_label.setText(btn.text()); } void FbWinFrame::setClientWindow(FbTk::FbWindow &win) { win.setBorderWidth(0); XChangeSaveSet(win.display(), win.window(), SetModeInsert); m_window.setEventMask(NoEventMask); // we need to mask this so we don't get unmap event win.setEventMask(NoEventMask); win.reparent(m_window, 0, clientArea().y()); // remask window so we get events win.setEventMask(PropertyChangeMask | StructureNotifyMask | FocusChangeMask | KeyPressMask); m_window.setEventMask(ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | EnterWindowMask | LeaveWindowMask | SubstructureRedirectMask); XFlush(win.display()); XSetWindowAttributes attrib_set; attrib_set.event_mask = PropertyChangeMask | StructureNotifyMask | FocusChangeMask; attrib_set.do_not_propagate_mask = ButtonPressMask | ButtonReleaseMask | ButtonMotionMask; XChangeWindowAttributes(win.display(), win.window(), CWEventMask|CWDontPropagate, &attrib_set); m_clientarea.raise(); if (isVisible()) win.show(); win.raise(); m_window.showSubwindows(); } bool FbWinFrame::hideTabs() { if (m_tabmode == INTERNAL || !m_use_tabs) { m_use_tabs = false; return false; } m_use_tabs = false; m_tab_container.hide(); return true; } bool FbWinFrame::showTabs() { if (m_tabmode == INTERNAL || m_use_tabs) { m_use_tabs = true; return false; // nothing changed } m_use_tabs = true; if (m_visible) m_tab_container.show(); return true; } bool FbWinFrame::hideTitlebar() { if (!m_use_titlebar) return false; m_titlebar.hide(); m_use_titlebar = false; if (static_cast(m_window.height() - m_titlebar.height() - m_titlebar.borderWidth()) <= 0) { m_window.resize(m_window.width(), 1); } else { // only take away one borderwidth (as the other border is still the "top" border) m_window.resize(m_window.width(), m_window.height() - m_titlebar.height() - m_titlebar.borderWidth()); } return true; } bool FbWinFrame::showTitlebar() { if (m_use_titlebar) return false; m_titlebar.show(); m_use_titlebar = true; // only add one borderwidth (as the other border is still the "top" border) m_window.resize(m_window.width(), m_window.height() + m_titlebar.height() + m_titlebar.borderWidth()); return true; } bool FbWinFrame::hideHandle() { if (!m_use_handle) return false; m_handle.hide(); m_grip_left.hide(); m_grip_right.hide(); m_use_handle = false; if (static_cast(m_window.height() - m_handle.height() - m_handle.borderWidth()) <= 0) { m_window.resize(m_window.width(), 1); } else { // only take away one borderwidth (as the other border is still the "top" border) m_window.resize(m_window.width(), m_window.height() - m_handle.height() - m_handle.borderWidth()); } return true; } bool FbWinFrame::showHandle() { if (m_use_handle || theme()->handleWidth() == 0) return false; m_use_handle = true; // weren't previously rendered... renderHandles(); applyHandles(); m_handle.show(); m_handle.showSubwindows(); // shows grips m_window.resize(m_window.width(), m_window.height() + m_handle.height() + m_handle.borderWidth()); return true; } /** Set new event handler for the frame's windows */ void FbWinFrame::setEventHandler(FbTk::EventHandler &evh) { FbTk::EventManager &evm = *FbTk::EventManager::instance(); evm.add(evh, m_tab_container); evm.add(evh, m_label); evm.add(evh, m_titlebar); evm.add(evh, m_handle); evm.add(evh, m_grip_right); evm.add(evh, m_grip_left); evm.add(evh, m_window); evm.add(evh, m_clientarea); } /** remove event handler from windows */ void FbWinFrame::removeEventHandler() { FbTk::EventManager &evm = *FbTk::EventManager::instance(); evm.remove(m_tab_container); evm.remove(m_label); evm.remove(m_titlebar); evm.remove(m_handle); evm.remove(m_grip_right); evm.remove(m_grip_left); evm.remove(m_window); evm.remove(m_clientarea); } void FbWinFrame::exposeEvent(XExposeEvent &event) { if (m_titlebar == event.window) { m_titlebar.clearArea(event.x, event.y, event.width, event.height); } else if (m_tab_container == event.window) { m_tab_container.clearArea(event.x, event.y, event.width, event.height); } else if (m_label == event.window) { m_label.clearArea(event.x, event.y, event.width, event.height); } else if (m_handle == event.window) { m_handle.clearArea(event.x, event.y, event.width, event.height); } else