| # | |
| # tkdnd_windows.tcl -- | |
| # | |
| # This file implements some utility procedures that are used by the TkDND | |
| # package. | |
| # | |
| # This software is copyrighted by: | |
| # George Petasis, National Centre for Scientific Research "Demokritos", | |
| # Aghia Paraskevi, Athens, Greece. | |
| # e-mail: [email protected] | |
| # | |
| # The following terms apply to all files associated | |
| # with the software unless explicitly disclaimed in individual files. | |
| # | |
| # The authors hereby grant permission to use, copy, modify, distribute, | |
| # and license this software and its documentation for any purpose, provided | |
| # that existing copyright notices are retained in all copies and that this | |
| # notice is included verbatim in any distributions. No written agreement, | |
| # license, or royalty fee is required for any of the authorized uses. | |
| # Modifications to this software may be copyrighted by their authors | |
| # and need not follow the licensing terms described here, provided that | |
| # the new terms are clearly indicated on the first page of each file where | |
| # they apply. | |
| # | |
| # IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY | |
| # FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES | |
| # ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY | |
| # DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE | |
| # POSSIBILITY OF SUCH DAMAGE. | |
| # | |
| # THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES, | |
| # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, | |
| # FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE | |
| # IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE | |
| # NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR | |
| # MODIFICATIONS. | |
| # | |
| namespace eval olednd { | |
| proc initialise { } { | |
| ## Mapping from platform types to TkDND types... | |
| ::tkdnd::generic::initialise_platform_to_tkdnd_types [list \ | |
| CF_UNICODETEXT DND_Text \ | |
| CF_TEXT DND_Text \ | |
| CF_HDROP DND_Files \ | |
| UniformResourceLocator DND_URL \ | |
| CF_HTML DND_HTML \ | |
| {HTML Format} DND_HTML \ | |
| CF_RTF DND_RTF \ | |
| CF_RTFTEXT DND_RTF \ | |
| {Rich Text Format} DND_RTF \ | |
| ] | |
| # FileGroupDescriptorW DND_Files \ | |
| # FileGroupDescriptor DND_Files \ | |
| ## Mapping from TkDND types to platform types... | |
| ::tkdnd::generic::initialise_tkdnd_to_platform_types [list \ | |
| DND_Text {CF_UNICODETEXT CF_TEXT} \ | |
| DND_Files {CF_HDROP} \ | |
| DND_URL {UniformResourceLocator UniformResourceLocatorW} \ | |
| DND_HTML {CF_HTML {HTML Format}} \ | |
| DND_RTF {CF_RTF CF_RTFTEXT {Rich Text Format}} \ | |
| ] | |
| };# initialise | |
| };# namespace olednd | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::HandleDragEnter | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::HandleDragEnter { drop_target typelist actionlist pressedkeys | |
| rootX rootY codelist { data {} } } { | |
| ::tkdnd::generic::SetDroppedData $data | |
| focus $drop_target | |
| ::tkdnd::generic::HandleEnter $drop_target 0 $typelist \ | |
| $codelist $actionlist $pressedkeys | |
| set action [::tkdnd::generic::HandlePosition $drop_target {} \ | |
| $pressedkeys $rootX $rootY] | |
| if {$::tkdnd::_auto_update} {update idletasks} | |
| return $action | |
| };# olednd::HandleDragEnter | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::HandleDragOver | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::HandleDragOver { drop_target pressedkeys rootX rootY } { | |
| set action [::tkdnd::generic::HandlePosition $drop_target {} \ | |
| $pressedkeys $rootX $rootY] | |
| if {$::tkdnd::_auto_update} {update idletasks} | |
| return $action | |
| };# olednd::HandleDragOver | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::HandleDragLeave | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::HandleDragLeave { drop_target } { | |
| ::tkdnd::generic::HandleLeave | |
| if {$::tkdnd::_auto_update} {update idletasks} | |
| };# olednd::HandleDragLeave | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::HandleDrop | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::HandleDrop { drop_target pressedkeys rootX rootY type data } { | |
| ::tkdnd::generic::SetDroppedData [normalise_data $type $data] | |
| set action [::tkdnd::generic::HandleDrop $drop_target {} \ | |
| $pressedkeys $rootX $rootY 0] | |
| if {$::tkdnd::_auto_update} {update idletasks} | |
| return $action | |
| };# olednd::HandleDrop | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::GetDataType | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::GetDataType { drop_target typelist } { | |
| foreach {drop_target common_drag_source_types common_drop_target_types} \ | |
| [::tkdnd::generic::FindWindowWithCommonTypes $drop_target $typelist] {break} | |
| lindex $common_drag_source_types 0 | |
| };# olednd::GetDataType | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::GetDragSourceCommonTypes | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::GetDragSourceCommonTypes { drop_target } { | |
| ::tkdnd::generic::GetDragSourceCommonTypes | |
| };# olednd::GetDragSourceCommonTypes | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::platform_specific_types | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::platform_specific_types { types } { | |
| ::tkdnd::generic::platform_specific_types $types | |
| }; # olednd::platform_specific_types | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::platform_specific_type | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::platform_specific_type { type } { | |
| ::tkdnd::generic::platform_specific_type $type | |
| }; # olednd::platform_specific_type | |
| # ---------------------------------------------------------------------------- | |
| # Command tkdnd::platform_independent_types | |
| # ---------------------------------------------------------------------------- | |
| proc ::tkdnd::platform_independent_types { types } { | |
| ::tkdnd::generic::platform_independent_types $types | |
| }; # tkdnd::platform_independent_types | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::platform_independent_type | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::platform_independent_type { type } { | |
| ::tkdnd::generic::platform_independent_type $type | |
| }; # olednd::platform_independent_type | |
| # ---------------------------------------------------------------------------- | |
| # Command olednd::normalise_data | |
| # ---------------------------------------------------------------------------- | |
| proc olednd::normalise_data { type data } { | |
| switch [lindex [::tkdnd::generic::platform_independent_type $type] 0] { | |
| DND_Text {return $data} | |
| DND_Files {return $data} | |
| DND_HTML {return [encoding convertfrom utf-8 $data]} | |
| default {return $data} | |
| } | |
| }; # olednd::normalise_data | |