moved placement strategies to different PlacementStrategy classes

1 files changed, 207 insertions, 0 deletions

diff --git a/src/ScreenPlacement.cc b/src/ScreenPlacement.cc
new file mode 100644
index 0000000..b455fc7
--- /dev/null
+++ b/src/ScreenPlacement.cc
@@ -0,0 +1,207 @@
+// ScreenPlacement.cc
+// Copyright (c) 2006 Fluxbox Team (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.
+
+// $Id$
+
+#include "ScreenPlacement.hh"
+
+
+#include "RowSmartPlacement.hh"
+#include "UnderMousePlacement.hh"
+#include "ColSmartPlacement.hh"
+#include "CascadePlacement.hh"
+
+#include "Screen.hh"
+#include "Window.hh"
+
+#include <iostream>
+#include <exception>
+using std::cerr;
+using std::endl;
+
+ScreenPlacement::ScreenPlacement(BScreen &screen):
+    m_row_direction(screen.resourceManager(), LEFTRIGHT, 
+                    screen.name()+".rowPlacementDirection", 
+                    screen.altName()+".RowPlacementDirection"),
+    m_col_direction(screen.resourceManager(), TOPBOTTOM, 
+                    screen.name()+".colPlacementDirection", 
+                    screen.altName()+".ColPlacementDirection"),
+    m_placement_policy(screen.resourceManager(), ROWSMARTPLACEMENT, 
+                       screen.name()+".windowPlacement", 
+                       screen.altName()+".WindowPlacement"),
+    m_old_policy(*m_placement_policy),
+    m_strategy(new RowSmartPlacement())
+{
+}
+
+bool ScreenPlacement::placeWindow(const std::vector<FluxboxWindow *> &windowlist,
+                                  const FluxboxWindow &win,
+                                  int &place_x, int &place_y) {
+
+    // check the resource placement and see if has changed
+    // and if so update the strategy
+    if (m_old_policy != *m_placement_policy) {
+        m_old_policy = *m_placement_policy;
+        switch (*m_placement_policy) {
+        case ROWSMARTPLACEMENT:
+            m_strategy.reset(new RowSmartPlacement());
+            break;
+        case COLSMARTPLACEMENT:
+            m_strategy.reset(new ColSmartPlacement());
+            break;
+        case CASCADEPLACEMENT:
+            m_strategy.reset(new CascadePlacement(win.screen()));
+            break;
+        case UNDERMOUSEPLACEMENT:
+            m_strategy.reset(new UnderMousePlacement());
+            break;
+        }
+    }
+
+    // view (screen + head) constraints
+    int head = (signed) win.screen().getCurrHead();
+    int head_left = (signed) win.screen().maxLeft(head);
+    int head_right = (signed) win.screen().maxRight(head);
+    int head_top = (signed) win.screen().maxTop(head);
+    int head_bot = (signed) win.screen().maxBottom(head);
+
+    // start placement, top left corner
+    place_x = head_left;
+    place_y = head_top;
+
+    bool placed = false;
+    try {
+        placed = m_strategy->placeWindow(windowlist,
+                                         win,
+                                         place_x, place_y);
+    } catch (std::bad_cast cast) {
+        // This should not happen. 
+        // If for some reason we change the PlacementStrategy in Screen
+        // from ScreenPlacement to something else then we might get 
+        // bad_cast from some placement strategies.
+        cerr<<"Failed to place window: "<<cast.what()<<endl;
+    }
+
+    if (!placed) {
+        // Create fallback strategy, when we need it the first time
+        // This strategy must succeed!
+        if (m_fallback_strategy.get() == 0)
+            m_fallback_strategy.reset(new CascadePlacement(win.screen()));
+
+        m_fallback_strategy->placeWindow(windowlist,
+                                         win,
+                                         place_x, place_y);
+    }
+
+
+
+    int win_w = win.width() + win.fbWindow().borderWidth()*2,
+        win_h = win.height() + win.fbWindow().borderWidth()*2;
+
+
+    // make sure the window is inside our screen(head) area
+    if (place_x + win_w > head_right)
+        place_x = (head_right - win_w) / 2;
+    if (place_y + win_h > head_bot)
+        place_y = (head_bot - win_h) / 2;
+
+    return true;
+}
+
+
+
+////////////////////// Placement Resources
+template <>
+void FbTk::Resource<ScreenPlacement::PlacementPolicy>::setFromString(const char *str) {
+    if (strcasecmp("RowSmartPlacement", str) == 0)
+        *(*this) = ScreenPlacement::ROWSMARTPLACEMENT;
+    else if (strcasecmp("ColSmartPlacement", str) == 0)
+        *(*this) = ScreenPlacement::COLSMARTPLACEMENT;
+    else if (strcasecmp("UnderMousePlacement", str) == 0)
+        *(*this) = ScreenPlacement::UNDERMOUSEPLACEMENT;
+    else if (strcasecmp("CascadePlacement", str) == 0)
+        *(*this) = ScreenPlacement::CASCADEPLACEMENT;
+    else
+        setDefaultValue();
+}
+
+template <>
+std::string FbTk::Resource<ScreenPlacement::PlacementPolicy>::getString() const {
+    switch (*(*this)) {
+    case ScreenPlacement::ROWSMARTPLACEMENT:
+        return "RowSmartPlacement";
+    case ScreenPlacement::COLSMARTPLACEMENT:
+        return "ColSmartPlacement";
+    case ScreenPlacement::UNDERMOUSEPLACEMENT:
+        return "UnderMousePlacement";
+    case ScreenPlacement::CASCADEPLACEMENT:
+        return "CascadePlacement";
+    }
+
+    return "RowSmartPlacement";
+}
+
+template <>
+void FbTk::Resource<ScreenPlacement::RowDirection>::setFromString(const char *str) {
+    if (strcasecmp("LeftToRight", str) == 0)
+        *(*this) = ScreenPlacement::LEFTRIGHT;
+    else if (strcasecmp("RightToLeft", str) == 0)
+        *(*this) = ScreenPlacement::RIGHTLEFT;
+    else
+        setDefaultValue();
+    
+}
+
+template <>
+std::string FbTk::Resource<ScreenPlacement::RowDirection>::getString() const {
+    switch (*(*this)) {
+    case ScreenPlacement::LEFTRIGHT:
+        return "LeftToRight";
+    case ScreenPlacement::RIGHTLEFT:
+        return "RightToLeft";
+    }
+
+    return "LeftToRight";
+}
+
+
+template <>
+void FbTk::Resource<ScreenPlacement::ColumnDirection>::setFromString(const char *str) {
+    if (strcasecmp("TopToBottom", str) == 0)
+        *(*this) = ScreenPlacement::TOPBOTTOM;
+    else if (strcasecmp("BottomToTop", str) == 0)
+        *(*this) = ScreenPlacement::BOTTOMTOP;
+    else
+        setDefaultValue();
+    
+}
+
+template <>
+std::string FbTk::Resource<ScreenPlacement::ColumnDirection>::getString() const {
+    switch (*(*this)) {
+    case ScreenPlacement::TOPBOTTOM:
+        return "TopToBottom";
+    case ScreenPlacement::BOTTOMTOP:
+        return "BottomToTop";
+    }
+
+    return "TopToBottom";
+}