if (m_grip_left == event.window) { m_grip_left.clearArea(event.x, event.y, event.width, event.height); } else if (m_grip_right == event.window) { m_grip_right.clearArea(event.x, event.y, event.width, event.height); } else { if (m_tab_container.tryExposeEvent(event)) return; // create compare function // that we should use with find_if FbTk::CompareEqual_base compare(&FbTk::FbWindow::window, event.window); ButtonList::iterator it = find_if(m_buttons_left.begin(), m_buttons_left.end(), compare); if (it != m_buttons_left.end()) { (*it)->exposeEvent(event); return; } it = find_if(m_buttons_right.begin(), m_buttons_right.end(), compare); if (it != m_buttons_right.end()) (*it)->exposeEvent(event); } } void FbWinFrame::handleEvent(XEvent &event) { if (event.type == ConfigureNotify && event.xconfigure.window == window().window()) configureNotifyEvent(event.xconfigure); } void FbWinFrame::configureNotifyEvent(XConfigureEvent &event) { resize(event.width, event.height); } void FbWinFrame::reconfigure() { if (m_tab_container.empty()) return; int grav_x=0, grav_y=0; // negate gravity gravityTranslate(grav_x, grav_y, -sizeHints().win_gravity, m_active_orig_client_bw, false); m_bevel = theme()->bevelWidth(); setBorderWidth(); if (useHandle() && theme()->handleWidth() != 0) showHandle(); else hideHandle(); unsigned int orig_handle_h = handle().height(); if (m_use_handle && orig_handle_h != theme()->handleWidth()) m_window.resize(m_window.width(), m_window.height() - orig_handle_h + theme()->handleWidth()); handle().resize(handle().width(), theme()->handleWidth()); gripLeft().resize(buttonHeight(), theme()->handleWidth()); gripRight().resize(gripLeft().width(), gripLeft().height()); // align titlebar and render it if (m_use_titlebar) { reconfigureTitlebar(); m_titlebar.raise(); } else m_titlebar.lower(); if (m_tabmode == EXTERNAL) { unsigned int neww, newh; switch (m_screen.getTabPlacement()) { case TOPLEFT: case TOPRIGHT: case BOTTOMLEFT: case BOTTOMRIGHT: neww = m_tab_container.width(); newh = buttonHeight(); break; default: neww = buttonHeight(); newh = m_tab_container.height(); break; } m_tab_container.resize(neww, newh); alignTabs(); } // leave client+grips alone if we're shaded (it'll get fixed when we unshade) if (!m_state.shaded) { int client_top = 0; int client_height = m_window.height(); if (m_use_titlebar) { // only one borderwidth as titlebar is really at -borderwidth int titlebar_height = m_titlebar.height() + m_titlebar.borderWidth(); client_top += titlebar_height; client_height -= titlebar_height; } // align handle and grips const int grip_height = m_handle.height(); const int grip_width = 20; //TODO const int handle_bw = static_cast(m_handle.borderWidth()); int ypos = m_window.height(); // if the handle isn't on, it's actually below the window if (m_use_handle) ypos -= grip_height + handle_bw; // we do handle settings whether on or not so that if they get toggled // then things are ok... m_handle.invalidateBackground(); m_handle.moveResize(-handle_bw, ypos, m_window.width(), grip_height); m_grip_left.invalidateBackground(); m_grip_left.moveResize(-handle_bw, -handle_bw, grip_width, grip_height); m_grip_right.invalidateBackground(); m_grip_right.moveResize(m_handle.width() - grip_width - handle_bw, -handle_bw, grip_width, grip_height); if (m_use_handle) { m_handle.raise(); client_height -= m_handle.height() + m_handle.borderWidth(); } else { m_handle.lower(); } m_clientarea.moveResize(0, client_top, m_window.width(), client_height); } gravityTranslate(grav_x, grav_y, sizeHints().win_gravity, m_active_orig_client_bw, false); // if the location changes, shift it if (grav_x != 0 || grav_y != 0) move(grav_x + x(), grav_y + y()); // render the theme if (isVisible()) { // update transparency settings if (FbTk::Transparent::haveRender()) { unsigned char alpha = getAlpha(m_state.focused); if (FbTk::Transparent::haveComposite()) { m_tab_container.setAlpha(255); m_window.setOpaque(alpha); } else { m_tab_container.setAlpha(alpha); m_window.setOpaque(255); } } renderAll(); applyAll(); clearAll(); } else { m_need_render = true; } if (m_disable_themeshape) m_shape.setPlaces(FbTk::Shape::NONE); else m_shape.setPlaces(theme()->shapePlace()); m_shape.setShapeOffsets(0, titlebarHeight()); // titlebar stuff rendered already by reconftitlebar } void FbWinFrame::setUseShape(bool value) { m_disable_themeshape = !value; if (m_disable_themeshape) m_shape.setPlaces(FbTk::Shape::NONE); else m_shape.setPlaces(theme()->shapePlace()); } void FbWinFrame::setShapingClient(FbTk::FbWindow *win, bool always_update) { m_shape.setShapeSource(win, 0, titlebarHeight(), always_update); } unsigned int FbWinFrame::buttonHeight() const { return m_titlebar.height() - m_bevel*2; } //--------------------- private area /** aligns and redraws title */ void FbWinFrame::redrawTitlebar() { if (!m_use_titlebar || m_tab_container.empty()) return; if (isVisible()) { m_tab_container.clear(); m_label.clear(); m_titlebar.clear(); } } /** Align buttons with title text window */ void FbWinFrame::reconfigureTitlebar() { if (!m_use_titlebar) return; int orig_height = m_titlebar.height(); // resize titlebar to window size with font height int title_height = theme()->font().height() == 0 ? 16 : theme()->font().height() + m_bevel*2 + 2; if (theme()->titleHeight() != 0) title_height = theme()->titleHeight(); // if the titlebar grows in size, make sure the whole window does too if (orig_height != title_height) m_window.resize(m_window.width(), m_window.height()-orig_height+title_height); m_titlebar.invalidateBackground(); m_titlebar.moveResize(-m_titlebar.borderWidth(), -m_titlebar.borderWidth(), m_window.width(), title_height); // draw left buttons first unsigned int next_x = m_bevel; unsigned int button_size = buttonHeight(); m_button_size = button_size; for (size_t i=0; i < m_buttons_left.size(); i++, next_x += button_size + m_bevel) { // probably on theme reconfigure, leave bg alone for now m_buttons_left[i]->invalidateBackground(); m_buttons_left[i]->moveResize(next_x, m_bevel, button_size, button_size); } next_x += m_bevel; // space left on titlebar between left and right buttons int space_left = m_titlebar.width() - next_x; if (!m_buttons_right.empty()) space_left -= m_buttons_right.size() * (button_size + m_bevel); space_left -= m_bevel; if (space_left <= 0) space_left = 1; m_label.invalidateBackground(); m_label.moveResize(next_x, m_bevel, space_left, button_size); m_tab_container.invalidateBackground(); if (m_tabmode == INTERNAL) m_tab_container.moveResize(next_x, m_bevel, space_left, button_size); else { if (m_use_tabs) { if (m_tab_container.orientation() == FbTk::ROT0) { m_tab_container.resize(m_tab_container.width(), button_size); } else { m_tab_container.resize(button_size, m_tab_container.height()); } } } next_x += m_label.width() + m_bevel; // finaly set new buttons to the right for (size_t i=0; i < m_buttons_right.size(); ++i, next_x += button_size + m_bevel) { m_buttons_right[i]->invalidateBackground(); m_buttons_right[i]->moveResize(next_x, m_bevel, button_size, button_size); } m_titlebar.raise(); // always on top } void FbWinFrame::renderAll() { m_need_render = false; renderTitlebar(); renderHandles(); renderTabContainer(); } void FbWinFrame::applyAll() { applyTitlebar(); applyHandles(); applyTabContainer(); } void FbWinFrame::renderTitlebar() { if (!m_use_titlebar) return; if (!isVisible()) { m_need_render = true; return; } // render pixmaps render(theme().focusedTheme()->titleTexture(), m_title_focused_color, m_title_focused_pm, m_titlebar.width(), m_titlebar.height()); render(theme().unfocusedTheme()->titleTexture(), m_title_unfocused_color, m_title_unfocused_pm, m_titlebar.width(), m_titlebar.height()); //!! TODO: don't render label if internal tabs render(theme().focusedTheme()->iconbarTheme()->texture(), m_label_focused_color, m_label_focused_pm, m_label.width(), m_label.height()); render(theme().unfocusedTheme()->iconbarTheme()->texture(), m_label_unfocused_color, m_label_unfocused_pm, m_label.width(), m_label.height()); } void FbWinFrame::renderTabContainer() { if (!isVisible()) { m_need_render = true; return; } const FbTk::Texture *tc_focused = &theme().focusedTheme()->iconbarTheme()->texture(); const FbTk::Texture *tc_unfocused = &theme().unfocusedTheme()->iconbarTheme()->texture(); if (m_tabmode == EXTERNAL && tc_focused->type() & FbTk::Texture::PARENTRELATIVE) tc_focused = &theme().focusedTheme()->titleTexture(); if (m_tabmode == EXTERNAL && tc_unfocused->type() & FbTk::Texture::PARENTRELATIVE) tc_unfocused = &theme().unfocusedTheme()->titleTexture(); render(*tc_focused, m_tabcontainer_focused_color, m_tabcontainer_focused_pm, m_tab_container.width(), m_tab_container.height(), m_tab_container.orientation()); render(*tc_unfocused, m_tabcontainer_unfocused_color, m_tabcontainer_unfocused_pm, m_tab_container.width(), m_tab_container.height(), m_tab_container.orientation()); renderButtons(); } void FbWinFrame::applyTitlebar() { // set up pixmaps for titlebar windows Pixmap label_pm = None; Pixmap title_pm = None; FbTk::Color label_color; FbTk::Color title_color; getCurrentFocusPixmap(label_pm, title_pm, label_color, title_color); unsigned char alpha = getAlpha (m_state.focused); m_titlebar.setAlpha(alpha); m_label.setAlpha(alpha); if (m_tabmode != INTERNAL) { m_label.setGC(theme()->iconbarTheme()->text().textGC()); m_label.setJustify(theme()->iconbarTheme()->text().justify()); if (label_pm != 0) m_label.setBackgroundPixmap(label_pm); else m_label.setBackgroundColor(label_color); } if (title_pm != 0) m_titlebar.setBackgroundPixmap(title_pm); else m_titlebar.setBackgroundColor(title_color); applyButtons(); } void FbWinFrame::renderHandles() { if (!m_use_handle) return; if (!isVisible()) { m_need_render = true; return; } render(theme().focusedTheme()->handleTexture(), m_handle_focused_color, m_handle_focused_pm, m_handle.width(), m_handle.height()); render(theme().unfocusedTheme()->handleTexture(), m_handle_unfocused_color, m_handle_unfocused_pm, m_handle.width(), m_handle.height()); render(theme().focusedTheme()->gripTexture(), m_grip_focused_color, m_grip_focused_pm, m_grip_left.width(), m_grip_left.height()); render(theme().unfocusedTheme()->gripTexture(), m_grip_unfocused_color, m_grip_unfocused_pm, m_grip_left.width(), m_grip_left.height()); } void FbWinFrame::applyHandles() { unsigned char alpha = getAlpha(m_state.focused); m_handle.setAlpha(alpha); m_grip_left.setAlpha(alpha); m_grip_right.setAlpha(alpha); if (m_state.focused) { if (m_handle_focused_pm) { m_handle.setBackgroundPixmap(m_handle_focused_pm); } else { m_handle.setBackgroundColor(m_handle_focused_color); } if (m_grip_focused_pm) { m_grip_left.setBackgroundPixmap(m_grip_focused_pm); m_grip_right.setBackgroundPixmap(m_grip_focused_pm); } else { m_grip_left.setBackgroundColor(m_grip_focused_color); m_grip_right.setBackgroundColor(m_grip_focused_color); } } else { if (m_handle_unfocused_pm) { m_handle.setBackgroundPixmap(m_handle_unfocused_pm); } else { m_handle.setBackgroundColor(m_handle_unfocused_color); } if (m_grip_unfocused_pm) { m_grip_left.setBackgroundPixmap(m_grip_unfocused_pm); m_grip_right.setBackgroundPixmap(m_grip_unfocused_pm); } else { m_grip_left.setBackgroundColor(m_grip_unfocused_color); m_grip_right.setBackgroundColor(m_grip_unfocused_color); } } } void FbWinFrame::renderButtons() { if (!isVisible()) { m_need_render = true; return; } render(theme().focusedTheme()->buttonTexture(), m_button_color, m_button_pm, m_button_size, m_button_size); render(theme().unfocusedTheme()->buttonTexture(), m_button_unfocused_color, m_button_unfocused_pm, m_button_size, m_button_size); render(theme()->buttonPressedTexture(), m_button_pressed_color, m_button_pressed_pm, m_button_size, m_button_size); } void FbWinFrame::applyButtons() { // setup left and right buttons for (size_t i=0; i < m_buttons_left.size(); ++i) applyButton(*m_buttons_left[i]); for (size_t i=0; i < m_buttons_right.size(); ++i) applyButton(*m_buttons_right[i]); } void FbWinFrame::init() { if (theme()->handleWidth() == 0) m_use_handle = false; m_disable_themeshape = false; m_handle.showSubwindows(); // clear pixmaps m_title_focused_pm = m_title_unfocused_pm = 0; m_label_focused_pm = m_label_unfocused_pm = 0; m_tabcontainer_focused_pm = m_tabcontainer_unfocused_pm = 0; m_handle_focused_pm = m_handle_unfocused_pm = 0; m_button_pm = m_button_unfocused_pm = m_button_pressed_pm = 0; m_grip_unfocused_pm = m_grip_focused_pm = 0; m_button_size = 26; m_clientarea.setBorderWidth(0); m_label.setBorderWidth(0); m_state.shaded = false; setTabMode(NOTSET); m_label.setEventMask(ExposureMask | ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | EnterWindowMask); showHandle(); showTitlebar(); // Note: we don't show clientarea yet setEventHandler(*this); } /** Setups upp background, pressed pixmap/color of the button to current theme */ void FbWinFrame::applyButton(FbTk::Button &btn) { if (m_button_pressed_pm) btn.setPressedPixmap(m_button_pressed_pm); else btn.setPressedColor(m_button_pressed_color); Pixmap pm = m_state.focused ? m_button_pm : m_button_unfocused_pm; btn.setAlpha(getAlpha(m_state.focused)); btn.setGC(theme()->buttonPicGC()); if (pm) btn.setBackgroundPixmap(pm); else btn.setBackgroundColor(m_state.focused ? m_button_color : m_button_unfocused_color); } void FbWinFrame::render(const FbTk::Texture &tex, FbTk::Color &col, Pixmap &pm, unsigned int w, unsigned int h, FbTk::Orientation orient) { Pixmap tmp = pm; if (!tex.usePixmap()) { pm = None; col = tex.color(); } else { pm = m_imagectrl.renderImage(w, h, tex, orient); } if (tmp) m_imagectrl.removeImage(tmp); } void FbWinFrame::getCurrentFocusPixmap(Pixmap &label_pm, Pixmap &title_pm, FbTk::Color &label_color, FbTk::Color &title_color) { if (m_state.focused) { if (m_label_focused_pm != 0) label_pm = m_label_focused_pm; else label_color = m_label_focused_color; if (m_title_focused_pm != 0) title_pm = m_title_focused_pm; else title_color = m_title_focused_color; } else { if (m_label_unfocused_pm != 0) label_pm = m_label_unfocused_pm; else label_color = m_label_unfocused_color; if (m_title_unfocused_pm != 0) title_pm = m_title_unfocused_pm; else title_color = m_title_unfocused_color; } } void FbWinFrame::applyTabContainer() { m_tab_container.setAlpha(getAlpha(m_state.focused)); // do the parent container Pixmap tabcontainer_pm = None; FbTk::Color *tabcontainer_color = NULL; if (m_state.focused) { if (m_tabcontainer_focused_pm != 0) tabcontainer_pm = m_tabcontainer_focused_pm; else tabcontainer_color = &m_tabcontainer_focused_color; } else { if (m_tabcontainer_unfocused_pm != 0) tabcontainer_pm = m_tabcontainer_unfocused_pm; else tabcontainer_color = &m_tabcontainer_unfocused_color; } if (tabcontainer_pm != 0) m_tab_container.setBackgroundPixmap(tabcontainer_pm); else m_tab_container.setBackgroundColor(*tabcontainer_color); // and the labelbuttons in it FbTk::Container::ItemList::iterator btn_it = m_tab_container.begin(); FbTk::Container::ItemList::iterator btn_it_end = m_tab_container.end(); for (; btn_it != btn_it_end; ++btn_it) { IconButton *btn = static_cast(*btn_it); btn->reconfigTheme(); } } int FbWinFrame::getDecoMaskFromString(const string &str_label) { string label = FbTk::StringUtil::toLower(str_label); if (label == "none") return DECOR_NONE; if (label == "normal") return DECOR_NORMAL; if (label == "tiny") return DECOR_TINY; if (label == "tool") return DECOR_TOOL; if (label == "border") return DECOR_BORDER; if (label == "tab") return DECOR_TAB; int mask = -1; if ((str_label.size() > 1 && str_label[0] == '0' && str_label[1] == 'x') || (str_label.size() > 0 && isdigit(str_label[0]))) mask = strtol(str_label.c_str(), NULL, 0); return mask; } bool FbWinFrame::useBorder() const { return !m_state.fullscreen && m_state.deco_mask & DECORM_BORDER; } bool FbWinFrame::useTabs() const { return !m_state.fullscreen && m_state.deco_mask & DECORM_TAB; } bool FbWinFrame::useTitlebar() const { return !m_state.fullscreen && m_state.deco_mask & DECORM_TITLEBAR; } bool FbWinFrame::useHandle() const { return !m_state.fullscreen && m_state.deco_mask & DECORM_HANDLE; } void FbWinFrame::applyDecorations() { int grav_x=0, grav_y=0; // negate gravity gravityTranslate(grav_x, grav_y, -sizeHints().win_gravity, m_active_orig_client_bw, false); bool client_move = setBorderWidth(false); // tab deocration only affects if we're external // must do before the setTabMode in case it goes // to external and is meant to be hidden if (useTabs()) client_move |= showTabs(); else client_move |= hideTabs(); // we rely on frame not doing anything if it is already shown/hidden if (useTitlebar()) { client_move |= showTitlebar(); if (m_screen.getDefaultInternalTabs()) client_move |= setTabMode(INTERNAL); else client_move |= setTabMode(EXTERNAL); } else { client_move |= hideTitlebar(); if (useTabs()) client_move |= setTabMode(EXTERNAL); } if (useHandle()) client_move |= showHandle(); else client_move |= hideHandle(); // apply gravity once more gravityTranslate(grav_x, grav_y, sizeHints().win_gravity, m_active_orig_client_bw, false); // if the location changes, shift it if (grav_x != 0 || grav_y != 0) { move(grav_x + x(), grav_y + y()); client_move = true; } reconfigure(); if (client_move) frameExtentSig().notify(); } bool FbWinFrame::setBorderWidth(bool do_move) { unsigned int border_width = theme()->border().width(); unsigned int win_bw = useBorder() ? border_width : 0; if (border_width && theme()->border().color().pixel() != window().borderColor()) { window().setBorderColor(theme()->border().color()); titlebar().setBorderColor(theme()->border().color()); handle().setBorderColor(theme()->border().color()); gripLeft().setBorderColor(theme()->border().color()); gripRight().setBorderColor(theme()->border().color()); tabcontainer().setBorderColor(theme()->border().color()); } if (border_width == handle().borderWidth() && win_bw == window().borderWidth()) return false; int grav_x=0, grav_y=0; // negate gravity if (do_move) gravityTranslate(grav_x, grav_y, -sizeHints().win_gravity, m_active_orig_client_bw, false); int bw_changes = 0; // we need to change the size of the window // if the border width changes... if (m_use_titlebar) bw_changes += static_cast(border_width - titlebar().borderWidth()); if (m_use_handle) bw_changes += static_cast(border_width - handle().borderWidth()); window().setBorderWidth(win_bw); setTabMode(NOTSET); titlebar().setBorderWidth(border_width); handle().setBorderWidth(border_width); gripLeft().setBorderWidth(border_width); gripRight().setBorderWidth(border_width); if (bw_changes != 0) resize(width(), height() + bw_changes); if (m_tabmode == EXTERNAL) alignTabs(); if (do_move) { frameExtentSig().notify(); gravityTranslate(grav_x, grav_y, sizeHints().win_gravity, m_active_orig_client_bw, false); // if the location changes, shift it if (grav_x != 0 || grav_y != 0) move(grav_x + x(), grav_y + y()); } return true; } // this function translates its arguments according to win_gravity // if win_gravity is negative, it does an inverse translation // This function should be used when a window is mapped/unmapped/pos configured void FbWinFrame::gravityTranslate(int &x, int &y, int win_gravity, unsigned int client_bw, bool move_frame) { bool invert = false; if (win_gravity < 0) { invert = true; win_gravity = -win_gravity; // make +ve } /* Ok, so, gravity says which point of the frame is put where the * corresponding bit of window would have been * Thus, x,y always refers to where top left of the WINDOW would be placed * but given that we're wrapping it in a frame, we actually place * it so that the given reference point is in the same spot as the * window's reference point would have been. * i.e. east gravity says that the centre of the right hand side of the * frame is placed where the centre of the rhs of the window would * have been if there was no frame. * Hope that makes enough sense. * * NOTE: the gravity calculations are INDEPENDENT of the client * window width/height. * * If you get confused with the calculations, draw a picture. * */ // We calculate offsets based on the gravity and frame aspects // and at the end apply those offsets +ve or -ve depending on 'invert' // These will be set to the resulting offsets for adjusting the frame position int x_offset = 0; int y_offset = 0; // These are the amount that the frame is larger than the client window // Note that the client window's x,y is offset by it's borderWidth, which // is removed by fluxbox, so the gravity needs to account for this change // these functions already check if the title/handle is used int bw_diff = client_bw - m_window.borderWidth(); int height_diff = 2*bw_diff - titlebarHeight() - handleHeight(); int width_diff = 2*bw_diff; if (win_gravity == SouthWestGravity || win_gravity == SouthGravity || win_gravity == SouthEastGravity) y_offset = height_diff; if (win_gravity == WestGravity || win_gravity == CenterGravity || win_gravity == EastGravity) y_offset = height_diff/2; if (win_gravity == NorthEastGravity || win_gravity == EastGravity || win_gravity == SouthEastGravity) x_offset = width_diff; if (win_gravity == NorthGravity || win_gravity == CenterGravity || win_gravity == SouthGravity) x_offset = width_diff/2; if (win_gravity == StaticGravity) { x_offset = bw_diff; y_offset = bw_diff - titlebarHeight(); } if (invert) { x_offset = -x_offset; y_offset = -y_offset; } x += x_offset; y += y_offset; if (move_frame && (x_offset != 0 || y_offset != 0)) { move(x, y); } } unsigned int FbWinFrame::normalHeight() const { if (m_state.shaded) return m_height_before_shade; return height(); } int FbWinFrame::widthOffset() const { if (m_tabmode != EXTERNAL || !m_use_tabs) return 0; // same height offset for top and bottom tabs switch (m_screen.getTabPlacement()) { case LEFTTOP: case RIGHTTOP: case LEFTBOTTOM: case RIGHTBOTTOM: return m_tab_container.width() + m_window.borderWidth(); break; default: // kill warning break; } return 0; } int FbWinFrame::heightOffset() const { if (m_tabmode != EXTERNAL || !m_use_tabs) return 0; switch (m_screen.getTabPlacement()) { case TOPLEFT: case TOPRIGHT: case BOTTOMLEFT: case BOTTOMRIGHT: return m_tab_container.height() + m_window.borderWidth(); break; default: // kill warning break; } return 0; } int FbWinFrame::xOffset() const { if (m_tabmode != EXTERNAL || !m_use_tabs) return 0; switch (m_screen.getTabPlacement()) { case LEFTTOP: case LEFTBOTTOM: return m_tab_container.width() + m_window.borderWidth(); break; default: // kill warning break; } return 0; } int FbWinFrame::yOffset() const { if (m_tabmode != EXTERNAL || !m_use_tabs) return 0; switch (m_screen.getTabPlacement()) { case TOPLEFT: case TOPRIGHT: return m_tab_container.height() + m_window.borderWidth(); break; default: // kill warning break; } return 0; } void FbWinFrame::applySizeHints(unsigned int &width, unsigned int &height, bool maximizing) const { height -= titlebarHeight() + handleHeight(); sizeHints().apply(width, height, maximizing); height += titlebarHeight() + handleHeight(); } void FbWinFrame::displaySize(unsigned int width, unsigned int height) const { unsigned int i, j; sizeHints().displaySize(i, j, width, height - titlebarHeight() - handleHeight()); m_screen.showGeometry(i, j); } void FbWinFrame::SizeHints::reset(const XSizeHints &sizehint) { if (sizehint.flags & PMinSize) { min_width = sizehint.min_width; min_height = sizehint.min_height; } else min_width = min_height = 1; if (sizehint.flags & PBaseSize) { base_width = sizehint.base_width; base_height = sizehint.base_height; if (!(sizehint.flags & PMinSize)) { min_width = base_width; min_height = base_height; } } else base_width = base_height = 0; if (sizehint.flags & PMaxSize) { max_width = sizehint.max_width; max_height = sizehint.max_height; } else max_width = max_height = 0; // unbounded if (sizehint.flags & PResizeInc) { width_inc = sizehint.width_inc; height_inc = sizehint.height_inc; } else width_inc = height_inc = 1; if (sizehint.flags & PAspect) { min_aspect_x = sizehint.min_aspect.x; min_aspect_y = sizehint.min_aspect.y; max_aspect_x = sizehint.max_aspect.x; max_aspect_y = sizehint.max_aspect.y; } else min_aspect_x = min_aspect_y = max_aspect_x = max_aspect_y = 0; if (sizehint.flags & PWinGravity) win_gravity = sizehint.win_gravity; else win_gravity = NorthWestGravity; // some sanity checks if (width_inc == 0) width_inc = 1; if (height_inc == 0) height_inc = 1; if (base_width > min_width) min_width = base_width; if (base_height > min_height) min_height = base_height; } /* For aspect ratios Note that its slightly simplified in that only the line gradient is given - this is because for aspect ratios, we always have the line going through the origin * Based on this formula: http://astronomy.swin.edu.au/~pbourke/geometry/pointline/ Note that a gradient from origin goes through ( grad , 1 ) */ void closestPointToAspect(unsigned int &ret_x, unsigned int &ret_y, unsigned int point_x, unsigned int point_y, unsigned int aspect_x, unsigned int aspect_y) { double u = static_cast(point_x * aspect_x + point_y * aspect_y) / static_cast(aspect_x * aspect_x + aspect_y * aspect_y); ret_x = static_cast(u * aspect_x); ret_y = static_cast(u * aspect_y); } unsigned int increaseToMultiple(unsigned int val, unsigned int inc) { return val % inc ? val + inc - (val % inc) : val; } unsigned int decreaseToMultiple(unsigned int val, unsigned int inc) { return val % inc ? val - (val % inc) : val; } /** * Changes width and height to the nearest (lower) value * that conforms to it's size hints. * * display_* give the values that would be displayed * to the user when resizing. * We use pointers for display_* since they are optional. * * See ICCCM section 4.1.2.3 */ void FbWinFrame::SizeHints::apply(unsigned int &width, unsigned int &height, bool make_fit) const { /* aspect ratios are applied exclusive to the base size * * min_aspect_x width max_aspect_x * ------------ < ------- < ------------ * min_aspect_y height max_aspect_y * * The trick is how to get back to the aspect ratio with minimal * change - do we modify x, y or both? * A: we minimise the distance between the current point, and * the target aspect ratio (consider them as x,y coordinates) * Consider that the aspect ratio is a line, and the current * w/h is a point, so we're just using the formula for * shortest distance from a point to a line! */ // make respective to base_size unsigned int w = width - base_width, h = height - base_height; if (min_aspect_y > 0 && w * min_aspect_y < min_aspect_x * h) { closestPointToAspect(w, h, w, h, min_aspect_x, min_aspect_y); // new w must be > old w, new h must be < old h w = increaseToMultiple(w, width_inc); h = decreaseToMultiple(h, height_inc); } else if (max_aspect_x > 0 && w * max_aspect_y > max_aspect_x * h) { closestPointToAspect(w, h, w, h, max_aspect_x, max_aspect_y); // new w must be < old w, new h must be > old h w = decreaseToMultiple(w, width_inc); h = increaseToMultiple(h, height_inc); } // Check minimum size if (w + base_width < min_width) { w = increaseToMultiple(min_width - base_width, width_inc); // need to check maximum aspect again if (max_aspect_x > 0 && w * max_aspect_y > max_aspect_x * h) h = increaseToMultiple(w * max_aspect_y / max_aspect_x, height_inc); } if (h + base_height < min_height) { h = increaseToMultiple(min_height - base_height, height_inc); // need to check minimum aspect again if (min_aspect_y > 0 && w * min_aspect_y < min_aspect_x * h) w = increaseToMultiple(h * min_aspect_x / min_aspect_y, width_inc); } unsigned int max_w = make_fit && (width < max_width || max_width == 0) ? width : max_width; unsigned int max_h = make_fit && (height < max_height || max_height == 0) ? height : max_height; // Check maximum size if (max_w > 0 && w + base_width > max_w) w = max_w - base_width; if (max_h > 0 && h + base_height > max_h) h = max_h - base_height; w = decreaseToMultiple(w, width_inc); h = decreaseToMultiple(h, height_inc); // need to check aspects one more time if (min_aspect_y > 0 && w * min_aspect_y < min_aspect_x * h) h = decreaseToMultiple(w * min_aspect_y / min_aspect_x, height_inc); if (max_aspect_x > 0 && w * max_aspect_y > max_aspect_x * h) w = decreaseToMultiple(h * max_aspect_x / max_aspect_y, width_inc); width = w + base_width; height = h + base_height; } // check if the given width and height satisfy the size hints bool FbWinFrame::SizeHints::valid(unsigned int w, unsigned int h) const { if (w < min_width || h < min_height) return false; if (w > max_width || h > max_height) return false; if ((w - base_width) % width_inc != 0) return false; if ((h - base_height) % height_inc != 0) return false; if (min_aspect_x * (h - base_height) > (w - base_width) * min_aspect_y) return false; if (max_aspect_x * (h - base_height) < (w - base_width) * max_aspect_y) return false; return true; } void FbWinFrame::SizeHints::displaySize(unsigned int &i, unsigned int &j, unsigned int width, unsigned int height) const { i = (width - base_width) / width_inc; j = (height - base_height) / height_inc; }